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| author | Bob Peterson <rpeterso@redhat.com> | 2021-03-25 08:51:13 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-04-16 11:59:11 +0200 |
| commit | 9217411e2c40a9e08721937753140849107d921d (patch) | |
| tree | f3937b94ab7630faa3568d064b6e3a5aa8731b0f | |
| parent | 290b4b93c1940b999d03fef13b4ed8ca51356de1 (diff) | |
| download | linux-stable-9217411e2c40a9e08721937753140849107d921d.tar.gz linux-stable-9217411e2c40a9e08721937753140849107d921d.tar.bz2 linux-stable-9217411e2c40a9e08721937753140849107d921d.zip | |
gfs2: report "already frozen/thawed" errors
[ Upstream commit ff132c5f93c06bd4432bbab5c369e468653bdec4 ]
Before this patch, gfs2's freeze function failed to report an error
when the target file system was already frozen as it should (and as
generic vfs function freeze_super does. Similarly, gfs2's thaw function
failed to report an error when trying to thaw a file system that is not
frozen, as vfs function thaw_super does. The errors were checked, but
it always returned a 0 return code.
This patch adds the missing error return codes to gfs2 freeze and thaw.
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | fs/gfs2/super.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c index 37496d83661a..ef401aecaa2c 100644 --- a/fs/gfs2/super.c +++ b/fs/gfs2/super.c @@ -986,11 +986,13 @@ void gfs2_freeze_func(struct work_struct *work) static int gfs2_freeze(struct super_block *sb) { struct gfs2_sbd *sdp = sb->s_fs_info; - int error = 0; + int error; mutex_lock(&sdp->sd_freeze_mutex); - if (atomic_read(&sdp->sd_freeze_state) != SFS_UNFROZEN) + if (atomic_read(&sdp->sd_freeze_state) != SFS_UNFROZEN) { + error = -EBUSY; goto out; + } if (test_bit(SDF_SHUTDOWN, &sdp->sd_flags)) { error = -EINVAL; @@ -1032,10 +1034,10 @@ static int gfs2_unfreeze(struct super_block *sb) struct gfs2_sbd *sdp = sb->s_fs_info; mutex_lock(&sdp->sd_freeze_mutex); - if (atomic_read(&sdp->sd_freeze_state) != SFS_FROZEN || + if (atomic_read(&sdp->sd_freeze_state) != SFS_FROZEN || !gfs2_holder_initialized(&sdp->sd_freeze_gh)) { mutex_unlock(&sdp->sd_freeze_mutex); - return 0; + return -EINVAL; } gfs2_glock_dq_uninit(&sdp->sd_freeze_gh); |