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e4f925e12e
tmp_suning_uos_patched/drivers/block
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Philipp Reisner e4f925e12e drbd: Do not upgrade state to Outdated if already Inconsistent [Bugz 277] 
There was a race condition:
  In a situation with a SyncSource+Primary and a SyncTarget+Secondary node,
  and a resync dependency to some other device. After both nodes decided
  to do the resync, the other device finishes its resync process.
  At that time SyncSource already sent the P_SYNC_UUID packet, and
  already updated its peer disk state to Inconsistent.
  The SyncTarget node waits for the P_SYNC_UUID and sends a state packet
  to report the resync dependency change. That packet still carries
  a disk state of Outdated.

Impact:
  If application writes come in, during that time on the Primary node,
  those do not get replicated, and the out-of-sync counter gets increased.
  => The completion of resync is not detected on the primary node.
  => stalled.
  Those blocks get resync'ed with the next resync, since the are get
  marked as out-of-sync in the bitmap.

In order to fix this, we filter out that wrong state change in the
sanitize_state() function.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2010-05-18 01:01:05 +02:00
..
aoe include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
drbd drbd: Do not upgrade state to Outdated if already Inconsistent [Bugz 277] 2010-05-18 01:01:05 +02:00
paride Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block 2010-04-09 11:50:29 -07:00
amiflop.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
ataflop.c ataflop: Killl warning about unused variable flags 2010-02-27 18:27:15 +01:00
brd.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
cciss_cmd.h cciss: detect bad alignment of scsi commands at build time 2010-02-28 19:42:31 +01:00
cciss_scsi.c cciss: Fix problem with scatter gather elements in the scsi half of the driver 2010-02-28 19:42:32 +01:00
cciss_scsi.h cciss: remove C99-style comments 2010-02-22 13:44:45 +01:00
cciss.c cciss: unlock on error path 2010-04-07 08:38:03 -07:00
cciss.h cciss: do not use void pointer for scsi hba data 2010-02-28 19:42:32 +01:00
cpqarray.c block: Consolidate phys_segment and hw_segment limits 2010-02-26 13:58:08 +01:00
cpqarray.h
cryptoloop.c drivers: Remove unnecessary inclusions of asm/semaphore.h 2008-04-18 22:16:32 -04:00
DAC960.c block: Finalize conversion of block limits functions 2010-03-15 12:47:59 +01:00
DAC960.h
floppy.c drivers/block/floppy.c: remove unnecessary casting in fd_ioctl 2010-03-12 15:52:31 -08:00
hd.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
ida_cmd.h
ida_ioctl.h
Kconfig paride: fix menu indentation 2010-05-11 09:02:55 +02:00
loop.c Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block 2010-04-09 11:50:29 -07:00
Makefile The DRBD driver 2009-10-01 21:17:49 +02:00
mg_disk.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
nbd.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
osdblk.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
pktcdvd.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
ps3disk.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
ps3vram.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
smart1,2.h
sunvdc.c block: Consolidate phys_segment and hw_segment limits 2010-02-26 13:58:08 +01:00
swim3.c powerpc/macio: Rework hotplug media bay support 2009-12-09 17:09:14 +11:00
swim_asm.S m68k: mac - Add SWIM floppy support 2009-03-26 21:15:27 +01:00
swim.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
sx8.c block: Consolidate phys_segment and hw_segment limits 2010-02-26 13:58:08 +01:00
ub.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
umem.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
umem.h
viodasd.c Merge branch 'for-2.6.34' of git://git.kernel.dk/linux-2.6-block 2010-03-01 09:00:29 -08:00
virtio_blk.c Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block 2010-04-09 11:50:29 -07:00
xd.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
xd.h [PATCH] switch xd 2008-10-21 07:48:11 -04:00
xen-blkfront.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
xsysace.c block: make Open Firmware device id constant 2010-01-11 14:31:27 +01:00
z2ram.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00