Adding upstream version 1.47.0.upstream/1.47.0upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 4009 insertions, 0 deletions

diff --git a/misc/fuse2fs.c b/misc/fuse2fs.c
new file mode 100644
index 0000000..0dc77ea
--- /dev/null
+++ b/misc/fuse2fs.c
@@ -0,0 +1,4009 @@
+/*
+ * fuse2fs.c - FUSE server for e2fsprogs.
+ *
+ * Copyright (C) 2014 Oracle.
+ *
+ * %Begin-Header%
+ * This file may be redistributed under the terms of the GNU Public
+ * License.
+ * %End-Header%
+ */
+#define _FILE_OFFSET_BITS 64
+#define FUSE_USE_VERSION 29
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
+#include "config.h"
+#include <pthread.h>
+#ifdef __linux__
+# include <linux/fs.h>
+# include <linux/falloc.h>
+# include <linux/xattr.h>
+# define FUSE_PLATFORM_OPTS	",big_writes"
+# ifdef HAVE_SYS_ACL_H
+#  define TRANSLATE_LINUX_ACLS
+# endif
+#else
+# define FUSE_PLATFORM_OPTS	""
+#endif
+#ifdef TRANSLATE_LINUX_ACLS
+# include <sys/acl.h>
+#endif
+#include <sys/ioctl.h>
+#include <unistd.h>
+#include <fuse.h>
+#include <inttypes.h>
+#include "ext2fs/ext2fs.h"
+#include "ext2fs/ext2_fs.h"
+
+#include "../version.h"
+
+#ifdef ENABLE_NLS
+#include <libintl.h>
+#include <locale.h>
+#define _(a) (gettext(a))
+#ifdef gettext_noop
+#define N_(a) gettext_noop(a)
+#else
+#define N_(a) (a)
+#endif
+#define P_(singular, plural, n) (ngettext(singular, plural, n))
+#ifndef NLS_CAT_NAME
+#define NLS_CAT_NAME "e2fsprogs"
+#endif
+#ifndef LOCALEDIR
+#define LOCALEDIR "/usr/share/locale"
+#endif
+#else
+#define _(a) (a)
+#define N_(a) a
+#define P_(singular, plural, n) ((n) == 1 ? (singular) : (plural))
+#endif
+
+static ext2_filsys global_fs; /* Try not to use this directly */
+
+#undef DEBUG
+
+#ifdef DEBUG
+# define dbg_printf(f, a...)  do {printf("FUSE2FS-" f, ## a); \
+	fflush(stdout); \
+} while (0)
+#else
+# define dbg_printf(f, a...)
+#endif
+
+#if FUSE_VERSION >= FUSE_MAKE_VERSION(2, 8)
+# ifdef _IOR
+#  ifdef _IOW
+#   define SUPPORT_I_FLAGS
+#  endif
+# endif
+#endif
+
+#ifdef FALLOC_FL_KEEP_SIZE
+# define FL_KEEP_SIZE_FLAG FALLOC_FL_KEEP_SIZE
+# define SUPPORT_FALLOCATE
+#else
+# define FL_KEEP_SIZE_FLAG (0)
+#endif
+
+#ifdef FALLOC_FL_PUNCH_HOLE
+# define FL_PUNCH_HOLE_FLAG FALLOC_FL_PUNCH_HOLE
+#else
+# define FL_PUNCH_HOLE_FLAG (0)
+#endif
+
+errcode_t ext2fs_run_ext3_journal(ext2_filsys *fs);
+
+#ifdef CONFIG_JBD_DEBUG		/* Enabled by configure --enable-jbd-debug */
+int journal_enable_debug = -1;
+#endif
+
+/* ACL translation stuff */
+#ifdef TRANSLATE_LINUX_ACLS
+/*
+ * Copied from acl_ea.h in libacl source; ACLs have to be sent to and from fuse
+ * in this format... at least on Linux.
+ */
+#define ACL_EA_ACCESS		"system.posix_acl_access"
+#define ACL_EA_DEFAULT		"system.posix_acl_default"
+
+#define ACL_EA_VERSION		0x0002
+
+typedef struct {
+	u_int16_t	e_tag;
+	u_int16_t	e_perm;
+	u_int32_t	e_id;
+} acl_ea_entry;
+
+typedef struct {
+	u_int32_t	a_version;
+#if __GNUC_PREREQ (4, 8)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wpedantic"
+#endif
+	acl_ea_entry	a_entries[0];
+#if __GNUC_PREREQ (4, 8)
+#pragma GCC diagnostic pop
+#endif
+} acl_ea_header;
+
+static inline size_t acl_ea_size(int count)
+{
+	return sizeof(acl_ea_header) + count * sizeof(acl_ea_entry);
+}
+
+static inline int acl_ea_count(size_t size)
+{
+	if (size < sizeof(acl_ea_header))
+		return -1;
+	size -= sizeof(acl_ea_header);
+	if (size % sizeof(acl_ea_entry))
+		return -1;
+	return size / sizeof(acl_ea_entry);
+}
+
+/*
+ * ext4 ACL structures, copied from fs/ext4/acl.h.
+ */
+#define EXT4_ACL_VERSION	0x0001
+
+typedef struct {
+	__u16		e_tag;
+	__u16		e_perm;
+	__u32		e_id;
+} ext4_acl_entry;
+
+typedef struct {
+	__u16		e_tag;
+	__u16		e_perm;
+} ext4_acl_entry_short;
+
+typedef struct {
+	__u32		a_version;
+} ext4_acl_header;
+
+static inline size_t ext4_acl_size(int count)
+{
+	if (count <= 4) {
+		return sizeof(ext4_acl_header) +
+		       count * sizeof(ext4_acl_entry_short);
+	} else {
+		return sizeof(ext4_acl_header) +
+		       4 * sizeof(ext4_acl_entry_short) +
+		       (count - 4) * sizeof(ext4_acl_entry);
+	}
+}
+
+static inline int ext4_acl_count(size_t size)
+{
+	ssize_t s;
+
+	size -= sizeof(ext4_acl_header);
+	s = size - 4 * sizeof(ext4_acl_entry_short);
+	if (s < 0) {
+		if (size % sizeof(ext4_acl_entry_short))
+			return -1;
+		return size / sizeof(ext4_acl_entry_short);
+	}
+	if (s % sizeof(ext4_acl_entry))
+		return -1;
+	return s / sizeof(ext4_acl_entry) + 4;
+}
+
+static errcode_t fuse_to_ext4_acl(acl_ea_header *facl, size_t facl_sz,
+				  ext4_acl_header **eacl, size_t *eacl_sz)
+{
+	int i, facl_count;
+	ext4_acl_header *h;
+	size_t h_sz;
+	ext4_acl_entry *e;
+	acl_ea_entry *a;
+	unsigned char *hptr;
+	errcode_t err;
+
+	facl_count = acl_ea_count(facl_sz);
+	h_sz = ext4_acl_size(facl_count);
+	if (facl_count < 0 || facl->a_version != ACL_EA_VERSION)
+		return EXT2_ET_INVALID_ARGUMENT;
+
+	err = ext2fs_get_mem(h_sz, &h);
+	if (err)
+		return err;
+
+	h->a_version = ext2fs_cpu_to_le32(EXT4_ACL_VERSION);
+	hptr = (unsigned char *) (h + 1);
+	for (i = 0, a = facl->a_entries; i < facl_count; i++, a++) {
+		e = (ext4_acl_entry *) hptr;
+		e->e_tag = ext2fs_cpu_to_le16(a->e_tag);
+		e->e_perm = ext2fs_cpu_to_le16(a->e_perm);
+
+		switch (a->e_tag) {
+		case ACL_USER:
+		case ACL_GROUP:
+			e->e_id = ext2fs_cpu_to_le32(a->e_id);
+			hptr += sizeof(ext4_acl_entry);
+			break;
+		case ACL_USER_OBJ:
+		case ACL_GROUP_OBJ:
+		case ACL_MASK:
+		case ACL_OTHER:
+			hptr += sizeof(ext4_acl_entry_short);
+			break;
+		default:
+			err = EXT2_ET_INVALID_ARGUMENT;
+			goto out;
+		}
+	}
+
+	*eacl = h;
+	*eacl_sz = h_sz;
+	return err;
+out:
+	ext2fs_free_mem(&h);
+	return err;
+}
+
+static errcode_t ext4_to_fuse_acl(acl_ea_header **facl, size_t *facl_sz,
+				  ext4_acl_header *eacl, size_t eacl_sz)
+{
+	int i, eacl_count;
+	acl_ea_header *f;
+	ext4_acl_entry *e;
+	acl_ea_entry *a;
+	size_t f_sz;
+	unsigned char *hptr;
+	errcode_t err;
+
+	eacl_count = ext4_acl_count(eacl_sz);
+	f_sz = acl_ea_size(eacl_count);
+	if (eacl_count < 0 ||
+	    eacl->a_version != ext2fs_cpu_to_le32(EXT4_ACL_VERSION))
+		return EXT2_ET_INVALID_ARGUMENT;
+
+	err = ext2fs_get_mem(f_sz, &f);
+	if (err)
+		return err;
+
+	f->a_version = ACL_EA_VERSION;
+	hptr = (unsigned char *) (eacl + 1);
+	for (i = 0, a = f->a_entries; i < eacl_count; i++, a++) {
+		e = (ext4_acl_entry *) hptr;
+		a->e_tag = ext2fs_le16_to_cpu(e->e_tag);
+		a->e_perm = ext2fs_le16_to_cpu(e->e_perm);
+
+		switch (a->e_tag) {
+		case ACL_USER:
+		case ACL_GROUP:
+			a->e_id = ext2fs_le32_to_cpu(e->e_id);
+			hptr += sizeof(ext4_acl_entry);
+			break;
+		case ACL_USER_OBJ:
+		case ACL_GROUP_OBJ:
+		case ACL_MASK:
+		case ACL_OTHER:
+			hptr += sizeof(ext4_acl_entry_short);
+			break;
+		default:
+			err = EXT2_ET_INVALID_ARGUMENT;
+			goto out;
+		}
+	}
+
+	*facl = f;
+	*facl_sz = f_sz;
+	return err;
+out:
+	ext2fs_free_mem(&f);
+	return err;
+}
+#endif /* TRANSLATE_LINUX_ACLS */
+
+/*
+ * ext2_file_t contains a struct inode, so we can't leave files open.
+ * Use this as a proxy instead.
+ */
+#define FUSE2FS_FILE_MAGIC	(0xEF53DEAFUL)
+struct fuse2fs_file_handle {
+	unsigned long magic;
+	ext2_ino_t ino;
+	int open_flags;
+};
+
+/* Main program context */
+#define FUSE2FS_MAGIC		(0xEF53DEADUL)
+struct fuse2fs {
+	unsigned long magic;
+	ext2_filsys fs;
+	pthread_mutex_t bfl;
+	char *device;
+	int ro;
+	int debug;
+	int no_default_opts;
+	int panic_on_error;
+	int minixdf;
+	int fakeroot;
+	int alloc_all_blocks;
+	int norecovery;
+	unsigned long offset;
+	FILE *err_fp;
+	unsigned int next_generation;
+};
+
+#define FUSE2FS_CHECK_MAGIC(fs, ptr, num) do {if ((ptr)->magic != (num)) \
+	return translate_error((fs), 0, EXT2_ET_MAGIC_EXT2_FILE); \
+} while (0)
+
+#define FUSE2FS_CHECK_CONTEXT(ptr) do {if ((ptr)->magic != FUSE2FS_MAGIC) \
+	return translate_error(global_fs, 0, EXT2_ET_BAD_MAGIC); \
+} while (0)
+
+static int __translate_error(ext2_filsys fs, errcode_t err, ext2_ino_t ino,
+			     const char *file, int line);
+#define translate_error(fs, ino, err) __translate_error((fs), (err), (ino), \
+			__FILE__, __LINE__)
+
+/* for macosx */
+#ifndef W_OK
+#  define W_OK 2
+#endif
+
+#ifndef R_OK
+#  define R_OK 4
+#endif
+
+#define EXT4_EPOCH_BITS 2
+#define EXT4_EPOCH_MASK ((1 << EXT4_EPOCH_BITS) - 1)
+#define EXT4_NSEC_MASK  (~0UL << EXT4_EPOCH_BITS)
+
+/*
+ * Extended fields will fit into an inode if the filesystem was formatted
+ * with large inodes (-I 256 or larger) and there are not currently any EAs
+ * consuming all of the available space. For new inodes we always reserve
+ * enough space for the kernel's known extended fields, but for inodes
+ * created with an old kernel this might not have been the case. None of
+ * the extended inode fields is critical for correct filesystem operation.
+ * This macro checks if a certain field fits in the inode. Note that
+ * inode-size = GOOD_OLD_INODE_SIZE + i_extra_isize
+ */
+#define EXT4_FITS_IN_INODE(ext4_inode, field)		\
+	((offsetof(typeof(*ext4_inode), field) +	\
+	  sizeof((ext4_inode)->field))			\
+	 <= ((size_t) EXT2_GOOD_OLD_INODE_SIZE +		\
+	    (ext4_inode)->i_extra_isize))		\
+
+static inline __u32 ext4_encode_extra_time(const struct timespec *time)
+{
+	__u32 extra = sizeof(time->tv_sec) > 4 ?
+			((time->tv_sec - (__s32)time->tv_sec) >> 32) &
+			EXT4_EPOCH_MASK : 0;
+	return extra | (time->tv_nsec << EXT4_EPOCH_BITS);
+}
+
+static inline void ext4_decode_extra_time(struct timespec *time, __u32 extra)
+{
+	if (sizeof(time->tv_sec) > 4 && (extra & EXT4_EPOCH_MASK)) {
+		__u64 extra_bits = extra & EXT4_EPOCH_MASK;
+		/*
+		 * Prior to kernel 3.14?, we had a broken decode function,
+		 * wherein we effectively did this:
+		 * if (extra_bits == 3)
+		 *     extra_bits = 0;
+		 */
+		time->tv_sec += extra_bits << 32;
+	}
+	time->tv_nsec = ((extra) & EXT4_NSEC_MASK) >> EXT4_EPOCH_BITS;
+}
+
+#define EXT4_INODE_SET_XTIME(xtime, timespec, raw_inode)		       \
+do {									       \
+	(raw_inode)->xtime = (timespec)->tv_sec;			       \
+	if (EXT4_FITS_IN_INODE(raw_inode, xtime ## _extra))		       \
+		(raw_inode)->xtime ## _extra =				       \
+				ext4_encode_extra_time(timespec);	       \
+} while (0)
+
+#define EXT4_EINODE_SET_XTIME(xtime, timespec, raw_inode)		       \
+do {									       \
+	if (EXT4_FITS_IN_INODE(raw_inode, xtime))			       \
+		(raw_inode)->xtime = (timespec)->tv_sec;		       \
+	if (EXT4_FITS_IN_INODE(raw_inode, xtime ## _extra))		       \
+		(raw_inode)->xtime ## _extra =				       \
+				ext4_encode_extra_time(timespec);	       \
+} while (0)
+
+#define EXT4_INODE_GET_XTIME(xtime, timespec, raw_inode)		       \
+do {									       \
+	(timespec)->tv_sec = (signed)((raw_inode)->xtime);		       \
+	if (EXT4_FITS_IN_INODE(raw_inode, xtime ## _extra))		       \
+		ext4_decode_extra_time((timespec),			       \
+				       (raw_inode)->xtime ## _extra);	       \
+	else								       \
+		(timespec)->tv_nsec = 0;				       \
+} while (0)
+
+#define EXT4_EINODE_GET_XTIME(xtime, timespec, raw_inode)		       \
+do {									       \
+	if (EXT4_FITS_IN_INODE(raw_inode, xtime))			       \
+		(timespec)->tv_sec =					       \
+			(signed)((raw_inode)->xtime);			       \
+	if (EXT4_FITS_IN_INODE(raw_inode, xtime ## _extra))		       \
+		ext4_decode_extra_time((timespec),			       \
+				       raw_inode->xtime ## _extra);	       \
+	else								       \
+		(timespec)->tv_nsec = 0;				       \
+} while (0)
+
+static void get_now(struct timespec *now)
+{
+#ifdef CLOCK_REALTIME
+	if (!clock_gettime(CLOCK_REALTIME, now))
+		return;
+#endif
+
+	now->tv_sec = time(NULL);
+	now->tv_nsec = 0;
+}
+
+static void increment_version(struct ext2_inode_large *inode)
+{
+	__u64 ver;
+
+	ver = inode->osd1.linux1.l_i_version;
+	if (EXT4_FITS_IN_INODE(inode, i_version_hi))
+		ver |= (__u64)inode->i_version_hi << 32;
+	ver++;
+	inode->osd1.linux1.l_i_version = ver;
+	if (EXT4_FITS_IN_INODE(inode, i_version_hi))
+		inode->i_version_hi = ver >> 32;
+}
+
+static void init_times(struct ext2_inode_large *inode)
+{
+	struct timespec now;
+
+	get_now(&now);
+	EXT4_INODE_SET_XTIME(i_atime, &now, inode);
+	EXT4_INODE_SET_XTIME(i_ctime, &now, inode);
+	EXT4_INODE_SET_XTIME(i_mtime, &now, inode);
+	EXT4_EINODE_SET_XTIME(i_crtime, &now, inode);
+	increment_version(inode);
+}
+
+static int update_ctime(ext2_filsys fs, ext2_ino_t ino,
+			struct ext2_inode_large *pinode)
+{
+	errcode_t err;
+	struct timespec now;
+	struct ext2_inode_large inode;
+
+	get_now(&now);
+
+	/* If user already has a inode buffer, just update that */
+	if (pinode) {
+		increment_version(pinode);
+		EXT4_INODE_SET_XTIME(i_ctime, &now, pinode);
+		return 0;
+	}
+
+	/* Otherwise we have to read-modify-write the inode */
+	memset(&inode, 0, sizeof(inode));
+	err = ext2fs_read_inode_full(fs, ino, (struct ext2_inode *)&inode,
+				     sizeof(inode));
+	if (err)
+		return translate_error(fs, ino, err);
+
+	increment_version(&inode);
+	EXT4_INODE_SET_XTIME(i_ctime, &now, &inode);
+
+	err = ext2fs_write_inode_full(fs, ino, (struct ext2_inode *)&inode,
+				      sizeof(inode));
+	if (err)
+		return translate_error(fs, ino, err);
+
+	return 0;
+}
+
+static int update_atime(ext2_filsys fs, ext2_ino_t ino)
+{
+	errcode_t err;
+	struct ext2_inode_large inode, *pinode;
+	struct timespec atime, mtime, now;
+
+	if (!(fs->flags & EXT2_FLAG_RW))
+		return 0;
+	memset(&inode, 0, sizeof(inode));
+	err = ext2fs_read_inode_full(fs, ino, (struct ext2_inode *)&inode,
+				     sizeof(inode));
+	if (err)
+		return translate_error(fs, ino, err);
+
+	pinode = &inode;
+	EXT4_INODE_GET_XTIME(i_atime, &atime, pinode);
+	EXT4_INODE_GET_XTIME(i_mtime, &mtime, pinode);
+	get_now(&now);
+	/*
+	 * If atime is newer than mtime and atime hasn't been updated in thirty
+	 * seconds, skip the atime update.  Same idea as Linux "relatime".
