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b875e531fc
linux/drivers
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NeilBrown b875e531fc [PATCH] md: fix innocuous bug in raid6 stripe_to_pdidx 
stripe_to_pdidx finds the index of the parity disk for a given stripe.  It
assumes raid5 in that it uses "disks-1" to determine the number of data disks.

This is incorrect for raid6 but fortunately the two usages cancel each other
out.  The only way that 'data_disks' affects the calculation of pd_idx in
raid5_compute_sector is when it is divided into the sector number.  But as
that sector number is calculated by multiplying in the wrong value of
'data_disks' the division produces the right value.

So it is innocuous but needs to be fixed.

Also change the calculation of raid_disks in compute_blocknr to make it
more obviously correct (it seems at first to always use disks-1 too).

Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-10 09:57:21 -08:00
..
acorn IRQ: Maintain regs pointer globally rather than passing to IRQ handlers 2006-10-05 15:10:12 +01:00
acpi Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 2006-12-05 17:01:28 +00:00
amba [ARM] Fix __must_check warnings in drivers/bus/amba.c 2006-11-30 14:04:49 +00:00
ata [PATCH] libata: Incorrect timing computation for PIO5/6 2006-12-07 07:37:07 -05:00
atm [PATCH] atm/ambassador: use bitrev8 2006-12-08 08:28:40 -08:00
base Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6 2006-12-07 08:59:11 -08:00
block [PATCH] struct path: convert nbd 2006-12-08 08:28:47 -08:00
bluetooth [PATCH] lockdep: annotate bcsp driver 2006-12-07 08:39:34 -08:00
cdrom [PATCH] drivers/cdrom/*: trivial vsnprintf() conversion 2006-12-07 08:39:35 -08:00
char [PATCH] sysctl: remove unused "context" param 2006-12-10 09:55:41 -08:00
clocksource [PATCH] time: re-add verify_pmtmr_rate 2006-12-08 08:28:37 -08:00
connector WorkStruct: make allyesconfig 2006-11-22 14:57:56 +00:00
cpufreq [PATCH] hotplug CPU: clean up hotcpu_notifier() use 2006-12-07 08:39:39 -08:00
crypto [PATCH] geode crypto is PCI device 2006-12-10 09:55:40 -08:00
dio
dma [PATCH] slab: remove SLAB_KERNEL 2006-12-07 08:39:24 -08:00
edac [PATCH] Add include/linux/freezer.h and move definitions from sched.h 2006-12-07 08:39:27 -08:00
eisa [PATCH] EISA: handle sysfs errors 2006-10-11 11:14:25 -07:00
fc4 [SCSI] fc4: Conversion to struct scsi_cmnd in fc4 2006-10-25 15:12:45 -07:00
firmware [PATCH] dell_rbu: fix error check 2006-11-16 11:43:38 -08:00
hid [PATCH] Generic HID layer - build 2006-12-08 10:43:20 -08:00
hwmon [PATCH] severing fs.h, radix-tree.h -> sched.h 2006-12-04 02:00:24 -05:00
i2c [PATCH] struct path: convert i2c-drivers 2006-12-08 08:28:45 -08:00
ide [PATCH] ide-cd: Handle strange interrupt on the Intel ESB2 2006-12-10 09:57:20 -08:00
ieee1394 [PATCH] struct path: convert ieee1394 2006-12-08 08:28:46 -08:00
infiniband [PATCH] LOG2: Implement a general integer log2 facility in the kernel 2006-12-08 08:28:51 -08:00
input [PATCH] ucb1400_ts depends SND_AC97_BUS 2006-12-10 09:55:39 -08:00
isdn [PATCH] Don't build some broken ISDN drivers on big endian MIPS 2006-12-10 09:55:42 -08:00
leds [PATCH] PCEngines WRAP LED Support 2006-12-07 08:39:36 -08:00
macintosh Merge rsync://rsync.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 2006-12-08 01:07:56 -05:00
mca [PATCH] drivers/mca: handle sysfs errors 2006-10-11 11:14:25 -07:00
md [PATCH] md: fix innocuous bug in raid6 stripe_to_pdidx 2006-12-10 09:57:21 -08:00
media [PATCH] struct path: convert v4l 2006-12-08 08:28:50 -08:00
message [PATCH] kernel-doc: fix fusion and i2o docs 2006-12-07 08:39:40 -08:00
mfd [PATCH] Add include/linux/freezer.h and move definitions from sched.h 2006-12-07 08:39:27 -08:00
misc [PATCH] tifm: fix NULL ptr and style 2006-12-07 08:39:33 -08:00
mmc Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc 2006-12-08 08:47:07 -08:00
mtd [PATCH] slab: remove SLAB_KERNEL 2006-12-07 08:39:24 -08:00
net [PATCH] Amiga PCMCIA NE2000 Ethernet dev->irq init 2006-12-09 09:41:18 -08:00
nubus
oprofile [PATCH] struct path: convert oprofile 2006-12-08 08:28:48 -08:00
parisc Fix misc .c/.h comment typos 2006-11-30 05:24:39 +01:00
parport [PATCH] Kconfig refactoring for better menu nesting 2006-12-10 09:55:39 -08:00
pci [PATCH] Kconfig refactoring for better menu nesting 2006-12-10 09:55:39 -08:00
pcmcia [PATCH] struct path: convert pcmcia 2006-12-08 08:28:48 -08:00
pnp [PATCH] struct path: convert isapnp 2006-12-08 08:28:46 -08:00
ps3 [POWERPC] ps3: multiplatform build fixes 2006-12-04 20:41:16 +11:00
rapidio Fix several typos in drivers/ 2006-10-03 22:31:37 +02:00
rtc [PATCH] AT91RM9200 RTC 2006-12-10 09:55:40 -08:00
s390 Merge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6 2006-12-08 11:21:55 -08:00
sbus [PATCH] struct path: convert sbus 2006-12-08 08:28:49 -08:00
scsi [PATCH] Sun3 SCSI: Make sun3 scsi drivers compile/work again 2006-12-09 09:41:18 -08:00
serial [PATCH] Kconfig refactoring for better menu nesting 2006-12-10 09:55:39 -08:00
sh
sn [PATCH] ioc4: Enable build on non-SN2 2006-10-17 08:18:42 -07:00
spi [PATCH] spi: stabilize PIO mode transfers on PXA2xx systems 2006-12-10 09:55:40 -08:00
tc [PATCH] tty: switch to ktermios 2006-12-08 08:28:57 -08:00
telephony [PATCH] struct path: convert ixj 2006-12-08 08:28:46 -08:00
usb [PATCH] Generic HID layer - build 2006-12-08 10:43:20 -08:00
video [PATCH] Fbdev driver for IBM GXT4500P videocards 2006-12-10 09:57:20 -08:00
w1 [PATCH] better CONFIG_W1_SLAVE_DS2433_CRC handling 2006-12-07 08:39:43 -08:00
zorro [PATCH] struct path: convert zorro 2006-12-08 08:28:50 -08:00
Kconfig [PATCH] Generic HID layer - build 2006-12-08 10:43:20 -08:00
Makefile [PATCH] Generic HID layer - build 2006-12-08 10:43:20 -08:00