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block: remove PSI accounting from the bio layer

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PSI accounting is now done by the VM code, where it should have been
since the beginning.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Link: https://lore.kernel.org/r/20220915094200.139713-6-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig
2022-09-15 10:42:00 +01:00
committed by Jens Axboe
parent 99486c511f
commit 118f3663fb
4 changed files with 0 additions and 28 deletions
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17
block/blk-core.c
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@@ -37,7 +37,6 @@
#include <linux/t10-pi.h>
#include <linux/debugfs.h>
#include <linux/bpf.h>
#include <linux/psi.h>
#include <linux/part_stat.h>
#include <linux/sched/sysctl.h>
#include <linux/blk-crypto.h>
@@ -825,22 +824,6 @@ void submit_bio(struct bio *bio)
count_vm_events(PGPGOUT, bio_sectors(bio));
}
/*
* If we're reading data that is part of the userspace workingset, count
* submission time as memory stall. When the device is congested, or
* the submitting cgroup IO-throttled, submission can be a significant
* part of overall IO time.
*/
if (unlikely(bio_op(bio) == REQ_OP_READ &&
bio_flagged(bio, BIO_WORKINGSET))) {
unsigned long pflags;
psi_memstall_enter(&pflags);
submit_bio_noacct(bio);
psi_memstall_leave(&pflags);
return;
}
submit_bio_noacct(bio);
}
EXPORT_SYMBOL(submit_bio);