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53cc0b2948
linux/block
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Petr Vandrovec 53cc0b2948 When block layer fails to map iov, it calls bio_unmap_user to undo 
mapping.  Which is good if pages were mapped - but if they were provided
by someone else and just copied then bad things happen - pages are
released once here, and once by caller, leading to user triggerable BUG
at include/linux/mm.h:246.

Signed-off-by: Petr Vandrovec <petr@vandrovec.name>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-12-03 12:41:20 +01:00
..
as-iosched.c block: as/cfq ssd idle check update 2008-10-09 08:56:19 +02:00
blk-barrier.c block: adjust blkdev_issue_discard for swap 2008-10-09 08:56:17 +02:00
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 Add some block/ source files to the kernel-api docbook. Fix kernel-doc notation in them as needed. Fix changed function parameter names. Fix typos/spellos. In comments, change REQ_SPECIAL to REQ_TYPE_SPECIAL and REQ_BLOCK_PC to REQ_TYPE_BLOCK_PC. 2008-10-09 08:56:03 +02:00
blk-integrity.c block: Switch blk_integrity_compare from bdev to gendisk 2008-10-09 08:56:21 +02:00
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 When block layer fails to map iov, it calls bio_unmap_user to undo 2008-12-03 12:41:20 +01:00
blk-merge.c block: remove unused ll_new_mergeable() 2008-11-06 08:41:55 +01:00
blk-settings.c block: move q->unplug_work initialization 2008-10-17 08:46:57 +02:00
blk-softirq.c block: add fault injection mechanism for faking request timeouts 2008-10-09 08:56:17 +02:00
blk-sysfs.c block: add support for IO CPU affinity 2008-10-09 08:56:09 +02:00
blk-tag.c block: reserve some tags just for sync IO 2008-10-09 08:56:19 +02:00
blk-timeout.c Block: use round_jiffies_up() 2008-11-06 08:42:49 +01:00
blk.h block: remove __generic_unplug_device() from exports 2008-10-17 14:03:08 +02:00
blktrace.c blktrace: use BLKTRACE_BDEV_SIZE as the name size for setup structure 2008-10-09 08:56:20 +02:00
bsg.c [PATCH] switch scsi_cmd_ioctl() to passing fmode_t 2008-10-21 07:47:14 -04:00
cfq-iosched.c block: as/cfq ssd idle check update 2008-10-09 08:56:19 +02:00
cmd-filter.c [PATCH] introduce fmode_t, do annotations 2008-10-21 07:47:06 -04:00
compat_ioctl.c compat_blkdev_driver_ioctl: Remove unused variable warning 2008-10-23 10:28:25 -07:00
deadline-iosched.c deadline-iosched: non-functional fixes 2008-10-09 08:56:03 +02:00
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
Kconfig block: Block layer data integrity support 2008-07-03 13:21:13 +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: unify request timeout handling 2008-10-09 08:56:13 +02:00
noop-iosched.c block: let elv_register() return void 2007-12-18 08:29:28 +01:00
scsi_ioctl.c [PATCH] switch scsi_cmd_ioctl() to passing fmode_t 2008-10-21 07:47:14 -04:00