lkml.org 
[lkml]   [2014]   [Nov]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH 3.17 066/319] rbd: rbd workqueues need a resque worker
    Date
    3.17-stable review patch.  If anyone has any objections, please let me know.

    ------------------

    From: Ilya Dryomov <idryomov@redhat.com>

    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 <idryomov@redhat.com>
    Tested-by: Micha Krause <micha@krausam.de>
    Reviewed-by: Sage Weil <sage@redhat.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

    ---
    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;



    \
     
     \ /
      Last update: 2014-11-12 02:41    [W:2.260 / U:1.696 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site