nfs: return negative error value from nfs{,4}_stat_to_errno

All use sites for nfs{,4}_stat_to_errno negate their return value.
It's more efficient to return a negative error from the stat_to_errno convertors
rather than negating its return value everywhere. This also produces slightly
smaller code.

Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

1 files changed, 38 insertions, 38 deletions

diff --git a/fs/nfs/nfs2xdr.c b/fs/nfs/nfs2xdr.c
index 86a80b33ec82..28bab67d1519 100644
--- a/fs/nfs/nfs2xdr.c
+++ b/fs/nfs/nfs2xdr.c
@@ -267,7 +267,7 @@ nfs_xdr_readres(struct rpc_rqst *req, __be32 *p, struct nfs_readres *res)
         int status;
 
         if ((status = ntohl(*p++)))
-                return -nfs_stat_to_errno(status);
+                return nfs_stat_to_errno(status);
         p = xdr_decode_fattr(p, res->fattr);
 
         count = ntohl(*p++);
@@ -432,7 +432,7 @@ nfs_xdr_readdirres(struct rpc_rqst *req, __be32 *p, void *dummy)
         __be32 *end, *entry, *kaddr;
 
         if ((status = ntohl(*p++)))
-                return -nfs_stat_to_errno(status);
+                return nfs_stat_to_errno(status);
 
         hdrlen = (u8 *) p - (u8 *) iov->iov_base;
         if (iov->iov_len < hdrlen) {
@@ -537,7 +537,7 @@ nfs_xdr_stat(struct rpc_rqst *req, __be32 *p, void *dummy)
         int     status;
 
         if ((status = ntohl(*p++)) != 0)
-                status = -nfs_stat_to_errno(status);
+                status = nfs_stat_to_errno(status);
         return status;
 }
 
@@ -551,7 +551,7 @@ nfs_xdr_attrstat(struct rpc_rqst *req, __be32 *p, struct nfs_fattr *fattr)
         int     status;
 
         if ((status = ntohl(*p++)))
-                return -nfs_stat_to_errno(status);
+                return nfs_stat_to_errno(status);
         xdr_decode_fattr(p, fattr);
         return 0;
 }
@@ -566,7 +566,7 @@ nfs_xdr_diropres(struct rpc_rqst *req, __be32 *p, struct nfs_diropok *res)
         int     status;
 
         if ((status = ntohl(*p++)))
-                return -nfs_stat_to_errno(status);
+                return nfs_stat_to_errno(status);
         p = xdr_decode_fhandle(p, res->fh);
         xdr_decode_fattr(p, res->fattr);
         return 0;
@@ -604,7 +604,7 @@ nfs_xdr_readlinkres(struct rpc_rqst *req, __be32 *p, void *dummy)
         int     status;
 
         if ((status = ntohl(*p++)))
-                return -nfs_stat_to_errno(status);
+                return nfs_stat_to_errno(status);
         /* Convert length of symlink */
         len = ntohl(*p++);
         if (len >= rcvbuf->page_len) {
@@ -653,7 +653,7 @@ nfs_xdr_statfsres(struct rpc_rqst *req, __be32 *p, struct nfs2_fsstat *res)
         int     status;
 
         if ((status = ntohl(*p++)))
-                return -nfs_stat_to_errno(status);
+                return nfs_stat_to_errno(status);
 
         res->tsize  = ntohl(*p++);
         res->bsize  = ntohl(*p++);
@@ -672,39 +672,39 @@ static struct {
         int errno;
 } nfs_errtbl[] = {
         { NFS_OK,               0               },
-        { NFSERR_PERM,          EPERM           },
-        { NFSERR_NOENT,         ENOENT          },
-        { NFSERR_IO,            errno_NFSERR_IO },
-        { NFSERR_NXIO,          ENXIO           },
-/*      { NFSERR_EAGAIN,        EAGAIN          }, */
-        { NFSERR_ACCES,         EACCES          },
-        { NFSERR_EXIST,         EEXIST          },
-        { NFSERR_XDEV,          EXDEV           },
-        { NFSERR_NODEV,         ENODEV          },
-        { NFSERR_NOTDIR,        ENOTDIR         },
-        { NFSERR_ISDIR,         EISDIR          },
-        { NFSERR_INVAL,         EINVAL          },
-        { NFSERR_FBIG,          EFBIG           },
-        { NFSERR_NOSPC,         ENOSPC          },
-        { NFSERR_ROFS,          EROFS           },
-        { NFSERR_MLINK,         EMLINK          },
-        { NFSERR_NAMETOOLONG,   ENAMETOOLONG    },
-        { NFSERR_NOTEMPTY,      ENOTEMPTY       },
-        { NFSERR_DQUOT,         EDQUOT          },
-        { NFSERR_STALE,         ESTALE          },
-        { NFSERR_REMOTE,        EREMOTE         },
+        { NFSERR_PERM,          -EPERM          },
+        { NFSERR_NOENT,         -ENOENT         },
+        { NFSERR_IO,            -errno_NFSERR_IO},
+        { NFSERR_NXIO,          -ENXIO          },
+/*      { NFSERR_EAGAIN,        -EAGAIN         }, */
+        { NFSERR_ACCES,         -EACCES         },
+        { NFSERR_EXIST,         -EEXIST         },
+        { NFSERR_XDEV,          -EXDEV          },
+        { NFSERR_NODEV,         -ENODEV         },
+        { NFSERR_NOTDIR,        -ENOTDIR        },
+        { NFSERR_ISDIR,         -EISDIR         },
+        { NFSERR_INVAL,         -EINVAL         },
+        { NFSERR_FBIG,          -EFBIG          },
+        { NFSERR_NOSPC,         -ENOSPC         },
+        { NFSERR_ROFS,          -EROFS          },
+        { NFSERR_MLINK,         -EMLINK         },
+        { NFSERR_NAMETOOLONG,   -ENAMETOOLONG   },
+        { NFSERR_NOTEMPTY,      -ENOTEMPTY      },
+        { NFSERR_DQUOT,         -EDQUOT         },
+        { NFSERR_STALE,         -ESTALE         },
+        { NFSERR_REMOTE,        -EREMOTE        },
 #ifdef EWFLUSH
-        { NFSERR_WFLUSH,        EWFLUSH         },
+        { NFSERR_WFLUSH,        -EWFLUSH        },
 #endif
-        { NFSERR_BADHANDLE,     EBADHANDLE      },
-        { NFSERR_NOT_SYNC,      ENOTSYNC        },
-        { NFSERR_BAD_COOKIE,    EBADCOOKIE      },
-        { NFSERR_NOTSUPP,       ENOTSUPP        },
-        { NFSERR_TOOSMALL,      ETOOSMALL       },
-        { NFSERR_SERVERFAULT,   ESERVERFAULT    },
-        { NFSERR_BADTYPE,       EBADTYPE        },
-        { NFSERR_JUKEBOX,       EJUKEBOX        },
-        { -1,                   EIO             }
+        { NFSERR_BADHANDLE,     -EBADHANDLE     },
+        { NFSERR_NOT_SYNC,      -ENOTSYNC       },
+        { NFSERR_BAD_COOKIE,    -EBADCOOKIE     },
+        { NFSERR_NOTSUPP,       -ENOTSUPP       },
+        { NFSERR_TOOSMALL,      -ETOOSMALL      },
+        { NFSERR_SERVERFAULT,   -ESERVERFAULT   },
+        { NFSERR_BADTYPE,       -EBADTYPE       },
+        { NFSERR_JUKEBOX,       -EJUKEBOX       },
+        { -1,                   -EIO            }
 };
 
 /*