* [PATCH 1/2] NFSD: Optimize code for nfsd4_proc_compound
@ 2014-03-26 9:10 Kinglong Mee
2014-03-28 21:22 ` J. Bruce Fields
0 siblings, 1 reply; 2+ messages in thread
From: Kinglong Mee @ 2014-03-26 9:10 UTC (permalink / raw)
To: bfields; +Cc: linux-nfs
Signed-off-by: Kinglong Mee <kinglongmee@gmail.com>
---
fs/nfsd/nfs4proc.c | 28 +++++++++++++++-------------
1 file changed, 15 insertions(+), 13 deletions(-)
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index 82189b2..550faf2 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -1273,6 +1273,8 @@ nfsd4_proc_compound(struct svc_rqst *rqstp,
struct nfsd4_op *op;
struct nfsd4_operation *opdesc;
struct nfsd4_compound_state *cstate = &resp->cstate;
+ struct svc_fh *current_fh = &cstate->current_fh;
+ struct svc_fh *save_fh = &cstate->save_fh;
int slack_bytes;
u32 plen = 0;
__be32 status;
@@ -1288,11 +1290,11 @@ nfsd4_proc_compound(struct svc_rqst *rqstp,
resp->tag = args->tag;
resp->opcnt = 0;
resp->rqstp = rqstp;
- resp->cstate.minorversion = args->minorversion;
- resp->cstate.replay_owner = NULL;
- resp->cstate.session = NULL;
- fh_init(&resp->cstate.current_fh, NFS4_FHSIZE);
- fh_init(&resp->cstate.save_fh, NFS4_FHSIZE);
+ cstate->minorversion = args->minorversion;
+ cstate->replay_owner = NULL;
+ cstate->session = NULL;
+ fh_init(current_fh, NFS4_FHSIZE);
+ fh_init(save_fh, NFS4_FHSIZE);
/*
* Don't use the deferral mechanism for NFSv4; compounds make it
* too hard to avoid non-idempotency problems.
@@ -1345,12 +1347,12 @@ nfsd4_proc_compound(struct svc_rqst *rqstp,
opdesc = OPDESC(op);
- if (!cstate->current_fh.fh_dentry) {
+ if (!current_fh->fh_dentry) {
if (!(opdesc->op_flags & ALLOWED_WITHOUT_FH)) {
op->status = nfserr_nofilehandle;
goto encode_op;
}
- } else if (cstate->current_fh.fh_export->ex_fslocs.migrated &&
+ } else if (current_fh->fh_export->ex_fslocs.migrated &&
!(opdesc->op_flags & ALLOWED_ON_ABSENT_FS)) {
op->status = nfserr_moved;
goto encode_op;
@@ -1377,12 +1379,12 @@ nfsd4_proc_compound(struct svc_rqst *rqstp,
clear_current_stateid(cstate);
if (need_wrongsec_check(rqstp))
- op->status = check_nfsd_access(cstate->current_fh.fh_export, rqstp);
+ op->status = check_nfsd_access(current_fh->fh_export, rqstp);
}
encode_op:
/* Only from SEQUENCE */
- if (resp->cstate.status == nfserr_replay_cache) {
+ if (cstate->status == nfserr_replay_cache) {
dprintk("%s NFS4.1 replay from cache\n", __func__);
status = op->status;
goto out;
@@ -1411,10 +1413,10 @@ encode_op:
nfsd4_increment_op_stats(op->opnum);
}
- resp->cstate.status = status;
- fh_put(&resp->cstate.current_fh);
- fh_put(&resp->cstate.save_fh);
- BUG_ON(resp->cstate.replay_owner);
+ cstate->status = status;
+ fh_put(current_fh);
+ fh_put(save_fh);
+ BUG_ON(cstate->replay_owner);
out:
/* Reset deferral mechanism for RPC deferrals */
rqstp->rq_usedeferral = 1;
--
1.8.5.3
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH 1/2] NFSD: Optimize code for nfsd4_proc_compound
2014-03-26 9:10 [PATCH 1/2] NFSD: Optimize code for nfsd4_proc_compound Kinglong Mee
@ 2014-03-28 21:22 ` J. Bruce Fields
0 siblings, 0 replies; 2+ messages in thread
From: J. Bruce Fields @ 2014-03-28 21:22 UTC (permalink / raw)
To: Kinglong Mee; +Cc: linux-nfs
On Wed, Mar 26, 2014 at 05:10:37PM +0800, Kinglong Mee wrote:
> Signed-off-by: Kinglong Mee <kinglongmee@gmail.com>
Looks like reasonable cleanup, thanks.
