diff options
Diffstat (limited to 'fs/cifs/cifsfs.h')
| -rw-r--r-- | fs/cifs/cifsfs.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/fs/cifs/cifsfs.h b/fs/cifs/cifsfs.h index 9570a0e8023..586df24c9ab 100644 --- a/fs/cifs/cifsfs.h +++ b/fs/cifs/cifsfs.h @@ -24,6 +24,19 @@ #define ROOT_I 2 +/* + * ino_t is 32-bits on 32-bit arch. We have to squash the 64-bit value down + * so that it will fit. + */ +static inline ino_t +cifs_uniqueid_to_ino_t(u64 fileid) +{ + ino_t ino = (ino_t) fileid; + if (sizeof(ino_t) < sizeof(u64)) + ino ^= fileid >> (sizeof(u64)-sizeof(ino_t)) * 8; + return ino; +} + extern struct file_system_type cifs_fs_type; extern const struct address_space_operations cifs_addr_ops; extern const struct address_space_operations cifs_addr_ops_smallbuf; |