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authorMikulas Patocka <mpatocka@redhat.com>2009-12-10 23:51:57 +0000
committerAlasdair G Kergon <agk@redhat.com>2009-12-10 23:51:57 +0000
commit952b355760c196ec014dd0b6878f85a11496e3da (patch)
tree0a6907fa6dce2bac8afdc2efea774f19bdbb9a17 /drivers/md/dm.h
parent542da317668c35036e8471822a564b609d05af66 (diff)
downloadlinux-952b355760c196ec014dd0b6878f85a11496e3da.tar.bz2
dm io: use slab for struct io
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>
Diffstat (limited to 'drivers/md/dm.h')
-rw-r--r--drivers/md/dm.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/md/dm.h b/drivers/md/dm.h
index a7663eba17e2..4a95e8fa3607 100644
--- a/drivers/md/dm.h
+++ b/drivers/md/dm.h
@@ -118,6 +118,9 @@ int dm_lock_for_deletion(struct mapped_device *md);
void dm_kobject_uevent(struct mapped_device *md, enum kobject_action action,
unsigned cookie);
+int dm_io_init(void);
+void dm_io_exit(void);
+
int dm_kcopyd_init(void);
void dm_kcopyd_exit(void);