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b35f8caa08
linux/drivers
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Milan Broz b35f8caa08 dm crypt: wait for endio to complete before destruction 
The following oops has been reported when dm-crypt runs over a loop device.

...
[   70.381058] Process loop0 (pid: 4268, ti=cf3b2000 task=cf1cc1f0 task.ti=cf3b2000)
...
[   70.381058] Call Trace:
[   70.381058]  [<d0d76601>] ? crypt_dec_pending+0x5e/0x62 [dm_crypt]
[   70.381058]  [<d0d767b8>] ? crypt_endio+0xa2/0xaa [dm_crypt]
[   70.381058]  [<d0d76716>] ? crypt_endio+0x0/0xaa [dm_crypt]
[   70.381058]  [<c01a2f24>] ? bio_endio+0x2b/0x2e
[   70.381058]  [<d0806530>] ? dec_pending+0x224/0x23b [dm_mod]
[   70.381058]  [<d08066e4>] ? clone_endio+0x79/0xa4 [dm_mod]
[   70.381058]  [<d080666b>] ? clone_endio+0x0/0xa4 [dm_mod]
[   70.381058]  [<c01a2f24>] ? bio_endio+0x2b/0x2e
[   70.381058]  [<c02bad86>] ? loop_thread+0x380/0x3b7
[   70.381058]  [<c02ba8a1>] ? do_lo_send_aops+0x0/0x165
[   70.381058]  [<c013754f>] ? autoremove_wake_function+0x0/0x33
[   70.381058]  [<c02baa06>] ? loop_thread+0x0/0x3b7

When a table is being replaced, it waits for I/O to complete
before destroying the mempool, but the endio function doesn't
call mempool_free() until after completing the bio.

Fix it by swapping the order of those two operations.

The same problem occurs in dm.c with md referenced after dec_pending.
Again, we swap the order.

