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authorAndreas Gruenbacher <agruenba@redhat.com>2023-08-25 11:18:38 +0200
committerAndreas Gruenbacher <agruenba@redhat.com>2023-09-05 15:58:17 +0200
commitfe0690f0a6f190a9ec0736c01ddeba7a729cf30d (patch)
treebe579cb6b52703667dda859700f46ff23a97d794 /fs/gfs2/quota.c
parente4a8b5481c59a3f1252f595330c2d2cd038886b2 (diff)
gfs2: Sanitize kthread stopping
Immediately stop the logd and quotad kernel threads when a filesystem withdraw is detected: those threads aren't doing anything useful after a withdraw. (Depends on the extra logd and quotad task struct references held since commit 7a109f383fa3 ("gfs2: Fix asynchronous thread destruction").) In addition, check for kthread_should_stop() in the wait condition in gfs2_quotad() to stop immediately when kthread_stop() is called. Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Diffstat (limited to 'fs/gfs2/quota.c')
-rw-r--r--fs/gfs2/quota.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c
index 5201bb403fc6..3a3189f5104a 100644
--- a/fs/gfs2/quota.c
+++ b/fs/gfs2/quota.c
@@ -1559,9 +1559,9 @@ int gfs2_quotad(void *data)
unsigned long t = 0;
while (!kthread_should_stop()) {
-
if (gfs2_withdrawn(sdp))
- goto bypass;
+ break;
+
/* Update the master statfs file */
if (sdp->sd_statfs_force_sync) {
int error = gfs2_statfs_sync(sdp->sd_vfs, 0);
@@ -1579,11 +1579,12 @@ int gfs2_quotad(void *data)
try_to_freeze();
-bypass:
t = min(quotad_timeo, statfs_timeo);
t = wait_event_interruptible_timeout(sdp->sd_quota_wait,
- sdp->sd_statfs_force_sync,
+ sdp->sd_statfs_force_sync ||
+ gfs2_withdrawn(sdp) ||
+ kthread_should_stop(),
t);
if (sdp->sd_statfs_force_sync)