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kernel-fxtec-pro1x/drivers/block
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Konrad Rzeszutek Wilk 8c9ce606a6 xen/blkback: Copy id field when doing BLKIF_DISCARD. 
We weren't copying the id field so when we sent the response
back to the frontend (especially with a 64-bit host and 32-bit
guest), we ended up using a random value. This lead to the
frontend crashing as it would try to pass to __blk_end_request_all
a NULL 'struct request' (b/c it would use the 'id' to find the
proper 'struct request' in its shadow array) and end up crashing:

BUG: unable to handle kernel NULL pointer dereference at 000000e4
IP: [<c0646d4c>] __blk_end_request_all+0xc/0x40
.. snip..
EIP is at __blk_end_request_all+0xc/0x40
.. snip..
 [<ed95db72>] blkif_interrupt+0x172/0x330 [xen_blkfront]

This fixes the bug by passing in the proper id for the response.

Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=824641

CC: stable@kernel.org
Tested-by: William Dauchy <wdauchy@gmail.com>
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2012-05-30 17:20:04 -04:00
..
aoe switch device_get_devnode() and ->devnode() to umode_t * 2012-01-03 22:54:55 -05:00
drbd usermodehelper: use UMH_WAIT_PROC consistently 2012-03-23 16:58:41 -07:00
mtip32xx block: mtip32xx: remove HOTPLUG_PCI_PCIE dependancy 2012-04-12 08:47:05 +02:00
paride paride/pcd: fix bool verbose module parameter. 2012-01-13 09:32:26 +10:30
xen-blkback xen/blkback: Copy id field when doing BLKIF_DISCARD. 2012-05-30 17:20:04 -04:00
amiflop.c fs: move code out of buffer.c 2012-01-03 22:54:07 -05:00
ataflop.c block: unexport DISK_EVENT_MEDIA_CHANGE for legacy/fringe drivers 2011-04-21 21:33:05 +02:00
brd.c block: remove the second argument of k[un]map_atomic() 2012-03-20 21:48:16 +08:00
cciss.c block: add and use scsi_blk_cmd_ioctl 2012-01-14 15:07:24 -08:00
cciss.h cciss: Adds simple mode functionality 2011-08-08 11:40:15 +02:00
cciss_cmd.h cciss: use new doorbell-bit-5 reset method 2011-05-06 08:23:55 -06:00
cciss_scsi.c cciss: Fix scsi tape io with more than 255 scatter gather elements 2012-03-22 21:40:09 +01:00
cciss_scsi.h cciss: add cciss_tape_cmds module paramter 2011-05-06 08:23:59 -06:00
cpqarray.c drivers/block/cpqarray.c: use pci_dev->revision 2011-09-21 10:02:13 +02:00
cpqarray.h
cryptoloop.c drivers: Remove unnecessary inclusions of asm/semaphore.h 2008-04-18 22:16:32 -04:00
DAC960.c drivers/block/DAC960: fix -Wuninitialized warning 2012-03-02 10:48:35 +01:00
DAC960.h Fix DAC960 driver on machines which don't support 64-bit DMA 2007-09-11 17:21:19 -07:00
floppy.c x86: Remove the ancient and deprecated disable_hlt() and enable_hlt() facility 2012-03-30 08:50:27 +02:00
hd.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
ida_cmd.h
ida_ioctl.h
Kconfig usb/ub: deprecate & schedule for removal the "Low Performance USB Block" driver 2012-03-16 13:30:10 -07:00
loop.c block: remove the second argument of k[un]map_atomic() 2012-03-20 21:48:16 +08:00
Makefile Merge git://git.infradead.org/users/willy/linux-nvme 2012-01-18 12:34:09 -08:00
mg_disk.c block: switch s390 tape_block and mg_disk to elevator_change() 2010-08-23 14:02:44 +02:00
nbd.c Merge branch 'akpm' (Andrew's patch-bomb) 2012-03-28 17:19:28 -07:00
nvme.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2012-03-20 21:12:50 -07:00
osdblk.c block: remove spurious uses of REQ_HARDBARRIER 2010-09-10 12:35:36 +02:00
pktcdvd.c block: remove the second argument of k[un]map_atomic() 2012-03-20 21:48:16 +08:00
ps3disk.c block: Fix files that are modules and hence need module.h 2011-10-31 19:31:13 -04:00
ps3vram.c Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux 2011-11-06 19:44:47 -08:00
rbd.c rbd: move snap_rwsem to the device, rename to header_rwsem 2012-03-22 10:47:52 -05:00
rbd_types.h rbd: small changes 2012-03-22 10:47:50 -05:00
smart1,2.h fix typos 'comamnd' -> 'command' in comments 2011-02-02 11:31:21 +01:00
sunvdc.c powerpc+sparc/vio: Modernize driver registration 2012-03-28 11:33:24 +11:00
swim.c m68k/mac: cleanup forward declarations 2011-12-10 19:52:46 +01:00
swim3.c block/swim3: Locking fixes 2011-12-12 12:42:12 +01:00
swim_asm.S m68k: mac - Add SWIM floppy support 2009-03-26 21:15:27 +01:00
sx8.c block, sx8: fix pointer math issue getting fw version 2012-03-03 19:44:39 +01:00
ub.c usb/ub: deprecate & schedule for removal the "Low Performance USB Block" driver 2012-03-16 13:30:10 -07:00
umem.c block: remove support for bio remapping from ->make_request 2011-09-12 12:12:01 +02:00
umem.h drivers/block/umem: trim trailing whitespace 2007-10-10 09:25:59 +02:00
virtio_blk.c virtio-blk: Call revalidate_disk() upon online disk resize 2012-03-29 10:09:44 +02:00
xd.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
xd.h [PATCH] switch xd 2008-10-21 07:48:11 -04:00
xen-blkfront.c xen-blkfront: module exit handling adjustments 2012-05-11 16:11:54 -04:00
xsysace.c block: xsysace: Don't use NO_IRQ 2012-01-05 08:34:29 +01:00
z2ram.c drivers/block/z2ram.c: correct printing of sector_t 2010-10-28 06:15:26 -06:00