From 57f0f512b273f60d52568b8c6b77e17f5636edc0 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Andr=C3=A9=20Fabian=20Silva=20Delgado?= Date: Wed, 5 Aug 2015 17:04:01 -0300 Subject: Initial import --- include/linux/nfs.h | 54 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 include/linux/nfs.h (limited to 'include/linux/nfs.h') diff --git a/include/linux/nfs.h b/include/linux/nfs.h new file mode 100644 index 000000000..610af5155 --- /dev/null +++ b/include/linux/nfs.h @@ -0,0 +1,54 @@ +/* + * NFS protocol definitions + * + * This file contains constants mostly for Version 2 of the protocol, + * but also has a couple of NFSv3 bits in (notably the error codes). + */ +#ifndef _LINUX_NFS_H +#define _LINUX_NFS_H + +#include +#include +#include + +/* + * This is the kernel NFS client file handle representation + */ +#define NFS_MAXFHSIZE 128 +struct nfs_fh { + unsigned short size; + unsigned char data[NFS_MAXFHSIZE]; +}; + +/* + * Returns a zero iff the size and data fields match. + * Checks only "size" bytes in the data field. + */ +static inline int nfs_compare_fh(const struct nfs_fh *a, const struct nfs_fh *b) +{ + return a->size != b->size || memcmp(a->data, b->data, a->size) != 0; +} + +static inline void nfs_copy_fh(struct nfs_fh *target, const struct nfs_fh *source) +{ + target->size = source->size; + memcpy(target->data, source->data, source->size); +} + + +/* + * This is really a general kernel constant, but since nothing like + * this is defined in the kernel headers, I have to do it here. + */ +#define NFS_OFFSET_MAX ((__s64)((~(__u64)0) >> 1)) + + +enum nfs3_stable_how { + NFS_UNSTABLE = 0, + NFS_DATA_SYNC = 1, + NFS_FILE_SYNC = 2, + + /* used by direct.c to mark verf as invalid */ + NFS_INVALID_STABLE_HOW = -1 +}; +#endif /* _LINUX_NFS_H */ -- cgit v1.2.3