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[PATCH] knfsd: nfsd4: simplify migration op check

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I'm not too fond of these big if conditions.  Replace them by checks of a flag
in the operation descriptor.  To my eye this makes the code a bit more
self-documenting, and makes the complicated part of the code (proc_compound) a
little more compact.

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
J.Bruce Fields 2006-12-13 00:35:39 -08:00 committed by Linus Torvalds
parent b591480bbe
commit eeac294ebd
1 changed files with 13 additions and 11 deletions
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24
fs/nfsd/nfs4proc.c
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@ -802,6 +802,8 @@ typedef __be32(*nfsd4op_func)(struct svc_rqst *, struct nfsd4_compound_state *,
struct nfsd4_operation {
nfsd4op_func op_func;
u32 op_flags;
/* GETATTR and ops not listed as returning NFS4ERR_MOVED: */
#define ALLOWED_ON_ABSENT_FS 1
};
static struct nfsd4_operation nfsd4_ops[];
@ -887,17 +889,8 @@ nfsd4_proc_compound(struct svc_rqst *rqstp,
op->status = nfserr_nofilehandle;
goto encode_op;
}
}
/* Check must be done at start of each operation, except
* for GETATTR and ops not listed as returning NFS4ERR_MOVED
*/
else if (cstate->current_fh.fh_export->ex_fslocs.migrated &&
!((op->opnum == OP_GETATTR) ||
(op->opnum == OP_PUTROOTFH) ||
(op->opnum == OP_PUTPUBFH) ||
(op->opnum == OP_RENEW) ||
(op->opnum == OP_SETCLIENTID) ||
(op->opnum == OP_RELEASE_LOCKOWNER))) {
} else if (cstate->current_fh.fh_export->ex_fslocs.migrated &&
!(opdesc->op_flags & ALLOWED_ON_ABSENT_FS)) {
op->status = nfserr_moved;
goto encode_op;
}
@ -951,6 +944,7 @@ static struct nfsd4_operation nfsd4_ops[OP_RELEASE_LOCKOWNER+1] = {
},
[OP_GETATTR] = {
.op_func = (nfsd4op_func)nfsd4_getattr,
.op_flags = ALLOWED_ON_ABSENT_FS,
},
[OP_GETFH] = {
.op_func = (nfsd4op_func)nfsd4_getfh,
@ -988,8 +982,13 @@ static struct nfsd4_operation nfsd4_ops[OP_RELEASE_LOCKOWNER+1] = {
[OP_PUTFH] = {
.op_func = (nfsd4op_func)nfsd4_putfh,
},
[OP_PUTPUBFH] = {
/* unsupported; just for future reference: */
.op_flags = ALLOWED_ON_ABSENT_FS,
},
[OP_PUTROOTFH] = {
.op_func = (nfsd4op_func)nfsd4_putrootfh,
.op_flags = ALLOWED_ON_ABSENT_FS,
},
[OP_READ] = {
.op_func = (nfsd4op_func)nfsd4_read,
@ -1008,6 +1007,7 @@ static struct nfsd4_operation nfsd4_ops[OP_RELEASE_LOCKOWNER+1] = {
},
[OP_RENEW] = {
.op_func = (nfsd4op_func)nfsd4_renew,
.op_flags = ALLOWED_ON_ABSENT_FS,
},
[OP_RESTOREFH] = {
.op_func = (nfsd4op_func)nfsd4_restorefh,
@ -1020,6 +1020,7 @@ static struct nfsd4_operation nfsd4_ops[OP_RELEASE_LOCKOWNER+1] = {
},
[OP_SETCLIENTID] = {
.op_func = (nfsd4op_func)nfsd4_setclientid,
.op_flags = ALLOWED_ON_ABSENT_FS,
},
[OP_SETCLIENTID_CONFIRM] = {
.op_func = (nfsd4op_func)nfsd4_setclientid_confirm,
@ -1032,6 +1033,7 @@ static struct nfsd4_operation nfsd4_ops[OP_RELEASE_LOCKOWNER+1] = {
},
[OP_RELEASE_LOCKOWNER] = {
.op_func = (nfsd4op_func)nfsd4_release_lockowner,
.op_flags = ALLOWED_ON_ABSENT_FS,
},
};