diff options
| author | santosh.shilimkar@oracle.com <santosh.shilimkar@oracle.com> | 2015-08-23 01:45:26 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-08-25 23:35:30 +0300 |
| commit | 73ce4317bf983282593aff710b112a7e705620c3 (patch) | |
| tree | 97b8dd71092f81370c025f90efa82291efb36154 /net/rds/ib.h | |
| parent | e1f475a738e4c861d8aff84b737a0538680cbe05 (diff) | |
| download | linux-73ce4317bf983282593aff710b112a7e705620c3.tar.xz | |
RDS: make sure we post recv buffers
If we get an ENOMEM during rds_ib_recv_refill, we might never come
back and refill again later. Patch makes sure to kick krdsd into
helping out.
To achieve this we add RDS_RECV_REFILL flag and update in the refill
path based on that so that at least some therad will keep posting
receive buffers.
Since krdsd and softirq both might race for refill, we decide to
schedule on work queue based on ring_low instead of ring_empty.
Reviewed-by: Ajaykumar Hotchandani <ajaykumar.hotchandani@oracle.com>
Signed-off-by: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/rds/ib.h')
| -rw-r--r-- | net/rds/ib.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/rds/ib.h b/net/rds/ib.h index 86d88ec5d556..6422c52682e5 100644 --- a/net/rds/ib.h +++ b/net/rds/ib.h @@ -320,7 +320,7 @@ void rds_ib_recv_exit(void); int rds_ib_recv(struct rds_connection *conn); int rds_ib_recv_alloc_caches(struct rds_ib_connection *ic); void rds_ib_recv_free_caches(struct rds_ib_connection *ic); -void rds_ib_recv_refill(struct rds_connection *conn, int prefill); +void rds_ib_recv_refill(struct rds_connection *conn, int prefill, gfp_t gfp); void rds_ib_inc_free(struct rds_incoming *inc); int rds_ib_inc_copy_to_user(struct rds_incoming *inc, struct iov_iter *to); void rds_ib_recv_cq_comp_handler(struct ib_cq *cq, void *context); |