+	 */
+	if (atime.tv_sec >= mtime.tv_sec && atime.tv_sec >= now.tv_sec - 30)
+		return 0;
+	EXT4_INODE_SET_XTIME(i_atime, &now, &inode);
+
+	err = ext2fs_write_inode_full(fs, ino, (struct ext2_inode *)&inode,
+				      sizeof(inode));
+	if (err)
+		return translate_error(fs, ino, err);
+
+	return 0;
+}
+
+static int update_mtime(ext2_filsys fs, ext2_ino_t ino,
+			struct ext2_inode_large *pinode)
+{
+	errcode_t err;
+	struct ext2_inode_large inode;
+	struct timespec now;
+
+	if (pinode) {
+		get_now(&now);
+		EXT4_INODE_SET_XTIME(i_mtime, &now, pinode);
+		EXT4_INODE_SET_XTIME(i_ctime, &now, pinode);
+		increment_version(pinode);
+		return 0;
+	}
+
+	memset(&inode, 0, sizeof(inode));
+	err = ext2fs_read_inode_full(fs, ino, (struct ext2_inode *)&inode,
+				     sizeof(inode));
+	if (err)
+		return translate_error(fs, ino, err);
+
+	get_now(&now);
+	EXT4_INODE_SET_XTIME(i_mtime, &now, &inode);
+	EXT4_INODE_SET_XTIME(i_ctime, &now, &inode);
+	increment_version(&inode);
+
+	err = ext2fs_write_inode_full(fs, ino, (struct ext2_inode *)&inode,
+				      sizeof(inode));
+	if (err)
+		return translate_error(fs, ino, err);
+
+	return 0;
+}
+
+static int ext2_file_type(unsigned int mode)
+{
+	if (LINUX_S_ISREG(mode))
+		return EXT2_FT_REG_FILE;
+
+	if (LINUX_S_ISDIR(mode))
+		return EXT2_FT_DIR;
+
+	if (LINUX_S_ISCHR(mode))
+		return EXT2_FT_CHRDEV;
+
+	if (LINUX_S_ISBLK(mode))
+		return EXT2_FT_BLKDEV;
+
+	if (LINUX_S_ISLNK(mode))
+		return EXT2_FT_SYMLINK;
+
+	if (LINUX_S_ISFIFO(mode))
+		return EXT2_FT_FIFO;
+
+	if (LINUX_S_ISSOCK(mode))
+		return EXT2_FT_SOCK;
+
+	return 0;
+}
+
+static int fs_can_allocate(struct fuse2fs *ff, blk64_t num)
+{
+	ext2_filsys fs = ff->fs;
+	blk64_t reserved;
+
+	dbg_printf("%s: Asking for %llu; alloc_all=%d total=%llu free=%llu "
+		   "rsvd=%llu\n", __func__, num, ff->alloc_all_blocks,
+		   ext2fs_blocks_count(fs->super),
+		   ext2fs_free_blocks_count(fs->super),
+		   ext2fs_r_blocks_count(fs->super));
+	if (num > ext2fs_blocks_count(fs->super))
+		return 0;
+
+	if (ff->alloc_all_blocks)
+		return 1;
+
+	/*
+	 * Different meaning for r_blocks -- libext2fs has bugs where the FS
+	 * can get corrupted if it totally runs out of blocks.  Avoid this
+	 * by refusing to allocate any of the reserve blocks to anybody.
+	 */
+	reserved = ext2fs_r_blocks_count(fs->super);
+	if (reserved == 0)
+		reserved = ext2fs_blocks_count(fs->super) / 10;
+	return ext2fs_free_blocks_count(fs->super) > reserved + num;
+}
+
+static int fs_writeable(ext2_filsys fs)
+{
+	return (fs->flags & EXT2_FLAG_RW) && (fs->super->s_error_count == 0);
+}
+
+static int check_inum_access(ext2_filsys fs, ext2_ino_t ino, mode_t mask)
+{
+	struct fuse_context *ctxt = fuse_get_context();
+	struct fuse2fs *ff = (struct fuse2fs *)ctxt->private_data;
+	struct ext2_inode inode;
+	mode_t perms;
+	errcode_t err;
+
+	/* no writing to read-only or broken fs */
+	if ((mask & W_OK) && !fs_writeable(fs))
+		return -EROFS;
+
+	err = ext2fs_read_inode(fs, ino, &inode);
+	if (err)
+		return translate_error(fs, ino, err);
+	perms = inode.i_mode & 0777;
+
+	dbg_printf("access ino=%d mask=e%s%s%s perms=0%o fuid=%d fgid=%d "
+		   "uid=%d gid=%d\n", ino,
+		   (mask & R_OK ? "r" : ""), (mask & W_OK ? "w" : ""),
+		   (mask & X_OK ? "x" : ""), perms, inode_uid(inode),
+		   inode_gid(inode), ctxt->uid, ctxt->gid);
+
+	/* existence check */
+	if (mask == 0)
+		return 0;
+
+	/* is immutable? */
+	if ((mask & W_OK) &&
+	    (inode.i_flags & EXT2_IMMUTABLE_FL))
+		return -EACCES;
+
+	/* Figure out what root's allowed to do */
+	if (ff->fakeroot || ctxt->uid == 0) {
+		/* Non-file access always ok */
+		if (!LINUX_S_ISREG(inode.i_mode))
+			return 0;
+
+		/* R/W access to a file always ok */
+		if (!(mask & X_OK))
+			return 0;
+
+		/* X access to a file ok if a user/group/other can X */
+		if (perms & 0111)
+			return 0;
+
+		/* Trying to execute a file that's not executable. BZZT! */
+		return -EACCES;
+	}
+
+	/* allow owner, if perms match */
+	if (inode_uid(inode) == ctxt->uid) {
+		if ((mask & (perms >> 6)) == mask)
+			return 0;
+		return -EACCES;
+	}
+
+	/* allow group, if perms match */
+	if (inode_gid(inode) == ctxt->gid) {
+		if ((mask & (perms >> 3)) == mask)
+			return 0;
+		return -EACCES;
+	}
+
+	/* otherwise check other */
+	if ((mask & perms) == mask)
+		return 0;
+	return -EACCES;
+}
+
+static void op_destroy(void *p EXT2FS_ATTR((unused)))
+{
+	struct fuse_context *ctxt = fuse_get_context();
+	struct fuse2fs *ff = (struct fuse2fs *)ctxt->private_data;
+	ext2_filsys fs;
+	errcode_t err;
+
+	if (ff->magic != FUSE2FS_MAGIC) {
+		translate_error(global_fs, 0, EXT2_ET_BAD_MAGIC);
+		return;
+	}
+	fs = ff->fs;
+	dbg_printf("%s: dev=%s\n", __func__, fs->device_name);
+	if (fs->flags & EXT2_FLAG_RW) {
+		fs->super->s_state |= EXT2_VALID_FS;
+		if (fs->super->s_error_count)
+			fs->super->s_state |= EXT2_ERROR_FS;
+		ext2fs_mark_super_dirty(fs);
+		err = ext2fs_set_gdt_csum(fs);
+		if (err)
+			translate_error(fs, 0, err);
+
+		err = ext2fs_flush2(fs, 0);
+		if (err)
+			translate_error(fs, 0, err);
+	}
+}
+
+static void *op_init(struct fuse_conn_info *conn)
+{
+	struct fuse_context *ctxt = fuse_get_context();
+	struct fuse2fs *ff = (struct fuse2fs *)ctxt->private_data;
+	ext2_filsys fs;
+	errcode_t err;
+
+	if (ff->magic != FUSE2FS_MAGIC) {
+		translate_error(global_fs, 0, EXT2_ET_BAD_MAGIC);
+		return NULL;
+	}
+	fs = ff->fs;
+	dbg_printf("%s: dev=%s\n", __func__, fs->device_name);
+#ifdef FUSE_CAP_IOCTL_DIR
+	conn->want |= FUSE_CAP_IOCTL_DIR;
+#endif
+	if (fs->flags & EXT2_FLAG_RW) {
+		fs->super->s_mnt_count++;
+		fs->super->s_mtime = time(NULL);
+		fs->super->s_state &= ~EXT2_VALID_FS;
+		ext2fs_mark_super_dirty(fs);
+		err = ext2fs_flush2(fs, 0);
+		if (err)
+			translate_error(fs, 0, err);
+	}
+	return ff;
+}
+
+static int stat_inode(ext2_filsys fs, ext2_ino_t ino, struct stat *statbuf)
+{
+	struct ext2_inode_large inode;
+	dev_t fakedev = 0;
+	errcode_t err;
+	int ret = 0;
+	struct timespec tv;
+
+	memset(&inode, 0, sizeof(inode));
+	err = ext2fs_read_inode_full(fs, ino, (struct ext2_inode *)&inode,
+				     sizeof(inode));
+	if (err)
+		return translate_error(fs, ino, err);
+
+	memcpy(&fakedev, fs->super->s_uuid, sizeof(fakedev));
+	statbuf->st_dev = fakedev;
+	statbuf->st_ino = ino;
+	statbuf->st_mode = inode.i_mode;
+	statbuf->st_nlink = inode.i_links_count;
+	statbuf->st_uid = inode_uid(inode);
+	statbuf->st_gid = inode_gid(inode);
+	statbuf->st_size = EXT2_I_SIZE(&inode);
+	statbuf->st_blksize = fs->blocksize;
+	statbuf->st_blocks = ext2fs_get_stat_i_blocks(fs,
+						(struct ext2_inode *)&inode);
+	EXT4_INODE_GET_XTIME(i_atime, &tv, &inode);
+	statbuf->st_atime = tv.tv_sec;
+	EXT4_INODE_GET_XTIME(i_mtime, &tv, &inode);
+	statbuf->st_mtime = tv.tv_sec;
+	EXT4_INODE_GET_XTIME(i_ctime, &tv, &inode);
+	statbuf->st_ctime = tv.tv_sec;
+	if (LINUX_S_ISCHR(inode.i_mode) ||
+	    LINUX_S_ISBLK(inode.i_mode)) {
+		if (inode.i_block[0])
+			statbuf->st_rdev = inode.i_block[0];
+		else
+			statbuf->st_rdev = inode.i_block[1];
+	}
+
+	return ret;
+}
+
+static int op_getattr(const char *path, struct stat *statbuf)
+{
+	struct fuse_context *ctxt = fuse_get_context();
+	struct fuse2fs *ff = (struct fuse2fs *)ctxt->private_data;
+	ext2_filsys fs;
+	ext2_ino_t ino;
+	errcode_t err;
+	int ret = 0;
+
+	FUSE2FS_CHECK_CONTEXT(ff);
+	fs = ff->fs;
+	dbg_printf("%s: path=%s\n", __func__, path);
+	pthread_mutex_lock(&ff->bfl);
+	err = ext2fs_namei(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, path, &ino);
+	if (err) {
+		ret = translate_error(fs, 0, err);
+		goto out;
+	}
+	ret = stat_inode(fs, ino, statbuf);
+out:
+	pthread_mutex_unlock(&ff->bfl);
+	return ret;
+}
+
+static int op_readlink(const char *path, char *buf, size_t len)
+{
+	struct fuse_context *ctxt = fuse_get_context();
+	struct fuse2fs *ff = (struct fuse2fs *)ctxt->private_data;
+	ext2_filsys fs;
+	errcode_t err;
+	ext2_ino_t ino;
+	struct ext2_inode inode;
+	unsigned int got;
+	ext2_file_t file;
+	int ret = 0;
+
+	FUSE2FS_CHECK_CONTEXT(ff);
+	fs = ff->fs;
+	dbg_printf("%s: path=%s\n", __func__, path);
+	pthread_mutex_lock(&ff->bfl);
+	err = ext2fs_namei(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, path, &ino);
+	if (err || ino == 0) {
+		ret = translate_error(fs, 0, err);
+		goto out;
+	}
+
+	err = ext2fs_read_inode(fs, ino, &inode);
+	if (err) {
+		ret = translate_error(fs, ino, err);
+		goto out;
+	}
+
+	if (!LINUX_S_ISLNK(inode.i_mode)) {
+		ret = -EINVAL;
+		goto out;
+	}
+
+	len--;
+	if (inode.i_size < len)
+		len = inode.i_size;
+	if (ext2fs_is_fast_symlink(&inode))
+		memcpy(buf, (char *)inode.i_block, len);
+	else {
+		/* big/inline symlink */
+
+		err = ext2fs_file_open(fs, ino, 0, &file);
+		if (err) {
+			ret = translate_error(fs, ino, err);
+			goto out;
+		}
+
+		err = ext2fs_file_read(file, buf, len, &got);
+		if (err || got != len) {
+			ext2fs_file_close(file);
+			ret = translate_error(fs, ino, err);
+			goto out2;
+		}
+
+out2:
+		err = ext2fs_file_close(file);
+		if (ret)
+			goto out;
+		if (err) {
+			ret = translate_error(fs, ino, err);
+			goto out;
+		}
+	}
+	buf[len] = 0;
+
+	if (fs_writeable(fs)) {
+		ret = update_atime(fs, ino);
+		if (ret)
+			goto out;
+	}
+
+out:
+	pthread_mutex_unlock(&ff->bfl);
+	return ret;
+}
+
+static int op_mknod(const char *path, mode_t mode, dev_t dev)
+{
+	struct fuse_context *ctxt = fuse_get_context();
+	struct fuse2fs *ff = (struct fuse2fs *)ctxt->private_data;
+	ext2_filsys fs;
+	ext2_ino_t parent, child;
+	char *temp_path;
+	errcode_t err;
+	char *node_name, a;
+	int filetype;
+	struct ext2_inode_large inode;
+	int ret = 0;
+
+	FUSE2FS_CHECK_CONTEXT(ff);
+	fs = ff->fs;
+	dbg_printf("%s: path=%s mode=0%o dev=0x%x\n", __func__, path, mode,
+		   (unsigned int)dev);
+	temp_path = strdup(path);
+	if (!temp_path) {
+		ret = -ENOMEM;
+		goto out;
+	}
+	node_name = strrchr(temp_path, '/');
+	if (!node_name) {
+		ret = -ENOMEM;
+		goto out;
+	}
+	node_name++;
+	a = *node_name;
+	*node_name = 0;
+
+	pthread_mutex_lock(&ff->bfl);
+	if (!fs_can_allocate(ff, 2)) {
+		ret = -ENOSPC;
+		goto out2;
+	}
+
+	err = ext2fs_namei(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, temp_path,
+			   &parent);
+	if (err) {
+		ret = translate_error(fs, 0, err);
+		goto out2;
+	}
+
+	ret = check_inum_access(fs, parent, W_OK);
+	if (ret)
+		goto out2;
+
+	*node_name = a;
+
+	if (LINUX_S_ISCHR(mode))
+		filetype = EXT2_FT_CHRDEV;
+	else if (LINUX_S_ISBLK(mode))
+		filetype = EXT2_FT_BLKDEV;
+	else if (LINUX_S_ISFIFO(mode))
+		filetype = EXT2_FT_FIFO;
+	else if (LINUX_S_ISSOCK(mode))
+		filetype = EXT2_FT_SOCK;
+	else {
+		ret = -EINVAL;
+		goto out2;
+	}
+
+	err = ext2fs_new_inode(fs, parent, mode, 0, &child);
+	if (err) {
+		ret = translate_error(fs, 0, err);
+		goto out2;
+	}
+
+	dbg_printf("%s: create ino=%d/name=%s in dir=%d\n", __func__, child,
+		   node_name, parent);
+	err = ext2fs_link(fs, parent, node_name, child, filetype);
+	if (err == EXT2_ET_DIR_NO_SPACE) {
+		err = ext2fs_expand_dir(fs, parent);
+		if (err) {
+			ret = translate_error(fs, parent, err);
+			goto out2;
+		}
+
+		err = ext2fs_link(fs, parent, node_name, child,
+				     filetype);
+	}
+	if (err) {
+		ret = translate_error(fs, parent, err);
+		goto out2;
+	}
+
+	ret = update_mtime(fs, parent, NULL);
+	if (ret)
+		goto out2;
+
+	memset(&inode, 0, sizeof(inode));
+	inode.i_mode = mode;
+
+	if (dev & ~0xFFFF)
+		inode.i_block[1] = dev;
+	else
+		inode.i_block[0] = dev;
+	inode.i_links_count = 1;
+	inode.i_extra_isize = sizeof(struct ext2_inode_large) -
+		EXT2_GOOD_OLD_INODE_SIZE;
+	inode.i_uid = ctxt->uid;
+	ext2fs_set_i_uid_high(inode, ctxt->uid >> 16);
+	inode.i_gid = ctxt->gid;
+	ext2fs_set_i_gid_high(inode, ctxt->gid >> 16);
+
+	err = ext2fs_write_new_inode(fs, child, (struct ext2_inode *)&inode);
+	if (err) {
+		ret = translate_error(fs, child, err);
+		goto out2;
+	}
+
+	inode.i_generation = ff->next_generation++;
+	init_times(&inode);
+	err = ext2fs_write_inode_full(fs, child, (struct ext2_inode *)&inode,
+				      sizeof(inode));
+	if (err) {
+		ret = translate_error(fs, child, err);
+		goto out2;
+	}
+
+	ext2fs_inode_alloc_stats2(fs, child, 1, 0);
+
+out2:
+	pthread_mutex_unlock(&ff->bfl);
