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From: NeilBrown <neilb@suse.de>
To: Andrew Morton <akpm@osdl.org>
Cc: nfs@lists.sourceforge.net, linux-kernel@vger.kernel.org
Subject: [PATCH 016 of 18] knfsd: nfsd4: simplify filehandle check
Date: Fri, 8 Dec 2006 12:14:46 +1100	[thread overview]
Message-ID: <1061208011446.30749@suse.de> (raw)
In-Reply-To: 20061208120939.30428.patches@notabene


From: J.Bruce Fields <bfields@fieldses.org>

Kill another big "if" clause.

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Neil Brown <neilb@suse.de>

### Diffstat output
 ./fs/nfsd/nfs4proc.c |   29 ++++++++++++-----------------
 1 file changed, 12 insertions(+), 17 deletions(-)

diff .prev/fs/nfsd/nfs4proc.c ./fs/nfsd/nfs4proc.c
--- .prev/fs/nfsd/nfs4proc.c	2006-12-08 12:09:30.000000000 +1100
+++ ./fs/nfsd/nfs4proc.c	2006-12-08 12:09:30.000000000 +1100
@@ -802,8 +802,10 @@ typedef __be32(*nfsd4op_func)(struct svc
 struct nfsd4_operation {
 	nfsd4op_func op_func;
 	u32 op_flags;
+/* Most ops require a valid current filehandle; a few don't: */
+#define ALLOWED_WITHOUT_FH 1
 /* GETATTR and ops not listed as returning NFS4ERR_MOVED: */
-#define ALLOWED_ON_ABSENT_FS 1
+#define ALLOWED_ON_ABSENT_FS 2
 };
 
 static struct nfsd4_operation nfsd4_ops[];
@@ -874,18 +876,8 @@ nfsd4_proc_compound(struct svc_rqst *rqs
 
 		opdesc = &nfsd4_ops[op->opnum];
 
-		/* All operations except RENEW, SETCLIENTID, RESTOREFH
-		* SETCLIENTID_CONFIRM, PUTFH and PUTROOTFH
-		* require a valid current filehandle
-		*/
 		if (!cstate->current_fh.fh_dentry) {
-			if (!((op->opnum == OP_PUTFH) ||
-			      (op->opnum == OP_PUTROOTFH) ||
-			      (op->opnum == OP_SETCLIENTID) ||
-			      (op->opnum == OP_SETCLIENTID_CONFIRM) ||
-			      (op->opnum == OP_RENEW) ||
-			      (op->opnum == OP_RESTOREFH) ||
-			      (op->opnum == OP_RELEASE_LOCKOWNER))) {
+			if (!(opdesc->op_flags & ALLOWED_WITHOUT_FH)) {
 				op->status = nfserr_nofilehandle;
 				goto encode_op;
 			}
@@ -981,14 +973,15 @@ static struct nfsd4_operation nfsd4_ops[
 	},
 	[OP_PUTFH] = {
 		.op_func = (nfsd4op_func)nfsd4_putfh,
+		.op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS,
 	},
 	[OP_PUTPUBFH] = {
 		/* unsupported; just for future reference: */
-		.op_flags = ALLOWED_ON_ABSENT_FS,
+		.op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS,
 	},
 	[OP_PUTROOTFH] = {
 		.op_func = (nfsd4op_func)nfsd4_putrootfh,
-		.op_flags = ALLOWED_ON_ABSENT_FS,
+		.op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS,
 	},
 	[OP_READ] = {
 		.op_func = (nfsd4op_func)nfsd4_read,
@@ -1007,10 +1000,11 @@ static struct nfsd4_operation nfsd4_ops[
 	},
 	[OP_RENEW] = {
 		.op_func = (nfsd4op_func)nfsd4_renew,
-		.op_flags = ALLOWED_ON_ABSENT_FS,
+		.op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS,
 	},
 	[OP_RESTOREFH] = {
 		.op_func = (nfsd4op_func)nfsd4_restorefh,
+		.op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS,
 	},
 	[OP_SAVEFH] = {
 		.op_func = (nfsd4op_func)nfsd4_savefh,
@@ -1020,10 +1014,11 @@ static struct nfsd4_operation nfsd4_ops[
 	},
 	[OP_SETCLIENTID] = {
 		.op_func = (nfsd4op_func)nfsd4_setclientid,
-		.op_flags = ALLOWED_ON_ABSENT_FS,
+		.op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS,
 	},
 	[OP_SETCLIENTID_CONFIRM] = {
 		.op_func = (nfsd4op_func)nfsd4_setclientid_confirm,
+		.op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS,
 	},
 	[OP_VERIFY] = {
 		.op_func = (nfsd4op_func)nfsd4_verify,
@@ -1033,7 +1028,7 @@ static struct nfsd4_operation nfsd4_ops[
 	},
 	[OP_RELEASE_LOCKOWNER] = {
 		.op_func = (nfsd4op_func)nfsd4_release_lockowner,
-		.op_flags = ALLOWED_ON_ABSENT_FS,
+		.op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS,
 	},
 };
 

