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d612d309e4
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Philipp Reisner d612d309e4 drbd: No longer answer P_RS_DATA_REQUEST packets when in C_AHEAD mode 
When the sync source node replies to a P_RS_DATA_REQUEST packet
when it is already in ahead mode. I.e. those two packets
crossed each other on the wire, that may lead to diverging
bitmaps.

  This never happens in a well-tuned-system. In a well-tuned-
  system the resync controller has reduced the resync speed
  to zero long before we got into ahead-mode.

But we have to be prepared for the not-well-tuned-system
of course as well.
Because -> diverging bitmaps = non terminating resync.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2011-03-10 11:45:25 +01:00
..
aoe drivers/block/aoe/Makefile: replace the use of <module>-objs with <module>-y 2011-01-19 08:25:02 -07:00
drbd drbd: No longer answer P_RS_DATA_REQUEST packets when in C_AHEAD mode 2011-03-10 11:45:25 +01:00
paride paride: Convert to bdops->check_events() 2011-03-09 19:54:28 +01:00
amiflop.c floppy,{ami|ata}flop: Convert to bdops->check_events() 2011-03-09 19:54:27 +01:00
ataflop.c floppy,{ami|ata}flop: Convert to bdops->check_events() 2011-03-09 19:54:27 +01:00
brd.c Merge branch 'for-2.6.37/barrier' of git://git.kernel.dk/linux-2.6-block 2010-10-22 17:07:18 -07:00
cciss_cmd.h cciss: reinstate proper FIFO order of command queue list 2011-01-10 21:50:33 +01:00
cciss_scsi.c SCSI host lock push-down 2010-11-16 13:33:23 -08:00
cciss_scsi.h
cciss.c block: remove per-queue plugging 2011-03-10 08:52:07 +01:00
cciss.h Merge branch 'for-2.6.38/drivers' of git://git.kernel.dk/linux-2.6-block 2011-01-13 10:50:24 -08:00
cpqarray.c block: remove per-queue plugging 2011-03-10 08:52:07 +01:00
cpqarray.h
cryptoloop.c
DAC960.c dac960: Convert to bdops->check_events() 2011-03-09 19:54:28 +01:00
DAC960.h
floppy.c Merge branch 'for-2.6.39/stack-plug' into for-2.6.39/core 2011-03-10 08:58:35 +01:00
hd.c
ida_cmd.h
ida_ioctl.h
Kconfig xen: separate out frontend xenbus 2011-01-05 16:29:17 -05:00
loop.c Merge branch 'for-2.6.39/stack-plug' into for-2.6.39/core 2011-03-10 08:58:35 +01:00
Makefile drivers/block/Makefile: replace the use of <module>-objs with <module>-y 2011-01-19 08:25:02 -07:00
mg_disk.c block: switch s390 tape_block and mg_disk to elevator_change() 2010-08-23 14:02:44 +02:00
nbd.c nbd: remove module-level ioctl mutex 2011-02-11 16:12:20 -08:00
osdblk.c block: remove spurious uses of REQ_HARDBARRIER 2010-09-10 12:35:36 +02:00
pktcdvd.c Merge branch 'for-2.6.39/stack-plug' into for-2.6.39/core 2011-03-10 08:58:35 +01:00
ps3disk.c Merge branch 'for-2.6.37/barrier' of git://git.kernel.dk/linux-2.6-block 2010-10-22 17:07:18 -07:00
ps3vram.c
rbd_types.h rbd: introduce rados block device (rbd), based on libceph 2010-10-20 15:38:13 -07:00
rbd.c rbd: fix cleanup when trying to mount inexistent image 2011-01-12 15:15:18 -08:00
smart1,2.h
sunvdc.c
swim3.c swim[3]: Convert to bdops->check_events() 2011-03-09 19:54:28 +01:00
swim_asm.S
swim.c swim[3]: Convert to bdops->check_events() 2011-03-09 19:54:28 +01:00
sx8.c
ub.c ub: Convert to bdops->check_events() 2011-03-09 19:54:28 +01:00
umem.c Merge branch 'for-2.6.39/stack-plug' into for-2.6.39/core 2011-03-10 08:58:35 +01:00
umem.h
viodasd.c block: autoconvert trivial BKL users to private mutex 2010-10-05 15:01:10 +02:00
virtio_blk.c Merge branch 'for-2.6.37/barrier' of git://git.kernel.dk/linux-2.6-block 2010-10-22 17:07:18 -07:00
xd.c block: autoconvert trivial BKL users to private mutex 2010-10-05 15:01:10 +02:00
xd.h
xen-blkfront.c Merge branch 'for-2.6.38' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq 2011-01-07 16:58:04 -08:00
xsysace.c xsysace: Convert to bdops->check_events() 2011-03-09 19:54:28 +01:00
z2ram.c drivers/block/z2ram.c: correct printing of sector_t 2010-10-28 06:15:26 -06:00