From eeac294ebd9254a937d90b00c48863e3af229047 Mon Sep 17 00:00:00 2001 From: "J.Bruce Fields" Date: Wed, 13 Dec 2006 00:35:39 -0800 Subject: [PATCH] [PATCH] knfsd: nfsd4: simplify migration op check 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 Signed-off-by: Neil Brown Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/nfsd/nfs4proc.c | 24 +++++++++++++----------- 1 file changed, 13 insertions(+), 11 deletions(-) diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c index e1c463bad124..3a652e741374 100644 --- a/fs/nfsd/nfs4proc.c +++ b/fs/nfsd/nfs4proc.c @@ -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, }, }; -- 2.20.1