LCOV - code coverage report
Current view: top level - include/linux - nfs.h (source / functions) Hit Total Coverage
Test: coverage.info Lines: 0 3 0.0 %
Date: 2014-02-18 Functions: 0 0 -
Branches: 0 8 0.0 %

           Branch data     Line data    Source code
       1                 :            : /*
       2                 :            :  * NFS protocol definitions
       3                 :            :  *
       4                 :            :  * This file contains constants mostly for Version 2 of the protocol,
       5                 :            :  * but also has a couple of NFSv3 bits in (notably the error codes).
       6                 :            :  */
       7                 :            : #ifndef _LINUX_NFS_H
       8                 :            : #define _LINUX_NFS_H
       9                 :            : 
      10                 :            : #include <linux/sunrpc/msg_prot.h>
      11                 :            : #include <linux/string.h>
      12                 :            : #include <uapi/linux/nfs.h>
      13                 :            : 
      14                 :            : /*
      15                 :            :  * This is the kernel NFS client file handle representation
      16                 :            :  */
      17                 :            : #define NFS_MAXFHSIZE           128
      18                 :            : struct nfs_fh {
      19                 :            :         unsigned short          size;
      20                 :            :         unsigned char           data[NFS_MAXFHSIZE];
      21                 :            : };
      22                 :            : 
      23                 :            : /*
      24                 :            :  * Returns a zero iff the size and data fields match.
      25                 :            :  * Checks only "size" bytes in the data field.
      26                 :            :  */
      27                 :            : static inline int nfs_compare_fh(const struct nfs_fh *a, const struct nfs_fh *b)
      28                 :            : {
      29 [ #  # ][ #  # ]:          0 :         return a->size != b->size || memcmp(a->data, b->data, a->size) != 0;
         [ #  # ][ #  # ]
      30                 :            : }
      31                 :            : 
      32                 :            : static inline void nfs_copy_fh(struct nfs_fh *target, const struct nfs_fh *source)
      33                 :            : {
      34                 :          0 :         target->size = source->size;
      35                 :          0 :         memcpy(target->data, source->data, source->size);
      36                 :            : }
      37                 :            : 
      38                 :            : 
      39                 :            : /*
      40                 :            :  * This is really a general kernel constant, but since nothing like
      41                 :            :  * this is defined in the kernel headers, I have to do it here.
      42                 :            :  */
      43                 :            : #define NFS_OFFSET_MAX          ((__s64)((~(__u64)0) >> 1))
      44                 :            : 
      45                 :            : 
      46                 :            : enum nfs3_stable_how {
      47                 :            :         NFS_UNSTABLE = 0,
      48                 :            :         NFS_DATA_SYNC = 1,
      49                 :            :         NFS_FILE_SYNC = 2
      50                 :            : };
      51                 :            : #endif /* _LINUX_NFS_H */

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