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Milan Broz 3f1e9070f6 dm crypt: fix ctx pending 
Fix regression in dm-crypt introduced in commit
3a7f6c990a ("dm crypt: use async crypto").

If write requests need to be split into pieces, the code must not process them
in parallel because the crypto context cannot be shared.  So there can be
parallel crypto operations on one part of the write, but only one write bio
can be processed at a time.

This is not optimal and the workqueue code needs to be optimized for parallel
processing, but for now it solves the problem without affecting the
performance of synchronous crypto operation (most of current dm-crypt users).

http://bugzilla.kernel.org/show_bug.cgi?id=10242
http://bugzilla.kernel.org/show_bug.cgi?id=10207

Signed-off-by: Milan Broz <mbroz@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-03-28 14:45:22 -07:00
..
acorn/char Fix default compose table initialization 2008-03-03 14:53:16 -08:00
acpi revert "ACPI: drivers/acpi: elide a non-zero test on a result that is never 0" 2008-03-28 10:16:53 -07:00
amba
ata [libata] ahci: SB600 workaround is suspect... play it safe for now 2008-03-24 22:40:40 -04:00
atm fore2000 - fix misannotations 2008-03-17 07:56:31 -04:00
auxdisplay
base driver core: debug for bad dev_attr_show() return value. 2008-03-24 22:33:49 -07:00
block Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block 2008-03-18 07:43:14 -07:00
bluetooth Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2008-03-12 13:08:09 -07:00
cdrom make cdrom.c:check_for_audio_disc() static 2008-03-04 11:28:41 +01:00
char drivers/char/drm/ati_pcigart.c: fix printk warning 2008-03-28 14:45:21 -07:00
clocksource
connector connector: convert to single-threaded workqueue 2008-03-23 21:51:12 -07:00
cpufreq [CPUFREQ] fix section mismatch warnings 2008-03-05 14:45:31 -05:00
cpuidle cpuidle: fix 100% C0 statistics regression 2008-03-26 00:58:19 -04:00
crypto [HIFN]: Fix invalid config ifdefs for RNG support 2008-02-15 19:15:05 +08:00
dca
dio
dma fsldma: Fix the DMA halt when using DMA_INTERRUPT async_tx transfer. 2008-03-18 17:00:59 -07:00
edac
eisa
firewire firewire: fix panic in handle_at_packet 2008-03-20 18:13:05 +01:00
firmware dmi: prevent linked list corruption 2008-02-23 17:12:15 -08:00
gpio gpio/pca953x bugfix: mark as can_sleep 2008-03-10 18:01:19 -07:00
hid HID: update key codes for Apple aluminium 2008-03-18 11:20:33 +01:00
hwmon ibmpex: report temperatures in mC, not C 2008-03-19 18:53:36 -07:00
i2c i2c: Fix docbook problem 2008-03-23 20:28:20 +01:00
ide Revert "ide-tape: schedule driver for removal after 6 months" 2008-03-22 16:44:27 +01:00
ieee1394 ieee1394: sbp2: fix for SYM13FW500 bridge (Datafab disk) 2008-03-14 00:56:59 +01:00
infiniband RDMA/cxgb3: Program hardware IRD with correct value 2008-03-28 10:45:32 -07:00
input ixp4xx-beeper: add MODULE_ALIAS 2008-03-28 14:45:22 -07:00
isdn Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2008-03-12 13:08:09 -07:00
leds
lguest lguest: comment documentation update. 2008-03-28 11:05:54 +11:00
macintosh [POWERPC] Fix build of modular drivers/macintosh/apm_emu.c 2008-03-13 10:09:27 +11:00
mca
md dm crypt: fix ctx pending 2008-03-28 14:45:22 -07:00
media V4L/DVB (7367): bug #10211: Fix depencencies for cx2341x 2008-03-20 12:39:02 -03:00
memstick memstick: optimize setup of JMicron host parameters 2008-03-19 18:53:37 -07:00
message [SCSI] mpt fusion: Power Management fixes for MPT SAS PCI-E controllers 2008-03-18 15:13:40 -05:00
mfd sm501: add support for the SM502 programmable PLL 2008-03-04 16:35:13 -08:00
misc Merge branches 'release', 'ejd', 'sony' and 'wmi' into release 2008-03-13 01:59:52 -04:00
mmc mmc: use sysfs groups to handle conditional attributes 2008-03-22 17:02:20 -07:00
mtd mtd: nand: add out label in rfc_from4 2008-03-28 14:45:21 -07:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2008-03-26 18:35:50 -07:00
nubus
of
oprofile d_path: Make get_dcookie() use a struct path argument 2008-02-14 21:17:08 -08:00
parisc [PARISC] make ptr_to_pide() static 2008-03-15 19:17:12 -07:00
parport parport: section fixup 2008-02-13 16:21:19 -08:00
pci pci: revert SMBus unhide on HP Compaq nx6110 2008-03-28 14:45:22 -07:00
pcmcia PCI: drivers/pcmcia/i82092.c: fix up after pci_bus_region changes 2008-02-21 15:34:35 -08:00
pnp pnpacpi: reduce printk severity for "pnpacpi: exceeded the max number of ..." 2008-03-26 14:22:20 -04:00
power
ps3 [POWERPC] PS3: Update sys-manager button events 2008-02-14 22:11:01 +11:00
rapidio docbook: fix rapidio source files 2008-03-03 10:47:13 -08:00
rtc rtc-at91sam9 fixes 2008-03-19 18:53:37 -07:00
s390 [S390] zcrypt: fix ap_device_list handling 2008-03-05 12:37:19 +01:00
sbus
scsi [SCSI] a100u2w: fix bitmap lookup routine 2008-03-20 09:19:25 -05:00
serial serial: sh-sci: Fix fifo stall on SH7760/SH7780/SH7785 SCIF. 2008-03-11 13:58:50 +09:00
sh maple: fix device detection 2008-02-26 14:12:09 +09:00
sn ioc3.c: replace remaining __FUNCTION__ occurrences 2008-03-17 08:11:48 -04:00
spi spi_bitbang: short transfer status fix 2008-03-13 13:11:43 -07:00
ssb ssb: Add pcibios_enable_device() return value check 2008-03-04 18:36:35 -05:00
tc
telephony
thermal thermal: delete "default y" 2008-03-18 01:22:10 -04:00
uio UIO: add pgprot_noncached() to UIO mmap code 2008-03-24 22:33:49 -07:00
usb USB: ehci: stop vt6212 bus hogging 2008-03-24 22:26:15 -07:00
video blackfin video driver: fix bug when opening/reading/mmaping BF54x and BF52x framebuffer simultaneously 2008-03-28 14:45:22 -07:00
virtio virtio_pci: unregister virtio device at device remove 2008-03-28 11:05:51 +11:00
w1 ds1wm: report bus reset error 2008-03-04 16:35:12 -08:00
watchdog [WATCHDOG] make watchdog/hpwdt.c:asminline_call() static 2008-03-06 21:32:21 +00:00
xen
zorro
Kconfig
Makefile