From: Chuck Lever <chuck.lever@oracle.com>
To: trond.myklebust@netapp.com
Cc: linux-nfs@vger.kernel.org
Subject: [PATCH 04/17] NFS: Use the "nfs_stat" enum for nfs_stat_to_errno()'s argument
Date: Wed, 17 Nov 2010 12:44:11 -0500 [thread overview]
Message-ID: <20101117174411.29177.27455.stgit@matisse.1015granger.net> (raw)
In-Reply-To: <20101117174112.29177.69734.stgit@matisse.1015granger.net>
Clean up.
To distinguish more clearly between the on-the-wire NFSERR_ value and
our local errno values, use the proper type for the argument of
nfs_stat_to_errno().
Add a documenting comment appropriate for a global function shared
outside this source file.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Tested-by: J. Bruce Fields <bfields@redhat.com>
---
fs/nfs/internal.h | 2 +-
fs/nfs/nfs2xdr.c | 18 ++++++++++--------
2 files changed, 11 insertions(+), 9 deletions(-)
diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index 1ccf4fb..cddf49d 100644
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -185,7 +185,7 @@ extern int __init nfs_init_directcache(void);
extern void nfs_destroy_directcache(void);
/* nfs2xdr.c */
-extern int nfs_stat_to_errno(int);
+extern int nfs_stat_to_errno(enum nfs_stat);
extern struct rpc_procinfo nfs_procedures[];
extern __be32 *nfs_decode_dirent(struct xdr_stream *, struct nfs_entry *, struct nfs_server *, int);
diff --git a/fs/nfs/nfs2xdr.c b/fs/nfs/nfs2xdr.c
index 53db70e..1c5a2fa 100644
--- a/fs/nfs/nfs2xdr.c
+++ b/fs/nfs/nfs2xdr.c
@@ -802,7 +802,7 @@ nfs_xdr_statfsres(struct rpc_rqst *req, __be32 *p, struct nfs2_fsstat *res)
* We need to translate between nfs status return values and
* the local errno values which may not be the same.
*/
-static struct {
+static const struct {
int stat;
int errno;
} nfs_errtbl[] = {
@@ -842,20 +842,22 @@ static struct {
{ -1, -EIO }
};
-/*
- * Convert an NFS error code to a local one.
- * This one is used jointly by NFSv2 and NFSv3.
+/**
+ * nfs_stat_to_errno - convert an NFS status code to a local errno
+ * @status: NFS status code to convert
+ *
+ * Returns a local errno value, or -EIO if the NFS status code is
+ * not recognized. This function is used jointly by NFSv2 and NFSv3.
*/
-int
-nfs_stat_to_errno(int stat)
+int nfs_stat_to_errno(enum nfs_stat status)
{
int i;
for (i = 0; nfs_errtbl[i].stat != -1; i++) {
- if (nfs_errtbl[i].stat == stat)
+ if (nfs_errtbl[i].stat == (int)status)
return nfs_errtbl[i].errno;
}
- dprintk("nfs_stat_to_errno: bad nfs status return value: %d\n", stat);
+ dprintk("NFS: Unrecognized nfs status value: %u\n", status);
return nfs_errtbl[i].errno;
}
next prev parent reply other threads:[~2010-11-17 17:44 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-17 17:43 [PATCH 00/17] Update XDR functions for legacy NFS versions Chuck Lever
[not found] ` <20101117174112.29177.69734.stgit-RytpoXr2tKZ9HhUboXbp9zCvJB+x5qRC@public.gmane.org>
2010-11-17 17:43 ` [PATCH 01/17] NFS: Introduce new-style XDR encoding functions for NFSv2 Chuck Lever
2010-11-18 12:50 ` Boaz Harrosh
2010-11-18 15:24 ` Chuck Lever
2010-11-18 15:28 ` Boaz Harrosh
2010-11-17 17:43 ` [PATCH 02/17] NFS: Remove old NFSv2 encoder functions Chuck Lever
2010-11-17 17:44 ` [PATCH 03/17] NFS: Update xdr_encode_foo() functions that we're keeping Chuck Lever
2010-11-17 17:44 ` Chuck Lever [this message]
2010-11-17 17:44 ` [PATCH 05/17] NFS: Introduce new-style XDR decoding functions for NFSv2 Chuck Lever
2010-11-17 17:44 ` [PATCH 06/17] NFS: Replace old NFSv2 decoder functions with xdr_stream-based ones Chuck Lever
2010-11-17 17:44 ` [PATCH 07/17] NFS: Move and update xdr_decode_foo() functions that we're keeping Chuck Lever
2010-11-17 17:44 ` [PATCH 08/17] lockd: Introduce new-style XDR functions for NLMv3 Chuck Lever
2010-11-17 17:45 ` [PATCH 09/17] NFS: Introduce new-style XDR encoding functions for NFSv3 Chuck Lever
2010-11-17 17:45 ` [PATCH 10/17] NFS: Replace old NFSv3 encoder functions with xdr_stream-based ones Chuck Lever
2010-11-17 17:45 ` [PATCH 11/17] NFS: Remove unused old NFSv3 encoder functions Chuck Lever
2010-11-17 17:45 ` [PATCH 12/17] NFS: Update xdr_encode_foo() functions that we're keeping Chuck Lever
2010-11-17 17:45 ` [PATCH 13/17] NFS: Introduce new-style XDR decoding functions for NFSv2 Chuck Lever
2010-11-17 17:45 ` [PATCH 14/17] NFS: Switch in new NFSv3 decoder functions Chuck Lever
2010-11-17 17:46 ` [PATCH 15/17] NFS: Remove unused old " Chuck Lever
2010-11-17 17:46 ` [PATCH 16/17] NFS: Move and update xdr_decode_foo() functions that we're keeping Chuck Lever
2010-11-17 17:46 ` [PATCH 17/17] lockd: Introduce new-style XDR functions for NLMv4 Chuck Lever
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