diff options
| author | NeilBrown <neilb@suse.de> | 2022-01-17 01:07:26 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-01-20 11:13:13 +0300 |
| commit | d5df26479c825c4891aea4ce1a518453a49ad217 (patch) | |
| tree | da7c68509a57b1d85797ccd4a82ff19bbe52eab0 /fs/super.c | |
| parent | 760a85303c5a2aeb811f92c76b8dca4c13bf3416 (diff) | |
| download | linux-d5df26479c825c4891aea4ce1a518453a49ad217.tar.xz | |
devtmpfs regression fix: reconfigure on each mount
commit a6097180d884ddab769fb25588ea8598589c218c upstream.
Prior to Linux v5.4 devtmpfs used mount_single() which treats the given
mount options as "remount" options, so it updates the configuration of
the single super_block on each mount.
Since that was changed, the mount options used for devtmpfs are ignored.
This is a regression which affect systemd - which mounts devtmpfs with
"-o mode=755,size=4m,nr_inodes=1m".
This patch restores the "remount" effect by calling reconfigure_single()
Fixes: d401727ea0d7 ("devtmpfs: don't mix {ramfs,shmem}_fill_super() with mount_single()")
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/super.c')
| -rw-r--r-- | fs/super.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/super.c b/fs/super.c index bcef3a6f4c4b..a1f82dfd1b39 100644 --- a/fs/super.c +++ b/fs/super.c @@ -1421,8 +1421,8 @@ struct dentry *mount_nodev(struct file_system_type *fs_type, } EXPORT_SYMBOL(mount_nodev); -static int reconfigure_single(struct super_block *s, - int flags, void *data) +int reconfigure_single(struct super_block *s, + int flags, void *data) { struct fs_context *fc; int ret; |