md/raid10: fix refounct imbalance when resyncing an array with a replacement device.
authorNeilBrown <neilb@suse.com>
Thu, 2 Jun 2016 06:19:52 +0000 (16:19 +1000)
committerShaohua Li <shli@fb.com>
Mon, 13 Jun 2016 18:54:13 +0000 (11:54 -0700)
commit83f1261f5e5516d7cf58a04b97e4e63e747a9157
tree69dd751c19fc2d340305178d82d1a4a2d0d4d5aa
parent414e6b9a7032a6c2f5ddf018fdb199190b075170
md/raid10: fix refounct imbalance when resyncing an array with a replacement device.

If you have a raid10 with a replacement device that is resyncing -
e.g. after a crash before the replacement was complete - the write to
the replacement will increment nr_pending on the wrong device, which
will lead to strangeness.

Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Shaohua Li <shli@fb.com>
drivers/md/raid10.c