NeilBrown 31c176ecdf md/raid5: avoid reading from known bad blocks. ... There are two times that we might read in raid5: 1/ when a read request fits within a chunk on a single working device. In this case, if there is any bad block in the range of the read, we simply fail the cache-bypass read and perform the read though the stripe cache. 2/ when reading into the stripe cache. In this case we mark as failed any device which has a bad block in that strip (1 page wide). Note that we will both avoid reading and avoid writing. This is correct (as we will never read from the block, there is no point writing), but not optimal (as writing could 'fix' the error) - that will be addressed later. If we have not seen any write errors on the device yet, we treat a bad block like a recent read error. This will encourage an attempt to fix the read error which will either generate a write error, or will ensure good data is stored there. We don't yet forget the bad block in that case. That comes later. Now that we honour bad blocks when reading we can allow devices with bad blocks into the array. Signed-off-by: NeilBrown <neilb@suse.de>		2011-07-28 11:39:22 +10:00
..
accessibility
acpi	Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6	2011-05-29 11:19:16 -07:00
amba	ARM: 6829/1: amba: make hardcoded periphid override hardware	2011-05-26 10:33:34 +01:00
ata	ahci: change 'masking port_map' printk to KERN_WARNING level	2011-06-29 10:10:07 -07:00
atm
auxdisplay
base	mm: Move definition of MIN_MEMORY_BLOCK_SIZE to a header	2011-07-12 11:08:01 +10:00
bcma	drivers/bcma/host_pci.c needs slab.h	2011-05-26 17:12:32 -07:00
block	Merge branch 'for-3.0-important' of git://git.drbd.org/linux-2.6-drbd into for-linus	2011-06-30 10:10:50 +02:00
bluetooth	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 into for-davem	2011-06-17 12:40:36 -04:00
cdrom	block: fix mismerge of the DISK_EVENT_MEDIA_CHANGE removal	2011-06-02 05:29:19 +09:00
char	agp/intel: Fix typo in G4x_GMCH_SIZE_VT_2M	2011-07-13 07:44:27 +01:00
clk
clocksource	Revert "clocksource: sh_cmt: Runtime PM support"	2011-05-31 15:26:42 +09:00
connector	Connector: Correctly set the error code in case of success when dispatching receive callbacks	2011-06-07 12:02:00 -07:00
cpufreq	[CPUFREQ] fix cpumask memory leak in acpi-cpufreq on cpu hotplug.	2011-07-10 17:03:04 -04:00
cpuidle	Merge branch 'idle-release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-idle-2.6	2011-05-29 11:18:09 -07:00
crypto	crypto: caam - fix operator precedence in shared descriptor allocation	2011-06-30 07:43:27 +08:00
dca
dio
dma	dmaengine: shdma: SH_DMAC_MAX_CHANNELS message fix	2011-06-14 15:03:07 +09:00
edac	edac,rcu: use synchronize_rcu() instead of call_rcu()+rcu_barrier()	2011-05-26 17:12:37 -07:00
eisa
firewire	firewire: ohci: do not bind to Pinnacle cards, avert panic	2011-07-10 12:53:27 +02:00
firmware	Merge branch 'driver-core-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6	2011-06-28 11:15:36 -07:00
gpio	gpio: wm831x: add a missing break in wm831x_gpio_dbg_show	2011-07-15 14:03:30 -06:00
gpu	Merge branch 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6	2011-07-13 14:04:26 -07:00
hid	HID: hid-multitouch: add support for a new Lumio dual-touch panel	2011-06-24 13:41:11 +02:00
hwmon	hwmon: (adm1275) Fix coefficients per datasheet revision B	2011-07-15 08:09:40 -07:00
hwspinlock
