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

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as-iosched.c

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blk-barrier.c

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blk-core.c

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blk-exec.c

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blk-ioc.c

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blk-map.c

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blk-merge.c

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blk-settings.c

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blk-sysfs.c

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blk-tag.c

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blk.h

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blktrace.c

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

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

bsg.c

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cfq-iosched.c

cfq-iosched: fix RCU problem in cfq_cic_lookup()

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

compat_ioctl.c

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deadline-iosched.c

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elevator.c

Added in elevator switch message to blktrace stream

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

genhd.c

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ioctl.c

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Kconfig

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Kconfig.iosched

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Makefile

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noop-iosched.c

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scsi_ioctl.c

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