Hi Linus,
Jan reported a problem this morning with a crash in blk-mq, and after
looking over the recent changes, it's obvious that the blk-mq-tag
waitqueue handling change is buggy. We could end up _not_ doing
finish_wait() before switching to a new waitqueue, thus corrupting the
wait task list.
Please pull this one revert of the problematic change, thanks!
git://git.kernel.dk/linux-block.git for-linus
for you to fetch changes up to 35d37c66356eed46700e0d5db87211844d43a241:
Revert "blk-mq: Micro-optimize bt_get()" (2014-12-15 08:30:26 -0700)
----------------------------------------------------------------
Jens Axboe (1):
Revert "blk-mq: Micro-optimize bt_get()"
block/blk-mq-tag.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
--
Jens Axboe
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