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Common nfs4_stat_to_errno() is used by fs/nfs/nfs4xdr.c and will be used by fs/nfs/localio.c Signed-off-by: Mike Snitzer <snitzer@kernel.org> Reviewed-by: Jeff Layton <jlayton@kernel.org> Reviewed-by: NeilBrown <neilb@suse.de> Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com>
135 lines
3.5 KiB
C
135 lines
3.5 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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#include <linux/module.h>
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#include <linux/nfs_common.h>
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#include <linux/nfs4.h>
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/*
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* We need to translate between nfs status return values and
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* the local errno values which may not be the same.
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*/
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static const struct {
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int stat;
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int errno;
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} nfs_errtbl[] = {
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{ NFS_OK, 0 },
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{ NFSERR_PERM, -EPERM },
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{ NFSERR_NOENT, -ENOENT },
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{ NFSERR_IO, -errno_NFSERR_IO},
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{ NFSERR_NXIO, -ENXIO },
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/* { NFSERR_EAGAIN, -EAGAIN }, */
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{ NFSERR_ACCES, -EACCES },
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{ NFSERR_EXIST, -EEXIST },
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{ NFSERR_XDEV, -EXDEV },
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{ NFSERR_NODEV, -ENODEV },
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{ NFSERR_NOTDIR, -ENOTDIR },
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{ NFSERR_ISDIR, -EISDIR },
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{ NFSERR_INVAL, -EINVAL },
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{ NFSERR_FBIG, -EFBIG },
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{ NFSERR_NOSPC, -ENOSPC },
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{ NFSERR_ROFS, -EROFS },
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{ NFSERR_MLINK, -EMLINK },
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{ NFSERR_NAMETOOLONG, -ENAMETOOLONG },
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{ NFSERR_NOTEMPTY, -ENOTEMPTY },
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{ NFSERR_DQUOT, -EDQUOT },
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{ NFSERR_STALE, -ESTALE },
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{ NFSERR_REMOTE, -EREMOTE },
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#ifdef EWFLUSH
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{ NFSERR_WFLUSH, -EWFLUSH },
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#endif
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{ NFSERR_BADHANDLE, -EBADHANDLE },
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{ NFSERR_NOT_SYNC, -ENOTSYNC },
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{ NFSERR_BAD_COOKIE, -EBADCOOKIE },
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{ NFSERR_NOTSUPP, -ENOTSUPP },
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{ NFSERR_TOOSMALL, -ETOOSMALL },
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{ NFSERR_SERVERFAULT, -EREMOTEIO },
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{ NFSERR_BADTYPE, -EBADTYPE },
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{ NFSERR_JUKEBOX, -EJUKEBOX },
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{ -1, -EIO }
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};
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/**
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* nfs_stat_to_errno - convert an NFS status code to a local errno
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* @status: NFS status code to convert
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*
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* Returns a local errno value, or -EIO if the NFS status code is
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* not recognized. This function is used jointly by NFSv2 and NFSv3.
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*/
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int nfs_stat_to_errno(enum nfs_stat status)
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{
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int i;
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for (i = 0; nfs_errtbl[i].stat != -1; i++) {
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if (nfs_errtbl[i].stat == (int)status)
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return nfs_errtbl[i].errno;
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}
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return nfs_errtbl[i].errno;
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}
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EXPORT_SYMBOL_GPL(nfs_stat_to_errno);
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/*
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* We need to translate between nfs v4 status return values and
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* the local errno values which may not be the same.
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*/
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static const struct {
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int stat;
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int errno;
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} nfs4_errtbl[] = {
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{ NFS4_OK, 0 },
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{ NFS4ERR_PERM, -EPERM },
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{ NFS4ERR_NOENT, -ENOENT },
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{ NFS4ERR_IO, -errno_NFSERR_IO},
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{ NFS4ERR_NXIO, -ENXIO },
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{ NFS4ERR_ACCESS, -EACCES },
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{ NFS4ERR_EXIST, -EEXIST },
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{ NFS4ERR_XDEV, -EXDEV },
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{ NFS4ERR_NOTDIR, -ENOTDIR },
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{ NFS4ERR_ISDIR, -EISDIR },
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{ NFS4ERR_INVAL, -EINVAL },
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{ NFS4ERR_FBIG, -EFBIG },
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{ NFS4ERR_NOSPC, -ENOSPC },
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{ NFS4ERR_ROFS, -EROFS },
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{ NFS4ERR_MLINK, -EMLINK },
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{ NFS4ERR_NAMETOOLONG, -ENAMETOOLONG },
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{ NFS4ERR_NOTEMPTY, -ENOTEMPTY },
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{ NFS4ERR_DQUOT, -EDQUOT },
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{ NFS4ERR_STALE, -ESTALE },
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{ NFS4ERR_BADHANDLE, -EBADHANDLE },
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{ NFS4ERR_BAD_COOKIE, -EBADCOOKIE },
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{ NFS4ERR_NOTSUPP, -ENOTSUPP },
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{ NFS4ERR_TOOSMALL, -ETOOSMALL },
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{ NFS4ERR_SERVERFAULT, -EREMOTEIO },
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{ NFS4ERR_BADTYPE, -EBADTYPE },
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{ NFS4ERR_LOCKED, -EAGAIN },
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{ NFS4ERR_SYMLINK, -ELOOP },
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{ NFS4ERR_OP_ILLEGAL, -EOPNOTSUPP },
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{ NFS4ERR_DEADLOCK, -EDEADLK },
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{ NFS4ERR_NOXATTR, -ENODATA },
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{ NFS4ERR_XATTR2BIG, -E2BIG },
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{ -1, -EIO }
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};
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/*
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* Convert an NFS error code to a local one.
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* This one is used by NFSv4.
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*/
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int nfs4_stat_to_errno(int stat)
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{
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int i;
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for (i = 0; nfs4_errtbl[i].stat != -1; i++) {
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if (nfs4_errtbl[i].stat == stat)
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return nfs4_errtbl[i].errno;
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}
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if (stat <= 10000 || stat > 10100) {
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/* The server is looney tunes. */
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return -EREMOTEIO;
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}
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/* If we cannot translate the error, the recovery routines should
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* handle it.
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* Note: remaining NFSv4 error codes have values > 10000, so should
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* not conflict with native Linux error codes.
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*/
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return -stat;
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}
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EXPORT_SYMBOL_GPL(nfs4_stat_to_errno);
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