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Mikulas Patocka 5528d17de1 dm raid1: fail writes if errors are not handled and log fails 
If the mirror log fails when the handle_errors option was not selected
and there is no remaining valid mirror leg, writes return success even
though they weren't actually written to any device.  This patch
completes them with EIO instead.

This code path is taken:
do_writes:
	bio_list_merge(&ms->failures, &sync);
do_failures:
	if (!get_valid_mirror(ms)) (false)
	else if (errors_handled(ms)) (false)
	else bio_endio(bio, 0);

The logic in do_failures is based on presuming that the write was already
tried: if it succeeded at least on one leg (without handle_errors) it
is reported as success.

Reference: https://bugzilla.redhat.com/show_bug.cgi?id=555197

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
 		2010-02-16 18:42:55 +00:00
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accessibility
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acpi Merge branch 'bugzilla-14954' into release 2010-01-20 01:26:22 -05:00
amba
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ata [libata] Call flush_dcache_page after PIO data transfers in libata-sff.c 2010-02-04 01:04:50 -05:00
atm
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auxdisplay
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base Revert "sysdev: fix prototype for memory_sysdev_class show/store functions" 2010-01-20 15:02:13 -08:00
block cciss: Make cciss_seq_show handle holes in the h->drv[] array 2010-02-05 13:15:36 +01:00
bluetooth Bluetooth: Fix memory leak in Marvell BT-over-SDIO driver 2010-02-03 19:08:30 -08:00
cdrom
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char Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-02-11 14:01:10 -08:00
clocksource
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connector connector: Delete buggy notification code. 2010-02-02 15:58:48 -08:00
cpufreq [CPUFREQ] Fix ondemand to not request targets outside policy limits 2010-01-13 10:55:16 -05:00
cpuidle drivers/cpuidle/governors/menu.c: fix undefined reference to `__udivdi3' 2010-01-11 09:34:07 -08:00
crypto crypto: padlock-sha - Add import/export support 2010-02-02 06:50:25 +11:00
dca
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dio
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dma drivers/dma: Correct NULL test 2010-02-10 12:07:28 -07:00
edac Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp 2010-02-11 14:07:13 -08:00
eisa
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firewire firewire: ohci: retransmit isochronous transmit packets on cycle loss 2010-02-14 15:10:41 +01:00
firmware
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gpio gpio: adp5588-gpio: new driver for ADP5588 GPIO expanders 2010-01-11 09:34:07 -08:00
gpu drm/radeon/kms: make sure retry count increases. 2010-02-15 15:24:48 +10:00
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid 2010-01-13 16:10:13 -08:00
hwmon hwmon: (w83781d) Request I/O ports individually for probing 2010-02-05 19:58:36 +01:00
i2c i2c-tiny-usb: Fix on big-endian systems 2010-02-05 17:48:13 +01:00
ide
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idle
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ieee1394
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ieee802154
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infiniband Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband 2010-02-11 14:01:25 -08:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2010-02-11 14:03:42 -08:00
isdn Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2010-01-12 20:53:29 -08:00
leds
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lguest
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macintosh powerpc/macintosh: Make Open Firmware device id constant 2010-01-15 13:26:04 +11:00
mca
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md dm raid1: fail writes if errors are not handled and log fails 2010-02-16 18:42:55 +00:00
media V4L/DVB: dvb-core: fix initialization of feeds list in demux filter 2010-02-08 10:47:17 -02:00
memstick
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message [SCSI] mptfusion : mptscsih_abort return value should be SUCCESS instead of value 0. 2010-02-08 13:40:17 -06:00
mfd mfd: Fix asic3 build 2010-01-29 21:03:09 +01:00
misc
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mmc mmc_test: block addressed cards 2010-02-11 13:59:42 -08:00
mtd Merge branch 'for-linus' of git://git.infradead.org/ubi-2.6 2010-01-28 12:57:50 -08:00
net drivers/net: Correct NULL test 2010-02-08 22:44:18 -08:00
nubus
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of
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oprofile
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parisc
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parport
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pci CS5536: apply pci quirk for BIOS SMBUS bug 2010-02-05 07:36:50 -08:00
pcmcia
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platform Merge branch 'misc' into release 2010-01-20 01:23:27 -05:00
pnp
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power wm97xx_battery: Handle missing platform data gracefully 2010-01-29 17:00:18 +03:00
pps
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ps3
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rapidio
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regulator regulator/lp3971: vol_map out of bounds in lp3971_{ldo,dcdc}_set_voltage() 2010-02-12 11:39:49 +00:00
rtc rtc-fm3130: add missing braces 2010-02-02 18:11:21 -08:00
s390 Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6 2010-02-11 14:05:55 -08:00
sbus
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scsi [SCSI] qla2xxx: Obtain proper host structure during response-queue processing. 2010-02-08 13:45:55 -06:00
serial uartlite: fix crash when using as console 2010-02-02 18:11:22 -08:00
sfi
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sh
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sn
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spi spi: spi_sh_msiof: Fixed data sampling on the correct edge 2010-02-02 11:29:15 +09:00
ssb
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staging Merge branch 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 2010-02-01 10:46:49 -08:00
tc
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telephony
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thermal
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uio
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usb usb: r8a66597-hcd: Fix up spinlock recursion in root hub polling. 2010-02-05 11:53:28 +09:00
uwb
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video imxfb: correct location of callbacks in suspend and resume 2010-02-02 18:11:22 -08:00
virtio virtio: fix section mismatch warnings 2010-01-16 12:15:39 -08:00
vlynq
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w1
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watchdog [WATCHDOG] sbc_fitpc2_wdt: fix I/O space access technique. 2010-01-25 19:48:49 +00:00
xen xen: fix hang on suspend. 2010-01-13 10:01:35 +00:00
zorro
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Kconfig
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Makefile
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