NeilBrown 64590f45dd md: make merge_bvec_fn more robust in face of personality changes.
There is no locking around calls to merge_bvec_fn(), so
it is possible that calls which coincide with a level (or personality)
change could go wrong.

So create a central dispatch point for these functions and use
rcu_read_lock().
If the array is suspended, reject any merge that can be rejected.
If not, we know it is safe to call the function.

Signed-off-by: NeilBrown <neilb@suse.de>
2015-02-04 08:35:52 +11:00
..
2014-12-14 16:10:09 -08:00
2015-01-15 15:19:10 -07:00
2015-01-23 14:08:13 -08:00
2014-12-14 16:10:09 -08:00
2014-12-14 16:10:09 -08:00
2014-12-14 16:10:09 -08:00
2014-12-14 16:43:47 -08:00
2014-12-14 16:10:09 -08:00
2014-12-14 16:10:09 -08:00
2015-01-24 14:34:54 -08:00
2014-12-17 09:59:26 -08:00
2015-01-17 08:18:08 +13:00
2014-12-17 09:59:26 -08:00
2014-12-17 10:10:51 -08:00
2015-01-24 14:34:54 -08:00
2014-12-14 16:43:47 -08:00
2015-01-14 16:27:23 -08:00
2015-01-13 15:13:45 +02:00
2014-12-14 16:43:47 -08:00
2014-12-15 18:06:13 -08:00