Johannes Weiner
0b0803a0ea
BACKPORT: block: annotate refault stalls from IO submission ...
psi tracks the time tasks wait for refaulting pages to become
uptodate, but it does not track the time spent submitting the IO. The
submission part can be significant if backing storage is contended or
when cgroup throttling (io.latency) is in effect - a lot of time is
spent in submit_bio(). In that case, we underreport memory pressure.
Annotate submit_bio() to account submission time as memory stall when
the bio is reading userspace workingset pages.
Tested-by: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
(cherry picked from commit b8e24a9300b0836a9d39f6b20746766b3b81f1bd)
Conflicts:
include/linux/blk_types.h
block/bio.c
(1. Manually resolved BIO_WORKINGSET being definition instead of enum.
2. Add bio_set_flag call into bio_add_page instead of not yet existing
__bio_add_page)
Bug: 141131229
Test: boot and run act test suite
Change-Id: I99cef039844e219f1dc8196feead54b6f5fb26bb
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
2019-10-04 11:09:46 -07:00
partitions/aix: fix usage of uninitialized lv_info and lvname structures
2018-09-19 22:47:15 +02:00
badblocks: fix wrong return value in badblocks_set if badblocks are disabled
2017-12-20 10:07:29 +01:00
bio-integrity: Do not allocate integrity context for bio w/o data
2018-04-13 19:48:18 +02:00
BACKPORT: block: annotate refault stalls from IO submission
2019-10-04 11:09:46 -07:00
block,blkcg: use __GFP_NOWARN for best-effort allocations in blkcg
2018-09-19 22:47:11 +02:00
BACKPORT: block: annotate refault stalls from IO submission
2019-10-04 11:09:46 -07:00
block: Fix spelling in a source code comment
2016-07-20 21:28:22 -06:00
block: flush: fix IO hang in case of flood fua req
2016-10-26 07:49:27 -06:00
block: fix blk_integrity_register to use template's interval_exp if not 0
2017-05-20 14:28:36 +02:00
mm, page_alloc: distinguish between being unable to sleep, unwilling to sleep and avoiding waking kswapd
2015-11-06 17:50:42 -08:00
block: fix infinite loop if the device loses discard capability
2018-12-29 13:40:14 +01:00
blk_rq_map_user_iov: fix error override
2018-02-25 11:05:42 +01:00
block: make sure a big bio is split into at most 256 bvecs
2016-08-24 08:17:24 -06:00
blk-mq: allow the driver to pass in a queue mapping
2016-09-15 08:42:03 -06:00
blk-mq-pci: add a fallback when pci_irq_get_affinity returns NULL
2017-08-24 17:12:20 -07:00
blk-mq: initialize mq kobjects in blk_mq_init_allocated_queue()
2017-12-14 09:28:21 +01:00
blk-mq: Fix tagset reinit in the presence of cpu hot-unplug
2017-12-20 10:07:20 +01:00
Merge branch 'for-4.9/block-irq' of git://git.kernel.dk/linux-block
2016-10-09 17:29:33 -07:00
block/mq: fix potential deadlock during cpu hotplug
2018-04-24 09:34:18 +02:00
blk-mq: initialize mq kobjects in blk_mq_init_allocated_queue()
2017-12-14 09:28:21 +01:00
UPSTREAM: mm: don't cap request size based on read-ahead setting
2019-01-23 22:15:45 +00:00
This adds a new gcc plugin named "latent_entropy". It is designed to
2016-10-15 10:03:15 -07:00
UPSTREAM: mm: don't cap request size based on read-ahead setting
2019-01-23 22:15:45 +00:00
block: support different tag allocation policy
2015-01-23 14:15:46 -07:00
blk-throttle: make sure expire time isn't too big
2018-03-22 09:17:44 +01:00
block: Fix a race between blk_cleanup_queue() and timeout handling
2017-11-30 08:39:06 +00:00
blk-mq: remove ->map_queue
2016-09-15 08:42:03 -06:00
Merge branch 'for-linus' of git://git.kernel.dk/linux-block
2015-09-19 18:57:09 -07:00
Revert "bsg-lib: don't free job in bsg_prepare_job"
2017-10-21 17:21:33 +02:00
sg_write()/bsg_write() is not fit to be called under KERNEL_DS
2017-01-09 08:32:25 +01:00
ANDROID: block/cfq-iosched: make group_idle per io cgroup tunable
2019-05-15 16:50:28 +08:00
block: remove unrelated header files and export symbol
2014-01-21 20:18:26 -08:00
take floppy compat ioctls to sodding floppy.c
2019-08-04 09:33:29 +02:00
block: do not merge requests without consulting with io scheduler
2016-07-20 21:35:12 -06:00
block: Fix secure erase
2016-08-16 09:16:51 -06:00
block: fix bdi vs gendisk lifetime mismatch
2016-08-04 14:19:16 -06:00
block: invalidate the page cache when issuing BLKZEROOUT
2016-10-11 15:06:30 -07:00
block: fix use-after-free in sys_ioprio_get()
2016-07-01 08:39:24 -06:00
Merge branch 'for-4.9/block-irq' of git://git.kernel.dk/linux-block
2016-10-09 17:29:33 -07:00
blkcg: make CONFIG_BLK_CGROUP bool
2012-03-06 21:27:21 +01:00
Merge branch 'for-4.9/block-smp' of git://git.kernel.dk/linux-block
2016-10-09 17:32:20 -07:00
elevator: use list_{first,prev,next}_entry
2015-11-16 15:21:48 -07:00
block: fix an error code in add_partition()
2018-04-13 19:48:04 +02:00
block: allow WRITE_SAME commands with the SG_IO ioctl
2017-03-22 12:43:38 +01:00
block: Consolidate static integrity profile properties
2015-10-21 14:42:38 -06:00
0b0803a0ea