-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * 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.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-#ifndef _LIBCFS_BITMAP_H_
-#define _LIBCFS_BITMAP_H_
-
-typedef struct {
- 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))
-
-static inline
-cfs_bitmap_t *CFS_ALLOCATE_BITMAP(int size)
-{
- cfs_bitmap_t *ptr;
-
- OBD_ALLOC(ptr, CFS_BITMAP_SIZE(size));
- if (ptr == NULL)
- return ptr;
-
- ptr->size = size;
-
- return ptr;
-}
-
-#define CFS_FREE_BITMAP(ptr) OBD_FREE(ptr, CFS_BITMAP_SIZE(ptr->size))
-
-static inline
-void cfs_bitmap_set(cfs_bitmap_t *bitmap, int nbit)
-{
- set_bit(nbit, bitmap->data);
-}
-
-static inline
-void cfs_bitmap_clear(cfs_bitmap_t *bitmap, int nbit)
-{
- test_and_clear_bit(nbit, bitmap->data);
-}
-
-static inline
-int cfs_bitmap_check(cfs_bitmap_t *bitmap, int nbit)
-{
- return test_bit(nbit, bitmap->data);
-}
-
-static inline
-int cfs_bitmap_test_and_clear(cfs_bitmap_t *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)
-{
- return find_first_bit(bitmap->data, bitmap->size) == bitmap->size;
-}
-
-static inline
-void cfs_bitmap_copy(cfs_bitmap_t *new, cfs_bitmap_t *old)
-{
- int newsize;
-
- LASSERT(new->size >= old->size);
- newsize = new->size;
- memcpy(new, old, CFS_BITMAP_SIZE(old->size));
- new->size = newsize;
-}
-
-#define cfs_foreach_bit(bitmap, pos) \
- for ((pos) = find_first_bit((bitmap)->data, bitmap->size); \
- (pos) < (bitmap)->size; \
- (pos) = find_next_bit((bitmap)->data, (bitmap)->size, (pos) + 1))
-
-#endif