tree 70f9d9eeecb0cb9eb4fa69b2d161a2ab72c7e5e4
parent 9c4bdf697c39805078392d5ddbbba5ae5680e0dd
author NeilBrown <neilb@suse.de> 1408334198 +1000
committer NeilBrown <neilb@suse.de> 1408432827 +1000

md/raid10: fix memory leak when reshaping a RAID10.

raid10 reshape clears unwanted bits from a bio->bi_flags using
a method which, while clumsy, worked until 3.10 when BIO_OWNS_VEC
was added.
Since then it clears that bit but shouldn't.  This results in a
memory leak.

So change to used the approved method of clearing unwanted bits.

As this causes a memory leak which can consume all of memory
the fix is suitable for -stable.

Fixes: a38352e0ac02dbbd4fa464dc22d1352b5fbd06fd
Cc: stable@vger.kernel.org (v3.10+)
Reported-by: mdraid.pkoch@dfgh.net (Peter Koch)
Signed-off-by: NeilBrown <neilb@suse.de>