+out:
+	free(temp_path);
+	return ret;
+}
+
+static int op_mkdir(const char *path, mode_t mode)
+{
+	struct fuse_context *ctxt = fuse_get_context();
+	struct fuse2fs *ff = (struct fuse2fs *)ctxt->private_data;
+	ext2_filsys fs;
+	ext2_ino_t parent, child;
+	char *temp_path;
+	errcode_t err;
+	char *node_name, a;
+	struct ext2_inode_large inode;
+	char *block;
+	blk64_t blk;
+	int ret = 0;
+	mode_t parent_sgid;
+
+	FUSE2FS_CHECK_CONTEXT(ff);
+	fs = ff->fs;
+	dbg_printf("%s: path=%s mode=0%o\n", __func__, path, mode);
+	temp_path = strdup(path);
+	if (!temp_path) {
+		ret = -ENOMEM;
+		goto out;
+	}
+	node_name = strrchr(temp_path, '/');
+	if (!node_name) {
+		ret = -ENOMEM;
+		goto out;
+	}
+	node_name++;
+	a = *node_name;
+	*node_name = 0;
+
+	pthread_mutex_lock(&ff->bfl);
+	if (!fs_can_allocate(ff, 1)) {
+		ret = -ENOSPC;
+		goto out2;
+	}
+
+	err = ext2fs_namei(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, temp_path,
+			   &parent);
+	if (err) {
+		ret = translate_error(fs, 0, err);
+		goto out2;
+	}
+
+	ret = check_inum_access(fs, parent, W_OK);
+	if (ret)
+		goto out2;
+
+	/* Is the parent dir sgid? */
+	err = ext2fs_read_inode_full(fs, parent, (struct ext2_inode *)&inode,
+				     sizeof(inode));
+	if (err) {
+		ret = translate_error(fs, parent, err);
+		goto out2;
+	}
+	parent_sgid = inode.i_mode & S_ISGID;
+
+	*node_name = a;
+
+	err = ext2fs_mkdir(fs, parent, 0, node_name);
+	if (err == EXT2_ET_DIR_NO_SPACE) {
+		err = ext2fs_expand_dir(fs, parent);
+		if (err) {
+			ret = translate_error(fs, parent, err);
+			goto out2;
+		}
+
+		err = ext2fs_mkdir(fs, parent, 0, node_name);
+	}
+	if (err) {
+		ret = translate_error(fs, parent, err);
+		goto out2;
+	}
+
+	ret = update_mtime(fs, parent, NULL);
+	if (ret)
+		goto out2;
+
+	/* Still have to update the uid/gid of the dir */
+	err = ext2fs_namei(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, temp_path,
+			   &child);
+	if (err) {
+		ret = translate_error(fs, 0, err);
+		goto out2;
+	}
+	dbg_printf("%s: created ino=%d/path=%s in dir=%d\n", __func__, child,
+		   node_name, parent);
+
+	memset(&inode, 0, sizeof(inode));
+	err = ext2fs_read_inode_full(fs, child, (struct ext2_inode *)&inode,
+				     sizeof(inode));
+	if (err) {
+		ret = translate_error(fs, child, err);
+		goto out2;
+	}
+
+	inode.i_uid = ctxt->uid;
+	ext2fs_set_i_uid_high(inode, ctxt->uid >> 16);
+	inode.i_gid = ctxt->gid;
+	ext2fs_set_i_gid_high(inode, ctxt->gid >> 16);
+	inode.i_mode = LINUX_S_IFDIR | (mode & ~(S_ISUID | fs->umask)) |
+		       parent_sgid;
+	inode.i_generation = ff->next_generation++;
+
+	err = ext2fs_write_inode_full(fs, child, (struct ext2_inode *)&inode,
+				      sizeof(inode));
+	if (err) {
+		ret = translate_error(fs, child, err);
+		goto out2;
+	}
+
+	/* Rewrite the directory block checksum, having set i_generation */
+	if ((inode.i_flags & EXT4_INLINE_DATA_FL) ||
+	    !ext2fs_has_feature_metadata_csum(fs->super))
+		goto out2;
+	err = ext2fs_new_dir_block(fs, child, parent, &block);
+	if (err) {
+		ret = translate_error(fs, child, err);
+		goto out2;
+	}
+	err = ext2fs_bmap2(fs, child, (struct ext2_inode *)&inode, NULL, 0, 0,
+			   NULL, &blk);
+	if (err) {
+		ret = translate_error(fs, child, err);
+		goto out3;
+	}
+	err = ext2fs_write_dir_block4(fs, blk, block, 0, child);
+	if (err) {
+		ret = translate_error(fs, child, err);
+		goto out3;
+	}
+
+out3:
+	ext2fs_free_mem(&block);
+out2:
+	pthread_mutex_unlock(&ff->bfl);
+out:
+	free(temp_path);
+	return ret;
+}
+
+static int unlink_file_by_name(ext2_filsys fs, const char *path)
+{
+	errcode_t err;
+	ext2_ino_t dir;
+	char *filename = strdup(path);
+	char *base_name;
+	int ret;
+
+	base_name = strrchr(filename, '/');
+	if (base_name) {
+		*base_name++ = '\0';
+		err = ext2fs_namei(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, filename,
+				   &dir);
+		if (err) {
+			free(filename);
+			return translate_error(fs, 0, err);
+		}
+	} else {
+		dir = EXT2_ROOT_INO;
+		base_name = filename;
+	}
+
+	ret = check_inum_access(fs, dir, W_OK);
+	if (ret) {
+		free(filename);
+		return ret;
+	}
+
+	dbg_printf("%s: unlinking name=%s from dir=%d\n", __func__,
+		   base_name, dir);
+	err = ext2fs_unlink(fs, dir, base_name, 0, 0);
+	free(filename);
+	if (err)
+		return translate_error(fs, dir, err);
+
+	return update_mtime(fs, dir, NULL);
+}
+
+static int remove_inode(struct fuse2fs *ff, ext2_ino_t ino)
+{
+	ext2_filsys fs = ff->fs;
+	errcode_t err;
+	struct ext2_inode_large inode;
+	int ret = 0;
+
+	memset(&inode, 0, sizeof(inode));
+	err = ext2fs_read_inode_full(fs, ino, (struct ext2_inode *)&inode,
+				     sizeof(inode));
+	if (err) {
+		ret = translate_error(fs, ino, err);
+		goto out;
+	}
+	dbg_printf("%s: put ino=%d links=%d\n", __func__, ino,
+		   inode.i_links_count);
+
+	switch (inode.i_links_count) {
+	case 0:
+		return 0; /* XXX: already done? */
+	case 1:
+		inode.i_links_count--;
+		inode.i_dtime = fs->now ? fs->now : time(0);
+		break;
+	default:
+		inode.i_links_count--;
+	}
+
+	ret = update_ctime(fs, ino, &inode);
+	if (ret)
+		goto out;
+
+	if (inode.i_links_count)
+		goto write_out;
+
+	/* Nobody holds this file; free its blocks! */
+	err = ext2fs_free_ext_attr(fs, ino, &inode);
+	if (err)
+		goto write_out;
+
+	if (ext2fs_inode_has_valid_blocks2(fs, (struct ext2_inode *)&inode)) {
+		err = ext2fs_punch(fs, ino, (struct ext2_inode *)&inode, NULL,
+				   0, ~0ULL);
+		if (err) {
+			ret = translate_error(fs, ino, err);
+			goto write_out;
+		}
+	}
+
+	ext2fs_inode_alloc_stats2(fs, ino, -1,
+				  LINUX_S_ISDIR(inode.i_mode));
+
+write_out:
+	err = ext2fs_write_inode_full(fs, ino, (struct ext2_inode *)&inode,
+				      sizeof(inode));
+	if (err) {
+		ret = translate_error(fs, ino, err);
+		goto out;
+	}
+out:
+	return ret;
+}
+
+static int __op_unlink(struct fuse2fs *ff, const char *path)
+{
+	ext2_filsys fs = ff->fs;
+	ext2_ino_t ino;
+	errcode_t err;
+	int ret = 0;
+
+	err = ext2fs_namei(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, path, &ino);
+	if (err) {
+		ret = translate_error(fs, 0, err);
+		goto out;
+	}
+
+	ret = unlink_file_by_name(fs, path);
+	if (ret)
+		goto out;
+
+	ret = remove_inode(ff, ino);
+	if (ret)
+		goto out;
+out:
+	return ret;
+}
+
+static int op_unlink(const char *path)
+{
+	struct fuse_context *ctxt = fuse_get_context();
+	struct fuse2fs *ff = (struct fuse2fs *)ctxt->private_data;
+	int ret;
+
+	FUSE2FS_CHECK_CONTEXT(ff);
+	pthread_mutex_lock(&ff->bfl);
+	ret = __op_unlink(ff, path);
+	pthread_mutex_unlock(&ff->bfl);
+	return ret;
+}
+
+struct rd_struct {
+	ext2_ino_t	parent;
+	int		empty;
+};
+
+static int rmdir_proc(ext2_ino_t dir EXT2FS_ATTR((unused)),
+		      int	entry EXT2FS_ATTR((unused)),
+		      struct ext2_dir_entry *dirent,
+		      int	offset EXT2FS_ATTR((unused)),
+		      int	blocksize EXT2FS_ATTR((unused)),
+		      char	*buf EXT2FS_ATTR((unused)),
+		      void	*private)
+{
+	struct rd_struct *rds = (struct rd_struct *) private;
+
+	if (dirent->inode == 0)
+		return 0;
+	if (((dirent->name_len & 0xFF) == 1) && (dirent->name[0] == '.'))
+		return 0;
+	if (((dirent->name_len & 0xFF) == 2) && (dirent->name[0] == '.') &&
+	    (dirent->name[1] == '.')) {
+		rds->parent = dirent->inode;
+		return 0;
+	}
+	rds->empty = 0;
+	return 0;
+}
+
+static int __op_rmdir(struct fuse2fs *ff, const char *path)
+{
+	ext2_filsys fs = ff->fs;
+	ext2_ino_t child;
+	errcode_t err;
+	struct ext2_inode_large inode;
+	struct rd_struct rds;
+	int ret = 0;
+
+	err = ext2fs_namei(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, path, &child);
+	if (err) {
+		ret = translate_error(fs, 0, err);
+		goto out;
+	}
+	dbg_printf("%s: rmdir path=%s ino=%d\n", __func__, path, child);
+
+	rds.parent = 0;
+	rds.empty = 1;
+
+	err = ext2fs_dir_iterate2(fs, child, 0, 0, rmdir_proc, &rds);
+	if (err) {
+		ret = translate_error(fs, child, err);
+		goto out;
+	}
+
+	if (rds.empty == 0) {
+		ret = -ENOTEMPTY;
+		goto out;
+	}
+
+	ret = unlink_file_by_name(fs, path);
+	if (ret)
+		goto out;
+	/* Directories have to be "removed" twice. */
+	ret = remove_inode(ff, child);
+	if (ret)
+		goto out;
+	ret = remove_inode(ff, child);
+	if (ret)
+		goto out;
+
+	if (rds.parent) {
+		dbg_printf("%s: decr dir=%d link count\n", __func__,
+			   rds.parent);
+		err = ext2fs_read_inode_full(fs, rds.parent,
+					     (struct ext2_inode *)&inode,
+					     sizeof(inode));
+		if (err) {
+			ret = translate_error(fs, rds.parent, err);
+			goto out;
+		}
+		if (inode.i_links_count > 1)
+			inode.i_links_count--;
+		ret = update_mtime(fs, rds.parent, &inode);
+		if (ret)
+			goto out;
+		err = ext2fs_write_inode_full(fs, rds.parent,
+					      (struct ext2_inode *)&inode,
+					      sizeof(inode));
+		if (err) {
+			ret = translate_error(fs, rds.parent, err);
+			goto out;
+		}
+	}
+
+out:
+	return ret;
+}
+
+static int op_rmdir(const char *path)
+{
+	struct fuse_context *ctxt = fuse_get_context();
+	struct fuse2fs *ff = (struct fuse2fs *)ctxt->private_data;
+	int ret;
+
+	FUSE2FS_CHECK_CONTEXT(ff);
+	pthread_mutex_lock(&ff->bfl);
+	ret = __op_rmdir(ff, path);
+	pthread_mutex_unlock(&ff->bfl);
+	return ret;
+}
+
+static int op_symlink(const char *src, const char *dest)
+{
+	struct fuse_context *ctxt = fuse_get_context();
+	struct fuse2fs *ff = (struct fuse2fs *)ctxt->private_data;
+	ext2_filsys fs;
+	ext2_ino_t parent, child;
+	char *temp_path;
+	errcode_t err;
+	char *node_name, a;
+	struct ext2_inode_large inode;
+	int ret = 0;
+
+	FUSE2FS_CHECK_CONTEXT(ff);
+	fs = ff->fs;
+	dbg_printf("%s: symlink %s to %s\n", __func__, src, dest);
+	temp_path = strdup(dest);
+	if (!temp_path) {
+		ret = -ENOMEM;
+		goto out;
+	}
+	node_name = strrchr(temp_path, '/');
+	if (!node_name) {
+		ret = -ENOMEM;
+		goto out;
+	}
+	node_name++;
+	a = *node_name;
+	*node_name = 0;
+
+	pthread_mutex_lock(&ff->bfl);
+	err = ext2fs_namei(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, temp_path,
+			   &parent);
+	*node_name = a;
+	if (err) {
+		ret = translate_error(fs, 0, err);
+		goto out2;
+	}
+
+	ret = check_inum_access(fs, parent, W_OK);
+	if (ret)
+		goto out2;
+
+
+	/* Create symlink */
+	err = ext2fs_symlink(fs, parent, 0, node_name, src);
+	if (err == EXT2_ET_DIR_NO_SPACE) {
+		err = ext2fs_expand_dir(fs, parent);
+		if (err) {
+			ret = translate_error(fs, parent, err);
+			goto out2;
+		}
+
+		err = ext2fs_symlink(fs, parent, 0, node_name, src);
+	}
+	if (err) {
+		ret = translate_error(fs, parent, err);
+		goto out2;
+	}
+
+	/* Update parent dir's mtime */
+	ret = update_mtime(fs, parent, NULL);
+	if (ret)
+		goto out2;
+
+	/* Still have to update the uid/gid of the symlink */
+	err = ext2fs_namei(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, temp_path,
+			   &child);
+	if (err) {
+		ret = translate_error(fs, 0, err);
+		goto out2;
+	}
+	dbg_printf("%s: symlinking ino=%d/name=%s to dir=%d\n", __func__,
+		   child, node_name, parent);
+
+	memset(&inode, 0, sizeof(inode));
+	err = ext2fs_read_inode_full(fs, child, (struct ext2_inode *)&inode,
+				     sizeof(inode));
+	if (err) {
+		ret = translate_error(fs, child, err);
+		goto out2;
+	}
+
+	inode.i_uid = ctxt->uid;
+	ext2fs_set_i_uid_high(inode, ctxt->uid >> 16);
+	inode.i_gid = ctxt->gid;
+	ext2fs_set_i_gid_high(inode, ctxt->gid >> 16);
+	inode.i_generation = ff->next_generation++;
+
+	err = ext2fs_write_inode_full(fs, child, (struct ext2_inode *)&inode,
+				      sizeof(inode));
+	if (err) {
+		ret = translate_error(fs, child, err);
+		goto out2;
+	}
+out2:
+	pthread_mutex_unlock(&ff->bfl);
+out:
+	free(temp_path);
+	return ret;
+}
+
+struct update_dotdot {
+	ext2_ino_t new_dotdot;
+};
+
+static int update_dotdot_helper(ext2_ino_t dir EXT2FS_ATTR((unused)),
+				int entry EXT2FS_ATTR((unused)),
+				struct ext2_dir_entry *dirent,
+				int offset EXT2FS_ATTR((unused)),
+				int blocksize EXT2FS_ATTR((unused)),
+				char *buf EXT2FS_ATTR((unused)),
+				void *priv_data)
+{
+	struct update_dotdot *ud = priv_data;
+
+	if (ext2fs_dirent_name_len(dirent) == 2 &&
+	    dirent->name[0] == '.' && dirent->name[1] == '.') {
+		dirent->inode = ud->new_dotdot;
+		return DIRENT_CHANGED | DIRENT_ABORT;
+	}
+
+	return 0;
+}
+
+static int op_rename(const char *from, const char *to)
