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/rds.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/rds.h')
| -rw-r--r-- | net/rds/rds.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/rds/rds.h b/net/rds/rds.h index 9005fb0586f6..afb4048d0cfd 100644 --- a/net/rds/rds.h +++ b/net/rds/rds.h @@ -80,6 +80,7 @@ enum { #define RDS_LL_SEND_FULL 0 #define RDS_RECONNECT_PENDING 1 #define RDS_IN_XMIT 2 +#define RDS_RECV_REFILL 3 struct rds_connection { struct hlist_node c_hash_node; |