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Christoph Hellwig 515e2f3e9f block: add a lower-level bio_add_page interface 
[ Upstream commit 0aa69fd32a ]

For the upcoming removal of buffer heads in XFS we need to keep track of
the number of outstanding writeback requests per page.  For this we need
to know if bio_add_page merged a region with the previous bvec or not.
Instead of adding additional arguments this refactors bio_add_page to
be implemented using three lower level helpers which users like XFS can
use directly if they care about the merge decisions.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-07-03 13:15:58 +02:00
..
partitions partitions/aix: fix usage of uninitialized lv_info and lvname structures 2018-09-19 22:43:44 +02:00
badblocks.c badblocks: fix wrong return value in badblocks_set if badblocks are disabled 2017-12-20 10:10:26 +01:00
bfq-cgroup.c block: bfq: swap puts in bfqg_and_blkg_put 2018-09-19 22:43:35 +02:00
bfq-iosched.c block, bfq: increase idling for weight-raised queues 2019-06-15 11:54:58 +02:00
bfq-iosched.h Merge branch 'for-4.14/block' of git://git.kernel.dk/linux-block 2017-09-07 11:59:42 -07:00
bfq-wf2q.c block, bfq: correctly charge and reset entity service in all cases 2018-11-13 11:14:55 -08:00
bio-integrity.c Merge branch 'for-4.14/block' of git://git.kernel.dk/linux-block 2017-09-07 11:59:42 -07:00
bio.c block: add a lower-level bio_add_page interface 2019-07-03 13:15:58 +02:00
blk-cgroup.c blkcg: init root blkcg_gq under lock 2018-06-21 04:02:44 +09:00
blk-core.c blk-mq: move cancel of requeue_work into blk_mq_release 2019-06-15 11:54:54 +02:00
blk-exec.c block: introduce new block status code type 2017-06-09 09:27:32 -06:00
blk-flush.c blk-mq: fix a hung issue when fsync 2019-02-20 10:20:44 +01:00
blk-integrity.c block: switch bios to blk_status_t 2017-06-09 09:27:32 -06:00
blk-ioc.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
blk-lib.c block: fix infinite loop if the device loses discard capability 2018-12-29 13:39:07 +01:00
blk-map.c blk_rq_map_user_iov: fix error override 2018-02-25 11:07:49 +01:00
blk-merge.c blk-mq: fix discard merge with scheduler attached 2018-04-26 11:02:15 +02:00
blk-mq-cpumap.c blk-mq: don't keep offline CPUs mapped to hctx 0 2018-04-19 08:56:20 +02:00
blk-mq-debugfs.c blk-mq-debugfs: don't allow write on attributes with seq_operations set 2018-04-26 11:02:11 +02:00
blk-mq-debugfs.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
blk-mq-pci.c blk-mq-pci: add a fallback when pci_irq_get_affinity returns NULL 2017-08-18 08:08:14 -06:00
blk-mq-rdma.c block: Add rdma affinity based queue mapping helper 2017-08-08 14:58:03 -04:00
blk-mq-sched.c blk-mq: only attempt to merge bio if there is rq in sw queue 2018-09-26 08:38:13 +02:00
blk-mq-sched.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
blk-mq-sysfs.c blk-mq: untangle debugfs and sysfs 2017-05-04 08:24:13 -06:00
blk-mq-tag.c blk-mq: fix updating tags depth 2018-09-19 22:43:39 +02:00
blk-mq-tag.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
blk-mq-virtio.c
blk-mq.c blk-mq: move cancel of requeue_work into blk_mq_release 2019-06-15 11:54:54 +02:00
blk-mq.h blk-mq: fix sysfs inflight counter 2018-06-21 04:02:49 +09:00
blk-settings.c block: allow max_discard_segments to be stacked 2018-09-26 08:38:00 +02:00
blk-softirq.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
blk-stat.c blk-stat: don't use this_cpu_ptr() in a preemptable section 2017-05-10 07:40:18 -06:00
blk-stat.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
blk-sysfs.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
blk-tag.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
blk-throttle.c block-throttle: avoid double charge 2017-12-29 17:53:47 +01:00
blk-timeout.c block: Fix a race between blk_cleanup_queue() and timeout handling 2017-11-30 08:40:52 +00:00
blk-wbt.c blk-wbt: account flush requests correctly 2018-02-22 15:42:29 +01:00
blk-wbt.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
blk-zoned.c blkdev_report_zones_ioctl(): Use vmalloc() to allocate large buffers 2018-06-16 09:45:14 +02:00
blk.h block: drain queue before waiting for q_usage_counter becoming zero 2018-03-03 10:24:35 +01:00
bounce.c block: don't let passthrough IO go into .make_request_fn() 2018-01-02 20:31:05 +01:00
bsg-lib.c bsg-lib: fix use-after-free under memory-pressure 2017-10-04 08:35:04 -06:00
bsg.c bsg: remove #if 0'ed code 2017-08-29 10:50:30 -06:00
cfq-iosched.c cfq: Suppress compiler warnings about comparisons 2018-09-15 09:45:31 +02:00
cmdline-parser.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
compat_ioctl.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
deadline-iosched.c block, scheduler: convert xxx_var_store to void 2017-08-28 10:01:08 -06:00
elevator.c elevator: lookup mq vs non-mq elevators 2018-12-21 14:13:10 +01:00
genhd.c blk-mq: fix sysfs inflight counter 2018-06-21 04:02:49 +09:00
ioctl.c
ioprio.c block: Add fallthrough markers to switch statements 2017-06-21 11:46:07 -06:00
Kconfig License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Kconfig.iosched License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
kyber-iosched.c block: kyber: fix domain token leak during requeue 2018-03-08 22:41:05 -08:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mq-deadline.c mq-deadline: Enable auto-loading when built as module 2017-08-29 10:47:23 -06:00
noop-iosched.c
opal_proto.h block: sed-opal: Set MBRDone on S3 resume path if TPER is MBREnabled 2017-09-11 09:45:52 -06:00
partition-generic.c blk-mq: fix sysfs inflight counter 2018-06-21 04:02:49 +09:00
scsi_ioctl.c block: Change argument type of scsi_req_init() 2017-06-20 19:27:14 -06:00
sed-opal.c block: sed-opal: fix IOC_OPAL_ENABLE_DISABLE_MBR 2019-05-31 06:47:29 -07:00
t10-pi.c t10-pi: Move opencoded contants to common header 2017-07-03 16:56:25 -06:00