fs: implement vfs_stat and vfs_lstat in terms of vfs_fstatat (0b2c6693) · Commits · 戴 / test

include/linux/fs.h

+7 −9

Original line number	Diff line number	Diff line
		@@ -3165,21 +3165,19 @@ extern int iterate_dir(struct file , struct dir_context );
		extern int vfs_statx(int, const char __user , int, struct kstat , u32);
		int vfs_fstat(int fd, struct kstat *stat);

		static inline int vfs_stat(const char __user filename, struct kstat stat)
		static inline int vfs_fstatat(int dfd, const char __user *filename,
		struct kstat *stat, int flags)
		{
		return vfs_statx(AT_FDCWD, filename, AT_NO_AUTOMOUNT,
		return vfs_statx(dfd, filename, flags \| AT_NO_AUTOMOUNT,
		stat, STATX_BASIC_STATS);
		}
		static inline int vfs_lstat(const char __user name, struct kstat stat)
		static inline int vfs_stat(const char __user filename, struct kstat stat)
		{
		return vfs_statx(AT_FDCWD, name, AT_SYMLINK_NOFOLLOW \| AT_NO_AUTOMOUNT,
		stat, STATX_BASIC_STATS);
		return vfs_fstatat(AT_FDCWD, filename, stat, 0);
		}
		static inline int vfs_fstatat(int dfd, const char __user *filename,
		struct kstat *stat, int flags)
		static inline int vfs_lstat(const char __user name, struct kstat stat)
		{
		return vfs_statx(dfd, filename, flags \| AT_NO_AUTOMOUNT,
		stat, STATX_BASIC_STATS);
		return vfs_fstatat(AT_FDCWD, name, stat, AT_SYMLINK_NOFOLLOW);
		}

		extern const char vfs_get_link(struct dentry , struct delayed_call *);