dm: merge pushback and deferred bio lists
commit022c261100e15652d720395b17ce76304fb2f97f
authorMikulas Patocka <mpatocka@redhat.com>
Thu, 2 Apr 2009 18:55:39 +0000 (2 19:55 +0100)
committerAlasdair G Kergon <agk@redhat.com>
Thu, 2 Apr 2009 18:55:39 +0000 (2 19:55 +0100)
treecbab417b11242d4561ba45e60b3838f1672013cb
parent401600dfd368305e641d79db16d514f55c084544
dm: merge pushback and deferred bio lists

Merge pushback and deferred lists into one list - use deferred list
for both deferred and pushed-back bios.

This will be needed for proper support of barrier bios: it is impossible to
support ordering correctly with two lists because the requests on both lists
will be mixed up.

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