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authorAlasdair G Kergon <agk@redhat.com>2009-06-22 10:12:21 +0100
committerAlasdair G Kergon <agk@redhat.com>2009-06-22 10:12:21 +0100
commit9015df24a8008d7bea2bd3df881783ebe0dcb9af (patch)
treeaff9a824a202525036d5f2dc52ad728dc9a38cbd /drivers/md
parentf9ab94cee313746573b2d693bc2afb807ebb0998 (diff)
dm: initialise tio in alloc_tio
Move repeated dm_target_io initialisation inside alloc_tio(). Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Diffstat (limited to 'drivers/md')
-rw-r--r--drivers/md/dm.c33
1 files changed, 15 insertions, 18 deletions
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index badb7519ccc..edf9f246769 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -391,11 +391,6 @@ static void free_io(struct mapped_device *md, struct dm_io *io)
mempool_free(io, md->io_pool);
}
-static struct dm_target_io *alloc_tio(struct mapped_device *md)
-{
- return mempool_alloc(md->tio_pool, GFP_NOIO);
-}
-
static void free_tio(struct mapped_device *md, struct dm_target_io *tio)
{
mempool_free(tio, md->tio_pool);
@@ -750,16 +745,24 @@ static struct bio *clone_bio(struct bio *bio, sector_t sector,
return clone;
}
-static void __flush_target(struct clone_info *ci, struct dm_target *ti,
- unsigned flush_nr)
+static struct dm_target_io *alloc_tio(struct clone_info *ci,
+ struct dm_target *ti)
{
- struct dm_target_io *tio = alloc_tio(ci->md);
- struct bio *clone;
+ struct dm_target_io *tio = mempool_alloc(ci->md->tio_pool, GFP_NOIO);
tio->io = ci->io;
tio->ti = ti;
-
memset(&tio->info, 0, sizeof(tio->info));
+
+ return tio;
+}
+
+static void __flush_target(struct clone_info *ci, struct dm_target *ti,
+ unsigned flush_nr)
+{
+ struct dm_target_io *tio = alloc_tio(ci, ti);
+ struct bio *clone;
+
tio->info.flush_request = flush_nr;
clone = bio_alloc_bioset(GFP_NOIO, 0, ci->md->bs);
@@ -803,10 +806,7 @@ static int __clone_and_map(struct clone_info *ci)
/*
* Allocate a target io object.
*/
- tio = alloc_tio(ci->md);
- tio->io = ci->io;
- tio->ti = ti;
- memset(&tio->info, 0, sizeof(tio->info));
+ tio = alloc_tio(ci, ti);
if (ci->sector_count <= max) {
/*
@@ -862,10 +862,7 @@ static int __clone_and_map(struct clone_info *ci)
max = max_io_len(ci->md, ci->sector, ti);
- tio = alloc_tio(ci->md);
- tio->io = ci->io;
- tio->ti = ti;
- memset(&tio->info, 0, sizeof(tio->info));
+ tio = alloc_tio(ci, ti);
}
len = min(remaining, max);