diff options
| author | Andreas Gruenbacher <agruenba@redhat.com> | 2020-06-10 18:31:56 +0200 |
|---|---|---|
| committer | Andreas Gruenbacher <agruenba@redhat.com> | 2020-06-30 13:04:45 +0200 |
| commit | 34244d711dea568f4a42c5b0d6b3d620f8cb6971 (patch) | |
| tree | 137ff7207b0d91d4d6988d92605cfb2124bf7f62 | |
| parent | 58e08e8d83ab03a1ca25d53420bd0b87f2dfe458 (diff) | |
gfs2: Don't sleep during glock hash walk
In flush_delete_work, instead of flushing each individual pending
delayed work item, cancel and re-queue them for immediate execution.
The waiting isn't needed here because we're already waiting for all
queued work items to complete in gfs2_flush_delete_work. This makes the
code more efficient, but more importantly, it avoids sleeping during a
rhashtable walk, inside rcu_read_lock().
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
| -rw-r--r-- | fs/gfs2/glock.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c index 2299dcc417ea..8545024a1401 100644 --- a/fs/gfs2/glock.c +++ b/fs/gfs2/glock.c @@ -1899,7 +1899,10 @@ bool gfs2_delete_work_queued(const struct gfs2_glock *gl) static void flush_delete_work(struct gfs2_glock *gl) { - flush_delayed_work(&gl->gl_delete); + if (cancel_delayed_work(&gl->gl_delete)) { + queue_delayed_work(gfs2_delete_workqueue, + &gl->gl_delete, 0); + } gfs2_glock_queue_work(gl, 0); } |