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authorJens Axboe <axboe@kernel.dk>2018-05-09 13:12:10 -0600
committerJens Axboe <axboe@kernel.dk>2018-05-10 11:27:17 -0600
commit55141366de8cb281ee6730a810c7602dee403e92 (patch)
tree388c1a5534d7153afde5e97251f94bbae540a74e /block/bfq-iosched.c
parent17a511993225ff7c1e2af182c0720bb4d31c7d3a (diff)
downloadlinux-0-day-55141366de8cb281ee6730a810c7602dee403e92.tar.gz
bfq-iosched: don't worry about reserved tags in limit_depth
Reserved tags are used for error handling, we don't need to care about them for regular IO. The core won't call us for these anyway. Acked-by: Paolo Valente <paolo.valente@linaro.org> Reviewed-by: Omar Sandoval <osandov@fb.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/bfq-iosched.c')
-rw-r--r--block/bfq-iosched.c9
1 files changed, 1 insertions, 8 deletions
diff --git a/block/bfq-iosched.c b/block/bfq-iosched.c
index eefd8a4..db38e88 100644
--- a/block/bfq-iosched.c
+++ b/block/bfq-iosched.c
@@ -542,14 +542,7 @@ static void bfq_limit_depth(unsigned int op, struct blk_mq_alloc_data *data)
if (op_is_sync(op) && !op_is_write(op))
return;
- if (data->flags & BLK_MQ_REQ_RESERVED) {
- if (unlikely(!tags->nr_reserved_tags)) {
- WARN_ON_ONCE(1);
- return;
- }
- bt = &tags->breserved_tags;
- } else
- bt = &tags->bitmap_tags;
+ bt = &tags->bitmap_tags;
if (unlikely(bfqd->sb_shift != bt->sb.shift))
bfq_update_depths(bfqd, bt);