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SUNRPC: move bkl locking and xdr proc invocation into a common helper

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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>
This commit is contained in:
J. Bruce Fields
2007-07-11 18:39:02 -04:00
committed by Trond Myklebust
parent e3a535e173
commit be879c4e24
3 changed files with 23 additions and 27 deletions
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21
net/sunrpc/auth_gss/auth_gss.c
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@ -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 @@ gss_wrap_req_integ(struct rpc_cred *cred, struct gss_cl_ctx *ctx,
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 @@ gss_wrap_req_priv(struct rpc_cred *cred, struct gss_cl_ctx *ctx,
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 @@ gss_wrap_req(struct rpc_task *task,
/* 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 @@ gss_unwrap_resp(struct rpc_task *task,
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,