+{
+	struct fuse_context *ctxt = fuse_get_context();
+	struct fuse2fs *ff = (struct fuse2fs *)ctxt->private_data;
+	ext2_filsys fs;
+	errcode_t err;
+	ext2_ino_t from_ino, to_ino, to_dir_ino, from_dir_ino;
+	char *temp_to = NULL, *temp_from = NULL;
+	char *cp, a;
+	struct ext2_inode inode;
+	struct update_dotdot ud;
+	int ret = 0;
+
+	FUSE2FS_CHECK_CONTEXT(ff);
+	fs = ff->fs;
+	dbg_printf("%s: renaming %s to %s\n", __func__, from, to);
+	pthread_mutex_lock(&ff->bfl);
+	if (!fs_can_allocate(ff, 5)) {
+		ret = -ENOSPC;
+		goto out;
+	}
+
+	err = ext2fs_namei(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, from, &from_ino);
+	if (err || from_ino == 0) {
+		ret = translate_error(fs, 0, err);
+		goto out;
+	}
+
+	err = ext2fs_namei(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, to, &to_ino);
+	if (err && err != EXT2_ET_FILE_NOT_FOUND) {
+		ret = translate_error(fs, 0, err);
+		goto out;
+	}
+
+	if (err == EXT2_ET_FILE_NOT_FOUND)
+		to_ino = 0;
+
+	/* Already the same file? */
+	if (to_ino != 0 && to_ino == from_ino) {
+		ret = 0;
+		goto out;
+	}
+
+	temp_to = strdup(to);
+	if (!temp_to) {
+		ret = -ENOMEM;
+		goto out;
+	}
+
+	temp_from = strdup(from);
+	if (!temp_from) {
+		ret = -ENOMEM;
+		goto out2;
+	}
+
+	/* Find parent dir of the source and check write access */
+	cp = strrchr(temp_from, '/');
+	if (!cp) {
+		ret = -EINVAL;
+		goto out2;
+	}
+
+	a = *(cp + 1);
+	*(cp + 1) = 0;
+	err = ext2fs_namei(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, temp_from,
+			   &from_dir_ino);
+	*(cp + 1) = a;
+	if (err) {
+		ret = translate_error(fs, 0, err);
+		goto out2;
+	}
+	if (from_dir_ino == 0) {
+		ret = -ENOENT;
+		goto out2;
+	}
+
+	ret = check_inum_access(fs, from_dir_ino, W_OK);
+	if (ret)
+		goto out2;
+
+	/* Find parent dir of the destination and check write access */
+	cp = strrchr(temp_to, '/');
+	if (!cp) {
+		ret = -EINVAL;
+		goto out2;
+	}
+
+	a = *(cp + 1);
+	*(cp + 1) = 0;
+	err = ext2fs_namei(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, temp_to,
+			   &to_dir_ino);
+	*(cp + 1) = a;
+	if (err) {
+		ret = translate_error(fs, 0, err);
+		goto out2;
+	}
+	if (to_dir_ino == 0) {
+		ret = -ENOENT;
+		goto out2;
+	}
+
+	ret = check_inum_access(fs, to_dir_ino, W_OK);
+	if (ret)
+		goto out2;
+
+	/* If the target exists, unlink it first */
+	if (to_ino != 0) {
+		err = ext2fs_read_inode(fs, to_ino, &inode);
+		if (err) {
+			ret = translate_error(fs, to_ino, err);
+			goto out2;
+		}
+
+		dbg_printf("%s: unlinking %s ino=%d\n", __func__,
+			   LINUX_S_ISDIR(inode.i_mode) ? "dir" : "file",
+			   to_ino);
+		if (LINUX_S_ISDIR(inode.i_mode))
+			ret = __op_rmdir(ff, to);
+		else
+			ret = __op_unlink(ff, to);
+		if (ret)
+			goto out2;
+	}
+
+	/* Get ready to do the move */
+	err = ext2fs_read_inode(fs, from_ino, &inode);
+	if (err) {
+		ret = translate_error(fs, from_ino, err);
+		goto out2;
+	}
+
+	/* Link in the new file */
+	dbg_printf("%s: linking ino=%d/path=%s to dir=%d\n", __func__,
+		   from_ino, cp + 1, to_dir_ino);
+	err = ext2fs_link(fs, to_dir_ino, cp + 1, from_ino,
+			  ext2_file_type(inode.i_mode));
+	if (err == EXT2_ET_DIR_NO_SPACE) {
+		err = ext2fs_expand_dir(fs, to_dir_ino);
+		if (err) {
+			ret = translate_error(fs, to_dir_ino, err);
+			goto out2;
+		}
+
+		err = ext2fs_link(fs, to_dir_ino, cp + 1, from_ino,
+				     ext2_file_type(inode.i_mode));
+	}
+	if (err) {
+		ret = translate_error(fs, to_dir_ino, err);
+		goto out2;
+	}
+
+	/* Update '..' pointer if dir */
+	err = ext2fs_read_inode(fs, from_ino, &inode);
+	if (err) {
+		ret = translate_error(fs, from_ino, err);
+		goto out2;
+	}
+
+	if (LINUX_S_ISDIR(inode.i_mode)) {
+		ud.new_dotdot = to_dir_ino;
+		dbg_printf("%s: updating .. entry for dir=%d\n", __func__,
+			   to_dir_ino);
+		err = ext2fs_dir_iterate2(fs, from_ino, 0, NULL,
+					  update_dotdot_helper, &ud);
+		if (err) {
+			ret = translate_error(fs, from_ino, err);
+			goto out2;
+		}
+
+		/* Decrease from_dir_ino's links_count */
+		dbg_printf("%s: moving linkcount from dir=%d to dir=%d\n",
+			   __func__, from_dir_ino, to_dir_ino);
+		err = ext2fs_read_inode(fs, from_dir_ino, &inode);
+		if (err) {
+			ret = translate_error(fs, from_dir_ino, err);
+			goto out2;
+		}
+		inode.i_links_count--;
+		err = ext2fs_write_inode(fs, from_dir_ino, &inode);
+		if (err) {
+			ret = translate_error(fs, from_dir_ino, err);
+			goto out2;
+		}
+
+		/* Increase to_dir_ino's links_count */
+		err = ext2fs_read_inode(fs, to_dir_ino, &inode);
+		if (err) {
+			ret = translate_error(fs, to_dir_ino, err);
+			goto out2;
+		}
+		inode.i_links_count++;
+		err = ext2fs_write_inode(fs, to_dir_ino, &inode);
+		if (err) {
+			ret = translate_error(fs, to_dir_ino, err);
+			goto out2;
+		}
+	}
+
+	/* Update timestamps */
+	ret = update_ctime(fs, from_ino, NULL);
+	if (ret)
+		goto out2;
+
+	ret = update_mtime(fs, to_dir_ino, NULL);
+	if (ret)
+		goto out2;
+
+	/* Remove the old file */
+	ret = unlink_file_by_name(fs, from);
+	if (ret)
+		goto out2;
+
+	/* Flush the whole mess out */
+	err = ext2fs_flush2(fs, 0);
+	if (err)
+		ret = translate_error(fs, 0, err);
+
+out2:
+	free(temp_from);
+	free(temp_to);
+out:
+	pthread_mutex_unlock(&ff->bfl);
+	return ret;
+}
+
+static int op_link(const char *src, const char *dest)
+{
+	struct fuse_context *ctxt = fuse_get_context();
+	struct fuse2fs *ff = (struct fuse2fs *)ctxt->private_data;
+	ext2_filsys fs;
+	char *temp_path;
+	errcode_t err;
+	char *node_name, a;
+	ext2_ino_t parent, ino;
+	struct ext2_inode_large inode;
+	int ret = 0;
+
+	FUSE2FS_CHECK_CONTEXT(ff);
+	fs = ff->fs;
+	dbg_printf("%s: src=%s dest=%s\n", __func__, src, dest);
+	temp_path = strdup(dest);
+	if (!temp_path) {
+		ret = -ENOMEM;
+		goto out;
+	}
+	node_name = strrchr(temp_path, '/');
+	if (!node_name) {
+		ret = -ENOMEM;
+		goto out;
+	}
+	node_name++;
+	a = *node_name;
+	*node_name = 0;
+
+	pthread_mutex_lock(&ff->bfl);
+	if (!fs_can_allocate(ff, 2)) {
+		ret = -ENOSPC;
+		goto out2;
+	}
+
+	err = ext2fs_namei(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, temp_path,
+			   &parent);
+	*node_name = a;
+	if (err) {
+		err = -ENOENT;
+		goto out2;
+	}
+
+	ret = check_inum_access(fs, parent, W_OK);
+	if (ret)
+		goto out2;
+
+
+	err = ext2fs_namei(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, src, &ino);
+	if (err || ino == 0) {
+		ret = translate_error(fs, 0, err);
+		goto out2;
+	}
+
+	memset(&inode, 0, sizeof(inode));
+	err = ext2fs_read_inode_full(fs, ino, (struct ext2_inode *)&inode,
+				     sizeof(inode));
+	if (err) {
+		ret = translate_error(fs, ino, err);
+		goto out2;
+	}
+
+	inode.i_links_count++;
+	ret = update_ctime(fs, ino, &inode);
+	if (ret)
+		goto out2;
+
+	err = ext2fs_write_inode_full(fs, ino, (struct ext2_inode *)&inode,
+				      sizeof(inode));
+	if (err) {
+		ret = translate_error(fs, ino, err);
+		goto out2;
+	}
+
+	dbg_printf("%s: linking ino=%d/name=%s to dir=%d\n", __func__, ino,
+		   node_name, parent);
+	err = ext2fs_link(fs, parent, node_name, ino,
+			  ext2_file_type(inode.i_mode));
+	if (err == EXT2_ET_DIR_NO_SPACE) {
+		err = ext2fs_expand_dir(fs, parent);
+		if (err) {
+			ret = translate_error(fs, parent, err);
+			goto out2;
+		}
+
+		err = ext2fs_link(fs, parent, node_name, ino,
+				     ext2_file_type(inode.i_mode));
+	}
+	if (err) {
+		ret = translate_error(fs, parent, err);
+		goto out2;
+	}
+
+	ret = update_mtime(fs, parent, NULL);
+	if (ret)
+		goto out2;
+
+out2:
+	pthread_mutex_unlock(&ff->bfl);
+out:
+	free(temp_path);
+	return ret;
+}
+
+static int op_chmod(const char *path, mode_t mode)
+{
+	struct fuse_context *ctxt = fuse_get_context();
+	struct fuse2fs *ff = (struct fuse2fs *)ctxt->private_data;
+	ext2_filsys fs;
+	errcode_t err;
+	ext2_ino_t ino;
+	struct ext2_inode_large inode;
+	int ret = 0;
+
+	FUSE2FS_CHECK_CONTEXT(ff);
+	fs = ff->fs;
+	pthread_mutex_lock(&ff->bfl);
+	err = ext2fs_namei(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, path, &ino);
+	if (err) {
+		ret = translate_error(fs, 0, err);
+		goto out;
+	}
+	dbg_printf("%s: path=%s mode=0%o ino=%d\n", __func__, path, mode, ino);
+
+	memset(&inode, 0, sizeof(inode));
+	err = ext2fs_read_inode_full(fs, ino, (struct ext2_inode *)&inode,
+				     sizeof(inode));
+	if (err) {
+		ret = translate_error(fs, ino, err);
+		goto out;
+	}
+
+	if (!ff->fakeroot && ctxt->uid != 0 && ctxt->uid != inode_uid(inode)) {
+		ret = -EPERM;
+		goto out;
+	}
+
+	/*
+	 * XXX: We should really check that the inode gid is not in /any/
+	 * of the user's groups, but FUSE only tells us about the primary
+	 * group.
+	 */
+	if (!ff->fakeroot && ctxt->uid != 0 && ctxt->gid != inode_gid(inode))
+		mode &= ~S_ISGID;
+
+	inode.i_mode &= ~0xFFF;
+	inode.i_mode |= mode & 0xFFF;
+	ret = update_ctime(fs, ino, &inode);
+	if (ret)
+		goto out;
+
+	err = ext2fs_write_inode_full(fs, ino, (struct ext2_inode *)&inode,
+				      sizeof(inode));
+	if (err) {
+		ret = translate_error(fs, ino, err);
+		goto out;
+	}
+
+out:
+	pthread_mutex_unlock(&ff->bfl);
+	return ret;
+}
+
+static int op_chown(const char *path, uid_t owner, gid_t group)
+{
+	struct fuse_context *ctxt = fuse_get_context();
+	struct fuse2fs *ff = (struct fuse2fs *)ctxt->private_data;
+	ext2_filsys fs;
+	errcode_t err;
+	ext2_ino_t ino;
+	struct ext2_inode_large inode;
+	int ret = 0;
+
+	FUSE2FS_CHECK_CONTEXT(ff);
+	fs = ff->fs;
+	pthread_mutex_lock(&ff->bfl);
+	err = ext2fs_namei(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, path, &ino);
+	if (err) {
+		ret = translate_error(fs, 0, err);
+		goto out;
+	}
+	dbg_printf("%s: path=%s owner=%d group=%d ino=%d\n", __func__,
+		   path, owner, group, ino);
+
+	memset(&inode, 0, sizeof(inode));
+	err = ext2fs_read_inode_full(fs, ino, (struct ext2_inode *)&inode,
+				     sizeof(inode));
+	if (err) {
+		ret = translate_error(fs, ino, err);
+		goto out;
+	}
+
+	/* FUSE seems to feed us ~0 to mean "don't change" */
+	if (owner != (uid_t) ~0) {
+		/* Only root gets to change UID. */
+		if (!ff->fakeroot && ctxt->uid != 0 &&
+		    !(inode_uid(inode) == ctxt->uid && owner == ctxt->uid)) {
+			ret = -EPERM;
+			goto out;
+		}
+		inode.i_uid = owner;
+		ext2fs_set_i_uid_high(inode, owner >> 16);
+	}
+
+	if (group != (gid_t) ~0) {
+		/* Only root or the owner get to change GID. */
+		if (!ff->fakeroot && ctxt->uid != 0 &&
+		    inode_uid(inode) != ctxt->uid) {
+			ret = -EPERM;
+			goto out;
+		}
+
+		/* XXX: We /should/ check group membership but FUSE */
+		inode.i_gid = group;
+		ext2fs_set_i_gid_high(inode, group >> 16);
+	}
+
+	ret = update_ctime(fs, ino, &inode);
+	if (ret)
+		goto out;
+
+	err = ext2fs_write_inode_full(fs, ino, (struct ext2_inode *)&inode,
+				      sizeof(inode));
+	if (err) {
+		ret = translate_error(fs, ino, err);
+		goto out;
+	}
+
+out:
+	pthread_mutex_unlock(&ff->bfl);
+	return ret;
+}
+
+static int op_truncate(const char *path, off_t len)
+{
+	struct fuse_context *ctxt = fuse_get_context();
+	struct fuse2fs *ff = (struct fuse2fs *)ctxt->private_data;
+	ext2_filsys fs;
+	errcode_t err;
+	ext2_ino_t ino;
+	ext2_file_t file;
+	int ret = 0;
+
+	FUSE2FS_CHECK_CONTEXT(ff);
+	fs = ff->fs;
+	pthread_mutex_lock(&ff->bfl);
+	err = ext2fs_namei(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, path, &ino);
+	if (err || ino == 0) {
+		ret = translate_error(fs, 0, err);
+		goto out;
+	}
+	dbg_printf("%s: ino=%d len=%jd\n", __func__, ino, len);
+
+	ret = check_inum_access(fs, ino, W_OK);
+	if (ret)
+		goto out;
+
+	err = ext2fs_file_open(fs, ino, EXT2_FILE_WRITE, &file);
+	if (err) {
+		ret = translate_error(fs, ino, err);
+		goto out;
+	}
+
+	err = ext2fs_file_set_size2(file, len);
+	if (err) {
+		ret = translate_error(fs, ino, err);
+		goto out2;
+	}
+
+out2:
+	err = ext2fs_file_close(file);
+	if (ret)
+		goto out;
+	if (err) {
+		ret = translate_error(fs, ino, err);
+		goto out;
+	}
+
+	ret = update_mtime(fs, ino, NULL);
+
+out:
+	pthread_mutex_unlock(&ff->bfl);
+	return err;
+}
+
+#ifdef __linux__
+static void detect_linux_executable_open(int kernel_flags, int *access_check,
+				  int *e2fs_open_flags)
+{
+	/*
+	 * On Linux, execve will bleed __FMODE_EXEC into the file mode flags,
+	 * and FUSE is more than happy to let that slip through.