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WARNING: multiple messages have this Message-ID (diff)
From: NeilBrown <neilb@suse.de>
To: Andrew Morton <akpm@osdl.org>
Cc: nfs@lists.sourceforge.net, linux-kernel@vger.kernel.org
Subject: [PATCH 016 of 18] knfsd: nfsd4: simplify filehandle check
Date: Fri, 8 Dec 2006 12:14:46 +1100	[thread overview]
Message-ID: <1061208011446.30749@suse.de> (raw)
In-Reply-To: 20061208120939.30428.patches@notabene


From: J.Bruce Fields <bfields@fieldses.org>

Kill another big "if" clause.

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Neil Brown <neilb@suse.de>

### Diffstat output
 ./fs/nfsd/nfs4proc.c |   29 ++++++++++++-----------------
 1 file changed, 12 insertions(+), 17 deletions(-)

diff .prev/fs/nfsd/nfs4proc.c ./fs/nfsd/nfs4proc.c
--- .prev/fs/nfsd/nfs4proc.c	2006-12-08 12:09:30.000000000 +1100
+++ ./fs/nfsd/nfs4proc.c	2006-12-08 12:09:30.000000000 +1100
@@ -802,8 +802,10 @@ typedef __be32(*nfsd4op_func)(struct svc
 struct nfsd4_operation {
 	nfsd4op_func op_func;
 	u32 op_flags;
+/* Most ops require a valid current filehandle; a few don't: */
+#define ALLOWED_WITHOUT_FH 1
 /* GETATTR and ops not listed as returning NFS4ERR_MOVED: */
-#define ALLOWED_ON_ABSENT_FS 1
+#define ALLOWED_ON_ABSENT_FS 2
 };
 
 static struct nfsd4_operation nfsd4_ops[];
@@ -874,18 +876,8 @@ nfsd4_proc_compound(struct svc_rqst *rqs
 
 		opdesc = &nfsd4_ops[op->opnum];
 
-		/* All operations except RENEW, SETCLIENTID, RESTOREFH
-		* SETCLIENTID_CONFIRM, PUTFH and PUTROOTFH
-		* require a valid current filehandle
-		*/
 		if (!cstate->current_fh.fh_dentry) {
-			if (!((op->opnum == OP_PUTFH) ||
-			      (op->opnum == OP_PUTROOTFH) ||
-			      (op->opnum == OP_SETCLIENTID) ||
-			      (op->opnum == OP_SETCLIENTID_CONFIRM) ||
-			      (op->opnum == OP_RENEW) ||
-			      (op->opnum == OP_RESTOREFH) ||
-			      (op->opnum == OP_RELEASE_LOCKOWNER))) {
+			if (!(opdesc->op_flags & ALLOWED_WITHOUT_FH)) {
 				op->status = nfserr_nofilehandle;
 				goto encode_op;
 			}
@@ -981,14 +973,15 @@ static struct nfsd4_operation nfsd4_ops[
 	},
 	[OP_PUTFH] = {
 		.op_func = (nfsd4op_func)nfsd4_putfh,
+		.op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS,
 	},
 	[OP_PUTPUBFH] = {
 		/* unsupported; just for future reference: */
-		.op_flags = ALLOWED_ON_ABSENT_FS,
+		.op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS,
 	},
 	[OP_PUTROOTFH] = {
 		.op_func = (nfsd4op_func)nfsd4_putrootfh,
-		.op_flags = ALLOWED_ON_ABSENT_FS,
+		.op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS,
 	},
 	[OP_READ] = {
 		.op_func = (nfsd4op_func)nfsd4_read,
@@ -1007,10 +1000,11 @@ static struct nfsd4_operation nfsd4_ops[
 	},
 	[OP_RENEW] = {
 		.op_func = (nfsd4op_func)nfsd4_renew,
-		.op_flags = ALLOWED_ON_ABSENT_FS,
+		.op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS,
 	},
 	[OP_RESTOREFH] = {
 		.op_func = (nfsd4op_func)nfsd4_restorefh,
+		.op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS,
 	},
 	[OP_SAVEFH] = {
 		.op_func = (nfsd4op_func)nfsd4_savefh,
@@ -1020,10 +1014,11 @@ static struct nfsd4_operation nfsd4_ops[
 	},
 	[OP_SETCLIENTID] = {
 		.op_func = (nfsd4op_func)nfsd4_setclientid,
-		.op_flags = ALLOWED_ON_ABSENT_FS,
+		.op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS,
 	},
 	[OP_SETCLIENTID_CONFIRM] = {
 		.op_func = (nfsd4op_func)nfsd4_setclientid_confirm,
+		.op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS,
 	},
 	[OP_VERIFY] = {
 		.op_func = (nfsd4op_func)nfsd4_verify,
@@ -1033,7 +1028,7 @@ static struct nfsd4_operation nfsd4_ops[
 	},
 	[OP_RELEASE_LOCKOWNER] = {
 		.op_func = (nfsd4op_func)nfsd4_release_lockowner,
-		.op_flags = ALLOWED_ON_ABSENT_FS,
+		.op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS,
 	},
 };
 

