fs: implement vfs_stat and vfs_lstat in terms of vfs_fstatat

Go through vfs_fstatat instead of duplicating the *stat to statx mapping
three times.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --git a/include/linux/fs.h b/include/linux/fs.h
index f100d9f..b43c9ad 100644 (file)
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -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 *);