+	 */
+	if (kernel_flags & 0x20) {
+		*access_check = X_OK;
+		*e2fs_open_flags &= ~EXT2_FILE_WRITE;
+	}
+}
+#else
+static void detect_linux_executable_open(int kernel_flags, int *access_check,
+				  int *e2fs_open_flags)
+{
+	/* empty */
+}
+#endif /* __linux__ */
+
+static int __op_open(struct fuse2fs *ff, const char *path,
+		     struct fuse_file_info *fp)
+{
+	ext2_filsys fs = ff->fs;
+	errcode_t err;
+	struct fuse2fs_file_handle *file;
+	int check = 0, ret = 0;
+
+	dbg_printf("%s: path=%s\n", __func__, path);
+	err = ext2fs_get_mem(sizeof(*file), &file);
+	if (err)
+		return translate_error(fs, 0, err);
+	file->magic = FUSE2FS_FILE_MAGIC;
+
+	file->open_flags = 0;
+	switch (fp->flags & O_ACCMODE) {
+	case O_RDONLY:
+		check = R_OK;
+		break;
+	case O_WRONLY:
+		check = W_OK;
+		file->open_flags |= EXT2_FILE_WRITE;
+		break;
+	case O_RDWR:
+		check = R_OK | W_OK;
+		file->open_flags |= EXT2_FILE_WRITE;
+		break;
+	}
+
+	detect_linux_executable_open(fp->flags, &check, &file->open_flags);
+
+	if (fp->flags & O_CREAT)
+		file->open_flags |= EXT2_FILE_CREATE;
+
+	err = ext2fs_namei(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, path, &file->ino);
+	if (err || file->ino == 0) {
+		ret = translate_error(fs, 0, err);
+		goto out;
+	}
+	dbg_printf("%s: ino=%d\n", __func__, file->ino);
+
+	ret = check_inum_access(fs, file->ino, check);
+	if (ret) {
+		/*
+		 * In a regular (Linux) fs driver, the kernel will open
+		 * binaries for reading if the user has --x privileges (i.e.
+		 * execute without read).  Since the kernel doesn't have any
+		 * way to tell us if it's opening a file via execve, we'll
+		 * just assume that allowing access is ok if asking for ro mode
+		 * fails but asking for x mode succeeds.  Of course we can
+		 * also employ undocumented hacks (see above).
+		 */
+		if (check == R_OK) {
+			ret = check_inum_access(fs, file->ino, X_OK);
+			if (ret)
+				goto out;
+		} else
+			goto out;
+	}
+	fp->fh = (uintptr_t)file;
+
+out:
+	if (ret)
+		ext2fs_free_mem(&file);
+	return ret;
+}
+
+static int op_open(const char *path, struct fuse_file_info *fp)
+{
+	struct fuse_context *ctxt = fuse_get_context();
+	struct fuse2fs *ff = (struct fuse2fs *)ctxt->private_data;
+	int ret;
+
+	FUSE2FS_CHECK_CONTEXT(ff);
+	pthread_mutex_lock(&ff->bfl);
+	ret = __op_open(ff, path, fp);
+	pthread_mutex_unlock(&ff->bfl);
+	return ret;
+}
+
+static int op_read(const char *path EXT2FS_ATTR((unused)), char *buf,
+		   size_t len, off_t offset,
+		   struct fuse_file_info *fp)
+{
+	struct fuse_context *ctxt = fuse_get_context();
+	struct fuse2fs *ff = (struct fuse2fs *)ctxt->private_data;
+	struct fuse2fs_file_handle *fh =
+		(struct fuse2fs_file_handle *)(uintptr_t)fp->fh;
+	ext2_filsys fs;
+	ext2_file_t efp;
+	errcode_t err;
+	unsigned int got = 0;
+	int ret = 0;
+
+	FUSE2FS_CHECK_CONTEXT(ff);
+	fs = ff->fs;
+	FUSE2FS_CHECK_MAGIC(fs, fh, FUSE2FS_FILE_MAGIC);
+	dbg_printf("%s: ino=%d off=%jd len=%jd\n", __func__, fh->ino, offset,
+		   len);
+	pthread_mutex_lock(&ff->bfl);
+	err = ext2fs_file_open(fs, fh->ino, fh->open_flags, &efp);
+	if (err) {
+		ret = translate_error(fs, fh->ino, err);
+		goto out;
+	}
+
+	err = ext2fs_file_llseek(efp, offset, SEEK_SET, NULL);
+	if (err) {
+		ret = translate_error(fs, fh->ino, err);
+		goto out2;
+	}
+
+	err = ext2fs_file_read(efp, buf, len, &got);
+	if (err) {
+		ret = translate_error(fs, fh->ino, err);
+		goto out2;
+	}
+
+out2:
+	err = ext2fs_file_close(efp);
+	if (ret)
+		goto out;
+	if (err) {
+		ret = translate_error(fs, fh->ino, err);
+		goto out;
+	}
+
+	if (fs_writeable(fs)) {
+		ret = update_atime(fs, fh->ino);
+		if (ret)
+			goto out;
+	}
+out:
+	pthread_mutex_unlock(&ff->bfl);
+	return got ? (int) got : ret;
+}
+
+static int op_write(const char *path EXT2FS_ATTR((unused)),
+		    const char *buf, size_t len, off_t offset,
+		    struct fuse_file_info *fp)
+{
+	struct fuse_context *ctxt = fuse_get_context();
+	struct fuse2fs *ff = (struct fuse2fs *)ctxt->private_data;
+	struct fuse2fs_file_handle *fh =
+		(struct fuse2fs_file_handle *)(uintptr_t)fp->fh;
+	ext2_filsys fs;
+	ext2_file_t efp;
+	errcode_t err;
+	unsigned int got = 0;
+	int ret = 0;
+
+	FUSE2FS_CHECK_CONTEXT(ff);
+	fs = ff->fs;
+	FUSE2FS_CHECK_MAGIC(fs, fh, FUSE2FS_FILE_MAGIC);
+	dbg_printf("%s: ino=%d off=%jd len=%jd\n", __func__, fh->ino, offset,
+		   len);
+	pthread_mutex_lock(&ff->bfl);
+	if (!fs_writeable(fs)) {
+		ret = -EROFS;
+		goto out;
+	}
+
+	if (!fs_can_allocate(ff, len / fs->blocksize)) {
+		ret = -ENOSPC;
+		goto out;
+	}
+
+	err = ext2fs_file_open(fs, fh->ino, fh->open_flags, &efp);
+	if (err) {
+		ret = translate_error(fs, fh->ino, err);
+		goto out;
+	}
+
+	err = ext2fs_file_llseek(efp, offset, SEEK_SET, NULL);
+	if (err) {
+		ret = translate_error(fs, fh->ino, err);
+		goto out2;
+	}
+
+	err = ext2fs_file_write(efp, buf, len, &got);
+	if (err) {
+		ret = translate_error(fs, fh->ino, err);
+		goto out2;
+	}
+
+	err = ext2fs_file_flush(efp);
+	if (err) {
+		got = 0;
+		ret = translate_error(fs, fh->ino, err);
+		goto out2;
+	}
+
+out2:
+	err = ext2fs_file_close(efp);
+	if (ret)
+		goto out;
+	if (err) {
+		ret = translate_error(fs, fh->ino, err);
+		goto out;
+	}
+
+	ret = update_mtime(fs, fh->ino, NULL);
+	if (ret)
+		goto out;
+
+out:
+	pthread_mutex_unlock(&ff->bfl);
+	return got ? (int) got : ret;
+}
+
+static int op_release(const char *path EXT2FS_ATTR((unused)),
+		      struct fuse_file_info *fp)
+{
+	struct fuse_context *ctxt = fuse_get_context();
+	struct fuse2fs *ff = (struct fuse2fs *)ctxt->private_data;
+	struct fuse2fs_file_handle *fh =
+		(struct fuse2fs_file_handle *)(uintptr_t)fp->fh;
+	ext2_filsys fs;
+	errcode_t err;
+	int ret = 0;
+
+	FUSE2FS_CHECK_CONTEXT(ff);
+	fs = ff->fs;
+	FUSE2FS_CHECK_MAGIC(fs, fh, FUSE2FS_FILE_MAGIC);
+	dbg_printf("%s: ino=%d\n", __func__, fh->ino);
+	pthread_mutex_lock(&ff->bfl);
+	if (fs_writeable(fs) && fh->open_flags & EXT2_FILE_WRITE) {
+		err = ext2fs_flush2(fs, EXT2_FLAG_FLUSH_NO_SYNC);
+		if (err)
+			ret = translate_error(fs, fh->ino, err);
+	}
+	fp->fh = 0;
+	pthread_mutex_unlock(&ff->bfl);
+
+	ext2fs_free_mem(&fh);
+
+	return ret;
+}
+
+static int op_fsync(const char *path EXT2FS_ATTR((unused)),
+		    int datasync EXT2FS_ATTR((unused)),
+		    struct fuse_file_info *fp)
+{
+	struct fuse_context *ctxt = fuse_get_context();
+	struct fuse2fs *ff = (struct fuse2fs *)ctxt->private_data;
+	struct fuse2fs_file_handle *fh =
+		(struct fuse2fs_file_handle *)(uintptr_t)fp->fh;
+	ext2_filsys fs;
+	errcode_t err;
+	int ret = 0;
+
+	FUSE2FS_CHECK_CONTEXT(ff);
+	fs = ff->fs;
+	FUSE2FS_CHECK_MAGIC(fs, fh, FUSE2FS_FILE_MAGIC);
+	dbg_printf("%s: ino=%d\n", __func__, fh->ino);
+	/* For now, flush everything, even if it's slow */
+	pthread_mutex_lock(&ff->bfl);
+	if (fs_writeable(fs) && fh->open_flags & EXT2_FILE_WRITE) {
+		err = ext2fs_flush2(fs, 0);
+		if (err)
+			ret = translate_error(fs, fh->ino, err);
+	}
+	pthread_mutex_unlock(&ff->bfl);
+
+	return ret;
+}
+
+static int op_statfs(const char *path EXT2FS_ATTR((unused)),
+		     struct statvfs *buf)
+{
+	struct fuse_context *ctxt = fuse_get_context();
+	struct fuse2fs *ff = (struct fuse2fs *)ctxt->private_data;
+	ext2_filsys fs;
+	uint64_t fsid, *f;
+	blk64_t overhead, reserved, free;
+
+	FUSE2FS_CHECK_CONTEXT(ff);
+	fs = ff->fs;
+	dbg_printf("%s: path=%s\n", __func__, path);
+	buf->f_bsize = fs->blocksize;
+	buf->f_frsize = 0;
+
+	if (ff->minixdf)
+		overhead = 0;
+	else
+		overhead = fs->desc_blocks +
+			   (blk64_t)fs->group_desc_count *
+			   (fs->inode_blocks_per_group + 2);
+	reserved = ext2fs_r_blocks_count(fs->super);
+	if (!reserved)
+		reserved = ext2fs_blocks_count(fs->super) / 10;
+	free = ext2fs_free_blocks_count(fs->super);
+
+	buf->f_blocks = ext2fs_blocks_count(fs->super) - overhead;
+	buf->f_bfree = free;
+	if (free < reserved)
+		buf->f_bavail = 0;
+	else
+		buf->f_bavail = free - reserved;
+	buf->f_files = fs->super->s_inodes_count;
+	buf->f_ffree = fs->super->s_free_inodes_count;
+	buf->f_favail = fs->super->s_free_inodes_count;
+	f = (uint64_t *)fs->super->s_uuid;
+	fsid = *f;
+	f++;
+	fsid ^= *f;
+	buf->f_fsid = fsid;
+	buf->f_flag = 0;
+	if (fs->flags & EXT2_FLAG_RW)
+		buf->f_flag |= ST_RDONLY;
+	buf->f_namemax = EXT2_NAME_LEN;
+
+	return 0;
+}
+
+typedef errcode_t (*xattr_xlate_get)(void **cooked_buf, size_t *cooked_sz,
+				     const void *raw_buf, size_t raw_sz);
+typedef errcode_t (*xattr_xlate_set)(const void *cooked_buf, size_t cooked_sz,
+				     const void **raw_buf, size_t *raw_sz);
+struct xattr_translate {
+	const char *prefix;
+	xattr_xlate_get get;
+	xattr_xlate_set set;
+};
+
+#define XATTR_TRANSLATOR(p, g, s) \
+	{.prefix = (p), \
+	 .get = (xattr_xlate_get)(g), \
+	 .set = (xattr_xlate_set)(s)}
+
+static struct xattr_translate xattr_translators[] = {
+#ifdef TRANSLATE_LINUX_ACLS
+	XATTR_TRANSLATOR(ACL_EA_ACCESS, ext4_to_fuse_acl, fuse_to_ext4_acl),
+	XATTR_TRANSLATOR(ACL_EA_DEFAULT, ext4_to_fuse_acl, fuse_to_ext4_acl),
+#endif
+	XATTR_TRANSLATOR(NULL, NULL, NULL),
+};
+#undef XATTR_TRANSLATOR
+
+static int op_getxattr(const char *path, const char *key, char *value,
+		       size_t len)
+{
+	struct fuse_context *ctxt = fuse_get_context();
+	struct fuse2fs *ff = (struct fuse2fs *)ctxt->private_data;
+	ext2_filsys fs;
+	struct ext2_xattr_handle *h;
+	struct xattr_translate *xt;
+	void *ptr, *cptr;
+	size_t plen, clen;
+	ext2_ino_t ino;
+	errcode_t err;
+	int ret = 0;
+
+	FUSE2FS_CHECK_CONTEXT(ff);
+	fs = ff->fs;
+	pthread_mutex_lock(&ff->bfl);
+	if (!ext2fs_has_feature_xattr(fs->super)) {
+		ret = -ENOTSUP;
+		goto out;
+	}
+
+	err = ext2fs_namei(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, path, &ino);
+	if (err || ino == 0) {
+		ret = translate_error(fs, 0, err);
+		goto out;
+	}
+	dbg_printf("%s: ino=%d\n", __func__, ino);
+
+	ret = check_inum_access(fs, ino, R_OK);
+	if (ret)
+		goto out;
+
+	err = ext2fs_xattrs_open(fs, ino, &h);
+	if (err) {
+		ret = translate_error(fs, ino, err);
+		goto out;
+	}
+
+	err = ext2fs_xattrs_read(h);
+	if (err) {
+		ret = translate_error(fs, ino, err);
+		goto out2;
+	}
+
+	err = ext2fs_xattr_get(h, key, &ptr, &plen);
+	if (err) {
+		ret = translate_error(fs, ino, err);
+		goto out2;
+	}
+
+	for (xt = xattr_translators; xt->prefix != NULL; xt++) {
+		if (strncmp(key, xt->prefix, strlen(xt->prefix)) == 0) {
+			err = xt->get(&cptr, &clen, ptr, plen);
+			if (err)
+				goto out3;
+			ext2fs_free_mem(&ptr);
+			ptr = cptr;
+			plen = clen;
+		}
+	}
+
+	if (!len) {
+		ret = plen;
+	} else if (len < plen) {
+		ret = -ERANGE;
+	} else {
+		memcpy(value, ptr, plen);
+		ret = plen;
+	}
+
+out3:
+	ext2fs_free_mem(&ptr);
+out2:
+	err = ext2fs_xattrs_close(&h);
+	if (err)
+		ret = translate_error(fs, ino, err);
+out:
+	pthread_mutex_unlock(&ff->bfl);
+
+	return ret;
+}
+
+static int count_buffer_space(char *name, char *value EXT2FS_ATTR((unused)),
+			      size_t value_len EXT2FS_ATTR((unused)),
+			      void *data)
+{
+	unsigned int *x = data;
+
+	*x = *x + strlen(name) + 1;
+	return 0;
+}
+
+static int copy_names(char *name, char *value EXT2FS_ATTR((unused)),
+		      size_t value_len EXT2FS_ATTR((unused)), void *data)
+{
+	char **b = data;
+	size_t name_len = strlen(name);
+
+	memcpy(*b, name, name_len + 1);
+	*b = *b + name_len + 1;
+
+	return 0;
+}
+
+static int op_listxattr(const char *path, char *names, size_t len)
+{
+	struct fuse_context *ctxt = fuse_get_context();
+	struct fuse2fs *ff = (struct fuse2fs *)ctxt->private_data;
+	ext2_filsys fs;
+	struct ext2_xattr_handle *h;
+	unsigned int bufsz;
+	ext2_ino_t ino;
+	errcode_t err;
+	int ret = 0;
+
+	FUSE2FS_CHECK_CONTEXT(ff);
+	fs = ff->fs;
+	pthread_mutex_lock(&ff->bfl);
+	if (!ext2fs_has_feature_xattr(fs->super)) {
+		ret = -ENOTSUP;
+		goto out;
+	}
+
+	err = ext2fs_namei(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, path, &ino);
+	if (err || ino == 0) {
+		ret = translate_error(fs, ino, err);
+		goto out;
+	}
+	dbg_printf("%s: ino=%d\n", __func__, ino);
+
+	ret = check_inum_access(fs, ino, R_OK);
+	if (ret)
+		goto out;
+
+	err = ext2fs_xattrs_open(fs, ino, &h);
+	if (err) {
+		ret = translate_error(fs, ino, err);
+		goto out;
+	}
+
+	err = ext2fs_xattrs_read(h);
+	if (err) {
+		ret = translate_error(fs, ino, err);
+		goto out2;
+	}
+
+	/* Count buffer space needed for names */
+	bufsz = 0;
