SUNRPC: move bkl locking and xdr proc invocation into a common helper
Since every invocation of xdr encode or decode functions takes the BKL now,
there's a lot of redundant lock_kernel/unlock_kernel pairs that we can pull
out into a common function.
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/net/sunrpc/auth_gss/auth_gss.c b/net/sunrpc/auth_gss/auth_gss.c
index abfda33..4bbc59c 100644
--- a/net/sunrpc/auth_gss/auth_gss.c
+++ b/net/sunrpc/auth_gss/auth_gss.c
@@ -43,7 +43,6 @@
#include <linux/types.h>
#include <linux/slab.h>
#include <linux/sched.h>
-#include <linux/smp_lock.h>
#include <linux/pagemap.h>
#include <linux/sunrpc/clnt.h>
#include <linux/sunrpc/auth.h>
@@ -1000,9 +999,7 @@
offset = (u8 *)p - (u8 *)snd_buf->head[0].iov_base;
*p++ = htonl(rqstp->rq_seqno);
- lock_kernel();
- status = encode(rqstp, p, obj);
- unlock_kernel();
+ status = rpc_call_xdrproc(encode, rqstp, p, obj);
if (status)
return status;
@@ -1096,9 +1093,7 @@
offset = (u8 *)p - (u8 *)snd_buf->head[0].iov_base;
*p++ = htonl(rqstp->rq_seqno);
- lock_kernel();
- status = encode(rqstp, p, obj);
- unlock_kernel();
+ status = rpc_call_xdrproc(encode, rqstp, p, obj);
if (status)
return status;
@@ -1157,16 +1152,12 @@
/* The spec seems a little ambiguous here, but I think that not
* wrapping context destruction requests makes the most sense.
*/
- lock_kernel();
- status = encode(rqstp, p, obj);
- unlock_kernel();
+ status = rpc_call_xdrproc(encode, rqstp, p, obj);
goto out;
}
switch (gss_cred->gc_service) {
case RPC_GSS_SVC_NONE:
- lock_kernel();
- status = encode(rqstp, p, obj);
- unlock_kernel();
+ status = rpc_call_xdrproc(encode, rqstp, p, obj);
break;
case RPC_GSS_SVC_INTEGRITY:
status = gss_wrap_req_integ(cred, ctx, encode,
@@ -1282,9 +1273,7 @@
cred->cr_auth->au_rslack = cred->cr_auth->au_verfsize + (p - savedp)
+ (savedlen - head->iov_len);
out_decode:
- lock_kernel();
- status = decode(rqstp, p, obj);
- unlock_kernel();
+ status = rpc_call_xdrproc(decode, rqstp, p, obj);
out:
gss_put_ctx(ctx);
dprintk("RPC: %5u gss_unwrap_resp returning %d\n", task->tk_pid,