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