kernel_optimize_test/block
Christoph Hellwig 8a96a0e408 block: rewrite blk_bvec_map_sg to avoid a nth_page call
The offset in scatterlists is allowed to be larger than the page size,
so don't go to great length to avoid that case and simplify the
arithmetics.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-04-12 09:06:36 -06:00
..
partitions partitions/aix: append null character to print data from disk 2018-07-27 09:17:41 -06:00
badblocks.c badblocks: fix wrong return value in badblocks_set if badblocks are disabled 2017-11-03 11:29:50 -07:00
bfq-cgroup.c block, bfq: fix some typos in comments 2019-04-08 10:05:43 -06:00
bfq-iosched.c block, bfq: fix some typos in comments 2019-04-08 10:05:43 -06:00
bfq-iosched.h block, bfq: fix some typos in comments 2019-04-08 10:05:43 -06:00
bfq-wf2q.c block, bfq: fix some typos in comments 2019-04-08 10:05:43 -06:00
bio-integrity.c block: remove the bio_integrity_advance export 2018-12-16 08:33:57 -07:00
bio.c block: bio: ensure newly added bio flags don't override BVEC_POOL_IDX 2019-04-04 09:30:37 -06:00
blk-cgroup.c blkcg: Fix kernel-doc warnings 2019-03-20 14:39:09 -06:00
blk-core.c mm: refactor readahead defines in mm.h 2019-03-12 10:04:01 -07:00
blk-exec.c block: remove dead elevator code 2018-11-07 13:42:32 -07:00
blk-flush.c blk-mq: use blk_mq_put_driver_tag() to put tag 2019-03-24 10:26:16 -06:00
blk-integrity.c block: merge BIOVEC_SEG_BOUNDARY into biovec_phys_mergeable 2018-09-24 12:33:57 -06:00
blk-ioc.c block: remove the queue_lock indirection 2018-11-15 12:17:28 -07:00
blk-iolatency.c blk-iolatency: #include "blk.h" 2019-03-20 14:19:38 -06:00
blk-lib.c block: fix 32 bit overflow in __blkdev_issue_discard() 2018-11-14 08:17:18 -07:00
blk-map.c Merge branch 'for-4.16/block' of git://git.kernel.dk/linux-block 2018-01-29 11:51:49 -08:00
blk-merge.c block: rewrite blk_bvec_map_sg to avoid a nth_page call 2019-04-12 09:06:36 -06:00
blk-mq-cpumap.c blk-mq: initial support for multiple queue maps 2018-11-07 13:45:00 -07:00
blk-mq-debugfs-zoned.c block: Cleanup license notice 2019-01-17 21:21:40 -07:00
blk-mq-debugfs.c SCSI misc on 20190306 2019-03-09 16:53:47 -08:00
blk-mq-debugfs.h blk-mq-debugfs: support rq_qos 2018-12-16 19:53:47 -07:00
blk-mq-pci.c blk-mq: initial support for multiple queue maps 2018-11-07 13:45:00 -07:00
blk-mq-rdma.c blk-mq-rdma: pass in queue map to blk_mq_rdma_map_queues 2018-12-13 09:59:08 +01:00
blk-mq-sched.c blk-mq: save queue mapping result into ctx directly 2019-02-01 08:33:04 -07:00
blk-mq-sched.h block: mq-deadline: Fix write completion handling 2018-12-17 11:19:39 -07:00
blk-mq-sysfs.c blk-mq: export hctx->type in debugfs instead of sysfs 2018-12-17 05:44:45 -07:00
blk-mq-tag.c blk-mq: save queue mapping result into ctx directly 2019-02-01 08:33:04 -07:00
blk-mq-tag.h Merge branch 'for-4.15/block' of git://git.kernel.dk/linux-block 2017-11-14 15:32:19 -08:00
blk-mq-virtio.c blk-mq: initial support for multiple queue maps 2018-11-07 13:45:00 -07:00
blk-mq.c blk-mq: fix sbitmap ws_active for shared tags 2019-03-25 13:05:47 -06:00
blk-mq.h blk-mq: use blk_mq_put_driver_tag() to put tag 2019-03-24 10:26:16 -06:00
blk-pm.c block: remove the queue_lock indirection 2018-11-15 12:17:28 -07:00
blk-pm.h block: remove the queue_lock indirection 2018-11-15 12:17:28 -07:00
blk-rq-qos.c blk-mq-debugfs: support rq_qos 2018-12-16 19:53:47 -07:00
blk-rq-qos.h block: fix blk-iolatency accounting underflow 2018-12-17 11:19:54 -07:00
blk-settings.c block: kill QUEUE_FLAG_FLUSH_NQ 2019-02-09 15:40:24 -07:00
blk-softirq.c block: remove a few unused exports 2018-11-15 12:13:25 -07:00
blk-stat.c block: remove a few unused exports 2018-11-15 12:13:25 -07:00
blk-stat.h block: deactivate blk_stat timer in wbt_disable_default() 2018-12-12 06:47:51 -07:00
blk-sysfs.c block: add BLK_MQ_POLL_CLASSIC for hybrid poll and return EINVAL for unexpected value 2019-03-20 14:02:07 -06:00
blk-throttle.c blkcg: consolidate bio_issue_init() to be a part of core 2018-12-07 22:26:37 -07:00
blk-timeout.c block: don't hold the queue_lock over blk_abort_request 2018-11-15 12:13:18 -07:00
blk-wbt.c blk-wbt: Declare local functions static 2019-01-24 11:09:21 -07:00
blk-wbt.h block: remove external dependency on wbt_flags 2018-07-09 09:07:54 -06:00
blk-zoned.c for-4.21/block-20181221 2018-12-28 13:19:59 -08:00
blk.h block: pass page to xen_biovec_phys_mergeable 2019-04-01 12:11:13 -06:00
bounce.c block: bounce: make sure that bvec table is updated 2019-02-21 10:58:44 -07:00
bsg-lib.c scsi: bsg-lib: handle bidi requests without block layer help 2019-02-05 21:27:40 -05:00
bsg.c scsi: bsg-lib: handle bidi requests without block layer help 2019-02-05 21:27:40 -05:00
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
elevator.c block: remove unused variable 'def' 2019-04-08 08:13:12 -06:00
genhd.c block: Replace function name in string with __func__ 2019-02-28 14:09:08 -07:00
ioctl.c block: Introduce BLKGETNRZONES ioctl 2018-10-25 11:17:40 -06:00
ioprio.c block: add ioprio_check_cap function 2018-05-31 10:50:54 -04:00
Kconfig block: remove CONFIG_LBDAF 2019-04-06 10:48:35 -06:00
Kconfig.iosched block: remove legacy IO schedulers 2018-11-07 13:42:32 -07:00
kyber-iosched.c kyber: use sbitmap add_wait_queue/list_del wait helpers 2018-12-20 12:17:21 -07:00
Makefile block: remove legacy IO schedulers 2018-11-07 13:42:32 -07:00
mq-deadline.c block: mq-deadline: Fix write completion handling 2018-12-17 11:19:39 -07:00
opal_proto.h block: sed-opal: add token for OPAL_LIFECYCLE 2019-04-06 11:09:13 -06:00
partition-generic.c block: return just one value from part_in_flight 2018-12-10 08:30:38 -07:00
scsi_ioctl.c block: consistently use GFP_NOIO instead of __GFP_NORECLAIM 2018-05-14 08:55:18 -06:00
sed-opal.c block: sed-opal: rename next to execute_steps 2019-04-06 11:09:13 -06:00
t10-pi.c block: move dif_prepare/dif_complete functions to block layer 2018-07-30 08:27:02 -06:00