*
* You should have received a copy of the GNU General Public License
* version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
+ * http://www.gnu.org/licenses/gpl-2.0.html
*
* GPL HEADER END
*/
#ifndef _LIBCFS_BITMAP_H_
#define _LIBCFS_BITMAP_H_
-#ifndef __KERNEL__
-#define DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d))
-#define BITS_TO_LONGS(nr) DIV_ROUND_UP(nr, 8 * sizeof(long))
-
-#define DECLARE_BITMAP(name, bits) \
- unsigned long name[BITS_TO_LONGS(bits)]
-#endif /* !__KERNEL__ */
+#include <linux/interrupt.h>
+#include <libcfs/libcfs_private.h>
-typedef struct {
- unsigned int size;
+struct cfs_bitmap {
+ unsigned int size;
unsigned long data[0];
-} cfs_bitmap_t;
+};
#define CFS_BITMAP_SIZE(nbits) \
- (((nbits/BITS_PER_LONG)+1)*sizeof(long)+sizeof(cfs_bitmap_t))
+ (BITS_TO_LONGS(nbits) * sizeof(long) + sizeof(struct cfs_bitmap))
static inline
-cfs_bitmap_t *CFS_ALLOCATE_BITMAP(int size)
+struct cfs_bitmap *CFS_ALLOCATE_BITMAP(int size)
{
- cfs_bitmap_t *ptr;
+ struct cfs_bitmap *ptr;
LIBCFS_ALLOC(ptr, CFS_BITMAP_SIZE(size));
if (ptr == NULL)
RETURN(ptr);
}
-static inline void CFS_RESET_BITMAP(cfs_bitmap_t *bitmap)
+static inline void CFS_RESET_BITMAP(struct cfs_bitmap *bitmap)
{
if (bitmap->size > 0) {
int nbits = bitmap->size;
#define CFS_FREE_BITMAP(ptr) LIBCFS_FREE(ptr, CFS_BITMAP_SIZE(ptr->size))
static inline
-void cfs_bitmap_set(cfs_bitmap_t *bitmap, int nbit)
+void cfs_bitmap_set(struct cfs_bitmap *bitmap, int nbit)
{
set_bit(nbit, bitmap->data);
}
static inline
-void cfs_bitmap_clear(cfs_bitmap_t *bitmap, int nbit)
+void cfs_bitmap_clear(struct cfs_bitmap *bitmap, int nbit)
{
test_and_clear_bit(nbit, bitmap->data);
}
static inline
-int cfs_bitmap_check(cfs_bitmap_t *bitmap, int nbit)
+int cfs_bitmap_check(struct cfs_bitmap *bitmap, int nbit)
{
return test_bit(nbit, bitmap->data);
}
static inline
-int cfs_bitmap_test_and_clear(cfs_bitmap_t *bitmap, int nbit)
+int cfs_bitmap_test_and_clear(struct cfs_bitmap *bitmap, int nbit)
{
return test_and_clear_bit(nbit, bitmap->data);
}
/* return 0 is bitmap has none set bits */
static inline
-int cfs_bitmap_check_empty(cfs_bitmap_t *bitmap)
+int cfs_bitmap_check_empty(struct cfs_bitmap *bitmap)
{
return find_first_bit(bitmap->data, bitmap->size) == bitmap->size;
}
static inline
-void cfs_bitmap_copy(cfs_bitmap_t *new, cfs_bitmap_t *old)
+void cfs_bitmap_copy(struct cfs_bitmap *new, struct cfs_bitmap *old)
{
size_t newsize;