dm io: use slab for struct io

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Allocate "struct io" from a slab.

This patch changes dm-io, so that "struct io" is allocated from a slab cache.
It used to be allocated with kmalloc. Allocating from a slab will be needed
for the next patch, because it requires a special alignment of "struct io"
and kmalloc cannot meet this alignment.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>

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This commit is contained in:

Mikulas Patocka 2009-12-10 23:51:57 +00:00 • committed by Alasdair G Kergon

parent 542da31766

commit 952b355760

3 changed files with 25 additions and 1 deletions

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21

drivers/md/dm-io.c

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2

drivers/md/dm.c

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3

drivers/md/dm.h

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