+	err = ext2fs_xattrs_iterate(h, count_buffer_space, &bufsz);
+	if (err) {
+		ret = translate_error(fs, ino, err);
+		goto out2;
+	}
+
+	if (len == 0) {
+		ret = bufsz;
+		goto out2;
+	} else if (len < bufsz) {
+		ret = -ERANGE;
+		goto out2;
+	}
+
+	/* Copy names out */
+	memset(names, 0, len);
+	err = ext2fs_xattrs_iterate(h, copy_names, &names);
+	if (err) {
+		ret = translate_error(fs, ino, err);
+		goto out2;
+	}
+	ret = bufsz;
+out2:
+	err = ext2fs_xattrs_close(&h);
+	if (err)
+		ret = translate_error(fs, ino, err);
+out:
+	pthread_mutex_unlock(&ff->bfl);
+
+	return ret;
+}
+
+static int op_setxattr(const char *path EXT2FS_ATTR((unused)),
+		       const char *key, const char *value,
+		       size_t len, int flags EXT2FS_ATTR((unused)))
+{
+	struct fuse_context *ctxt = fuse_get_context();
+	struct fuse2fs *ff = (struct fuse2fs *)ctxt->private_data;
+	ext2_filsys fs;
+	struct ext2_xattr_handle *h;
+	struct xattr_translate *xt;
+	const void *cvalue;
+	size_t clen;
+	ext2_ino_t ino;
+	errcode_t err;
+	int ret = 0;
+
+	FUSE2FS_CHECK_CONTEXT(ff);
+	fs = ff->fs;
+	pthread_mutex_lock(&ff->bfl);
+	if (!ext2fs_has_feature_xattr(fs->super)) {
+		ret = -ENOTSUP;
+		goto out;
+	}
+
+	err = ext2fs_namei(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, path, &ino);
+	if (err || ino == 0) {
+		ret = translate_error(fs, 0, err);
+		goto out;
+	}
+	dbg_printf("%s: ino=%d\n", __func__, ino);
+
+	ret = check_inum_access(fs, ino, W_OK);
+	if (ret == -EACCES) {
+		ret = -EPERM;
+		goto out;
+	} else if (ret)
+		goto out;
+
+	err = ext2fs_xattrs_open(fs, ino, &h);
+	if (err) {
+		ret = translate_error(fs, ino, err);
+		goto out;
+	}
+
+	err = ext2fs_xattrs_read(h);
+	if (err) {
+		ret = translate_error(fs, ino, err);
+		goto out2;
+	}
+
+	cvalue = value;
+	clen = len;
+	for (xt = xattr_translators; xt->prefix != NULL; xt++) {
+		if (strncmp(key, xt->prefix, strlen(xt->prefix)) == 0) {
+			err = xt->set(value, len, &cvalue, &clen);
+			if (err)
+				goto out3;
+		}
+	}
+
+	err = ext2fs_xattr_set(h, key, cvalue, clen);
+	if (err) {
+		ret = translate_error(fs, ino, err);
+		goto out3;
+	}
+
+	ret = update_ctime(fs, ino, NULL);
+out3:
+	if (cvalue != value)
+		ext2fs_free_mem(&cvalue);
+out2:
+	err = ext2fs_xattrs_close(&h);
+	if (!ret && err)
+		ret = translate_error(fs, ino, err);
+out:
+	pthread_mutex_unlock(&ff->bfl);
+
+	return ret;
+}
+
+static int op_removexattr(const char *path, const char *key)
+{
+	struct fuse_context *ctxt = fuse_get_context();
+	struct fuse2fs *ff = (struct fuse2fs *)ctxt->private_data;
+	ext2_filsys fs;
+	struct ext2_xattr_handle *h;
+	ext2_ino_t ino;
+	errcode_t err;
+	int ret = 0;
+
+	FUSE2FS_CHECK_CONTEXT(ff);
+	fs = ff->fs;
+	pthread_mutex_lock(&ff->bfl);
+	if (!ext2fs_has_feature_xattr(fs->super)) {
+		ret = -ENOTSUP;
+		goto out;
+	}
+
+	if (!fs_can_allocate(ff, 1)) {
+		ret = -ENOSPC;
+		goto out;
+	}
+
+	err = ext2fs_namei(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, path, &ino);
+	if (err || ino == 0) {
+		ret = translate_error(fs, 0, err);
+		goto out;
+	}
+	dbg_printf("%s: ino=%d\n", __func__, ino);
+
+	ret = check_inum_access(fs, ino, W_OK);
+	if (ret)
+		goto out;
+
+	err = ext2fs_xattrs_open(fs, ino, &h);
+	if (err) {
+		ret = translate_error(fs, ino, err);
+		goto out;
+	}
+
+	err = ext2fs_xattrs_read(h);
+	if (err) {
+		ret = translate_error(fs, ino, err);
+		goto out2;
+	}
+
+	err = ext2fs_xattr_remove(h, key);
+	if (err) {
+		ret = translate_error(fs, ino, err);
+		goto out2;
+	}
+
+	ret = update_ctime(fs, ino, NULL);
+out2:
+	err = ext2fs_xattrs_close(&h);
+	if (err)
+		ret = translate_error(fs, ino, err);
+out:
+	pthread_mutex_unlock(&ff->bfl);
+
+	return ret;
+}
+
+struct readdir_iter {
+	void *buf;
+	fuse_fill_dir_t func;
+};
+
+static int op_readdir_iter(ext2_ino_t dir EXT2FS_ATTR((unused)),
+			   int entry EXT2FS_ATTR((unused)),
+			   struct ext2_dir_entry *dirent,
+			   int offset EXT2FS_ATTR((unused)),
+			   int blocksize EXT2FS_ATTR((unused)),
+			   char *buf EXT2FS_ATTR((unused)), void *data)
+{
+	struct readdir_iter *i = data;
+	char namebuf[EXT2_NAME_LEN + 1];
+	int ret;
+
+	memcpy(namebuf, dirent->name, dirent->name_len & 0xFF);
+	namebuf[dirent->name_len & 0xFF] = 0;
+	ret = i->func(i->buf, namebuf, NULL, 0);
+	if (ret)
+		return DIRENT_ABORT;
+
+	return 0;
+}
+
+static int op_readdir(const char *path EXT2FS_ATTR((unused)),
+		      void *buf, fuse_fill_dir_t fill_func,
+		      off_t offset EXT2FS_ATTR((unused)),
+		      struct fuse_file_info *fp)
+{
+	struct fuse_context *ctxt = fuse_get_context();
+	struct fuse2fs *ff = (struct fuse2fs *)ctxt->private_data;
+	struct fuse2fs_file_handle *fh =
+		(struct fuse2fs_file_handle *)(uintptr_t)fp->fh;
+	ext2_filsys fs;
+	errcode_t err;
+	struct readdir_iter i;
+	int ret = 0;
+
+	FUSE2FS_CHECK_CONTEXT(ff);
+	fs = ff->fs;
+	FUSE2FS_CHECK_MAGIC(fs, fh, FUSE2FS_FILE_MAGIC);
+	dbg_printf("%s: ino=%d\n", __func__, fh->ino);
+	pthread_mutex_lock(&ff->bfl);
+	i.buf = buf;
+	i.func = fill_func;
+	err = ext2fs_dir_iterate2(fs, fh->ino, 0, NULL, op_readdir_iter, &i);
+	if (err) {
+		ret = translate_error(fs, fh->ino, err);
+		goto out;
+	}
+
+	if (fs_writeable(fs)) {
+		ret = update_atime(fs, fh->ino);
+		if (ret)
+			goto out;
+	}
+out:
+	pthread_mutex_unlock(&ff->bfl);
+	return ret;
+}
+
+static int op_access(const char *path, int mask)
+{
+	struct fuse_context *ctxt = fuse_get_context();
+	struct fuse2fs *ff = (struct fuse2fs *)ctxt->private_data;
+	ext2_filsys fs;
+	errcode_t err;
+	ext2_ino_t ino;
+	int ret = 0;
+
+	FUSE2FS_CHECK_CONTEXT(ff);
+	fs = ff->fs;
+	dbg_printf("%s: path=%s mask=0x%x\n", __func__, path, mask);
+	pthread_mutex_lock(&ff->bfl);
+	err = ext2fs_namei(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, path, &ino);
+	if (err || ino == 0) {
+		ret = translate_error(fs, 0, err);
+		goto out;
+	}
+
+	ret = check_inum_access(fs, ino, mask);
+	if (ret)
+		goto out;
+
+out:
+	pthread_mutex_unlock(&ff->bfl);
+	return ret;
+}
+
+static int op_create(const char *path, mode_t mode, struct fuse_file_info *fp)
+{
+	struct fuse_context *ctxt = fuse_get_context();
+	struct fuse2fs *ff = (struct fuse2fs *)ctxt->private_data;
+	ext2_filsys fs;
+	ext2_ino_t parent, child;
+	char *temp_path;
+	errcode_t err;
+	char *node_name, a;
+	int filetype;
+	struct ext2_inode_large inode;
+	int ret = 0;
+
+	FUSE2FS_CHECK_CONTEXT(ff);
+	fs = ff->fs;
+	dbg_printf("%s: path=%s mode=0%o\n", __func__, path, mode);
+	temp_path = strdup(path);
+	if (!temp_path) {
+		ret = -ENOMEM;
+		goto out;
+	}
+	node_name = strrchr(temp_path, '/');
+	if (!node_name) {
+		ret = -ENOMEM;
+		goto out;
+	}
+	node_name++;
+	a = *node_name;
+	*node_name = 0;
+
+	pthread_mutex_lock(&ff->bfl);
+	if (!fs_can_allocate(ff, 1)) {
+		ret = -ENOSPC;
+		goto out2;
+	}
+
+	err = ext2fs_namei(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, temp_path,
+			   &parent);
+	if (err) {
+		ret = translate_error(fs, 0, err);
+		goto out2;
+	}
+
+	ret = check_inum_access(fs, parent, W_OK);
+	if (ret)
+		goto out2;
+
+	*node_name = a;
+
+	filetype = ext2_file_type(mode);
+
+	err = ext2fs_new_inode(fs, parent, mode, 0, &child);
+	if (err) {
+		ret = translate_error(fs, parent, err);
+		goto out2;
+	}
+
+	dbg_printf("%s: creating ino=%d/name=%s in dir=%d\n", __func__, child,
+		   node_name, parent);
+	err = ext2fs_link(fs, parent, node_name, child, filetype);
+	if (err == EXT2_ET_DIR_NO_SPACE) {
+		err = ext2fs_expand_dir(fs, parent);
+		if (err) {
+			ret = translate_error(fs, parent, err);
+			goto out2;
+		}
+
+		err = ext2fs_link(fs, parent, node_name, child,
+				     filetype);
+	}
+	if (err) {
+		ret = translate_error(fs, parent, err);
+		goto out2;
+	}
+
+	ret = update_mtime(fs, parent, NULL);
+	if (ret)
+		goto out2;
+
+	memset(&inode, 0, sizeof(inode));
+	inode.i_mode = mode;
+	inode.i_links_count = 1;
+	inode.i_extra_isize = sizeof(struct ext2_inode_large) -
+		EXT2_GOOD_OLD_INODE_SIZE;
+	inode.i_uid = ctxt->uid;
+	ext2fs_set_i_uid_high(inode, ctxt->uid >> 16);
+	inode.i_gid = ctxt->gid;
+	ext2fs_set_i_gid_high(inode, ctxt->gid >> 16);
+	if (ext2fs_has_feature_extents(fs->super)) {
+		ext2_extent_handle_t handle;
+
+		inode.i_flags &= ~EXT4_EXTENTS_FL;
+		ret = ext2fs_extent_open2(fs, child,
+					  (struct ext2_inode *)&inode, &handle);
+		if (ret)
+			return ret;
+		ext2fs_extent_free(handle);
+	}
+
+	err = ext2fs_write_new_inode(fs, child, (struct ext2_inode *)&inode);
+	if (err) {
+		ret = translate_error(fs, child, err);
+		goto out2;
+	}
+
+	inode.i_generation = ff->next_generation++;
+	init_times(&inode);
+	err = ext2fs_write_inode_full(fs, child, (struct ext2_inode *)&inode,
+				      sizeof(inode));
+	if (err) {
+		ret = translate_error(fs, child, err);
+		goto out2;
+	}
+
+	ext2fs_inode_alloc_stats2(fs, child, 1, 0);
+
+	ret = __op_open(ff, path, fp);
+	if (ret)
+		goto out2;
+out2:
+	pthread_mutex_unlock(&ff->bfl);
+out:
+	free(temp_path);
+	return ret;
+}
+
+static int op_ftruncate(const char *path EXT2FS_ATTR((unused)),
+			off_t len, struct fuse_file_info *fp)
+{
+	struct fuse_context *ctxt = fuse_get_context();
+	struct fuse2fs *ff = (struct fuse2fs *)ctxt->private_data;
+	struct fuse2fs_file_handle *fh =
+		(struct fuse2fs_file_handle *)(uintptr_t)fp->fh;
+	ext2_filsys fs;
+	ext2_file_t efp;
+	errcode_t err;
+	int ret = 0;
+
+	FUSE2FS_CHECK_CONTEXT(ff);
+	fs = ff->fs;
+	FUSE2FS_CHECK_MAGIC(fs, fh, FUSE2FS_FILE_MAGIC);
+	dbg_printf("%s: ino=%d len=%jd\n", __func__, fh->ino, len);
+	pthread_mutex_lock(&ff->bfl);
+	if (!fs_writeable(fs)) {
+		ret = -EROFS;
+		goto out;
+	}
+
+	err = ext2fs_file_open(fs, fh->ino, fh->open_flags, &efp);
+	if (err) {
+		ret = translate_error(fs, fh->ino, err);
+		goto out;
+	}
+
+	err = ext2fs_file_set_size2(efp, len);
+	if (err) {
+		ret = translate_error(fs, fh->ino, err);
+		goto out2;
+	}
+
+out2:
+	err = ext2fs_file_close(efp);
+	if (ret)
+		goto out;
+	if (err) {
+		ret = translate_error(fs, fh->ino, err);
+		goto out;
+	}
+
+	ret = update_mtime(fs, fh->ino, NULL);
+	if (ret)
+		goto out;
+
+out:
+	pthread_mutex_unlock(&ff->bfl);
+	return 0;
+}
+
+static int op_fgetattr(const char *path EXT2FS_ATTR((unused)),
+		       struct stat *statbuf,
+		       struct fuse_file_info *fp)
+{
+	struct fuse_context *ctxt = fuse_get_context();
+	struct fuse2fs *ff = (struct fuse2fs *)ctxt->private_data;
+	ext2_filsys fs;
+	struct fuse2fs_file_handle *fh =
+		(struct fuse2fs_file_handle *)(uintptr_t)fp->fh;
+	int ret = 0;
+
+	FUSE2FS_CHECK_CONTEXT(ff);
+	fs = ff->fs;
+	FUSE2FS_CHECK_MAGIC(fs, fh, FUSE2FS_FILE_MAGIC);
+	dbg_printf("%s: ino=%d\n", __func__, fh->ino);
+	pthread_mutex_lock(&ff->bfl);
+	ret = stat_inode(fs, fh->ino, statbuf);
+	pthread_mutex_unlock(&ff->bfl);
+
+	return ret;
+}
+
+static int op_utimens(const char *path, const struct timespec ctv[2])
+{
+	struct fuse_context *ctxt = fuse_get_context();
+	struct fuse2fs *ff = (struct fuse2fs *)ctxt->private_data;
+	struct timespec tv[2];
+	ext2_filsys fs;
+	errcode_t err;
+	ext2_ino_t ino;
+	struct ext2_inode_large inode;
+	int ret = 0;
+
+	FUSE2FS_CHECK_CONTEXT(ff);
+	fs = ff->fs;
+	pthread_mutex_lock(&ff->bfl);
+	err = ext2fs_namei(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, path, &ino);
+	if (err) {
+		ret = translate_error(fs, 0, err);
+		goto out;
+	}
+	dbg_printf("%s: ino=%d\n", __func__, ino);
+
+	ret = check_inum_access(fs, ino, W_OK);
+	if (ret)
+		goto out;
+
+	memset(&inode, 0, sizeof(inode));
+	err = ext2fs_read_inode_full(fs, ino, (struct ext2_inode *)&inode,
+				     sizeof(inode));
+	if (err) {
+		ret = translate_error(fs, ino, err);
+		goto out;
+	}
+
+	tv[0] = ctv[0];
+	tv[1] = ctv[1];
+#ifdef UTIME_NOW
+	if (tv[0].tv_nsec == UTIME_NOW)
+		get_now(tv);
+	if (tv[1].tv_nsec == UTIME_NOW)
+		get_now(tv + 1);
+#endif /* UTIME_NOW */
+#ifdef UTIME_OMIT
+	if (tv[0].tv_nsec != UTIME_OMIT)
+		EXT4_INODE_SET_XTIME(i_atime, tv, &inode);
+	if (tv[1].tv_nsec != UTIME_OMIT)
+		EXT4_INODE_SET_XTIME(i_mtime, tv + 1, &inode);
+#endif /* UTIME_OMIT */
+	ret = update_ctime(fs, ino, &inode);
+	if (ret)
+		goto out;
+
+	err = ext2fs_write_inode_full(fs, ino, (struct ext2_inode *)&inode,
+				      sizeof(inode));
+	if (err) {
+		ret = translate_error(fs, ino, err);
+		goto out;
+	}
+
+out:
+	pthread_mutex_unlock(&ff->bfl);
+	return ret;
+}
+
+#ifdef SUPPORT_I_FLAGS
+static int ioctl_getflags(ext2_filsys fs, struct fuse2fs_file_handle *fh,
