From: NeilBrown <neilb@xxxxxxx> This patch has been added to the 3.12 stable tree. If you have any objections, please let us know. =============== commit ce0b0a46955d1bb389684a2605dbcaa990ba0154 upstream. 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 Reported-by: mdraid.pkoch@xxxxxxxx (Peter Koch) Signed-off-by: NeilBrown <neilb@xxxxxxx> Signed-off-by: Jiri Slaby <jslaby@xxxxxxx> --- drivers/md/raid10.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index 867a8b67d5b9..d1cf7734e55e 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -4419,7 +4419,7 @@ read_more: read_bio->bi_private = r10_bio; read_bio->bi_end_io = end_sync_read; read_bio->bi_rw = READ; - read_bio->bi_flags &= ~(BIO_POOL_MASK - 1); + read_bio->bi_flags &= (~0UL << BIO_RESET_BITS); read_bio->bi_flags |= 1 << BIO_UPTODATE; read_bio->bi_vcnt = 0; read_bio->bi_size = 0; -- 2.1.0 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html