27 int bit_map_string_get(struct bit_map *t, int len, int align)  in bit_map_string_get()  argument
34 	if (t->num_colors) {  in bit_map_string_get()
37 		align = t->num_colors;  in bit_map_string_get()
46 	if (align < 0 || align >= t->size)  in bit_map_string_get()
48 	if (len <= 0 || len > t->size)  in bit_map_string_get()
52 	spin_lock(&t->lock);  in bit_map_string_get()
53 	if (len < t->last_size)  in bit_map_string_get()
54 		offset = t->first_free;  in bit_map_string_get()
56 		offset = t->last_off & ~align1;  in bit_map_string_get()
59 		off_new = find_next_zero_bit(t->map, t->size, offset);  in bit_map_string_get()
63 		if (offset >= t->size)  in bit_map_string_get()
65 		if (count + len > t->size) {  in bit_map_string_get()
66 			spin_unlock(&t->lock);  in bit_map_string_get()
69   t->size, t->used, offset, len, align, count);  in bit_map_string_get()
73 		if (offset + len > t->size) {  in bit_map_string_get()
74 			count += t->size - offset;  in bit_map_string_get()
80 		while (test_bit(offset + i, t->map) == 0) {  in bit_map_string_get()
83 				bitmap_set(t->map, offset, len);  in bit_map_string_get()
84 				if (offset == t->first_free)  in bit_map_string_get()
85 					t->first_free = find_next_zero_bit  in bit_map_string_get()
86 							(t->map, t->size,  in bit_map_string_get()
87 							 t->first_free + len);  in bit_map_string_get()
88 				if ((t->last_off = offset + len) >= t->size)  in bit_map_string_get()
89 					t->last_off = 0;  in bit_map_string_get()
90 				t->used += len;  in bit_map_string_get()
91 				t->last_size = len;  in bit_map_string_get()
92 				spin_unlock(&t->lock);  in bit_map_string_get()
97 		if ((offset += i + 1) >= t->size)  in bit_map_string_get()
102 void bit_map_clear(struct bit_map *t, int offset, int len)  in bit_map_clear()  argument
106 	if (t->used < len)  in bit_map_clear()
108 	spin_lock(&t->lock);  in bit_map_clear()
110 		if (test_bit(offset + i, t->map) == 0)  in bit_map_clear()
112 		__clear_bit(offset + i, t->map);  in bit_map_clear()
114 	if (offset < t->first_free)  in bit_map_clear()
115 		t->first_free = offset;  in bit_map_clear()
116 	t->used -= len;  in bit_map_clear()
117 	spin_unlock(&t->lock);  in bit_map_clear()
120 void bit_map_init(struct bit_map *t, unsigned long *map, int size)  in bit_map_init()  argument
127 	memset(t, 0, sizeof *t);  in bit_map_init()
128 	spin_lock_init(&t->lock);  in bit_map_init()
129 	t->map = map;  in bit_map_init()
130 	t->size = size;  in bit_map_init()