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| author |   Evgeniy Polyakov <zbr@ioremap.net> | 2009-01-19 20:20:36 +0300 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@suse.de> | 2009-04-03 14:53:33 -0700 |
| commit | 3e5510ab0cd73e37b1bf268ec1ec7a071e08a1d5 (patch) | |
| tree | c50718068f7c5d4736a571974866612f77fa9315 /drivers/staging/dst/export.c | |
| parent | Staging: dst: kconfig update. (diff) | |
| download | linux-dev-3e5510ab0cd73e37b1bf268ec1ec7a071e08a1d5.tar.xz linux-dev-3e5510ab0cd73e37b1bf268ec1ec7a071e08a1d5.zip | |
Staging: DST: optimize bio allocation.
Use bio prepend feature as suggested by Jens Axboe.
Signed-off-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/staging/dst/export.c')
| -rw-r--r-- | drivers/staging/dst/export.c | 13 |
1 files changed, 3 insertions, 10 deletions
diff --git a/drivers/staging/dst/export.c b/drivers/staging/dst/export.c index 122fe7577dcb..80ae4ebe610a 100644 --- a/drivers/staging/dst/export.c +++ b/drivers/staging/dst/export.c @@ -33,7 +33,7 @@ int __init dst_export_init(void) { int err = -ENOMEM; - dst_bio_set = bioset_create(32, 32); + dst_bio_set = bioset_create(32, sizeof(struct dst_export_priv)); if (!dst_bio_set) goto err_out_exit; @@ -424,12 +424,8 @@ static void dst_bio_destructor(struct bio *bio) __free_page(bv->bv_page); } - if (priv) { - struct dst_node *n = priv->state->node; - + if (priv) dst_state_put(priv->state); - mempool_free(priv, n->trans_pool); - } bio_free(bio, dst_bio_set); } @@ -555,11 +551,8 @@ int dst_process_io(struct dst_state *st) dst_bio_set); if (!bio) goto err_out_exit; - bio->bi_private = NULL; - priv = mempool_alloc(st->node->trans_pool, GFP_KERNEL); - if (!priv) - goto err_out_free; + priv = (struct dst_export_priv *)(((void *)bio) - sizeof (struct dst_export_priv)); priv->state = dst_state_get(st); priv->bio = bio; |