lkml.org 
[lkml]   [2019]   [Dec]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH 4.19 078/321] RDMA/vmw_pvrdma: Use atomic memory allocation in create AH
    Date
    From: Gal Pressman <galpress@amazon.com>

    [ Upstream commit a276a4d93bf1580d737f38d1810e5f4b166f3edd ]

    Create address handle callback should not sleep, use GFP_ATOMIC instead of
    GFP_KERNEL for memory allocation.

    Fixes: 29c8d9eba550 ("IB: Add vmw_pvrdma driver")
    Cc: Adit Ranadive <aditr@vmware.com>
    Signed-off-by: Gal Pressman <galpress@amazon.com>
    Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com>
    Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    drivers/infiniband/hw/vmw_pvrdma/pvrdma_verbs.c | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    diff --git a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_verbs.c b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_verbs.c
    index b65d10b0a8759..f4cb5cf26006f 100644
    --- a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_verbs.c
    +++ b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_verbs.c
    @@ -555,7 +555,7 @@ struct ib_ah *pvrdma_create_ah(struct ib_pd *pd, struct rdma_ah_attr *ah_attr,
    if (!atomic_add_unless(&dev->num_ahs, 1, dev->dsr->caps.max_ah))
    return ERR_PTR(-ENOMEM);

    - ah = kzalloc(sizeof(*ah), GFP_KERNEL);
    + ah = kzalloc(sizeof(*ah), GFP_ATOMIC);
    if (!ah) {
    atomic_dec(&dev->num_ahs);
    return ERR_PTR(-ENOMEM);
    --
    2.20.1


    \
     
     \ /
      Last update: 2019-12-04 00:07    [W:2.262 / U:0.044 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site