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authorMing Lei <ming.lei@redhat.com>2022-04-18 05:27:13 +0300
committerJens Axboe <axboe@kernel.dk>2022-04-18 15:49:52 +0300
commit5f0614a55ecebdf55f1a17db0b5f6b787ed009f1 (patch)
tree5d5de09e6c2658660bec89985daee191f83e0528 /block/blk-core.c
parentc22198e78d523c8fa079bbb70b2523bb6aa51849 (diff)
downloadlinux-5f0614a55ecebdf55f1a17db0b5f6b787ed009f1.tar.xz
block: change exported IO accounting interface from gendisk to bdev
Export IO accounting interfaces in terms of block_device now that gendisk has become more internal to block core. Rename __part_{start,end}_io_acct's first argument from part to bdev. Rename __part_{start,end}_io_acct to bdev_{start,end}_io_acct and export them. Remove disk_{start,end}_io_acct and update caller (zram) to use bdev_{start,end}_io_acct. DM can now be updated to use bdev_{start,end}_io_acct. Signed-off-by: Ming Lei <ming.lei@redhat.com> Signed-off-by: Mike Snitzer <snitzer@kernel.org> Link: https://lore.kernel.org/r/20220418022733.56168-2-snitzer@kernel.org Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-core.c')
-rw-r--r--block/blk-core.c52
1 files changed, 20 insertions, 32 deletions
diff --git a/block/blk-core.c b/block/blk-core.c
index ee18b6a699bd..f305cb66c72a 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -1022,21 +1022,22 @@ again:
}
}
-static unsigned long __part_start_io_acct(struct block_device *part,
- unsigned int sectors, unsigned int op,
- unsigned long start_time)
+unsigned long bdev_start_io_acct(struct block_device *bdev,
+ unsigned int sectors, unsigned int op,
+ unsigned long start_time)
{
const int sgrp = op_stat_group(op);
part_stat_lock();
- update_io_ticks(part, start_time, false);
- part_stat_inc(part, ios[sgrp]);
- part_stat_add(part, sectors[sgrp], sectors);
- part_stat_local_inc(part, in_flight[op_is_write(op)]);
+ update_io_ticks(bdev, start_time, false);
+ part_stat_inc(bdev, ios[sgrp]);
+ part_stat_add(bdev, sectors[sgrp], sectors);
+ part_stat_local_inc(bdev, in_flight[op_is_write(op)]);
part_stat_unlock();
return start_time;
}
+EXPORT_SYMBOL(bdev_start_io_acct);
/**
* bio_start_io_acct_time - start I/O accounting for bio based drivers
@@ -1045,8 +1046,8 @@ static unsigned long __part_start_io_acct(struct block_device *part,
*/
void bio_start_io_acct_time(struct bio *bio, unsigned long start_time)
{
- __part_start_io_acct(bio->bi_bdev, bio_sectors(bio),
- bio_op(bio), start_time);
+ bdev_start_io_acct(bio->bi_bdev, bio_sectors(bio),
+ bio_op(bio), start_time);
}
EXPORT_SYMBOL_GPL(bio_start_io_acct_time);
@@ -1058,46 +1059,33 @@ EXPORT_SYMBOL_GPL(bio_start_io_acct_time);
*/
unsigned long bio_start_io_acct(struct bio *bio)
{
- return __part_start_io_acct(bio->bi_bdev, bio_sectors(bio),
- bio_op(bio), jiffies);
+ return bdev_start_io_acct(bio->bi_bdev, bio_sectors(bio),
+ bio_op(bio), jiffies);
}
EXPORT_SYMBOL_GPL(bio_start_io_acct);
-unsigned long disk_start_io_acct(struct gendisk *disk, unsigned int sectors,
- unsigned int op)
-{
- return __part_start_io_acct(disk->part0, sectors, op, jiffies);
-}
-EXPORT_SYMBOL(disk_start_io_acct);
-
-static void __part_end_io_acct(struct block_device *part, unsigned int op,
- unsigned long start_time)
+void bdev_end_io_acct(struct block_device *bdev, unsigned int op,
+ unsigned long start_time)
{
const int sgrp = op_stat_group(op);
unsigned long now = READ_ONCE(jiffies);
unsigned long duration = now - start_time;
part_stat_lock();
- update_io_ticks(part, now, true);
- part_stat_add(part, nsecs[sgrp], jiffies_to_nsecs(duration));
- part_stat_local_dec(part, in_flight[op_is_write(op)]);
+ update_io_ticks(bdev, now, true);
+ part_stat_add(bdev, nsecs[sgrp], jiffies_to_nsecs(duration));
+ part_stat_local_dec(bdev, in_flight[op_is_write(op)]);
part_stat_unlock();
}
+EXPORT_SYMBOL(bdev_end_io_acct);
void bio_end_io_acct_remapped(struct bio *bio, unsigned long start_time,
- struct block_device *orig_bdev)
+ struct block_device *orig_bdev)
{
- __part_end_io_acct(orig_bdev, bio_op(bio), start_time);
+ bdev_end_io_acct(orig_bdev, bio_op(bio), start_time);
}
EXPORT_SYMBOL_GPL(bio_end_io_acct_remapped);
-void disk_end_io_acct(struct gendisk *disk, unsigned int op,
- unsigned long start_time)
-{
- __part_end_io_acct(disk->part0, op, start_time);
-}
-EXPORT_SYMBOL(disk_end_io_acct);
-
/**
* blk_lld_busy - Check if underlying low-level drivers of a device are busy
* @q : the queue of the device being checked