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-rw-r--r--fs/jfs/jfs_inode.c134
1 files changed, 134 insertions, 0 deletions
diff --git a/fs/jfs/jfs_inode.c b/fs/jfs/jfs_inode.c
new file mode 100644
index 0000000000..87594efa7f
--- /dev/null
+++ b/fs/jfs/jfs_inode.c
@@ -0,0 +1,134 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) International Business Machines Corp., 2000-2004
+ */
+
+#include <linux/fs.h>
+#include <linux/quotaops.h>
+#include "jfs_incore.h"
+#include "jfs_inode.h"
+#include "jfs_filsys.h"
+#include "jfs_imap.h"
+#include "jfs_dinode.h"
+#include "jfs_debug.h"
+
+
+void jfs_set_inode_flags(struct inode *inode)
+{
+ unsigned int flags = JFS_IP(inode)->mode2;
+ unsigned int new_fl = 0;
+
+ if (flags & JFS_IMMUTABLE_FL)
+ new_fl |= S_IMMUTABLE;
+ if (flags & JFS_APPEND_FL)
+ new_fl |= S_APPEND;
+ if (flags & JFS_NOATIME_FL)
+ new_fl |= S_NOATIME;
+ if (flags & JFS_DIRSYNC_FL)
+ new_fl |= S_DIRSYNC;
+ if (flags & JFS_SYNC_FL)
+ new_fl |= S_SYNC;
+ inode_set_flags(inode, new_fl, S_IMMUTABLE | S_APPEND | S_NOATIME |
+ S_DIRSYNC | S_SYNC);
+}
+
+/*
+ * NAME: ialloc()
+ *
+ * FUNCTION: Allocate a new inode
+ *
+ */
+struct inode *ialloc(struct inode *parent, umode_t mode)
+{
+ struct super_block *sb = parent->i_sb;
+ struct inode *inode;
+ struct jfs_inode_info *jfs_inode;
+ int rc;
+
+ inode = new_inode(sb);
+ if (!inode) {
+ jfs_warn("ialloc: new_inode returned NULL!");
+ return ERR_PTR(-ENOMEM);
+ }
+
+ jfs_inode = JFS_IP(inode);
+
+ rc = diAlloc(parent, S_ISDIR(mode), inode);
+ if (rc) {
+ jfs_warn("ialloc: diAlloc returned %d!", rc);
+ goto fail_put;
+ }
+
+ if (insert_inode_locked(inode) < 0) {
+ rc = -EINVAL;
+ goto fail_put;
+ }
+
+ inode_init_owner(&nop_mnt_idmap, inode, parent, mode);
+ /*
+ * New inodes need to save sane values on disk when
+ * uid & gid mount options are used
+ */
+ jfs_inode->saved_uid = inode->i_uid;
+ jfs_inode->saved_gid = inode->i_gid;
+
+ /*
+ * Allocate inode to quota.
+ */
+ rc = dquot_initialize(inode);
+ if (rc)
+ goto fail_drop;
+ rc = dquot_alloc_inode(inode);
+ if (rc)
+ goto fail_drop;
+
+ /* inherit flags from parent */
+ jfs_inode->mode2 = JFS_IP(parent)->mode2 & JFS_FL_INHERIT;
+
+ if (S_ISDIR(mode)) {
+ jfs_inode->mode2 |= IDIRECTORY;
+ jfs_inode->mode2 &= ~JFS_DIRSYNC_FL;
+ }
+ else {
+ jfs_inode->mode2 |= INLINEEA | ISPARSE;
+ if (S_ISLNK(mode))
+ jfs_inode->mode2 &= ~(JFS_IMMUTABLE_FL|JFS_APPEND_FL);
+ }
+ jfs_inode->mode2 |= inode->i_mode;
+
+ inode->i_blocks = 0;
+ inode->i_mtime = inode->i_atime = inode_set_ctime_current(inode);
+ jfs_inode->otime = inode_get_ctime(inode).tv_sec;
+ inode->i_generation = JFS_SBI(sb)->gengen++;
+
+ jfs_inode->cflag = 0;
+
+ /* Zero remaining fields */
+ memset(&jfs_inode->acl, 0, sizeof(dxd_t));
+ memset(&jfs_inode->ea, 0, sizeof(dxd_t));
+ jfs_inode->next_index = 0;
+ jfs_inode->acltype = 0;
+ jfs_inode->btorder = 0;
+ jfs_inode->btindex = 0;
+ jfs_inode->bxflag = 0;
+ jfs_inode->blid = 0;
+ jfs_inode->atlhead = 0;
+ jfs_inode->atltail = 0;
+ jfs_inode->xtlid = 0;
+ jfs_set_inode_flags(inode);
+
+ jfs_info("ialloc returns inode = 0x%p", inode);
+
+ return inode;
+
+fail_drop:
+ dquot_drop(inode);
+ inode->i_flags |= S_NOQUOTA;
+ clear_nlink(inode);
+ discard_new_inode(inode);
+ return ERR_PTR(rc);
+
+fail_put:
+ iput(inode);
+ return ERR_PTR(rc);
+}