+			  void *data)
+{
+	errcode_t err;
+	struct ext2_inode_large inode;
+
+	FUSE2FS_CHECK_MAGIC(fs, fh, FUSE2FS_FILE_MAGIC);
+	dbg_printf("%s: ino=%d\n", __func__, fh->ino);
+	memset(&inode, 0, sizeof(inode));
+	err = ext2fs_read_inode_full(fs, fh->ino, (struct ext2_inode *)&inode,
+				     sizeof(inode));
+	if (err)
+		return translate_error(fs, fh->ino, err);
+
+	*(__u32 *)data = inode.i_flags & EXT2_FL_USER_VISIBLE;
+	return 0;
+}
+
+#define FUSE2FS_MODIFIABLE_IFLAGS \
+	(EXT2_IMMUTABLE_FL | EXT2_APPEND_FL | EXT2_NODUMP_FL | \
+	 EXT2_NOATIME_FL | EXT3_JOURNAL_DATA_FL | EXT2_DIRSYNC_FL | \
+	 EXT2_TOPDIR_FL)
+
+static int ioctl_setflags(ext2_filsys fs, struct fuse2fs_file_handle *fh,
+			  void *data)
+{
+	errcode_t err;
+	struct ext2_inode_large inode;
+	int ret;
+	__u32 flags = *(__u32 *)data;
+	struct fuse_context *ctxt = fuse_get_context();
+	struct fuse2fs *ff = (struct fuse2fs *)ctxt->private_data;
+
+	FUSE2FS_CHECK_MAGIC(fs, fh, FUSE2FS_FILE_MAGIC);
+	dbg_printf("%s: ino=%d\n", __func__, fh->ino);
+	memset(&inode, 0, sizeof(inode));
+	err = ext2fs_read_inode_full(fs, fh->ino, (struct ext2_inode *)&inode,
+				     sizeof(inode));
+	if (err)
+		return translate_error(fs, fh->ino, err);
+
+	if (!ff->fakeroot && ctxt->uid != 0 && inode_uid(inode) != ctxt->uid)
+		return -EPERM;
+
+	if ((inode.i_flags ^ flags) & ~FUSE2FS_MODIFIABLE_IFLAGS)
+		return -EINVAL;
+
+	inode.i_flags = (inode.i_flags & ~FUSE2FS_MODIFIABLE_IFLAGS) |
+			(flags & FUSE2FS_MODIFIABLE_IFLAGS);
+
+	ret = update_ctime(fs, fh->ino, &inode);
+	if (ret)
+		return ret;
+
+	err = ext2fs_write_inode_full(fs, fh->ino, (struct ext2_inode *)&inode,
+				      sizeof(inode));
+	if (err)
+		return translate_error(fs, fh->ino, err);
+
+	return 0;
+}
+
+static int ioctl_getversion(ext2_filsys fs, struct fuse2fs_file_handle *fh,
+			    void *data)
+{
+	errcode_t err;
+	struct ext2_inode_large inode;
+
+	FUSE2FS_CHECK_MAGIC(fs, fh, FUSE2FS_FILE_MAGIC);
+	dbg_printf("%s: ino=%d\n", __func__, fh->ino);
+	memset(&inode, 0, sizeof(inode));
+	err = ext2fs_read_inode_full(fs, fh->ino, (struct ext2_inode *)&inode,
+				     sizeof(inode));
+	if (err)
+		return translate_error(fs, fh->ino, err);
+
+	*(__u32 *)data = inode.i_generation;
+	return 0;
+}
+
+static int ioctl_setversion(ext2_filsys fs, struct fuse2fs_file_handle *fh,
+			    void *data)
+{
+	errcode_t err;
+	struct ext2_inode_large inode;
+	int ret;
+	__u32 generation = *(__u32 *)data;
+	struct fuse_context *ctxt = fuse_get_context();
+	struct fuse2fs *ff = (struct fuse2fs *)ctxt->private_data;
+
+	FUSE2FS_CHECK_MAGIC(fs, fh, FUSE2FS_FILE_MAGIC);
+	dbg_printf("%s: ino=%d\n", __func__, fh->ino);
+	memset(&inode, 0, sizeof(inode));
+	err = ext2fs_read_inode_full(fs, fh->ino, (struct ext2_inode *)&inode,
+				     sizeof(inode));
+	if (err)
+		return translate_error(fs, fh->ino, err);
+
+	if (!ff->fakeroot && ctxt->uid != 0 && inode_uid(inode) != ctxt->uid)
+		return -EPERM;
+
+	inode.i_generation = generation;
+
+	ret = update_ctime(fs, fh->ino, &inode);
+	if (ret)
+		return ret;
+
+	err = ext2fs_write_inode_full(fs, fh->ino, (struct ext2_inode *)&inode,
+				      sizeof(inode));
+	if (err)
+		return translate_error(fs, fh->ino, err);
+
+	return 0;
+}
+#endif /* SUPPORT_I_FLAGS */
+
+#ifdef FITRIM
+static int ioctl_fitrim(ext2_filsys fs, struct fuse2fs_file_handle *fh,
+			void *data)
+{
+	struct fstrim_range *fr = data;
+	blk64_t start, end, max_blocks, b, cleared;
+	errcode_t err = 0;
+
+	start = fr->start / fs->blocksize;
+	end = (fr->start + fr->len - 1) / fs->blocksize;
+	dbg_printf("%s: start=%llu end=%llu\n", __func__, start, end);
+
+	if (start < fs->super->s_first_data_block)
+		start = fs->super->s_first_data_block;
+	if (start >= ext2fs_blocks_count(fs->super))
+		start = ext2fs_blocks_count(fs->super) - 1;
+
+	if (end < fs->super->s_first_data_block)
+		end = fs->super->s_first_data_block;
+	if (end >= ext2fs_blocks_count(fs->super))
+		end = ext2fs_blocks_count(fs->super) - 1;
+
+	cleared = 0;
+	max_blocks = 2048ULL * 1024 * 1024 / fs->blocksize;
+
+	fr->len = 0;
+	while (start <= end) {
+		err = ext2fs_find_first_zero_block_bitmap2(fs->block_map,
+							   start, end, &start);
+		if (err == ENOENT)
+			return 0;
+		else if (err)
+			return translate_error(fs, fh->ino, err);
+
+		b = start + max_blocks < end ? start + max_blocks : end;
+		err =  ext2fs_find_first_set_block_bitmap2(fs->block_map,
+							   start, b, &b);
+		if (err && err != ENOENT)
+			return translate_error(fs, fh->ino, err);
+		if (b - start >= fr->minlen) {
+			err = io_channel_discard(fs->io, start, b - start);
+			if (err)
+				return translate_error(fs, fh->ino, err);
+			cleared += b - start;
+			fr->len = cleared * fs->blocksize;
+		}
+		start = b + 1;
+	}
+
+	return err;
+}
+#endif /* FITRIM */
+
+#if FUSE_VERSION >= FUSE_MAKE_VERSION(2, 8)
+static int op_ioctl(const char *path EXT2FS_ATTR((unused)), int cmd,
+		    void *arg EXT2FS_ATTR((unused)),
+		    struct fuse_file_info *fp,
+		    unsigned int flags EXT2FS_ATTR((unused)), void *data)
+{
+	struct fuse_context *ctxt = fuse_get_context();
+	struct fuse2fs *ff = (struct fuse2fs *)ctxt->private_data;
+	struct fuse2fs_file_handle *fh =
+		(struct fuse2fs_file_handle *)(uintptr_t)fp->fh;
+	ext2_filsys fs;
+	int ret = 0;
+
+	FUSE2FS_CHECK_CONTEXT(ff);
+	fs = ff->fs;
+	pthread_mutex_lock(&ff->bfl);
+	switch ((unsigned long) cmd) {
+#ifdef SUPPORT_I_FLAGS
+	case EXT2_IOC_GETFLAGS:
+		ret = ioctl_getflags(fs, fh, data);
+		break;
+	case EXT2_IOC_SETFLAGS:
+		ret = ioctl_setflags(fs, fh, data);
+		break;
+	case EXT2_IOC_GETVERSION:
+		ret = ioctl_getversion(fs, fh, data);
+		break;
+	case EXT2_IOC_SETVERSION:
+		ret = ioctl_setversion(fs, fh, data);
+		break;
+#endif
+#ifdef FITRIM
+	case FITRIM:
+		ret = ioctl_fitrim(fs, fh, data);
+		break;
+#endif
+	default:
+		dbg_printf("%s: Unknown ioctl %d\n", __func__, cmd);
+		ret = -ENOTTY;
+	}
+	pthread_mutex_unlock(&ff->bfl);
+
+	return ret;
+}
+#endif /* FUSE 28 */
+
+static int op_bmap(const char *path, size_t blocksize EXT2FS_ATTR((unused)),
+		   uint64_t *idx)
+{
+	struct fuse_context *ctxt = fuse_get_context();
+	struct fuse2fs *ff = (struct fuse2fs *)ctxt->private_data;
+	ext2_filsys fs;
+	ext2_ino_t ino;
+	errcode_t err;
+	int ret = 0;
+
+	FUSE2FS_CHECK_CONTEXT(ff);
+	fs = ff->fs;
+	pthread_mutex_lock(&ff->bfl);
+	err = ext2fs_namei(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, path, &ino);
+	if (err) {
+		ret = translate_error(fs, 0, err);
+		goto out;
+	}
+	dbg_printf("%s: ino=%d blk=%"PRIu64"\n", __func__, ino, *idx);
+
+	err = ext2fs_bmap2(fs, ino, NULL, NULL, 0, *idx, 0, (blk64_t *)idx);
+	if (err) {
+		ret = translate_error(fs, ino, err);
+		goto out;
+	}
+
+out:
+	pthread_mutex_unlock(&ff->bfl);
+	return ret;
+}
+
+#if FUSE_VERSION >= FUSE_MAKE_VERSION(2, 9)
+# ifdef SUPPORT_FALLOCATE
+static int fallocate_helper(struct fuse_file_info *fp, int mode, off_t offset,
+			    off_t len)
+{
+	struct fuse_context *ctxt = fuse_get_context();
+	struct fuse2fs *ff = (struct fuse2fs *)ctxt->private_data;
+	struct fuse2fs_file_handle *fh =
+		(struct fuse2fs_file_handle *)(uintptr_t)fp->fh;
+	ext2_filsys fs;
+	struct ext2_inode_large inode;
+	blk64_t start, end;
+	__u64 fsize;
+	errcode_t err;
+	int flags;
+
+	FUSE2FS_CHECK_CONTEXT(ff);
+	fs = ff->fs;
+	FUSE2FS_CHECK_MAGIC(fs, fh, FUSE2FS_FILE_MAGIC);
+	start = offset / fs->blocksize;
+	end = (offset + len - 1) / fs->blocksize;
+	dbg_printf("%s: ino=%d mode=0x%x start=%jd end=%llu\n", __func__,
+		   fh->ino, mode, offset / fs->blocksize, end);
+	if (!fs_can_allocate(ff, len / fs->blocksize))
+		return -ENOSPC;
+
+	memset(&inode, 0, sizeof(inode));
+	err = ext2fs_read_inode_full(fs, fh->ino, (struct ext2_inode *)&inode,
+				     sizeof(inode));
+	if (err)
+		return err;
+	fsize = EXT2_I_SIZE(&inode);
+
+	/* Allocate a bunch of blocks */
+	flags = (mode & FL_KEEP_SIZE_FLAG ? 0 :
+			EXT2_FALLOCATE_INIT_BEYOND_EOF);
+	err = ext2fs_fallocate(fs, flags, fh->ino,
+			       (struct ext2_inode *)&inode,
+			       ~0ULL, start, end - start + 1);
+	if (err && err != EXT2_ET_BLOCK_ALLOC_FAIL)
+		return translate_error(fs, fh->ino, err);
+
+	/* Update i_size */
+	if (!(mode & FL_KEEP_SIZE_FLAG)) {
+		if ((__u64) offset + len > fsize) {
+			err = ext2fs_inode_size_set(fs,
+						(struct ext2_inode *)&inode,
+						offset + len);
+			if (err)
+				return translate_error(fs, fh->ino, err);
+		}
+	}
+
+	err = update_mtime(fs, fh->ino, &inode);
+	if (err)
+		return err;
+
+	err = ext2fs_write_inode_full(fs, fh->ino, (struct ext2_inode *)&inode,
+				      sizeof(inode));
+	if (err)
+		return translate_error(fs, fh->ino, err);
+
+	return err;
+}
+
+static errcode_t clean_block_middle(ext2_filsys fs, ext2_ino_t ino,
+				  struct ext2_inode_large *inode, off_t offset,
+				  off_t len, char **buf)
+{
+	blk64_t blk;
+	off_t residue;
+	int retflags;
+	errcode_t err;
+
+	residue = offset % fs->blocksize;
+	if (residue == 0)
+		return 0;
+
+	if (!*buf) {
+		err = ext2fs_get_mem(fs->blocksize, buf);
+		if (err)
+			return err;
+	}
+
+	err = ext2fs_bmap2(fs, ino, (struct ext2_inode *)inode, *buf, 0,
+			   offset / fs->blocksize, &retflags, &blk);
+	if (err)
+		return err;
+	if (!blk || (retflags & BMAP_RET_UNINIT))
+		return 0;
+
+	err = io_channel_read_blk(fs->io, blk, 1, *buf);
+	if (err)
+		return err;
+
+	memset(*buf + residue, 0, len);
+
+	return io_channel_write_blk(fs->io, blk, 1, *buf);
+}
+
+static errcode_t clean_block_edge(ext2_filsys fs, ext2_ino_t ino,
+				  struct ext2_inode_large *inode, off_t offset,
+				  int clean_before, char **buf)
+{
+	blk64_t blk;
+	int retflags;
+	off_t residue;
+	errcode_t err;
+
+	residue = offset % fs->blocksize;
+	if (residue == 0)
+		return 0;
+
+	if (!*buf) {
+		err = ext2fs_get_mem(fs->blocksize, buf);
+		if (err)
+			return err;
+	}
+
+	err = ext2fs_bmap2(fs, ino, (struct ext2_inode *)inode, *buf, 0,
+			   offset / fs->blocksize, &retflags, &blk);
+	if (err)
+		return err;
+
+	err = io_channel_read_blk(fs->io, blk, 1, *buf);
+	if (err)
+		return err;
+	if (!blk || (retflags & BMAP_RET_UNINIT))
+		return 0;
+
+	if (clean_before)
+		memset(*buf, 0, residue);
+	else
+		memset(*buf + residue, 0, fs->blocksize - residue);
+
+	return io_channel_write_blk(fs->io, blk, 1, *buf);
+}
+
+static int punch_helper(struct fuse_file_info *fp, int mode, off_t offset,
+			off_t len)
+{
+	struct fuse_context *ctxt = fuse_get_context();
+	struct fuse2fs *ff = (struct fuse2fs *)ctxt->private_data;
+	struct fuse2fs_file_handle *fh =
+		(struct fuse2fs_file_handle *)(uintptr_t)fp->fh;
+	ext2_filsys fs;
+	struct ext2_inode_large inode;
+	blk64_t start, end;
+	errcode_t err;
+	char *buf = NULL;
+
+	FUSE2FS_CHECK_CONTEXT(ff);
+	fs = ff->fs;
+	FUSE2FS_CHECK_MAGIC(fs, fh, FUSE2FS_FILE_MAGIC);
+	dbg_printf("%s: offset=%jd len=%jd\n", __func__, offset, len);
+
+	/* kernel ext4 punch requires this flag to be set */
+	if (!(mode & FL_KEEP_SIZE_FLAG))
+		return -EINVAL;
+
+	/* Punch out a bunch of blocks */
+	start = (offset + fs->blocksize - 1) / fs->blocksize;
+	end = (offset + len - fs->blocksize) / fs->blocksize;
+	dbg_printf("%s: ino=%d mode=0x%x start=%llu end=%llu\n", __func__,
+		   fh->ino, mode, start, end);
+
+	memset(&inode, 0, sizeof(inode));
+	err = ext2fs_read_inode_full(fs, fh->ino, (struct ext2_inode *)&inode,
+				     sizeof(inode));
+	if (err)
+		return translate_error(fs, fh->ino, err);
+
+	/* Zero everything before the first block and after the last block */
+	if ((offset / fs->blocksize) == ((offset + len) / fs->blocksize))
+		err = clean_block_middle(fs, fh->ino, &inode, offset,
+					 len, &buf);
+	else {
+		err = clean_block_edge(fs, fh->ino, &inode, offset, 0, &buf);
+		if (!err)
+			err = clean_block_edge(fs, fh->ino, &inode,
+					       offset + len, 1, &buf);
+	}
+	if (buf)
+		ext2fs_free_mem(&buf);
+	if (err)
+		return translate_error(fs, fh->ino, err);
+
+	/* Unmap full blocks in the middle */
+	if (start <= end) {
+		err = ext2fs_punch(fs, fh->ino, (struct ext2_inode *)&inode,
+				   NULL, start, end);
+		if (err)
+			return translate_error(fs, fh->ino, err);
+	}
+
+	err = update_mtime(fs, fh->ino, &inode);
+	if (err)
+		return err;
+
+	err = ext2fs_write_inode_full(fs, fh->ino, (struct ext2_inode *)&inode,
+				      sizeof(inode));
+	if (err)
