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sunrpc: drop BKL around wrap and unwrap

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We don't need the BKL when wrapping and unwrapping; and experiments by Avishay
Traeger have found that permitting multiple encryption and decryption
operations to proceed in parallel can provide significant performance
improvements.

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Cc: Avishay Traeger <atraeger@cs.sunysb.edu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
J. Bruce Fields
2007-07-10 15:19:26 -04:00
committed by Trond Myklebust
parent 137d6acaa6
commit d8558f99fb
3 changed files with 21 additions and 6 deletions
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13
net/sunrpc/auth.c
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@@ -13,6 +13,7 @@
#include <linux/errno.h>
#include <linux/sunrpc/clnt.h>
#include <linux/spinlock.h>
#include <linux/smp_lock.h>
#ifdef RPC_DEBUG
# define RPCDBG_FACILITY RPCDBG_AUTH
@@ -475,13 +476,17 @@ rpcauth_wrap_req(struct rpc_task *task, kxdrproc_t encode, void *rqstp,
__be32 *data, void *obj)
{
struct rpc_cred *cred = task->tk_msg.rpc_cred;
int ret;
dprintk("RPC: %5u using %s cred %p to wrap rpc data\n",
task->tk_pid, cred->cr_ops->cr_name, cred);
if (cred->cr_ops->crwrap_req)
return cred->cr_ops->crwrap_req(task, encode, rqstp, data, obj);
/* By default, we encode the arguments normally. */
return encode(rqstp, data, obj);
lock_kernel();
ret = encode(rqstp, data, obj);
unlock_kernel();
return ret;
}
int
@@ -489,6 +494,7 @@ rpcauth_unwrap_resp(struct rpc_task *task, kxdrproc_t decode, void *rqstp,
__be32 *data, void *obj)
{
struct rpc_cred *cred = task->tk_msg.rpc_cred;
int ret;
dprintk("RPC: %5u using %s cred %p to unwrap rpc data\n",
task->tk_pid, cred->cr_ops->cr_name, cred);
@@ -496,7 +502,10 @@ rpcauth_unwrap_resp(struct rpc_task *task, kxdrproc_t decode, void *rqstp,
return cred->cr_ops->crunwrap_resp(task, decode, rqstp,
data, obj);
/* By default, we decode the arguments normally. */
return decode(rqstp, data, obj);
lock_kernel();
ret = decode(rqstp, data, obj);
unlock_kernel();
return ret;
}
int