[PATCH] b44: add parameter

[linux-2.6] / fs / ntfs / ntfs.h

diff --git a/fs/ntfs/ntfs.h b/fs/ntfs/ntfs.h
index 446b5014115cfbc5695a3c0543815ddd363602b0..bf7b3d7c09303a17de113173b80b2b8890d97ecb 100644 (file)
--- a/fs/ntfs/ntfs.h
+++ b/fs/ntfs/ntfs.h
@@ -50,23 +50,23 @@ typedef enum {
 /* Global variables. */
 
 /* Slab caches (from super.c). */
-extern kmem_cache_t *ntfs_name_cache;
-extern kmem_cache_t *ntfs_inode_cache;
-extern kmem_cache_t *ntfs_big_inode_cache;
-extern kmem_cache_t *ntfs_attr_ctx_cache;
-extern kmem_cache_t *ntfs_index_ctx_cache;
+extern struct kmem_cache *ntfs_name_cache;
+extern struct kmem_cache *ntfs_inode_cache;
+extern struct kmem_cache *ntfs_big_inode_cache;
+extern struct kmem_cache *ntfs_attr_ctx_cache;
+extern struct kmem_cache *ntfs_index_ctx_cache;
 
 /* The various operations structs defined throughout the driver files. */
 extern struct address_space_operations ntfs_aops;
 extern struct address_space_operations ntfs_mst_aops;
 
-extern struct  file_operations ntfs_file_ops;
+extern const struct  file_operations ntfs_file_ops;
 extern struct inode_operations ntfs_file_inode_ops;
 
-extern struct  file_operations ntfs_dir_ops;
+extern const struct  file_operations ntfs_dir_ops;
 extern struct inode_operations ntfs_dir_inode_ops;
 
-extern struct  file_operations ntfs_empty_file_ops;
+extern const struct  file_operations ntfs_empty_file_ops;
 extern struct inode_operations ntfs_empty_inode_ops;
 
 extern struct export_operations ntfs_export_ops;
@@ -91,7 +91,7 @@ extern void free_compression_buffers(void);
 
 /* From fs/ntfs/super.c */
 #define default_upcase_len 0x10000
-extern struct semaphore ntfs_lock;
+extern struct mutex ntfs_lock;
 
 typedef struct {
        int val;
@@ -132,4 +132,33 @@ extern int ntfs_ucstonls(const ntfs_volume *vol, const ntfschar *ins,
 /* From fs/ntfs/upcase.c */
 extern ntfschar *generate_default_upcase(void);
 
+static inline int ntfs_ffs(int x)
+{
+       int r = 1;
+
+       if (!x)
+               return 0;
+       if (!(x & 0xffff)) {
+               x >>= 16;
+               r += 16;
+       }
+       if (!(x & 0xff)) {
+               x >>= 8;
+               r += 8;
+       }
+       if (!(x & 0xf)) {
+               x >>= 4;
+               r += 4;
+       }
+       if (!(x & 3)) {
+               x >>= 2;
+               r += 2;
+       }
+       if (!(x & 1)) {
+               x >>= 1;
+               r += 1;
+       }
+       return r;
+}
+
 #endif /* _LINUX_NTFS_H */