[PATCH v4 20/21] xprtrdma: Remove RPCRDMA_PERSISTENT_REGISTRATION macro

Chuck Lever
2014-07-22T14:53:52Z

Clean up.

RPCRDMA_PERSISTENT_REGISTRATION was a compile-time switch between
RPCRDMA_REGISTER mode and RPCRDMA_ALLPHYSICAL mode. Since
RPCRDMA_REGISTER has been removed, there's no need for the extra
conditional compilation.

Signed-off-by: Chuck Lever <chuck.lever-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
Tested-by: Steve Wise <swise-7bPotxP6k4+P2YhJcF5u+vpXobYPEAuW@public.gmane.org>
Tested-by: Shirley Ma <shirley.ma-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
Tested-by: Devesh Sharma <devesh.sharma-laKkSmNT4hbQT0dZR+AlfA@public.gmane.org>
---
include/linux/sunrpc/xprtrdma.h | 2 --
net/sunrpc/xprtrdma/verbs.c | 13 -------------
2 files changed, 15 deletions(-)

diff --git a/include/linux/sunrpc/xprtrdma.h b/include/linux/sunrpc/xprtrdma.h
index c2f04e1..64a0a0a 100644
--- a/include/linux/sunrpc/xprtrdma.h
+++ b/include/linux/sunrpc/xprtrdma.h
@@ -62,8 +62,6 @@
#define RPCRDMA_INLINE_PAD_THRESH (512)/* payload threshold to pad (bytes) */

/* memory registration strategies */
-#define RPCRDMA_PERSISTENT_REGISTRATION (1)
-
enum rpcrdma_memreg {
RPCRDMA_BOUNCEBUFFERS = 0,
RPCRDMA_REGISTER,
diff --git a/net/sunrpc/xprtrdma/verbs.c b/net/sunrpc/xprtrdma/verbs.c
index e62b1fe..721a6fd 100644
--- a/net/sunrpc/xprtrdma/verbs.c
+++ b/net/sunrpc/xprtrdma/verbs.c
@@ -561,12 +561,7 @@ rpcrdma_ia_open(struct rpcrdma_xprt *xprt, struct sockaddr *addr, int memreg)
if (!ia->ri_id->device->alloc_fmr) {
dprintk("RPC: %s: MTHCAFMR registration "
"not supported by HCA\n", __func__);
-#if RPCRDMA_PERSISTENT_REGISTRATION
memreg = RPCRDMA_ALLPHYSICAL;
-#else
- rc = -ENOMEM;
- goto out2;
-#endif
}
}

@@ -581,20 +576,16 @@ rpcrdma_ia_open(struct rpcrdma_xprt *xprt, struct sockaddr *addr, int memreg)
switch (memreg) {
case RPCRDMA_FRMR:
break;
-#if RPCRDMA_PERSISTENT_REGISTRATION
case RPCRDMA_ALLPHYSICAL:
mem_priv = IB_ACCESS_LOCAL_WRITE |
IB_ACCESS_REMOTE_WRITE |
IB_ACCESS_REMOTE_READ;
goto register_setup;
-#endif
case RPCRDMA_MTHCAFMR:
if (ia->ri_have_dma_lkey)
break;
mem_priv = IB_ACCESS_LOCAL_WRITE;
-#if RPCRDMA_PERSISTENT_REGISTRATION
register_setup:
-#endif
ia->ri_bind_mem = ib_get_dma_mr(ia->ri_pd, mem_priv);
if (IS_ERR(ia->ri_bind_mem)) {
printk(KERN_ALERT "%s: ib_get_dma_mr for "
@@ -1900,7 +1891,6 @@ rpcrdma_register_external(struct rpcrdma_mr_seg *seg,

switch (ia->ri_memreg_strategy) {

-#if RPCRDMA_PERSISTENT_REGISTRATION
case RPCRDMA_ALLPHYSICAL:
rpcrdma_map_one(ia, seg, writing);
seg->mr_rkey = ia->ri_bind_mem->rkey;
@@ -1908,7 +1898,6 @@ rpcrdma_register_external(struct rpcrdma_mr_seg *seg,
seg->mr_nsegs = 1;
nsegs = 1;
break;
-#endif

/* Registration using frmr registration */
case RPCRDMA_FRMR:
@@ -1938,13 +1927,11 @@ rpcrdma_deregister_external(struct rpcrdma_mr_seg *seg,

switch (ia->ri_memreg_strategy) {

-#if RPCRDMA_PERSISTENT_REGISTRATION
case RPCRDMA_ALLPHYSICAL:
read_lock(&ia->ri_qplock);
rpcrdma_unmap_one(ia, seg);
read_unlock(&ia->ri_qplock);
break;
-#endif

case RPCRDMA_FRMR:
rc = rpcrdma_deregister_frmr_external(seg, ia, r_xprt);