  parent reply	other threads:[~2006-12-08  1:14 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-12-08  1:13 [PATCH 000 of 18] knfsd: Introduction - NFSv4 updates and more NeilBrown
2006-12-08  1:13 ` NeilBrown
2006-12-08  1:13 ` [PATCH 001 of 18] knfsd: nfsd4: remove a dprink from nfsd4_lock NeilBrown
2006-12-08  1:13   ` NeilBrown
2006-12-08  1:13 ` [PATCH 002 of 18] knfsd: svcrpc: fix gss krb5i memory leak NeilBrown
2006-12-08  1:13   ` NeilBrown
2006-12-08  1:13 ` [PATCH 003 of 18] knfsd: nfsd4: clarify units of COMPOUND_SLACK_SPACE NeilBrown
2006-12-08  1:13   ` NeilBrown
2006-12-08  1:13 ` [PATCH 004 of 18] knfsd: nfsd: make exp_rootfh handle exp_parent errors NeilBrown
2006-12-08  1:13   ` NeilBrown
2006-12-08  1:13 ` [PATCH 005 of 18] knfsd: nfsd: simplify exp_pseudoroot NeilBrown
2006-12-08  1:13   ` NeilBrown
2006-12-08  1:13 ` [PATCH 006 of 18] knfsd: nfsd4: handling more nfsd_cross_mnt errors in nfsd4 readdir NeilBrown
2006-12-08  1:13   ` NeilBrown
2006-12-08  1:13 ` [PATCH 007 of 18] knfsd: nfsd: don't drop silently on upcall deferral NeilBrown
2006-12-08  1:13   ` NeilBrown
2006-12-08  1:14 ` [PATCH 008 of 18] knfsd: svcrpc: remove another silent drop from deferral code NeilBrown
2006-12-08  1:14   ` NeilBrown
2006-12-08  1:14 ` [PATCH 009 of 18] knfsd: nfsd4: pass saved and current fh together into nfsd4 operations NeilBrown
2006-12-08  1:14   ` NeilBrown
2006-12-08  1:14 ` [PATCH 010 of 18] knfsd: nfsd4: remove spurious replay_owner check NeilBrown
2006-12-08  1:14   ` NeilBrown
2006-12-08  1:14 ` [PATCH 011 of 18] knfsd: nfsd4: move replay_owner to cstate NeilBrown
2006-12-08  1:14   ` NeilBrown
2006-12-08  1:14 ` [PATCH 012 of 18] knfsd: nfsd4: don't inline nfsd4 compound op functions NeilBrown
2006-12-08  1:14   ` NeilBrown
2006-12-08  1:14 ` [PATCH 013 of 18] knfsd: nfsd4: make verify and nverify wrappers NeilBrown
2006-12-08  1:14   ` NeilBrown
2006-12-08  1:14 ` [PATCH 014 of 18] knfsd: nfsd4: reorganize compound ops NeilBrown
2006-12-08  1:14   ` NeilBrown
2006-12-08  1:14 ` [PATCH 015 of 18] knfsd: nfsd4: simplify migration op check NeilBrown
2006-12-08  1:14   ` NeilBrown
2006-12-08  1:14 ` NeilBrown [this message]
2006-12-08  1:14   ` [PATCH 016 of 18] knfsd: nfsd4: simplify filehandle check NeilBrown
2006-12-08  1:14 ` [PATCH 017 of 18] knfsd: Don't ignore kstrdup failure in rpc caches NeilBrown
2006-12-08  1:14   ` NeilBrown
2006-12-08  1:14 ` [PATCH 018 of 18] knfsd: Fix up some bit-rot in exp_export NeilBrown
2006-12-08  1:14   ` NeilBrown

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