+		return translate_error(fs, fh->ino, err);
+
+	return 0;
+}
+
+static int op_fallocate(const char *path EXT2FS_ATTR((unused)), int mode,
+			off_t offset, off_t len,
+			struct fuse_file_info *fp)
+{
+	struct fuse_context *ctxt = fuse_get_context();
+	struct fuse2fs *ff = (struct fuse2fs *)ctxt->private_data;
+	ext2_filsys fs = ff->fs;
+	int ret;
+
+	/* Catch unknown flags */
+	if (mode & ~(FL_PUNCH_HOLE_FLAG | FL_KEEP_SIZE_FLAG))
+		return -EINVAL;
+
+	pthread_mutex_lock(&ff->bfl);
+	if (!fs_writeable(fs)) {
+		ret = -EROFS;
+		goto out;
+	}
+	if (mode & FL_PUNCH_HOLE_FLAG)
+		ret = punch_helper(fp, mode, offset, len);
+	else
+		ret = fallocate_helper(fp, mode, offset, len);
+out:
+	pthread_mutex_unlock(&ff->bfl);
+
+	return ret;
+}
+# endif /* SUPPORT_FALLOCATE */
+#endif /* FUSE 29 */
+
+static struct fuse_operations fs_ops = {
+	.init = op_init,
+	.destroy = op_destroy,
+	.getattr = op_getattr,
+	.readlink = op_readlink,
+	.mknod = op_mknod,
+	.mkdir = op_mkdir,
+	.unlink = op_unlink,
+	.rmdir = op_rmdir,
+	.symlink = op_symlink,
+	.rename = op_rename,
+	.link = op_link,
+	.chmod = op_chmod,
+	.chown = op_chown,
+	.truncate = op_truncate,
+	.open = op_open,
+	.read = op_read,
+	.write = op_write,
+	.statfs = op_statfs,
+	.release = op_release,
+	.fsync = op_fsync,
+	.setxattr = op_setxattr,
+	.getxattr = op_getxattr,
+	.listxattr = op_listxattr,
+	.removexattr = op_removexattr,
+	.opendir = op_open,
+	.readdir = op_readdir,
+	.releasedir = op_release,
+	.fsyncdir = op_fsync,
+	.access = op_access,
+	.create = op_create,
+	.ftruncate = op_ftruncate,
+	.fgetattr = op_fgetattr,
+	.utimens = op_utimens,
+#if FUSE_VERSION >= FUSE_MAKE_VERSION(2, 9)
+# if defined(UTIME_NOW) || defined(UTIME_OMIT)
+	.flag_utime_omit_ok = 1,
+# endif
+#endif
+	.bmap = op_bmap,
+#ifdef SUPERFLUOUS
+	.lock = op_lock,
+	.poll = op_poll,
+#endif
+#if FUSE_VERSION >= FUSE_MAKE_VERSION(2, 8)
+	.ioctl = op_ioctl,
+	.flag_nullpath_ok = 1,
+#endif
+#if FUSE_VERSION >= FUSE_MAKE_VERSION(2, 9)
+	.flag_nopath = 1,
+# ifdef SUPPORT_FALLOCATE
+	.fallocate = op_fallocate,
+# endif
+#endif
+};
+
+static int get_random_bytes(void *p, size_t sz)
+{
+	int fd;
+	ssize_t r;
+
+	fd = open("/dev/urandom", O_RDONLY);
+	if (fd < 0) {
+		perror("/dev/urandom");
+		return 0;
+	}
+
+	r = read(fd, p, sz);
+
+	close(fd);
+	return (size_t) r == sz;
+}
+
+enum {
+	FUSE2FS_VERSION,
+	FUSE2FS_HELP,
+	FUSE2FS_HELPFULL,
+};
+
+#define FUSE2FS_OPT(t, p, v) { t, offsetof(struct fuse2fs, p), v }
+
+static struct fuse_opt fuse2fs_opts[] = {
+	FUSE2FS_OPT("ro",		ro,			1),
+	FUSE2FS_OPT("errors=panic",	panic_on_error,		1),
+	FUSE2FS_OPT("minixdf",		minixdf,		1),
+	FUSE2FS_OPT("fakeroot",		fakeroot,		1),
+	FUSE2FS_OPT("fuse2fs_debug",	debug,			1),
+	FUSE2FS_OPT("no_default_opts",	no_default_opts,	1),
+	FUSE2FS_OPT("norecovery",	norecovery,		1),
+	FUSE2FS_OPT("offset=%lu",	offset,		0),
+
+	FUSE_OPT_KEY("-V",             FUSE2FS_VERSION),
+	FUSE_OPT_KEY("--version",      FUSE2FS_VERSION),
+	FUSE_OPT_KEY("-h",             FUSE2FS_HELP),
+	FUSE_OPT_KEY("--help",         FUSE2FS_HELP),
+	FUSE_OPT_KEY("--helpfull",     FUSE2FS_HELPFULL),
+	FUSE_OPT_END
+};
+
+
+static int fuse2fs_opt_proc(void *data, const char *arg,
+			    int key, struct fuse_args *outargs)
+{
+	struct fuse2fs *ff = data;
+
+	switch (key) {
+	case FUSE_OPT_KEY_NONOPT:
+		if (!ff->device) {
+			ff->device = strdup(arg);
+			return 0;
+		}
+		return 1;
+	case FUSE2FS_HELP:
+	case FUSE2FS_HELPFULL:
+		fprintf(stderr,
+	"usage: %s device/image mountpoint [options]\n"
+	"\n"
+	"general options:\n"
+	"    -o opt,[opt...]  mount options\n"
+	"    -h   --help      print help\n"
+	"    -V   --version   print version\n"
+	"\n"
+	"fuse2fs options:\n"
+	"    -o ro                  read-only mount\n"
+	"    -o errors=panic        dump core on error\n"
+	"    -o minixdf             minix-style df\n"
+	"    -o fakeroot            pretend to be root for permission checks\n"
+	"    -o no_default_opts     do not include default fuse options\n"
+	"    -o offset=<bytes>      similar to mount -o offset=<bytes>, mount the partition starting at <bytes>\n"
+	"    -o norecovery	    don't replay the journal (implies ro)\n"
+	"    -o fuse2fs_debug       enable fuse2fs debugging\n"
+	"\n",
+			outargs->argv[0]);
+		if (key == FUSE2FS_HELPFULL) {
+			fuse_opt_add_arg(outargs, "-ho");
+			fuse_main(outargs->argc, outargs->argv, &fs_ops, NULL);
+		} else {
+			fprintf(stderr, "Try --helpfull to get a list of "
+				"all flags, including the FUSE options.\n");
+		}
+		exit(1);
+
+	case FUSE2FS_VERSION:
+		fprintf(stderr, "fuse2fs %s (%s)\n", E2FSPROGS_VERSION,
+			E2FSPROGS_DATE);
+		fuse_opt_add_arg(outargs, "--version");
+		fuse_main(outargs->argc, outargs->argv, &fs_ops, NULL);
+		exit(0);
+	}
+	return 1;
+}
+
+int main(int argc, char *argv[])
+{
+	struct fuse_args args = FUSE_ARGS_INIT(argc, argv);
+	struct fuse2fs fctx;
+	errcode_t err;
+	char *logfile;
+	char extra_args[BUFSIZ];
+	int ret = 0;
+	int flags = EXT2_FLAG_64BITS | EXT2_FLAG_THREADS | EXT2_FLAG_EXCLUSIVE;
+
+	memset(&fctx, 0, sizeof(fctx));
+	fctx.magic = FUSE2FS_MAGIC;
+
+	fuse_opt_parse(&args, &fctx, fuse2fs_opts, fuse2fs_opt_proc);
+	if (fctx.device == NULL) {
+		fprintf(stderr, "Missing ext4 device/image\n");
+		fprintf(stderr, "See '%s -h' for usage\n", argv[0]);
+		exit(1);
+	}
+
+	if (fctx.norecovery)
+		fctx.ro = 1;
+	if (fctx.ro)
+		printf("%s", _("Mounting read-only.\n"));
+
+#ifdef ENABLE_NLS
+	setlocale(LC_MESSAGES, "");
+	setlocale(LC_CTYPE, "");
+	bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
+	textdomain(NLS_CAT_NAME);
+	set_com_err_gettext(gettext);
+#endif
+	add_error_table(&et_ext2_error_table);
+
+	/* Set up error logging */
+	logfile = getenv("FUSE2FS_LOGFILE");
+	if (logfile) {
+		fctx.err_fp = fopen(logfile, "a");
+		if (!fctx.err_fp) {
+			perror(logfile);
+			goto out;
+		}
+	} else
+		fctx.err_fp = stderr;
+
+	/* Will we allow users to allocate every last block? */
+	if (getenv("FUSE2FS_ALLOC_ALL_BLOCKS")) {
+		printf(_("%s: Allowing users to allocate all blocks. "
+		       "This is dangerous!\n"), fctx.device);
+		fctx.alloc_all_blocks = 1;
+	}
+
+	/* Start up the fs (while we still can use stdout) */
+	ret = 2;
+	if (!fctx.ro)
+		flags |= EXT2_FLAG_RW;
+	char options[50];
+	sprintf(options, "offset=%lu", fctx.offset);
+	err = ext2fs_open2(fctx.device, options, flags, 0, 0, unix_io_manager,
+			   &global_fs);
+	if (err) {
+		printf(_("%s: %s.\n"), fctx.device, error_message(err));
+		printf(_("Please run e2fsck -fy %s.\n"), fctx.device);
+		goto out;
+	}
+	fctx.fs = global_fs;
+	global_fs->priv_data = &fctx;
+
+	ret = 3;
+
+	if (ext2fs_has_feature_journal_needs_recovery(global_fs->super)) {
+		if (fctx.norecovery) {
+			printf(_("%s: mounting read-only without "
+				 "recovering journal\n"),
+			       fctx.device);
+		} else if (!fctx.ro) {
+			printf(_("%s: recovering journal\n"), fctx.device);
+			err = ext2fs_run_ext3_journal(&global_fs);
+			if (err) {
+				printf(_("%s: %s.\n"), fctx.device,
+				       error_message(err));
+				printf(_("Please run e2fsck -fy %s.\n"),
+				       fctx.device);
+				goto out;
+			}
+			ext2fs_clear_feature_journal_needs_recovery(global_fs->super);
+			ext2fs_mark_super_dirty(global_fs);
+		} else {
+			printf("%s", _("Journal needs recovery; running "
+			       "`e2fsck -E journal_only' is required.\n"));
+			goto out;
+		}
+	}
+
+	if (!fctx.ro) {
+		if (ext2fs_has_feature_journal(global_fs->super))
+			printf(_("%s: Writing to the journal is not supported.\n"),
+			       fctx.device);
+		err = ext2fs_read_inode_bitmap(global_fs);
+		if (err) {
+			translate_error(global_fs, 0, err);
+			goto out;
+		}
+		err = ext2fs_read_block_bitmap(global_fs);
+		if (err) {
+			translate_error(global_fs, 0, err);
+			goto out;
+		}
+	}
+
+	if (!(global_fs->super->s_state & EXT2_VALID_FS))
+		printf("%s", _("Warning: Mounting unchecked fs, running e2fsck "
+		       "is recommended.\n"));
+	if (global_fs->super->s_max_mnt_count > 0 &&
+	    global_fs->super->s_mnt_count >= global_fs->super->s_max_mnt_count)
+		printf("%s", _("Warning: Maximal mount count reached, running "
+		       "e2fsck is recommended.\n"));
+	if (global_fs->super->s_checkinterval > 0 &&
+	    (time_t) (global_fs->super->s_lastcheck +
+		      global_fs->super->s_checkinterval) <= time(0))
+		printf("%s", _("Warning: Check time reached; running e2fsck "
+		       "is recommended.\n"));
+	if (global_fs->super->s_last_orphan)
+		printf("%s",
+		       _("Orphans detected; running e2fsck is recommended.\n"));
+
+	if (global_fs->super->s_state & EXT2_ERROR_FS) {
+		printf("%s",
+		       _("Errors detected; running e2fsck is required.\n"));
+		goto out;
+	}
+
+	/* Initialize generation counter */
+	get_random_bytes(&fctx.next_generation, sizeof(unsigned int));
+
+	/* Set up default fuse parameters */
+	snprintf(extra_args, BUFSIZ, "-okernel_cache,subtype=ext4,use_ino,"
+		 "fsname=%s,attr_timeout=0" FUSE_PLATFORM_OPTS,
+		 fctx.device);
+	if (fctx.no_default_opts == 0)
+		fuse_opt_add_arg(&args, extra_args);
+
+	if (fctx.fakeroot) {
+#ifdef HAVE_MOUNT_NODEV
+		fuse_opt_add_arg(&args,"-onodev");
+#endif
+#ifdef HAVE_MOUNT_NOSUID
+		fuse_opt_add_arg(&args,"-onosuid");
+#endif
+	}
+
+	if (fctx.debug) {
+		int	i;
+
+		printf("fuse arguments:");
+		for (i = 0; i < args.argc; i++)
+			printf(" '%s'", args.argv[i]);
+		printf("\n");
+	}
+
+	pthread_mutex_init(&fctx.bfl, NULL);
+	fuse_main(args.argc, args.argv, &fs_ops, &fctx);
+	pthread_mutex_destroy(&fctx.bfl);
+
+	ret = 0;
+out:
+	if (global_fs) {
+		err = ext2fs_close(global_fs);
+		if (err)
+			com_err(argv[0], err, "while closing fs");
+		global_fs = NULL;
+	}
+	return ret;
+}
+
+static int __translate_error(ext2_filsys fs, errcode_t err, ext2_ino_t ino,
+			     const char *file, int line)
+{
+	struct timespec now;
+	int ret = err;
+	struct fuse2fs *ff = fs->priv_data;
+	int is_err = 0;
+
+	/* Translate ext2 error to unix error code */
+	if (err < EXT2_ET_BASE)
+		goto no_translation;
+	switch (err) {
+	case EXT2_ET_NO_MEMORY:
+	case EXT2_ET_TDB_ERR_OOM:
+		ret = -ENOMEM;
+		break;
+	case EXT2_ET_INVALID_ARGUMENT:
+	case EXT2_ET_LLSEEK_FAILED:
+		ret = -EINVAL;
+		break;
+	case EXT2_ET_NO_DIRECTORY:
+		ret = -ENOTDIR;
+		break;
+	case EXT2_ET_FILE_NOT_FOUND:
+		ret = -ENOENT;
+		break;
+	case EXT2_ET_DIR_NO_SPACE:
+		is_err = 1;
+		/* fallthrough */
+	case EXT2_ET_TOOSMALL:
+	case EXT2_ET_BLOCK_ALLOC_FAIL:
+	case EXT2_ET_INODE_ALLOC_FAIL:
+	case EXT2_ET_EA_NO_SPACE:
+		ret = -ENOSPC;
+		break;
+	case EXT2_ET_SYMLINK_LOOP:
+		ret = -EMLINK;
+		break;
+	case EXT2_ET_FILE_TOO_BIG:
+		ret = -EFBIG;
+		break;
+	case EXT2_ET_TDB_ERR_EXISTS:
+	case EXT2_ET_FILE_EXISTS:
+		ret = -EEXIST;
+		break;
+	case EXT2_ET_MMP_FAILED:
+	case EXT2_ET_MMP_FSCK_ON:
+		ret = -EBUSY;
+		break;
+	case EXT2_ET_EA_KEY_NOT_FOUND:
+#ifdef ENODATA
+		ret = -ENODATA;
+#else
+		ret = -ENOENT;
+#endif
+		break;
+	/* Sometimes fuse returns a garbage file handle pointer to us... */
+	case EXT2_ET_MAGIC_EXT2_FILE:
+		ret = -EFAULT;
+		break;
+	case EXT2_ET_UNIMPLEMENTED:
+		ret = -EOPNOTSUPP;
+		break;
+	default:
+		is_err = 1;
+		ret = -EIO;
+		break;
+	}
+
+no_translation:
+	if (!is_err)
+		return ret;
+
+	if (ino)
+		fprintf(ff->err_fp, "FUSE2FS (%s): %s (inode #%d) at %s:%d.\n",
+			fs->device_name ? fs->device_name : "???",
+			error_message(err), ino, file, line);
+	else
+		fprintf(ff->err_fp, "FUSE2FS (%s): %s at %s:%d.\n",
+			fs->device_name ? fs->device_name : "???",
+			error_message(err), file, line);
+	fflush(ff->err_fp);
+
+	/* Make a note in the error log */
+	get_now(&now);
+	fs->super->s_last_error_time = now.tv_sec;
+	fs->super->s_last_error_ino = ino;
+	fs->super->s_last_error_line = line;
+	fs->super->s_last_error_block = err; /* Yeah... */
+	strncpy((char *)fs->super->s_last_error_func, file,
+		sizeof(fs->super->s_last_error_func));
+	if (fs->super->s_first_error_time == 0) {
+		fs->super->s_first_error_time = now.tv_sec;
+		fs->super->s_first_error_ino = ino;
+		fs->super->s_first_error_line = line;
+		fs->super->s_first_error_block = err;
+		strncpy((char *)fs->super->s_first_error_func, file,
+			sizeof(fs->super->s_first_error_func));
+	}
+
+	fs->super->s_error_count++;
+	ext2fs_mark_super_dirty(fs);
+	ext2fs_flush(fs);
+	if (ff->panic_on_error)
+		abort();
+
+	return ret;
+}