From: Kent Overstreet <kent.overstreet@gmail.com>
Date: Tue, 25 May 2021 22:42:05 +0000 (-0400)
Subject: bcachefs: Add a cond_resched call to the copygc main loop
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=c4d4b2f01abd95af7c6dccf236e2760aef5a9b69;p=linux.git

bcachefs: Add a cond_resched call to the copygc main loop

We seem to have a bug where the copygc thread ends up spinning and
making the system unusable - this will at least prevent it from locking
up the machine, and it's a good thing to have anyways.

Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
---

diff --git a/fs/bcachefs/movinggc.c b/fs/bcachefs/movinggc.c
index acb4d943db79e..e8f9d70af9302 100644
--- a/fs/bcachefs/movinggc.c
+++ b/fs/bcachefs/movinggc.c
@@ -317,6 +317,8 @@ static int bch2_copygc_thread(void *arg)
 	set_freezable();
 
 	while (!kthread_should_stop()) {
+		cond_resched();
+
 		if (kthread_wait_freezable(c->copy_gc_enabled))
 			break;