diff options
| 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/md/dm-io.c | |
| 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/md/dm-io.c')
| -rw-r--r-- | drivers/md/dm-io.c | 11 |
1 files changed, 0 insertions, 11 deletions
diff --git a/drivers/md/dm-io.c b/drivers/md/dm-io.c index ea5dd289fe2a..1c46f97d6664 100644 --- a/drivers/md/dm-io.c +++ b/drivers/md/dm-io.c @@ -249,16 +249,6 @@ static void vm_dp_init(struct dpages *dp, void *data) dp->context_ptr = data; } -static void dm_bio_destructor(struct bio *bio) -{ - unsigned region; - struct io *io; - - retrieve_io_and_region_from_bio(bio, &io, ®ion); - - bio_free(bio, io->client->bios); -} - /* * Functions for getting the pages from kernel memory. */ @@ -317,7 +307,6 @@ static void do_region(int rw, unsigned region, struct dm_io_region *where, bio->bi_sector = where->sector + (where->count - remaining); bio->bi_bdev = where->bdev; bio->bi_end_io = endio; - bio->bi_destructor = dm_bio_destructor; store_io_and_region_in_bio(bio, io, region); if (rw & REQ_DISCARD) { |
