Miklos Szeredi 3c522cedb5 block: fix refcounting in BLKBSZSET ... Adam Kovari and others reported that disconnecting an USB drive with an ntfs-3g filesystem would cause "kernel BUG at fs/inode.c:1421!" to be triggered. The BUG could be traced back to ioctl(BLKBSZSET), which would erroneously decrement the refcount on the bdev. This is because blkdev_get() expects the refcount to be already incremented and either returns success or decrements the refcount and returns an error. The bug was introduced by e525fd89 (block: make blkdev_get/put() handle exclusive access), which didn't take into account this behavior of blkdev_get(). This fixes https://bugzilla.kernel.org/show_bug.cgi?id=29202 (and likely 29792 too) Reported-by: Adam Kovari <kovariadam@gmail.com> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2011-02-24 08:54:21 -08:00
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blk-cgroup.c
blk-cgroup.h
blk-core.c
blk-exec.c
blk-flush.c
blk-integrity.c
blk-ioc.c
blk-iopoll.c
blk-lib.c
blk-map.c
blk-merge.c
blk-settings.c
blk-softirq.c
blk-sysfs.c
blk-tag.c
blk-throttle.c	blkio-throttle: Avoid calling blkiocg_lookup_group() for root group	2011-01-19 08:25:02 -07:00
blk-timeout.c
blk.h
bsg.c
cfq-iosched.c	cfq-iosched: Don't wait if queue already has requests.	2011-02-09 14:22:36 +01:00
cfq.h
compat_ioctl.c
deadline-iosched.c
elevator.c
genhd.c
ioctl.c	block: fix refcounting in BLKBSZSET	2011-02-24 08:54:21 -08:00
Kconfig	kconfig: rename CONFIG_EMBEDDED to CONFIG_EXPERT	2011-01-20 17:02:05 -08:00
Kconfig.iosched
Makefile
noop-iosched.c
scsi_ioctl.c