diff options
| author | Chuck Lever <chuck.lever@oracle.com> | 2017-12-14 20:58:04 -0500 |
|---|---|---|
| committer | Anna Schumaker <Anna.Schumaker@Netapp.com> | 2018-01-16 11:19:52 -0500 |
| commit | ec12e479e30653bf973ca1185bbb09158e9af0b7 (patch) | |
| tree | 56311458295827af007ced5f8bc88efc3ff802d2 /net/sunrpc/xprtrdma/verbs.c | |
| parent | 96ceddea3710f61bb5a5f2af25e684b7e1466171 (diff) | |
xprtrdma: Introduce rpcrdma_mw_unmap_and_put
Clean up: Code review suggested that a common bit of code can be
placed into a helper function, and this gives us fewer places to
stick an "I DMA unmapped something" trace point.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'net/sunrpc/xprtrdma/verbs.c')
| -rw-r--r-- | net/sunrpc/xprtrdma/verbs.c | 26 |
1 files changed, 22 insertions, 4 deletions
diff --git a/net/sunrpc/xprtrdma/verbs.c b/net/sunrpc/xprtrdma/verbs.c index 2582729f8c64..9cc8abc09e14 100644 --- a/net/sunrpc/xprtrdma/verbs.c +++ b/net/sunrpc/xprtrdma/verbs.c @@ -1321,6 +1321,14 @@ out_nomrs: return NULL; } +static void +__rpcrdma_mr_put(struct rpcrdma_buffer *buf, struct rpcrdma_mr *mr) +{ + spin_lock(&buf->rb_mrlock); + rpcrdma_mr_push(mr, &buf->rb_mrs); + spin_unlock(&buf->rb_mrlock); +} + /** * rpcrdma_mr_put - Release an rpcrdma_mr object * @mr: object to release @@ -1329,12 +1337,22 @@ out_nomrs: void rpcrdma_mr_put(struct rpcrdma_mr *mr) { + __rpcrdma_mr_put(&mr->mr_xprt->rx_buf, mr); +} + +/** + * rpcrdma_mr_unmap_and_put - DMA unmap an MR and release it + * @mr: object to release + * + */ +void +rpcrdma_mr_unmap_and_put(struct rpcrdma_mr *mr) +{ struct rpcrdma_xprt *r_xprt = mr->mr_xprt; - struct rpcrdma_buffer *buf = &r_xprt->rx_buf; - spin_lock(&buf->rb_mrlock); - rpcrdma_mr_push(mr, &buf->rb_mrs); - spin_unlock(&buf->rb_mrlock); + ib_dma_unmap_sg(r_xprt->rx_ia.ri_device, + mr->mr_sg, mr->mr_nents, mr->mr_dir); + __rpcrdma_mr_put(&r_xprt->rx_buf, mr); } static struct rpcrdma_rep * |