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bcachefs: Add a kthread_should_stop() check to allocator thread

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Turns out it's possible during shutdown for the allocator to get stuck
spinning on bch2_invalidate_buckets() without hitting any of the other
checks.

Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2020-06-17 18:20:26 -04:00 committed by Kent Overstreet
parent a34782a066
commit eff508b459
1 changed files with 2 additions and 0 deletions
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2
fs/bcachefs/alloc_background.c
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@ -1104,6 +1104,8 @@ static int bch2_allocator_thread(void *arg)
while (1) {
cond_resched();
if (kthread_should_stop())
break;
pr_debug("discarding %zu invalidated buckets",
fifo_used(&ca->free_inc));