Kent Overstreet 3816199506 block: add bio_iov_iter_get_pages() ...

This is a helper that pins down a range from an iov_iter and adds it to
a bio without requiring a separate memory allocation for the page array.
It will be used for upcoming direct I/O implementations for block devices
and iomap based file systems.

Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
[hch: ported to the iov_iter interface, renamed and added comments.
      All blame should be directed to me and all fame should go to Kent
      after this!]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>

(cherry picked from commit 9cd56d916aa481ce8f56d9c5302a6ed90c2e0b5f)

2016-11-30 13:02:03 +11:00

..

partitions

block: atari: Return early for unsupported sector size

2016-07-13 09:31:44 -07:00

badblocks.c

block, badblocks: introduce devm_init_badblocks

2016-01-09 08:39:04 -08:00

bio-integrity.c

block: rename bio bi_rw to bi_opf

2016-08-07 14:41:02 -06:00

bio.c

block: add bio_iov_iter_get_pages()

2016-11-30 13:02:03 +11:00

blk-cgroup.c

blkcg: Unlock blkcg_pol_mutex only once when cpd == NULL

2016-09-30 10:31:20 +02:00

blk-core.c

block: add poll_considered statistic

2016-09-14 08:41:21 -06:00

blk-exec.c

block: Fix spelling in a source code comment

2016-07-20 21:28:22 -06:00

blk-flush.c

blk-mq: remove ->map_queue

2016-09-15 08:42:03 -06:00

blk-integrity.c

block, libnvdimm, nvme: provide a built-in blk_integrity nop profile

2015-10-21 14:43:45 -06:00

blk-ioc.c

mm, page_alloc: distinguish between being unable to sleep, unwilling to sleep and avoiding waking kswapd

2015-11-06 17:50:42 -08:00

blk-lib.c

block: require write_same and discard requests align to logical block size

2016-10-11 15:06:30 -07:00

blk-map.c

block: simplify and export blk_rq_append_bio

2016-07-20 17:38:32 -06:00

blk-merge.c

block: make sure a big bio is split into at most 256 bvecs

2016-08-24 08:17:24 -06:00

blk-mq-cpumap.c

blk-mq: allow the driver to pass in a queue mapping

2016-09-15 08:42:03 -06:00

blk-mq-pci.c

blk_mq: linux/blk-mq.h does not include all the headers it depends on

2016-09-19 08:21:51 -06:00

blk-mq-sysfs.c

blk-mq: register device instead of disk

2016-09-21 07:56:16 -06:00

blk-mq-tag.c

Merge branch 'for-4.9/block-irq' of git://git.kernel.dk/linux-block

2016-10-09 17:29:33 -07:00

blk-mq-tag.h

Merge branch 'for-4.9/block-irq' of git://git.kernel.dk/linux-block

2016-10-09 17:29:33 -07:00

blk-mq.c

Merge branch 'for-4.9/block-smp' of git://git.kernel.dk/linux-block

2016-10-09 17:32:20 -07:00

blk-mq.h

Merge branch 'for-4.9/block-smp' of git://git.kernel.dk/linux-block

2016-10-09 17:32:20 -07:00

blk-settings.c

block: kill off q->flush_flags

2016-04-13 13:33:19 -06:00

blk-softirq.c

This adds a new gcc plugin named "latent_entropy". It is designed to

2016-10-15 10:03:15 -07:00

blk-sysfs.c

blk-mq: register device instead of disk

2016-09-21 07:56:16 -06:00

blk-tag.c

block: support different tag allocation policy

2015-01-23 14:15:46 -07:00

blk-throttle.c

blk-throttle: Extend slice if throttle group is not empty

2016-09-19 15:12:41 -06:00

blk-timeout.c

block: remove REQ_NO_TIMEOUT flag

2015-12-22 09:38:34 -07:00

blk.h

blk-mq: remove ->map_queue

2016-09-15 08:42:03 -06:00

bounce.c

Merge branch 'for-linus' of git://git.kernel.dk/linux-block

2015-09-19 18:57:09 -07:00

bsg-lib.c

bsg: Remove unused function bsg_goose_queue()

2012-12-06 14:33:02 +01:00

bsg.c

block: Simplify bsg complete all

2015-02-04 09:57:52 -07:00

cfq-iosched.c

cfq: fix starvation of asynchronous writes

2016-09-23 10:01:24 -06:00

cmdline-parser.c

block: remove unrelated header files and export symbol

2014-01-21 20:18:26 -08:00

compat_ioctl.c

mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros

2016-04-04 10:41:08 -07:00

deadline-iosched.c

block: do not merge requests without consulting with io scheduler

2016-07-20 21:35:12 -06:00

elevator.c

block: Fix secure erase

2016-08-16 09:16:51 -06:00

genhd.c

block: fix bdi vs gendisk lifetime mismatch

2016-08-04 14:19:16 -06:00

ioctl.c

block: invalidate the page cache when issuing BLKZEROOUT

2016-10-11 15:06:30 -07:00

ioprio.c

block: fix use-after-free in sys_ioprio_get()

2016-07-01 08:39:24 -06:00

Kconfig

Merge branch 'for-4.9/block-irq' of git://git.kernel.dk/linux-block

2016-10-09 17:29:33 -07:00

Kconfig.iosched

blkcg: make CONFIG_BLK_CGROUP bool

2012-03-06 21:27:21 +01:00

Makefile

Merge branch 'for-4.9/block-smp' of git://git.kernel.dk/linux-block

2016-10-09 17:32:20 -07:00

noop-iosched.c

elevator: use list_{first,prev,next}_entry

2015-11-16 15:21:48 -07:00

partition-generic.c

block/partition-generic.c: Remove a set-but-not-used variable

2016-06-14 09:09:15 -06:00

scsi_ioctl.c

mm, page_alloc: rename __GFP_WAIT to __GFP_RECLAIM

2015-11-06 17:50:42 -08:00

t10-pi.c

block: Consolidate static integrity profile properties

2015-10-21 14:42:38 -06:00