dm: rework queueing and suspension
authorMikulas Patocka <mpatocka@redhat.com>
Wed, 8 Apr 2009 23:27:15 +0000 (00:27 +0100)
committerAlasdair G Kergon <agk@redhat.com>
Wed, 8 Apr 2009 23:27:15 +0000 (00:27 +0100)
commit3b00b2036fac7a7667d0676a0f80eee575b8c32b
treecd893a75900ee81550230711ea4a0005a6f2c2ce
parent54d9a1b4513b96cbd835ca6866c6a604d194b2ae
dm: rework queueing and suspension

Rework shutting down on suspend and document the associated rules.

Drop write lock in __split_and_process_bio to allow more processing
concurrency.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
drivers/md/dm.c