diff options
Diffstat (limited to 'fs/orangefs/pvfs2-utils.c')
-rw-r--r-- | fs/orangefs/pvfs2-utils.c | 58 |
1 files changed, 48 insertions, 10 deletions
diff --git a/fs/orangefs/pvfs2-utils.c b/fs/orangefs/pvfs2-utils.c index 834e06674d0a..086ebbb36570 100644 --- a/fs/orangefs/pvfs2-utils.c +++ b/fs/orangefs/pvfs2-utils.c @@ -662,20 +662,45 @@ __u64 pvfs2_convert_time_field(void *time_ptr) return pvfs2_time; } -/* macro defined in include/pvfs2-types.h */ -DECLARE_ERRNO_MAPPING_AND_FN(); +/* The following is a very dirty hack that is now a permanent part of the + * PVFS2 protocol. See protocol.h for more error definitions. */ + +/* The order matches include/pvfs2-types.h in the OrangeFS source. */ +static int PINT_errno_mapping[] = { + 0, EPERM, ENOENT, EINTR, EIO, ENXIO, EBADF, EAGAIN, ENOMEM, + EFAULT, EBUSY, EEXIST, ENODEV, ENOTDIR, EISDIR, EINVAL, EMFILE, + EFBIG, ENOSPC, EROFS, EMLINK, EPIPE, EDEADLK, ENAMETOOLONG, + ENOLCK, ENOSYS, ENOTEMPTY, ELOOP, EWOULDBLOCK, ENOMSG, EUNATCH, + EBADR, EDEADLOCK, ENODATA, ETIME, ENONET, EREMOTE, ECOMM, + EPROTO, EBADMSG, EOVERFLOW, ERESTART, EMSGSIZE, EPROTOTYPE, + ENOPROTOOPT, EPROTONOSUPPORT, EOPNOTSUPP, EADDRINUSE, + EADDRNOTAVAIL, ENETDOWN, ENETUNREACH, ENETRESET, ENOBUFS, + ETIMEDOUT, ECONNREFUSED, EHOSTDOWN, EHOSTUNREACH, EALREADY, + EACCES, ECONNRESET, ERANGE +}; int pvfs2_normalize_to_errno(__s32 error_code) { - if (error_code > 0) { + /* Success */ + if (error_code == 0) { + return 0; + /* This shouldn't ever happen. If it does it should be fixed on the + * server. */ + } else if (error_code > 0) { gossip_err("pvfs2: error status receieved.\n"); gossip_err("pvfs2: assuming error code is inverted.\n"); error_code = -error_code; } - /* convert any error codes that are in pvfs2 format */ - if (IS_PVFS_NON_ERRNO_ERROR(-error_code)) { - if (PVFS_NON_ERRNO_ERROR_CODE(-error_code) == PVFS_ECANCEL) { + /* XXX: This is very bad since error codes from PVFS2 may not be + * suitable for return into userspace. */ + + /* Convert PVFS2 error values into errno values suitable for return + * from the kernel. */ + if ((-error_code) & PVFS_NON_ERRNO_ERROR_BIT) { + if (((-error_code) & + (PVFS_ERROR_NUMBER_BITS|PVFS_NON_ERRNO_ERROR_BIT| + PVFS_ERROR_BIT)) == PVFS_ECANCEL) { /* * cancellation error codes generally correspond to * a timeout from the client's perspective @@ -683,12 +708,25 @@ int pvfs2_normalize_to_errno(__s32 error_code) error_code = -ETIMEDOUT; } else { /* assume a default error code */ - gossip_err("pvfs2: warning: got error code without errno equivalent: %d.\n", - error_code); + gossip_err("pvfs2: warning: got error code without " + "errno equivalent: %d.\n", error_code); error_code = -EINVAL; } - } else if (IS_PVFS_ERROR(-error_code)) { - error_code = -PVFS_ERROR_TO_ERRNO(-error_code); + + /* Convert PVFS2 encoded errno values into regular errno values. */ + } else if ((-error_code) & PVFS_ERROR_BIT) { + __u32 i; + i = (-error_code) & ~(PVFS_ERROR_BIT|PVFS_ERROR_CLASS_BITS); + if (i < sizeof PINT_errno_mapping/sizeof *PINT_errno_mapping) + error_code = -PINT_errno_mapping[i]; + else + error_code = -EINVAL; + + /* Only PVFS2 protocol error codes should ever come here. Otherwise + * there is a bug somewhere. */ + } else { + gossip_err("pvfs2: pvfs2_normalize_to_errno: got error code" + "which is not from PVFS2.\n"); } return error_code; } |