diff options
Diffstat (limited to 'fs/nfs/internal.h')
| -rw-r--r-- | fs/nfs/internal.h | 24 |
1 files changed, 21 insertions, 3 deletions
diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h index bea0b016bd7..a28f6ce2e13 100644 --- a/fs/nfs/internal.h +++ b/fs/nfs/internal.h @@ -93,15 +93,15 @@ extern void nfs_destroy_directcache(void); /* nfs2xdr.c */ extern int nfs_stat_to_errno(int); extern struct rpc_procinfo nfs_procedures[]; -extern u32 * nfs_decode_dirent(u32 *, struct nfs_entry *, int); +extern __be32 * nfs_decode_dirent(__be32 *, struct nfs_entry *, int); /* nfs3xdr.c */ extern struct rpc_procinfo nfs3_procedures[]; -extern u32 *nfs3_decode_dirent(u32 *, struct nfs_entry *, int); +extern __be32 *nfs3_decode_dirent(__be32 *, struct nfs_entry *, int); /* nfs4xdr.c */ #ifdef CONFIG_NFS_V4 -extern u32 *nfs4_decode_dirent(u32 *p, struct nfs_entry *entry, int plus); +extern __be32 *nfs4_decode_dirent(__be32 *p, struct nfs_entry *entry, int plus); #endif /* nfs4proc.c */ @@ -217,3 +217,21 @@ void nfs_super_set_maxbytes(struct super_block *sb, __u64 maxfilesize) if (sb->s_maxbytes > MAX_LFS_FILESIZE || sb->s_maxbytes <= 0) sb->s_maxbytes = MAX_LFS_FILESIZE; } + +/* + * Determine the number of bytes of data the page contains + */ +static inline +unsigned int nfs_page_length(struct page *page) +{ + loff_t i_size = i_size_read(page->mapping->host); + + if (i_size > 0) { + pgoff_t end_index = (i_size - 1) >> PAGE_CACHE_SHIFT; + if (page->index < end_index) + return PAGE_CACHE_SIZE; + if (page->index == end_index) + return ((i_size - 1) & ~PAGE_CACHE_MASK) + 1; + } + return 0; +} |