tree 969ca658f41ec8a9f719a44a487ae582ee278c27
parent c897feb3dcf3c3300849056ee82b01df7bf66d3c
author Heinz Mauelshagen <hjm@redhat.com> 1178703180 -0700
committer Linus Torvalds <torvalds@woody.linux-foundation.org> 1178739047 -0700

dm io: prepare for new interface

Introduce struct dm_io_client to prepare for per-client mempools and bio_sets.

Temporary functions bios() and io_pool() choose between the per-client
structures and the global ones so the old and new interfaces can co-exist.

Make error_bits optional.

Signed-off-by: Heinz Mauelshagen <hjm@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Cc: Milan Broz <mbroz@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>