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nvdimm: use bio_{start,end}_io_acct

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Switch dm to use the nicer bio accounting helpers.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig 2020-05-27 07:24:10 +02:00 committed by Jens Axboe
parent 86240d5b68
commit 0fd92f89a4
4 changed files with 12 additions and 25 deletions
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6
drivers/nvdimm/blk.c
View File

@ -178,7 +178,9 @@ static blk_qc_t nd_blk_make_request(struct request_queue *q, struct bio *bio)
bip = bio_integrity(bio);
nsblk = q->queuedata;
rw = bio_data_dir(bio);
do_acct = nd_iostat_start(bio, &start);
do_acct = blk_queue_io_stat(bio->bi_disk->queue);
if (do_acct)
start = bio_start_io_acct(bio);
bio_for_each_segment(bvec, bio, iter) {
unsigned int len = bvec.bv_len;
@ -195,7 +197,7 @@ static blk_qc_t nd_blk_make_request(struct request_queue *q, struct bio *bio)
}
}
if (do_acct)
nd_iostat_end(bio, start);
bio_end_io_acct(bio, start);
bio_endio(bio);
return BLK_QC_T_NONE;

6
drivers/nvdimm/btt.c
View File

@ -1452,7 +1452,9 @@ static blk_qc_t btt_make_request(struct request_queue *q, struct bio *bio)
if (!bio_integrity_prep(bio))
return BLK_QC_T_NONE;
do_acct = nd_iostat_start(bio, &start);
do_acct = blk_queue_io_stat(bio->bi_disk->queue);
if (do_acct)
start = bio_start_io_acct(bio);
bio_for_each_segment(bvec, bio, iter) {
unsigned int len = bvec.bv_len;
@ -1477,7 +1479,7 @@ static blk_qc_t btt_make_request(struct request_queue *q, struct bio *bio)
}
}
if (do_acct)
nd_iostat_end(bio, start);
bio_end_io_acct(bio, start);
bio_endio(bio);
return BLK_QC_T_NONE;

19
drivers/nvdimm/nd.h
View File

@ -396,25 +396,6 @@ static inline int nvdimm_setup_pfn(struct nd_pfn *nd_pfn,
#endif
int nd_blk_region_init(struct nd_region *nd_region);
int nd_region_activate(struct nd_region *nd_region);
void __nd_iostat_start(struct bio *bio, unsigned long *start);
static inline bool nd_iostat_start(struct bio *bio, unsigned long *start)
{
struct gendisk *disk = bio->bi_disk;
if (!blk_queue_io_stat(disk->queue))
return false;
*start = jiffies;
generic_start_io_acct(disk->queue, bio_op(bio), bio_sectors(bio),
&disk->part0);
return true;
}
static inline void nd_iostat_end(struct bio *bio, unsigned long start)
{
struct gendisk *disk = bio->bi_disk;
generic_end_io_acct(disk->queue, bio_op(bio), &disk->part0, start);
}
static inline bool is_bad_pmem(struct badblocks *bb, sector_t sector,
unsigned int len)
{

6
drivers/nvdimm/pmem.c
View File

@ -202,7 +202,9 @@ static blk_qc_t pmem_make_request(struct request_queue *q, struct bio *bio)
if (bio->bi_opf & REQ_PREFLUSH)
ret = nvdimm_flush(nd_region, bio);
do_acct = nd_iostat_start(bio, &start);
do_acct = blk_queue_io_stat(bio->bi_disk->queue);
if (do_acct)
start = bio_start_io_acct(bio);
bio_for_each_segment(bvec, bio, iter) {
if (op_is_write(bio_op(bio)))
rc = pmem_do_write(pmem, bvec.bv_page, bvec.bv_offset,
@ -216,7 +218,7 @@ static blk_qc_t pmem_make_request(struct request_queue *q, struct bio *bio)
}
}
if (do_acct)
nd_iostat_end(bio, start);
bio_end_io_acct(bio, start);
if (bio->bi_opf & REQ_FUA)
ret = nvdimm_flush(nd_region, bio);