--b.
> ---
> fs/nfsd/nfs4proc.c | 28 +++++++++++++++-------------
> 1 file changed, 15 insertions(+), 13 deletions(-)
>
> diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
> index 82189b2..550faf2 100644
> --- a/fs/nfsd/nfs4proc.c
> +++ b/fs/nfsd/nfs4proc.c
> @@ -1273,6 +1273,8 @@ nfsd4_proc_compound(struct svc_rqst *rqstp,
> struct nfsd4_op *op;
> struct nfsd4_operation *opdesc;
> struct nfsd4_compound_state *cstate = &resp->cstate;
> + struct svc_fh *current_fh = &cstate->current_fh;
> + struct svc_fh *save_fh = &cstate->save_fh;
> int slack_bytes;
> u32 plen = 0;
> __be32 status;
> @@ -1288,11 +1290,11 @@ nfsd4_proc_compound(struct svc_rqst *rqstp,
> resp->tag = args->tag;
> resp->opcnt = 0;
> resp->rqstp = rqstp;
> - resp->cstate.minorversion = args->minorversion;
> - resp->cstate.replay_owner = NULL;
> - resp->cstate.session = NULL;
> - fh_init(&resp->cstate.current_fh, NFS4_FHSIZE);
> - fh_init(&resp->cstate.save_fh, NFS4_FHSIZE);
> + cstate->minorversion = args->minorversion;
> + cstate->replay_owner = NULL;
> + cstate->session = NULL;
> + fh_init(current_fh, NFS4_FHSIZE);
> + fh_init(save_fh, NFS4_FHSIZE);
> /*
> * Don't use the deferral mechanism for NFSv4; compounds make it
> * too hard to avoid non-idempotency problems.
> @@ -1345,12 +1347,12 @@ nfsd4_proc_compound(struct svc_rqst *rqstp,
>
> opdesc = OPDESC(op);
>
> - if (!cstate->current_fh.fh_dentry) {
> + if (!current_fh->fh_dentry) {
> if (!(opdesc->op_flags & ALLOWED_WITHOUT_FH)) {
> op->status = nfserr_nofilehandle;
> goto encode_op;
> }
> - } else if (cstate->current_fh.fh_export->ex_fslocs.migrated &&
> + } else if (current_fh->fh_export->ex_fslocs.migrated &&
> !(opdesc->op_flags & ALLOWED_ON_ABSENT_FS)) {
> op->status = nfserr_moved;
> goto encode_op;
> @@ -1377,12 +1379,12 @@ nfsd4_proc_compound(struct svc_rqst *rqstp,
> clear_current_stateid(cstate);
>
> if (need_wrongsec_check(rqstp))
> - op->status = check_nfsd_access(cstate->current_fh.fh_export, rqstp);
> + op->status = check_nfsd_access(current_fh->fh_export, rqstp);
> }
>
> encode_op:
> /* Only from SEQUENCE */
> - if (resp->cstate.status == nfserr_replay_cache) {
> + if (cstate->status == nfserr_replay_cache) {
> dprintk("%s NFS4.1 replay from cache\n", __func__);
> status = op->status;
> goto out;
> @@ -1411,10 +1413,10 @@ encode_op:
> nfsd4_increment_op_stats(op->opnum);
> }
>
> - resp->cstate.status = status;
> - fh_put(&resp->cstate.current_fh);
> - fh_put(&resp->cstate.save_fh);
> - BUG_ON(resp->cstate.replay_owner);
> + cstate->status = status;
> + fh_put(current_fh);
> + fh_put(save_fh);
> + BUG_ON(cstate->replay_owner);
> out:
> /* Reset deferral mechanism for RPC deferrals */
> rqstp->rq_usedeferral = 1;
> --
> 1.8.5.3
>
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