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NeilBrown 4254376914 [PATCH] md: Don't write dirty/clean update to spares - leave them alone 
- record the 'event' count on each individual device (they
  might sometimes be slightly different now)
- add a new value for 'sb_dirty': '3' means that the super
  block only needs to be updated to record a clean<->dirty
  transition.
- Prefer odd event numbers for dirty states and even numbers
  for clean states
- Using all the above, don't update the superblock on
  a spare device if the update is just doing a clean-dirty
  transition.  To accomodate this, a transition from
  dirty back to clean might now decrement the events counter
  if nothing else has changed.

The net effect of this is that spare drives will not see any IO requests
during normal running of the array, so they can go to sleep if that is what
they want to do.

Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
 		2006-06-26 09:58:39 -07:00
..
acorn
…
acpi [PATCH] Time: i386 Conversion - part 2: Rework TSC Support 2006-06-26 09:58:21 -07:00
amba
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atm [SPARC]: Kill __irq_itoa(). 2006-06-20 01:21:29 -07:00
base [PATCH] core: use list_move() 2006-06-26 09:58:17 -07:00
block [PATCH] CCISS: tidy up product table indentation 2006-06-25 10:01:22 -07:00
bluetooth [PATCH] Bluetooth: fix potential NULL ptr deref in dtl1_cs.c::dtl1_hci_send_frame() 2006-06-26 09:58:16 -07:00
cdrom [PATCH] cdrom/mcdx: section fixes 2006-06-25 10:01:16 -07:00
char [PATCH] VT binding: Make VT binding a Kconfig option 2006-06-26 09:58:33 -07:00
clocksource [PATCH] GTOD: add scx200 HRT clocksource 2006-06-26 09:58:21 -07:00
connector [PATCH] connector-exports 2006-06-23 07:43:06 -07:00
cpufreq [PATCH] cpufreq build fix 2006-06-23 08:47:27 -07:00
crypto
…
dio
…
dma [I/OAT]: Do not use for_each_cpu(). 2006-06-17 21:25:58 -07:00
edac [PATCH] EDAC Coexistence with BIOS 2006-05-03 20:05:41 -07:00
eisa
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fc4 [SPARC]: Kill __irq_itoa(). 2006-06-20 01:21:29 -07:00
firmware [PATCH] DMI: cleanup kernel-doc, add to DocBook 2006-06-25 10:01:24 -07:00
hwmon [PATCH] hwmon-vid: Add support for Intel Core and Conroe 2006-06-22 11:10:36 -07:00
i2c Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2006-06-22 22:11:30 -07:00
ide [PATCH] Remove code that has long been commented out from pdc20265_old 2006-06-26 09:58:28 -07:00
ieee1394 [PATCH] drivers: use list_move() 2006-06-26 09:58:18 -07:00
infiniband [PATCH] drivers: use list_move() 2006-06-26 09:58:18 -07:00
input [PATCH] random: remove redundant SA_SAMPLE_RANDOM from touchscreen drivers 2006-06-25 10:01:00 -07:00
isdn [PATCH] isdn4linux: Gigaset driver cleanup 2006-06-26 09:58:23 -07:00
leds [PATCH] LED: add LED heartbeat trigger 2006-06-25 10:01:23 -07:00
macintosh [PATCH] Rewritten backlight infrastructure for portable Apple computers 2006-06-25 10:00:59 -07:00
mca
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md [PATCH] md: Don't write dirty/clean update to spares - leave them alone 2006-06-26 09:58:39 -07:00
media [PATCH] drivers: use list_move() 2006-06-26 09:58:18 -07:00
message Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2006-06-21 11:18:25 -07:00
mfd
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misc [PATCH] VFS: Permit filesystem to override root dentry on mount 2006-06-23 07:42:45 -07:00
mmc [ARM] 3565/1: AT91RM9200 MMC update 2006-06-19 13:06:05 +01:00
mtd [MTD] NAND: Fix breakage all over the place 2006-06-20 20:31:24 +01:00
net [PATCH] Add bcm43xx HW RNG support 2006-06-26 09:58:19 -07:00
nubus
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oprofile [PATCH] oprofile: convert from semaphores to mutexes 2006-06-25 10:01:04 -07:00
parisc [PARISC] Document that we tolerate "Relaxed Ordering" 2006-04-21 22:20:33 +00:00
parport [PATCH] parport: add to kernel-doc 2006-06-25 10:01:25 -07:00
pci [PATCH] PCI: nVidia quirk to make AER PCI-E extended capability visible 2006-06-21 12:00:01 -07:00
pcmcia [ARM] Fix badge4 build error 2006-06-19 15:37:31 +01:00
pnp [PATCH] pnp: card_probe(): fix memory leak 2006-06-25 10:01:01 -07:00
rapidio
…
rtc [PATCH] RTC: add rtc-ds1742 driver 2006-06-25 10:01:14 -07:00
s390 [PATCH] drivers: use list_move() 2006-06-26 09:58:18 -07:00
sbus [PATCH] mm: remove VM_LOCKED before remap_pfn_range and drop VM_SHM 2006-06-25 10:00:55 -07:00
scsi [PATCH] drivers: use list_move() 2006-06-26 09:58:18 -07:00
serial [PATCH] m68knommu: 532x UART support 2006-06-25 17:43:33 -07:00
sh
…
sn [PATCH] SGI IOC4: Detect IO card variant 2006-06-23 07:43:07 -07:00
spi [PATCH] s3c24xx: fix spi driver with CONFIG_PM 2006-05-26 11:55:46 -07:00
tc
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telephony [PATCH] pcmcia: use bitfield instead of p_state and state 2006-03-31 17:26:33 +02:00
usb [PATCH] drivers: use list_move() 2006-06-26 09:58:18 -07:00
video [PATCH] VT binding: Make sticon support binding 2006-06-26 09:58:34 -07:00
w1 [PATCH] connector-exports 2006-06-23 07:43:06 -07:00
zorro
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Kconfig [I/OAT]: DMA memcpy subsystem 2006-06-17 21:18:43 -07:00
Makefile [PATCH] Time: i386 Clocksource Drivers 2006-06-26 09:58:21 -07:00