Jens Axboe d6de8be711 cfq-iosched: fix RCU problem in cfq_cic_lookup() ...

cfq_cic_lookup() needs to properly protect ioc->ioc_data before
dereferencing it and also exclude updaters of ioc->ioc_data as well.

Also add a number of comments documenting why the existing RCU usage
is OK.

Thanks a lot to "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> for
review and comments!

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

2008-05-28 14:49:28 +02:00

..

as-iosched.c

…

blk-barrier.c

block: remove remaining __FUNCTION__ occurrences

2008-05-01 08:04:02 -07:00

blk-core.c

block: Move the second call to get_request to the end of the loop

2008-05-28 14:49:27 +02:00

blk-exec.c

…

blk-ioc.c

cfq-iosched: fix RCU race in the cfq io_context destructor handling

2008-05-07 09:28:57 +02:00

blk-map.c

block: add dma alignment and padding support to blk_rq_map_kern

2008-04-29 09:50:34 +02:00

blk-merge.c

block: get rid of likely/unlikely predictions in merge logic

2008-05-07 09:33:55 +02:00

blk-settings.c

Remove blkdev warning triggered by using md

2008-05-14 19:11:15 -07:00

blk-sysfs.c

block: sysfs store function needs to grab queue_lock and use queue_flag_*()

2008-05-07 09:09:39 +02:00

blk-tag.c

block: adjust tagging function queue bit locking

2008-05-07 09:27:43 +02:00

blk.h

block: rename and export rq_init()

2008-04-29 14:48:55 +02:00

blktrace.c

block: make blktrace use per-cpu buffers for message notes

2008-05-28 14:49:27 +02:00

bsg.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6

2008-05-02 13:52:35 -07:00

cfq-iosched.c

cfq-iosched: fix RCU problem in cfq_cic_lookup()

2008-05-28 14:49:28 +02:00

compat_ioctl.c

Fix misuses of bdevname()

2008-05-13 08:02:26 -07:00

deadline-iosched.c

…

elevator.c

Added in elevator switch message to blktrace stream

2008-05-28 14:49:27 +02:00

genhd.c

block: do_mounts - accept root=<non-existant partition>

2008-05-14 10:37:57 -07:00

ioctl.c

…

Kconfig

…

Kconfig.iosched

…

Makefile

…

noop-iosched.c

…

scsi_ioctl.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6

2008-05-02 13:52:35 -07:00