3.17-stable review patch. If anyone has any objections, please let me know.
------------------ From: Ilya Dryomov <[email protected]> commit 792c3a914910bd34302c5345578f85cfcb5e2c01 upstream. Need to use WQ_MEM_RECLAIM for our workqueues to prevent I/O lockups under memory pressure - we sit on the memory reclaim path. Signed-off-by: Ilya Dryomov <[email protected]> Tested-by: Micha Krause <[email protected]> Reviewed-by: Sage Weil <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/block/rbd.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -5087,7 +5087,8 @@ static int rbd_dev_device_setup(struct r set_capacity(rbd_dev->disk, rbd_dev->mapping.size / SECTOR_SIZE); set_disk_ro(rbd_dev->disk, rbd_dev->mapping.read_only); - rbd_dev->rq_wq = alloc_workqueue("%s", 0, 0, rbd_dev->disk->disk_name); + rbd_dev->rq_wq = alloc_workqueue("%s", WQ_MEM_RECLAIM, 0, + rbd_dev->disk->disk_name); if (!rbd_dev->rq_wq) { ret = -ENOMEM; goto err_out_mapping; -- 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/
