All callers of dquot_scan_active() now hold s_umount so we can rely on
that lock to protect us against quota state changes.
Signed-off-by: Jan Kara <j...@suse.cz>
---
fs/quota/dquot.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
index 2a9dc3fb491c..d91aecc939c9 100644
--- a/fs/quota/dquot.c
+++ b/fs/quota/dquot.c
@@ -572,7 +572,8 @@ int dquot_scan_active(struct super_block *sb,
struct dquot *dquot, *old_dquot = NULL;
int ret = 0;
- mutex_lock(&sb_dqopt(sb)->dqonoff_mutex);
+ WARN_ON_ONCE(!rwsem_is_locked(&sb->s_umount));
+
spin_lock(&dq_list_lock);
list_for_each_entry(dquot, &inuse_list, dq_inuse) {
if (!test_bit(DQ_ACTIVE_B, &dquot->dq_flags))
@@ -603,7 +604,6 @@ int dquot_scan_active(struct super_block *sb,
spin_unlock(&dq_list_lock);
out:
dqput(old_dquot);
- mutex_unlock(&sb_dqopt(sb)->dqonoff_mutex);
return ret;
}
EXPORT_SYMBOL(dquot_scan_active);
--
2.6.6
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