[PATCH 20/24] fs: implement vfs_stat and vfs_lstat in terms of vfs_fstatat
From: Christoph Hellwig <hch@lst.de>
Date: 2020-07-20 16:27:32
Also in:
linux-fsdevel, linux-raid, lkml
Subsystem:
filesystems (vfs and infrastructure), the rest · Maintainers:
Alexander Viro, Christian Brauner, Linus Torvalds
Go through vfs_fstatat instead of duplicating the *stat to statx mapping three times. Signed-off-by: Christoph Hellwig <hch@lst.de> --- include/linux/fs.h | 16 +++++++--------- 1 file changed, 7 insertions(+), 9 deletions(-)
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 0169d3efa844d0..4d9d33c62fa2e5 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h@@ -3299,21 +3299,19 @@ 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 *);
--
2.27.0