kernel_optimize_test/block
Tejun Heo a2dec7b363 block: hide request sector and data_len
Block low level drivers for some reason have been pretty good at
abusing block layer API.  Especially struct request's fields tend to
get violated in all possible ways.  Make it clear that low level
drivers MUST NOT access or manipulate rq->sector and rq->data_len
directly by prefixing them with double underscores.

This change is also necessary to break build of out-of-tree codes
which assume the previous block API where internal fields can be
manipulated and rq->data_len carries residual count on completion.

[ Impact: hide internal fields, block API change ]

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2009-05-11 09:50:55 +02:00
..
as-iosched.c block: convert to pos and nr_sectors accessors 2009-05-11 09:50:54 +02:00
blk-barrier.c block: convert to pos and nr_sectors accessors 2009-05-11 09:50:54 +02:00
blk-core.c block: hide request sector and data_len 2009-05-11 09:50:55 +02:00
blk-exec.c block: don't set REQ_NOMERGE unnecessarily 2009-04-28 07:37:33 +02:00
blk-integrity.c
blk-ioc.c
blk-map.c block: hide request sector and data_len 2009-05-11 09:50:55 +02:00
blk-merge.c block: hide request sector and data_len 2009-05-11 09:50:55 +02:00
blk-settings.c block: fix queue bounce limit setting 2009-04-22 08:35:09 +02:00
blk-softirq.c
blk-sysfs.c block: simplify I/O stat accounting 2009-04-24 08:54:21 +02:00
blk-tag.c
blk-timeout.c block: clean up misc stuff after block layer timeout conversion 2009-04-28 07:37:34 +02:00
blk.h block: drop request->hard_* and *nr_sectors 2009-05-11 09:50:54 +02:00
bsg.c block: add rq->resid_len 2009-05-11 09:50:53 +02:00
cfq-iosched.c block: drop request->hard_* and *nr_sectors 2009-05-11 09:50:54 +02:00
cmd-filter.c
compat_ioctl.c
deadline-iosched.c block: convert to pos and nr_sectors accessors 2009-05-11 09:50:54 +02:00
elevator.c block: convert to pos and nr_sectors accessors 2009-05-11 09:50:54 +02:00
genhd.c block: include empty disks in /proc/diskstats 2009-04-22 08:35:10 +02:00
ioctl.c block: Remove code handling bio_alloc failure with __GFP_WAIT 2009-04-15 12:10:12 +02:00
Kconfig block: enable by default support for large devices and files on 32-bit archs 2009-04-28 07:37:33 +02:00
Kconfig.iosched
Makefile
noop-iosched.c
scsi_ioctl.c block: add rq->resid_len 2009-05-11 09:50:53 +02:00