Cc: stable@kernel.org
Signed-off-by: Milan Broz <mbroz@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2009-03-16 17:44:36 +00:00
..
accessibility
acpi Merge branches 'release', 'bugzilla-12011', 'bugzilla-12632', 'misc' and 'suspend' into release 2009-02-21 22:01:43 -05:00
amba [ARM] Fix realview build 2009-01-08 16:29:41 +00:00
ata ata_piix: add workaround for Samsung DB-P70 2009-03-13 14:56:07 -04:00
atm ATM: misplaced parentheses? 2009-02-18 17:41:38 -08:00
auxdisplay
base mm: get_nid_for_pfn() returns int 2009-03-10 15:55:10 -07:00
block Fix Xilinx SystemACE driver to handle empty CF slot 2009-03-14 21:06:52 +01:00
bluetooth
cdrom
char parisc: remove klist iterators 2009-03-13 01:16:58 -04:00
clocksource
connector
cpufreq Revert "[CPUFREQ] Disable sysfs ui for p4-clockmod." 2009-03-09 15:07:33 -04:00
cpuidle
crypto crypto: ixp4xx - Fix qmgr_request_queue build failure 2009-03-04 08:01:22 +08:00
dca I/OAT: update driver version and copyright dates 2009-03-04 16:04:40 -07:00
dio m68k: dio - Kill resource_size_t format warnings 2009-01-12 20:56:42 +01:00
dma Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx 2009-03-08 10:23:05 -07:00
edac powerpc: More printing warning fixes for the l64 to ll64 conversion 2009-01-28 17:15:52 +11:00
eisa
firewire firewire: core: Remove card from list of cards when enable fails 2009-02-01 11:17:24 +01:00
firmware Bernhard has moved 2009-02-18 15:37:56 -08:00
gpio gpiolib: fix request related issue 2009-01-29 18:04:43 -08:00
gpu drm/i915: fix 945 fence register writes for fence 8 and above. 2009-03-11 11:02:06 -07:00
hid HID: move tmff and zpff devices from ignore_list to blacklist 2009-02-17 13:25:01 +01:00
hwmon hwmon: (f75375s) Remove unnecessary and confusing initialization 2009-03-12 13:36:39 +01:00
i2c Merge master.kernel.org:/home/rmk/linux-2.6-arm 2009-03-03 14:12:41 -08:00
ide ide: save the returned value of dma_map_sg 2009-03-13 21:16:13 +01:00
idle
ieee1394 Make ieee1394_init a fs-initcall 2009-02-26 10:32:31 -08:00
infiniband RDMA/nes: Don't allow userspace QPs to use STag zero 2009-03-12 16:21:41 -07:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2009-03-02 15:43:03 -08:00
isdn ISDN: fix sc/shmem printk format warning 2009-02-20 00:54:44 -08:00
leds lis3lv02d: merge with leds hp disk 2009-01-15 16:39:40 -08:00
lguest lguest: fix for CONFIG_SPARSE_IRQ=y 2009-03-09 10:06:29 +10:30
macintosh Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2009-01-07 11:31:52 -08:00
mca
md dm crypt: wait for endio to complete before destruction 2009-03-16 17:44:36 +00:00
media V4L/DVB (10978): Report tuning algorith correctly 2009-03-13 13:19:42 -03:00
memstick memstick: annotate endianness of attribute structs 2009-01-09 16:54:41 -08:00
message [SCSI] mpt: fix disable lsi sas to use msi as default 2009-02-22 08:51:07 -06:00
mfd mfd: add support for WM8351 revision B 2009-03-12 16:20:24 -07:00
misc hpilo: new pci device 2009-02-27 16:26:22 -08:00
mmc mmc: s3cmci: fix s3c2410_dma_config() arguments. 2009-03-12 16:20:24 -07:00
mtd mtd: physmap: fix NULL pointer dereference in error path 2009-03-10 15:55:11 -07:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6 2009-03-12 09:27:53 -07:00
nubus
of drivers/of: Add the of_find_i2c_device_by_node function. 2009-01-09 15:49:06 -07:00
oprofile oprofile: fix uninitialized use of struct op_entry 2009-01-17 17:26:39 +01:00
parisc parisc: sba_iommu: fix build bug when CONFIG_PARISC_AGP=y 2009-03-15 13:36:22 -07:00
parport m68k: atari - Rename "mfp" to "st_mfp" 2009-02-22 09:23:02 -08:00
pci PCIe: portdrv: call pci_disable_device during remove 2009-03-12 15:42:35 -04:00
pcmcia powerpc: Change u64/s64 to a long long integer type 2009-01-13 14:47:59 +11:00
platform acer-wmi: fix regression in backlight detection 2009-03-12 16:20:24 -07:00
pnp Merge branch 'linus' into release 2009-01-09 03:39:43 -05:00
power ds2760_battery.c: fix division by zero 2009-03-12 16:20:23 -07:00
ps3 powerpc/ps3: Printing fixups for l64 to ll64 conversion drivers/ps3 2009-01-16 16:15:14 +11:00
rapidio rapidio: remove excess kernel-doc notation 2009-01-06 15:59:28 -08:00
regulator leds: Fix bounds checking of wm8350->pmic.led 2009-01-30 21:50:49 +00:00
rtc rtc: t reaches -1, tested 0 2009-02-11 14:25:36 -08:00
s390 [S390] fix "mem=" handling in case of standby memory 2009-02-19 15:19:19 +01:00
sbus sparc64: wait_event_interruptible_timeout may return -ERESTARTSYS 2009-03-04 00:19:28 -08:00
scsi Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6 2009-03-14 12:01:37 -07:00
serial Merge branch 'sh/for-2.6.29' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 2009-02-27 16:40:00 -08:00
sh
sn
spi spi-gpio: sanitize MISO bitvalue 2009-02-18 15:37:56 -08:00
ssb
staging Staging: w35und: fix usb_control_msg() error handling in wb35_probe() 2009-02-27 12:56:24 -08:00
tc
telephony
thermal
uio
usb USB: musb: fix srp sysfs entry deletion 2009-02-27 14:40:51 -08:00
uwb uwb: lock rc->rsvs_lock with spin_lock_bh() 2009-01-23 12:57:20 +00:00
video Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2009-03-11 12:14:04 -07:00
virtio virtio-pci: do not oops on config change if driver not loaded 2009-02-02 19:17:56 -08:00
w1 drivers/w1/masters/w1-gpio.c: fix read_bit() 2009-03-12 16:20:23 -07:00
watchdog [WATCHDOG] orion5x_wdt.c: 'ORION5X_TCLK' undeclared 2009-03-05 19:25:05 +00:00
xen PM: Split up sysdev_[suspend|resume] from device_power_[down|up] 2009-02-22 10:33:44 -08:00
zorro m68k: zorro - Use %pR to print resources 2009-01-12 20:56:43 +01:00
Kconfig
Makefile Merge branch 'drivers-platform' into release 2009-01-09 04:56:56 -05:00