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Dan Williams 6bfe0b4990 md: support blocking writes to an array on device failure 
Allows a userspace metadata handler to take action upon detecting a device
failure.

Based on an original patch by Neil Brown.

Changes:
-added blocked_wait waitqueue to rdev
-don't qualify Blocked with Faulty always let userspace block writes
-added md_wait_for_blocked_rdev to wait for the block device to be clear, if
 userspace misses the notification another one is sent every 5 seconds
-set MD_RECOVERY_NEEDED after clearing "blocked"
-kill DoBlock flag, just test mddev->external

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-30 08:29:33 -07:00
..
acpi ACPI, cpuidle: Clarify C-state description in sysfs 2008-02-14 00:09:55 -05:00
asm-alpha kernel: Move arches to use common unaligned access 2008-04-29 08:06:27 -07:00
asm-arm pxafb: preliminary smart panel interface support 2008-04-30 08:29:32 -07:00
asm-avr32 kernel: Move arches to use common unaligned access 2008-04-29 08:06:27 -07:00
asm-blackfin kernel: Move arches to use common unaligned access 2008-04-29 08:06:27 -07:00
asm-cris kernel: Move arches to use common unaligned access 2008-04-29 08:06:27 -07:00
asm-frv kernel: Move arches to use common unaligned access 2008-04-29 08:06:27 -07:00
asm-generic kernel: Move arches to use common unaligned access 2008-04-29 08:06:27 -07:00
asm-h8300 kernel: Move arches to use common unaligned access 2008-04-29 08:06:27 -07:00
asm-ia64 [IA64] Provide ACPI fixup for /proc/cpuinfo/physical_id 2008-04-29 15:05:29 -07:00
asm-m32r kernel: Move arches to use common unaligned access 2008-04-29 08:06:27 -07:00
asm-m68k kernel: Move arches to use common unaligned access 2008-04-29 08:06:27 -07:00
asm-m68knommu kernel: Move arches to use common unaligned access 2008-04-29 08:06:27 -07:00
asm-mips kernel: Move arches to use common unaligned access 2008-04-29 08:06:27 -07:00
asm-mn10300 kernel: Move arches to use common unaligned access 2008-04-29 08:06:27 -07:00
asm-parisc kernel: Move arches to use common unaligned access 2008-04-29 08:06:27 -07:00
asm-powerpc Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2008-04-29 08:19:14 -07:00
asm-ppc [RAPIDIO] Move include/asm-ppc/rio.h to asm-powerpc 2008-04-29 19:40:27 +10:00
asm-s390 kernel: Move arches to use common unaligned access 2008-04-29 08:06:27 -07:00
asm-sh kernel: Move arches to use common unaligned access 2008-04-29 08:06:27 -07:00
asm-sparc kernel: Move arches to use common unaligned access 2008-04-29 08:06:27 -07:00
asm-sparc64 kernel: Move arches to use common unaligned access 2008-04-29 08:06:27 -07:00
asm-um kernel: Move arches to use common unaligned access 2008-04-29 08:06:27 -07:00
asm-v850 kernel: Move arches to use common unaligned access 2008-04-29 08:06:27 -07:00
asm-x86 [IA64] Provide ACPI fixup for /proc/cpuinfo/physical_id 2008-04-29 15:05:29 -07:00
asm-xtensa kernel: Move arches to use common unaligned access 2008-04-29 08:06:27 -07:00
crypto [CRYPTO] aes: Export generic setkey 2008-04-21 10:19:34 +08:00
keys KEYS: Fix the comment to match the file name in rxrpc-type.h. 2008-04-21 22:43:55 +00:00
linux md: support blocking writes to an array on device failure 2008-04-30 08:29:33 -07:00
math-emu
media Merge git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb 2008-04-29 14:53:40 -07:00
mtd UBI: make ubi-header.h local 2008-04-17 11:31:58 +03:00
net Merge branch 'audit.b50' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current 2008-04-29 11:41:22 -07:00
pcmcia
rdma IB: expand ib_umem_get() prototype 2008-04-29 08:06:12 -07:00
rxrpc
scsi IB/iser: Count FMR alignment violations per session 2008-04-29 13:46:52 -07:00
sound [ALSA] Add MPU401_INFO_NO_ACK bitflag 2008-04-29 19:01:56 +02:00
video fbdev: platforming hecubafb and n411 2008-04-28 08:58:41 -07:00
xen xen: add balloon driver 2008-04-24 23:57:33 +02:00
Kbuild