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ef295ecf09
linux/block
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Christoph Hellwig ef295ecf09 block: better op and flags encoding 
Now that we don't need the common flags to overflow outside the range
of a 32-bit type we can encode them the same way for both the bio and
request fields.  This in addition allows us to place the operation
first (and make some room for more ops while we're at it) and to
stop having to shift around the operation values.

In addition this allows passing around only one value in the block layer
instead of two (and eventuall also in the file systems, but we can do
that later) and thus clean up a lot of code.

Last but not least this allows decreasing the size of the cmd_flags
field in struct request to 32-bits.  Various functions passing this
value could also be updated, but I'd like to avoid the churn for now.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
2016-10-28 08:48:16 -06:00
..
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: remove bio_is_rw 2016-10-28 08:45:17 -06:00
bio.c block: export bio_free_pages to other modules 2016-09-22 07:48:03 -06:00
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: better op and flags encoding 2016-10-28 08:48:16 -06:00
blk-exec.c block: split out request-only flags into a new namespace 2016-10-28 08:45:17 -06:00
blk-flush.c block: better op and flags encoding 2016-10-28 08:48:16 -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: better op and flags encoding 2016-10-28 08:48:16 -06:00
blk-map.c block: better op and flags encoding 2016-10-28 08:48:16 -06:00
blk-merge.c block: split out request-only flags into a new namespace 2016-10-28 08:45:17 -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 block: better op and flags encoding 2016-10-28 08:48:16 -06:00
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: update chunk_sectors in blk_stack_limits() 2016-10-18 10:02:04 -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-sysfs: Add 'chunk_sectors' to sysfs attributes 2016-10-18 10:02:02 -06:00
blk-tag.c block: split out request-only flags into a new namespace 2016-10-28 08:45:17 -06:00
blk-throttle.c block: replace REQ_THROTTLED with a bio flag 2016-10-28 08:45:17 -06:00
blk-timeout.c block: remove REQ_NO_TIMEOUT flag 2015-12-22 09:38:34 -07:00
blk-zoned.c block: zoned: fix harmless maybe-uninitialized warning 2016-10-24 20:51:22 -06:00
blk.h block: split out request-only flags into a new namespace 2016-10-28 08:45:17 -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 block: better op and flags encoding 2016-10-28 08:48:16 -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: better op and flags encoding 2016-10-28 08:48:16 -06:00
genhd.c block: fix bdi vs gendisk lifetime mismatch 2016-08-04 14:19:16 -06:00
ioctl.c blk-zoned: implement ioctls 2016-10-18 10:05:42 -06:00
ioprio.c block: fix use-after-free in sys_ioprio_get() 2016-07-01 08:39:24 -06:00
Kconfig block: Implement support for zoned block devices 2016-10-18 10:05:40 -06:00
Kconfig.iosched blkcg: make CONFIG_BLK_CGROUP bool 2012-03-06 21:27:21 +01:00
Makefile block: Implement support for zoned block devices 2016-10-18 10:05:40 -06:00
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