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authorMike Christie <mchristi@redhat.com>2016-06-05 14:32:14 -0500
committerJens Axboe <axboe@fb.com>2016-06-07 13:41:38 -0600
commit63a4cc24867de73626e16767ce616c50dc5438d3 (patch)
tree26fc7bbcac88da1364f08b55760a82f0337328b0 /include
parentba568ea0a2ef9a193ca24874228474ec7ae2ff98 (diff)
blkg_rwstat: separate op from flags
The bio and request operation and flags are going to be separate definitions, so we cannot pass them in as a bitmap. This patch converts the blkg_rwstat code and its caller, cfq, to pass in the values separately. Signed-off-by: Mike Christie <mchristi@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'include')
-rw-r--r--include/linux/blk-cgroup.h13
1 files changed, 7 insertions, 6 deletions
diff --git a/include/linux/blk-cgroup.h b/include/linux/blk-cgroup.h
index 04f9c8d64060..f77150a4a96a 100644
--- a/include/linux/blk-cgroup.h
+++ b/include/linux/blk-cgroup.h
@@ -590,25 +590,26 @@ static inline void blkg_rwstat_exit(struct blkg_rwstat *rwstat)
/**
* blkg_rwstat_add - add a value to a blkg_rwstat
* @rwstat: target blkg_rwstat
- * @rw: mask of REQ_{WRITE|SYNC}
+ * @op: REQ_OP
+ * @op_flags: rq_flag_bits
* @val: value to add
*
* Add @val to @rwstat. The counters are chosen according to @rw. The
* caller is responsible for synchronizing calls to this function.
*/
static inline void blkg_rwstat_add(struct blkg_rwstat *rwstat,
- int rw, uint64_t val)
+ int op, int op_flags, uint64_t val)
{
struct percpu_counter *cnt;
- if (op_is_write(rw))
+ if (op_is_write(op))
cnt = &rwstat->cpu_cnt[BLKG_RWSTAT_WRITE];
else
cnt = &rwstat->cpu_cnt[BLKG_RWSTAT_READ];
__percpu_counter_add(cnt, val, BLKG_STAT_CPU_BATCH);
- if (rw & REQ_SYNC)
+ if (op_flags & REQ_SYNC)
cnt = &rwstat->cpu_cnt[BLKG_RWSTAT_SYNC];
else
cnt = &rwstat->cpu_cnt[BLKG_RWSTAT_ASYNC];
@@ -713,9 +714,9 @@ static inline bool blkcg_bio_issue_check(struct request_queue *q,
if (!throtl) {
blkg = blkg ?: q->root_blkg;
- blkg_rwstat_add(&blkg->stat_bytes, bio->bi_rw,
+ blkg_rwstat_add(&blkg->stat_bytes, bio_op(bio), bio->bi_rw,
bio->bi_iter.bi_size);
- blkg_rwstat_add(&blkg->stat_ios, bio->bi_rw, 1);
+ blkg_rwstat_add(&blkg->stat_ios, bio_op(bio), bio->bi_rw, 1);
}
rcu_read_unlock();