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| author | Kent Overstreet <koverstreet@google.com> | 2012-09-06 15:34:55 -0700 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2012-09-09 10:35:38 +0200 |
| commit | 395c72a707d966b36d5a42fe12c3a237ded3a0d9 (patch) | |
| tree | 79e4450a4f31409815d80ee8e1a7e1490a140f22 /drivers/block | |
| parent | eeea3ac912207dcf759b95b2b4c36f96bce583bf (diff) | |
| download | blackbird-op-linux-395c72a707d966b36d5a42fe12c3a237ded3a0d9.tar.gz blackbird-op-linux-395c72a707d966b36d5a42fe12c3a237ded3a0d9.zip | |
block: Generalized bio pool freeing
With the old code, when you allocate a bio from a bio pool you have to
implement your own destructor that knows how to find the bio pool the
bio was originally allocated from.
This adds a new field to struct bio (bi_pool) and changes
bio_alloc_bioset() to use it. This makes various bio destructors
unnecessary, so they're then deleted.
v6: Explain the temporary if statement in bio_put
Signed-off-by: Kent Overstreet <koverstreet@google.com>
CC: Jens Axboe <axboe@kernel.dk>
CC: NeilBrown <neilb@suse.de>
CC: Alasdair Kergon <agk@redhat.com>
CC: Nicholas Bellinger <nab@linux-iscsi.org>
CC: Lars Ellenberg <lars.ellenberg@linbit.com>
Acked-by: Tejun Heo <tj@kernel.org>
Acked-by: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/block')
| -rw-r--r-- | drivers/block/drbd/drbd_main.c | 13 |
1 files changed, 1 insertions, 12 deletions
diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index f93a0320e952..f55683ad4ffa 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -162,23 +162,12 @@ static const struct block_device_operations drbd_ops = { .release = drbd_release, }; -static void bio_destructor_drbd(struct bio *bio) -{ - bio_free(bio, drbd_md_io_bio_set); -} - struct bio *bio_alloc_drbd(gfp_t gfp_mask) { - struct bio *bio; - if (!drbd_md_io_bio_set) return bio_alloc(gfp_mask, 1); - bio = bio_alloc_bioset(gfp_mask, 1, drbd_md_io_bio_set); - if (!bio) - return NULL; - bio->bi_destructor = bio_destructor_drbd; - return bio; + return bio_alloc_bioset(gfp_mask, 1, drbd_md_io_bio_set); } #ifdef __CHECKER__ |
