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| author | Andrew Price <anprice@redhat.com> | 2015-09-23 16:45:43 +0300 |
|---|---|---|
| committer | Bob Peterson <rpeterso@redhat.com> | 2015-09-23 16:45:43 +0300 |
| commit | 6de20eb0dee4c802d9d228d6c08d00386e172e52 (patch) | |
| tree | 0cb2d63548aee11bcf8204cedba10eef06b0ede1 /fs/gfs2 | |
| parent | 4b813f09405823dcbb27a434f6ddcd1741e55e9b (diff) | |
| download | linux-6de20eb0dee4c802d9d228d6c08d00386e172e52.tar.xz | |
GFS2: Set s_mode before parsing mount options
In the generic mount_bdev() function, deactivate_locked_super() is
called after the fill_super() call fails, at which point s_mode has been
set. kill_block_super() expects this and dumps a warning when
FMODE_EXCL is not set in s_mode.
In gfs2_mount() we call deactivate_locked_super() on failure of
gfs2_mount_args(), at which point s_mode has not yet been set. This
causes kill_block_super() to dump a stack trace when gfs2 fails to mount
with invalid options. Set s_mode earlier in gfs2_mount() to avoid that.
Signed-off-by: Andrew Price <anprice@redhat.com>
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Diffstat (limited to 'fs/gfs2')
| -rw-r--r-- | fs/gfs2/ops_fstype.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c index 02586e7eb964..baab99b69d8a 100644 --- a/fs/gfs2/ops_fstype.c +++ b/fs/gfs2/ops_fstype.c @@ -1291,6 +1291,9 @@ static struct dentry *gfs2_mount(struct file_system_type *fs_type, int flags, up_write(&s->s_umount); blkdev_put(bdev, mode); down_write(&s->s_umount); + } else { + /* s_mode must be set before deactivate_locked_super calls */ + s->s_mode = mode; } memset(&args, 0, sizeof(args)); @@ -1314,7 +1317,6 @@ static struct dentry *gfs2_mount(struct file_system_type *fs_type, int flags, } else { char b[BDEVNAME_SIZE]; - s->s_mode = mode; strlcpy(s->s_id, bdevname(bdev, b), sizeof(s->s_id)); sb_set_blocksize(s, block_size(bdev)); error = fill_super(s, &args, flags & MS_SILENT ? 1 : 0); |