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authorDamien Le Moal <damien.lemoal@wdc.com>2018-11-20 10:52:34 +0900
committerJens Axboe <axboe@kernel.dk>2018-11-19 19:03:44 -0700
commite2b3fa5af70c1e646270f6c7c799414f5e904d7a (patch)
treec4a2a5236528e6b4efe8537328e1d9647b84795d /block/bio.c
parent23464f8c3407b83106463999b64fe10dc66ff6a3 (diff)
downloadlinux-e2b3fa5af70c1e646270f6c7c799414f5e904d7a.tar.bz2
block: Remove bio->bi_ioc
bio->bi_ioc is never set so always NULL. Remove references to it in bio_disassociate_task() and in rq_ioc() and delete this field from struct bio. With this change, rq_ioc() always returns current->io_context without the need for a bio argument. Further simplify the code and make it more readable by also removing this helper, which also allows to simplify blk_mq_sched_assign_ioc() by removing its bio argument. Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Reviewed-by: Adam Manzanares <adam.manzanares@wdc.com> Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/bio.c')
-rw-r--r--block/bio.c4
1 files changed, 0 insertions, 4 deletions
diff --git a/block/bio.c b/block/bio.c
index 4f4d9884443b..03895cc0d74a 100644
--- a/block/bio.c
+++ b/block/bio.c
@@ -2027,10 +2027,6 @@ int bio_associate_blkg(struct bio *bio, struct blkcg_gq *blkg)
*/
void bio_disassociate_task(struct bio *bio)
{
- if (bio->bi_ioc) {
- put_io_context(bio->bi_ioc);
- bio->bi_ioc = NULL;
- }
if (bio->bi_css) {
css_put(bio->bi_css);
bio->bi_css = NULL;