diff options
Diffstat (limited to 'fs/nfs_common/common.c')
-rw-r--r-- | fs/nfs_common/common.c | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/fs/nfs_common/common.c b/fs/nfs_common/common.c index a4ee95da2174..34a115176f97 100644 --- a/fs/nfs_common/common.c +++ b/fs/nfs_common/common.c @@ -2,6 +2,7 @@ #include <linux/module.h> #include <linux/nfs_common.h> +#include <linux/nfs4.h> /* * We need to translate between nfs status return values and @@ -65,3 +66,69 @@ int nfs_stat_to_errno(enum nfs_stat status) return nfs_errtbl[i].errno; } EXPORT_SYMBOL_GPL(nfs_stat_to_errno); + +/* + * We need to translate between nfs v4 status return values and + * the local errno values which may not be the same. + */ +static const struct { + int stat; + int errno; +} nfs4_errtbl[] = { + { NFS4_OK, 0 }, + { NFS4ERR_PERM, -EPERM }, + { NFS4ERR_NOENT, -ENOENT }, + { NFS4ERR_IO, -errno_NFSERR_IO}, + { NFS4ERR_NXIO, -ENXIO }, + { NFS4ERR_ACCESS, -EACCES }, + { NFS4ERR_EXIST, -EEXIST }, + { NFS4ERR_XDEV, -EXDEV }, + { NFS4ERR_NOTDIR, -ENOTDIR }, + { NFS4ERR_ISDIR, -EISDIR }, + { NFS4ERR_INVAL, -EINVAL }, + { NFS4ERR_FBIG, -EFBIG }, + { NFS4ERR_NOSPC, -ENOSPC }, + { NFS4ERR_ROFS, -EROFS }, + { NFS4ERR_MLINK, -EMLINK }, + { NFS4ERR_NAMETOOLONG, -ENAMETOOLONG }, + { NFS4ERR_NOTEMPTY, -ENOTEMPTY }, + { NFS4ERR_DQUOT, -EDQUOT }, + { NFS4ERR_STALE, -ESTALE }, + { NFS4ERR_BADHANDLE, -EBADHANDLE }, + { NFS4ERR_BAD_COOKIE, -EBADCOOKIE }, + { NFS4ERR_NOTSUPP, -ENOTSUPP }, + { NFS4ERR_TOOSMALL, -ETOOSMALL }, + { NFS4ERR_SERVERFAULT, -EREMOTEIO }, + { NFS4ERR_BADTYPE, -EBADTYPE }, + { NFS4ERR_LOCKED, -EAGAIN }, + { NFS4ERR_SYMLINK, -ELOOP }, + { NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP }, + { NFS4ERR_DEADLOCK, -EDEADLK }, + { NFS4ERR_NOXATTR, -ENODATA }, + { NFS4ERR_XATTR2BIG, -E2BIG }, + { -1, -EIO } +}; + +/* + * Convert an NFS error code to a local one. + * This one is used by NFSv4. + */ +int nfs4_stat_to_errno(int stat) +{ + int i; + for (i = 0; nfs4_errtbl[i].stat != -1; i++) { + if (nfs4_errtbl[i].stat == stat) + return nfs4_errtbl[i].errno; + } + if (stat <= 10000 || stat > 10100) { + /* The server is looney tunes. */ + return -EREMOTEIO; + } + /* If we cannot translate the error, the recovery routines should + * handle it. + * Note: remaining NFSv4 error codes have values > 10000, so should + * not conflict with native Linux error codes. + */ + return -stat; +} +EXPORT_SYMBOL_GPL(nfs4_stat_to_errno); |