Jens Axboe 07416d29bc cfq-iosched: fix RCU race in the cfq io_context destructor handling ... put_io_context() drops the RCU read lock before calling into cfq_dtor(), however we need to hold off freeing there before grabbing and dereferencing the first object on the list. So extend the rcu_read_lock() scope to cover the calling of cfq_dtor(), and optimize cfq_free_io_context() to use a new variant for call_for_each_cic() that assumes the RCU read lock is already held. Hit in the wild by Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>		2008-05-07 09:28:57 +02:00
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Kconfig	Kconfig: clean up block/Kconfig help descriptions	2008-04-21 09:51:04 +02:00
Kconfig.iosched	update I/O sched Kconfig help texts - CFQ is now default, not AS.	2007-02-17 20:08:22 +01:00
Makefile	block: ll_rw_blk.c split, add blk-merge.c	2008-01-29 21:55:12 +01:00
as-iosched.c	block: kill swap_io_context()	2008-02-01 11:34:49 +01:00
blk-barrier.c	block: remove remaining __FUNCTION__ occurrences	2008-05-01 08:04:02 -07:00
blk-core.c	block: remove remaining __FUNCTION__ occurrences	2008-05-01 08:04:02 -07:00
blk-exec.c	block: make core bits checkpatch compliant	2008-02-01 09:26:33 +01:00
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: make queue flags non-atomic	2008-04-29 14:48:33 +02:00
blk-settings.c	block: remove remaining __FUNCTION__ occurrences	2008-05-01 08:04:02 -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	blktrace: Add blktrace ioctls to SCSI generic devices	2008-01-28 10:04:46 +01:00
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 race in the cfq io_context destructor handling	2008-05-07 09:28:57 +02:00
compat_ioctl.c	ide: remove broken/dangerous HDIO_[UNREGISTER,SCAN]_HWIF ioctls (take 3)	2008-04-18 00:46:24 +02:00
deadline-iosched.c	block: let elv_register() return void	2007-12-18 08:29:28 +01:00
elevator.c	block: remove remaining __FUNCTION__ occurrences	2008-05-01 08:04:02 -07:00
genhd.c	mm: bdi: export BDI attributes in sysfs	2008-04-30 08:29:49 -07:00
ioctl.c	compat_ioctl: move common block ioctls to compat_blkdev_ioctl	2007-10-10 09:26:00 +02:00
noop-iosched.c	block: let elv_register() return void	2007-12-18 08:29:28 +01:00
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