From 35c80422afc8394d1ecbab3c0b17fcd539e4e5c2 Mon Sep 17 00:00:00 2001 From: Nigel Cunningham Date: Fri, 3 Feb 2012 19:59:41 +1100 Subject: PM / Sleep: JBD and JBD2 missing set_freezable() With the latest and greatest changes to the freezer, I started seeing panics that were caused by jbd2 running post-process freezing and hitting the canary BUG_ON for non-TuxOnIce I/O submission. I've traced this back to a lack of set_freezable calls in both jbd and jbd2. Since they're clearly meant to be frozen (there are tests for freezing()), I submit the following patch to add the missing calls. Signed-off-by: Nigel Cunningham Acked-by: Jan Kara Signed-off-by: Rafael J. Wysocki --- fs/jbd/journal.c | 2 ++ fs/jbd2/journal.c | 2 ++ 2 files changed, 4 insertions(+) diff --git a/fs/jbd/journal.c b/fs/jbd/journal.c index 59c09f9541b5..89cd985aee06 100644 --- a/fs/jbd/journal.c +++ b/fs/jbd/journal.c @@ -129,6 +129,8 @@ static int kjournald(void *arg) setup_timer(&journal->j_commit_timer, commit_timeout, (unsigned long)current); + set_freezable(); + /* Record that the journal thread is running */ journal->j_task = current; wake_up(&journal->j_wait_done_commit); diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c index c0a5f9f1b127..663e47cbaa78 100644 --- a/fs/jbd2/journal.c +++ b/fs/jbd2/journal.c @@ -139,6 +139,8 @@ static int kjournald2(void *arg) setup_timer(&journal->j_commit_timer, commit_timeout, (unsigned long)current); + set_freezable(); + /* Record that the journal thread is running */ journal->j_task = current; wake_up(&journal->j_wait_done_commit); -- cgit v1.2.3