linux-kernel - [PATCH 3/4] fs: expose utimes

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Date:   Wed, 15 Jul 2020 08:54:33 +0200
From:   Christoph Hellwig <hch@....de>
To:     Al Viro <viro@...iv.linux.org.uk>,
        Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 3/4] fs: expose utimes_common

Rename utimes_common to vfs_utimes and make it available outside of
utimes.c.  This will be used by the initramfs unpacking code.

Signed-off-by: Christoph Hellwig <hch@....de>
---
 fs/utimes.c        | 6 +++---
 include/linux/fs.h | 1 +
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/fs/utimes.c b/fs/utimes.c
index 441c7fb54053ca..12dba0741e1a71 100644
--- a/fs/utimes.c
+++ b/fs/utimes.c
@@ -16,7 +16,7 @@ static bool nsec_valid(long nsec)
 	return nsec >= 0 && nsec <= 999999999;
 }
 
-static int utimes_common(const struct path *path, struct timespec64 *times)
+int vfs_utimes(const struct path *path, struct timespec64 *times)
 {
 	int error;
 	struct iattr newattrs;
@@ -94,7 +94,7 @@ static int do_utimes_path(int dfd, const char __user *filename,
 	if (error)
 		return error;
 
-	error = utimes_common(&path, times);
+	error = vfs_utimes(&path, times);
 	path_put(&path);
 	if (retry_estale(error, lookup_flags)) {
 		lookup_flags |= LOOKUP_REVAL;
@@ -115,7 +115,7 @@ static int do_utimes_fd(int fd, struct timespec64 *times, int flags)
 	f = fdget(fd);
 	if (!f.file)
 		return -EBADF;
-	error = utimes_common(&f.file->f_path, times);
+	error = vfs_utimes(&f.file->f_path, times);
 	fdput(f);
 	return error;
 }
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 635086726f2053..a1d2685a487868 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1746,6 +1746,7 @@ int vfs_mkobj(struct dentry *, umode_t,
 
 int vfs_fchown(struct file *file, uid_t user, gid_t group);
 int vfs_fchmod(struct file *file, umode_t mode);
+int vfs_utimes(const struct path *path, struct timespec64 *times);
 
 extern long vfs_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
 
-- 
2.27.0