Patch "fs: add a vfs_fchmod helper" has been added to the 4.19-stable tree

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This is a note to let you know that I've just added the patch titled

    fs: add a vfs_fchmod helper

to the 4.19-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     fs-add-a-vfs_fchmod-helper.patch
and it can be found in the queue-4.19 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 9c00e35277e95503317be9db68a1c81d4972579b
Author: Christoph Hellwig <hch@xxxxxx>
Date:   Tue Jul 14 08:55:05 2020 +0200

    fs: add a vfs_fchmod helper
    
    [ Upstream commit 9e96c8c0e94eea2f69a9705f5d0f51928ea26c17 ]
    
    Add a helper for struct file based chmode operations.  To be used by
    the initramfs code soon.
    
    Signed-off-by: Christoph Hellwig <hch@xxxxxx>
    Acked-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
    Stable-dep-of: 4624b346cf67 ("init: open /initrd.image with O_LARGEFILE")
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/fs/open.c b/fs/open.c
index e072e86003f56..fc634ab5af0d6 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -569,14 +569,19 @@ static int chmod_common(const struct path *path, umode_t mode)
 	return error;
 }
 
+int vfs_fchmod(struct file *file, umode_t mode)
+{
+	audit_file(file);
+	return chmod_common(&file->f_path, mode);
+}
+
 int ksys_fchmod(unsigned int fd, umode_t mode)
 {
 	struct fd f = fdget(fd);
 	int err = -EBADF;
 
 	if (f.file) {
-		audit_file(f.file);
-		err = chmod_common(&f.file->f_path, mode);
+		err = vfs_fchmod(f.file, mode);
 		fdput(f);
 	}
 	return err;
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 7d93d22ad1062..95e35e0740117 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1661,6 +1661,7 @@ int vfs_mkobj(struct dentry *, umode_t,
 		void *);
 
 int vfs_fchown(struct file *file, uid_t user, gid_t group);
+int vfs_fchmod(struct file *file, umode_t mode);
 
 extern long vfs_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
 




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