i2c	Merge branch 'for-30-rc5/all-i2c' of git://git.fluff.org/bjdooks/linux	2011-07-07 16:29:29 -07:00
ide	ide-cd: signedness warning fix again	2011-06-11 15:06:48 -07:00
idle
ieee802154
infiniband	RDMA: Check for NULL mode in .devnode methods	2011-07-04 15:53:28 -07:00
input	input: pmic8xxx-pwrkey: Do not use mfd_get_data()	2011-07-05 10:38:43 +02:00
isdn	gigaset: call module_put before restart of if_open()	2011-06-17 15:27:32 -04:00
leds	drivers/leds/leds-pca9532.c: change driver name to be unique	2011-07-08 21:14:44 -07:00
lguest
macintosh
mca
md	md/raid5: avoid reading from known bad blocks.	2011-07-28 11:39:22 +10:00
media	Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6	2011-07-11 16:43:27 -07:00
memstick
message
mfd	w1: ds1wm: add a reset recovery parameter	2011-07-08 21:14:44 -07:00
misc	Merge branch 'driver-core-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6	2011-06-28 11:15:36 -07:00
mmc	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc	2011-07-13 16:47:31 -07:00
mtd	powerpc/85xx: fix NAND_CMD_READID read bytes number	2011-06-22 06:08:48 -05:00
net	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6	2011-07-13 13:51:32 -07:00
nfc
nubus
of
oprofile	oprofile: Fix locking dependency in sync_start()	2011-05-31 16:33:34 +02:00
parisc
parport	Merge branch 'trivial' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6	2011-05-26 13:19:00 -07:00
pci	PCI: conditional resource-reallocation through kernel parameter pci=realloc	2011-07-08 15:49:20 -07:00
pcmcia	pcmcia: pxa2xx/vpac270: free gpios on exist rather than requesting	2011-07-11 14:26:34 +08:00
platform	hp-wmi: fix use after free	2011-07-11 09:52:35 -04:00
pnp
power	Merge git://git.infradead.org/battery-2.6	2011-05-27 10:12:35 -07:00
pps
ps3
ptp	ptp: Fix some locking bugs in ptp_read()	2011-06-01 19:29:10 -07:00
rapidio
regulator	regulator: max8997: Fix setting inappropriate value for ramp_delay variable	2011-07-08 19:14:58 +01:00
rtc	drivers/rtc/rtc-ds1307.c: add support for RTC device pt7c4338	2011-06-27 18:00:12 -07:00
s390	[S390] qdio: Split SBAL entry flags	2011-06-06 14:14:56 +02:00
sbus
scsi	[SCSI] isci: fix checkpatch errors	2011-07-03 14:26:24 -05:00
sfi
sh	drivers: sh: resume enabled clocks fix	2011-06-14 15:15:25 +09:00
sn
spi	spi/s3c64xx: Bug fix for SPI with different FIFO level	2011-07-06 15:03:08 +09:00
ssb	ssb: fix init regression of hostmode PCI core	2011-07-07 13:06:08 -04:00
staging	Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6	2011-07-06 12:16:49 -07:00
target	tcm_fc: Fix conversion spec warning	2011-06-24 00:09:16 +00:00
tc
telephony
thermal
tty	Merge branch 'at91/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/linux-2.6-arm-soc	2011-07-04 15:54:18 -07:00
uio
usb	USB: additional regression fix for device removal	2011-07-07 13:29:33 -07:00
uwb
vhost	vhost: support event index	2011-05-30 11:14:15 +09:30
video	vesafb: fix memory leak	2011-07-04 16:02:48 +09:00
virtio	virtio: add api for delayed callbacks	2011-05-30 11:14:16 +09:30
vlynq
w1	w1: ds1wm: add a reset recovery parameter	2011-07-08 21:14:44 -07:00
watchdog	watchdog: update author email for at32ap700x_wdt	2011-06-28 20:01:25 +00:00
xen	Merge branch 'stable/bug.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen	2011-06-20 09:01:33 -07:00
zorro
Kconfig
Makefile	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx	2011-05-28 12:35:15 -07:00