linux/block
Jens Axboe c26156b253 block: hold extra reference to bio in blk_rq_map_user_iov()
If the size passed in is OK but we end up mapping too many segments,
we call the unmap path directly like from IO completion. But from IO
completion we have an extra reference to the bio, so this error case
goes OOPS when it attempts to free and already free bio.

Fix it by getting an extra reference to the bio before calling the
unmap failure case.

Reported-by: Petr Vandrovec <vandrove@vc.cvut.cz>

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-11-18 15:08:56 +01:00
..
Kconfig
Kconfig.iosched
Makefile
as-iosched.c
blk-barrier.c
blk-core.c blk: move blk_delete_timer call in end_that_request_last 2008-11-06 08:41:56 +01:00
blk-exec.c
blk-integrity.c
blk-ioc.c
blk-map.c block: hold extra reference to bio in blk_rq_map_user_iov() 2008-11-18 15:08:56 +01:00
blk-merge.c block: remove unused ll_new_mergeable() 2008-11-06 08:41:55 +01:00
blk-settings.c
blk-softirq.c
blk-sysfs.c
blk-tag.c
blk-timeout.c Block: use round_jiffies_up() 2008-11-06 08:42:49 +01:00
blk.h
blktrace.c
bsg.c
cfq-iosched.c
cmd-filter.c
compat_ioctl.c
deadline-iosched.c
elevator.c block: add timer on blkdev_dequeue_request() not elv_next_request() 2008-11-06 08:41:55 +01:00
genhd.c block: fix boot failure with CONFIG_DEBUG_BLOCK_EXT_DEVT=y and nash 2008-11-18 15:08:56 +01:00
ioctl.c block: make add_partition() return pointer to hd_struct 2008-11-18 15:08:56 +01:00
noop-iosched.c
scsi_ioctl.c