From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- fs/qnx6/qnx6.h | 136 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 136 insertions(+) create mode 100644 fs/qnx6/qnx6.h (limited to 'fs/qnx6/qnx6.h') diff --git a/fs/qnx6/qnx6.h b/fs/qnx6/qnx6.h new file mode 100644 index 000000000..34a6b126a --- /dev/null +++ b/fs/qnx6/qnx6.h @@ -0,0 +1,136 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * QNX6 file system, Linux implementation. + * + * Version : 1.0.0 + * + * History : + * + * 01-02-2012 by Kai Bankett (chaosman@ontika.net) : first release. + * 16-02-2012 page map extension by Al Viro + * + */ + +#ifdef pr_fmt +#undef pr_fmt +#endif + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include +#include + +typedef __u16 __bitwise __fs16; +typedef __u32 __bitwise __fs32; +typedef __u64 __bitwise __fs64; + +#include + +struct qnx6_sb_info { + struct buffer_head *sb_buf; /* superblock buffer */ + struct qnx6_super_block *sb; /* our superblock */ + int s_blks_off; /* blkoffset fs-startpoint */ + int s_ptrbits; /* indirect pointer bitfield */ + unsigned long s_mount_opt; /* all mount options */ + int s_bytesex; /* holds endianess info */ + struct inode * inodes; + struct inode * longfile; +}; + +struct qnx6_inode_info { + __fs32 di_block_ptr[QNX6_NO_DIRECT_POINTERS]; + __u8 di_filelevels; + __u32 i_dir_start_lookup; + struct inode vfs_inode; +}; + +extern struct inode *qnx6_iget(struct super_block *sb, unsigned ino); +extern struct dentry *qnx6_lookup(struct inode *dir, struct dentry *dentry, + unsigned int flags); + +#ifdef CONFIG_QNX6FS_DEBUG +extern void qnx6_superblock_debug(struct qnx6_super_block *, + struct super_block *); +#endif + +extern const struct inode_operations qnx6_dir_inode_operations; +extern const struct file_operations qnx6_dir_operations; + +static inline struct qnx6_sb_info *QNX6_SB(struct super_block *sb) +{ + return sb->s_fs_info; +} + +static inline struct qnx6_inode_info *QNX6_I(struct inode *inode) +{ + return container_of(inode, struct qnx6_inode_info, vfs_inode); +} + +#define clear_opt(o, opt) (o &= ~(QNX6_MOUNT_##opt)) +#define set_opt(o, opt) (o |= (QNX6_MOUNT_##opt)) +#define test_opt(sb, opt) (QNX6_SB(sb)->s_mount_opt & \ + QNX6_MOUNT_##opt) +enum { + BYTESEX_LE, + BYTESEX_BE, +}; + +static inline __u64 fs64_to_cpu(struct qnx6_sb_info *sbi, __fs64 n) +{ + if (sbi->s_bytesex == BYTESEX_LE) + return le64_to_cpu((__force __le64)n); + else + return be64_to_cpu((__force __be64)n); +} + +static inline __fs64 cpu_to_fs64(struct qnx6_sb_info *sbi, __u64 n) +{ + if (sbi->s_bytesex == BYTESEX_LE) + return (__force __fs64)cpu_to_le64(n); + else + return (__force __fs64)cpu_to_be64(n); +} + +static inline __u32 fs32_to_cpu(struct qnx6_sb_info *sbi, __fs32 n) +{ + if (sbi->s_bytesex == BYTESEX_LE) + return le32_to_cpu((__force __le32)n); + else + return be32_to_cpu((__force __be32)n); +} + +static inline __fs32 cpu_to_fs32(struct qnx6_sb_info *sbi, __u32 n) +{ + if (sbi->s_bytesex == BYTESEX_LE) + return (__force __fs32)cpu_to_le32(n); + else + return (__force __fs32)cpu_to_be32(n); +} + +static inline __u16 fs16_to_cpu(struct qnx6_sb_info *sbi, __fs16 n) +{ + if (sbi->s_bytesex == BYTESEX_LE) + return le16_to_cpu((__force __le16)n); + else + return be16_to_cpu((__force __be16)n); +} + +static inline __fs16 cpu_to_fs16(struct qnx6_sb_info *sbi, __u16 n) +{ + if (sbi->s_bytesex == BYTESEX_LE) + return (__force __fs16)cpu_to_le16(n); + else + return (__force __fs16)cpu_to_be16(n); +} + +extern struct qnx6_super_block *qnx6_mmi_fill_super(struct super_block *s, + int silent); + +static inline void qnx6_put_page(struct page *page) +{ + kunmap(page); + put_page(page); +} + +extern unsigned qnx6_find_entry(int len, struct inode *dir, const char *name, + struct page **res_page); -- cgit v1.2.3