linux/drivers/md/bcache
Eric Wheeler 07cc6ef8ed bcache: fix race of writeback thread starting before complete initialization
The bch_writeback_thread might BUG_ON in read_dirty() if
dc->sb==BDEV_STATE_DIRTY and bch_sectors_dirty_init has not yet completed
its related initialization.  This patch downs the dc->writeback_lock until
after initialization is complete, thus preventing bch_writeback_thread
from proceeding prematurely.

See this thread:
  http://thread.gmane.org/gmane.linux.kernel.bcache.devel/3453

Signed-off-by: Eric Wheeler <bcache@linux.ewheeler.net>
Tested-by: Marc MERLIN <marc@merlins.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Jens Axboe <axboe@fb.com>
2016-03-08 09:17:30 -07:00
..
alloc.c bcache allocator: send discards with correct size 2014-08-04 15:23:03 -07:00
bcache.h bcache: remove driver private bio splitting code 2015-08-13 12:31:40 -06:00
bset.c bcache: Allocate bounce buffers with GFP_NOWAIT 2014-08-04 15:23:03 -07:00
bset.h bcache: fix typo in bch_bkey_equal_header 2014-08-04 15:23:03 -07:00
btree.c bcache: Add a cond_resched() call to gc 2015-12-30 20:23:06 -07:00
btree.h bcache: try to set b->parent properly 2014-08-04 15:23:04 -07:00
closure.c bcache: Really show state of work pending bit 2015-11-06 15:06:05 +01:00
closure.h block: add a bi_error field to struct bio 2015-07-29 08:55:15 -06:00
debug.c bcache: Convert debug code to btree_keys 2014-01-08 13:05:13 -08:00
debug.h bcache: Convert debug code to btree_keys 2014-01-08 13:05:13 -08:00
extents.c bcache: Fix a journal replay bug 2014-08-04 15:23:02 -07:00
extents.h bcache: Fix a journal replay bug 2014-08-04 15:23:02 -07:00
io.c bcache: remove driver private bio splitting code 2015-08-13 12:31:40 -06:00
journal.c bcache: remove driver private bio splitting code 2015-08-13 12:31:40 -06:00
journal.h bcache: Fix a shutdown bug 2014-02-25 18:42:49 -08:00
Kconfig bcache: Kill dead cgroup code 2014-03-18 12:22:35 -07:00
Makefile bcache: Abstract out stuff needed for sorting 2014-01-08 13:05:12 -08:00
movinggc.c block: add a bi_error field to struct bio 2015-07-29 08:55:15 -06:00
request.c block: change ->make_request_fn() and users to return a queue cookie 2015-11-07 10:40:46 -07:00
request.h bcache: Kill dead cgroup code 2014-03-18 12:22:35 -07:00
stats.c bcache: Kill dead cgroup code 2014-03-18 12:22:35 -07:00
stats.h bcache: Break up struct search 2013-11-10 21:56:32 -08:00
super.c bcache: fix race of writeback thread starting before complete initialization 2016-03-08 09:17:30 -07:00
sysfs.c bcache: remove nested function usage 2014-03-18 12:39:28 -07:00
sysfs.h bcache: Don't export utility code, prefix with bch_ 2013-03-28 12:50:55 -06:00
trace.c bcache: Better alloc tracepoints 2014-03-18 12:22:35 -07:00
util.c md: more open-coded offset_in_page() 2016-01-04 10:29:12 -05:00
util.h bcache: remove driver private bio splitting code 2015-08-13 12:31:40 -06:00
writeback.c bcache: Change refill_dirty() to always scan entire disk if necessary 2015-12-30 20:23:16 -07:00
writeback.h bcache: prevent crash on changing writeback_running 2015-12-30 20:23:14 -07:00