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NFS: Use the "nfs_stat" enum for nfs_stat_to_errno()'s argument

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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>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Chuck Lever 2010-12-14 14:55:00 +00:00 committed by Trond Myklebust
parent 282ac2a573
commit 8582849324
2 changed files with 11 additions and 9 deletions
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2
fs/nfs/internal.h
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@ -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);

18
fs/nfs/nfs2xdr.c
View File

@ -804,7 +804,7 @@ 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[] = {
@ -844,20 +844,22 @@ 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;
}