3.14-stable review patch. If anyone has any objections, please let me know.
------------------ From: NeilBrown <[email protected]> commit f0cc9a057151892b885be21a1d19b0185568281d upstream. r1_bio->start_next_window is not initialised in the READ case, so allow_barrier may incorrectly decrement conf->current_window_requests which can cause raise_barrier() to block forever. Fixes: 79ef3a8aa1cb1523cc231c9a90a278333c21f761 Reported-by: Brassow Jonathan <[email protected]> Signed-off-by: NeilBrown <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/md/raid1.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -1185,6 +1185,7 @@ read_again: atomic_read(&bitmap->behind_writes) == 0); } r1_bio->read_disk = rdisk; + r1_bio->start_next_window = 0; read_bio = bio_clone_mddev(bio, GFP_NOIO, mddev); bio_trim(read_bio, r1_bio->sector - bio->bi_iter.bi_sector, -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
