27 static int afs_find_contig_bits(union afs_xdr_dir_block *block, unsigned int nr_slots)  in afs_find_contig_bits()  argument
33 	bitmap  = (u64)block->hdr.bitmap[0] << 0 * 8;  in afs_find_contig_bits()
34 	bitmap |= (u64)block->hdr.bitmap[1] << 1 * 8;  in afs_find_contig_bits()
35 	bitmap |= (u64)block->hdr.bitmap[2] << 2 * 8;  in afs_find_contig_bits()
36 	bitmap |= (u64)block->hdr.bitmap[3] << 3 * 8;  in afs_find_contig_bits()
37 	bitmap |= (u64)block->hdr.bitmap[4] << 4 * 8;  in afs_find_contig_bits()
38 	bitmap |= (u64)block->hdr.bitmap[5] << 5 * 8;  in afs_find_contig_bits()
39 	bitmap |= (u64)block->hdr.bitmap[6] << 6 * 8;  in afs_find_contig_bits()
40 	bitmap |= (u64)block->hdr.bitmap[7] << 7 * 8;  in afs_find_contig_bits()
72 static void afs_set_contig_bits(union afs_xdr_dir_block *block,  in afs_set_contig_bits()  argument
80 	before = *(u64 *)block->hdr.bitmap;  in afs_set_contig_bits()
82 	block->hdr.bitmap[0] |= (u8)(mask >> 0 * 8);  in afs_set_contig_bits()
83 	block->hdr.bitmap[1] |= (u8)(mask >> 1 * 8);  in afs_set_contig_bits()
84 	block->hdr.bitmap[2] |= (u8)(mask >> 2 * 8);  in afs_set_contig_bits()
85 	block->hdr.bitmap[3] |= (u8)(mask >> 3 * 8);  in afs_set_contig_bits()
86 	block->hdr.bitmap[4] |= (u8)(mask >> 4 * 8);  in afs_set_contig_bits()
87 	block->hdr.bitmap[5] |= (u8)(mask >> 5 * 8);  in afs_set_contig_bits()
88 	block->hdr.bitmap[6] |= (u8)(mask >> 6 * 8);  in afs_set_contig_bits()
89 	block->hdr.bitmap[7] |= (u8)(mask >> 7 * 8);  in afs_set_contig_bits()
91 	after = *(u64 *)block->hdr.bitmap;  in afs_set_contig_bits()
97 static void afs_clear_contig_bits(union afs_xdr_dir_block *block,  in afs_clear_contig_bits()  argument
105 	before = *(u64 *)block->hdr.bitmap;  in afs_clear_contig_bits()
107 	block->hdr.bitmap[0] &= ~(u8)(mask >> 0 * 8);  in afs_clear_contig_bits()
108 	block->hdr.bitmap[1] &= ~(u8)(mask >> 1 * 8);  in afs_clear_contig_bits()
109 	block->hdr.bitmap[2] &= ~(u8)(mask >> 2 * 8);  in afs_clear_contig_bits()
110 	block->hdr.bitmap[3] &= ~(u8)(mask >> 3 * 8);  in afs_clear_contig_bits()
111 	block->hdr.bitmap[4] &= ~(u8)(mask >> 4 * 8);  in afs_clear_contig_bits()
112 	block->hdr.bitmap[5] &= ~(u8)(mask >> 5 * 8);  in afs_clear_contig_bits()
113 	block->hdr.bitmap[6] &= ~(u8)(mask >> 6 * 8);  in afs_clear_contig_bits()
114 	block->hdr.bitmap[7] &= ~(u8)(mask >> 7 * 8);  in afs_clear_contig_bits()
116 	after = *(u64 *)block->hdr.bitmap;  in afs_clear_contig_bits()
122 static int afs_dir_scan_block(union afs_xdr_dir_block *block, struct qstr *name,  in afs_dir_scan_block()  argument
131 	bitmap  = (u64)block->hdr.bitmap[0] << 0 * 8;  in afs_dir_scan_block()
132 	bitmap |= (u64)block->hdr.bitmap[1] << 1 * 8;  in afs_dir_scan_block()
133 	bitmap |= (u64)block->hdr.bitmap[2] << 2 * 8;  in afs_dir_scan_block()
134 	bitmap |= (u64)block->hdr.bitmap[3] << 3 * 8;  in afs_dir_scan_block()
135 	bitmap |= (u64)block->hdr.bitmap[4] << 4 * 8;  in afs_dir_scan_block()
136 	bitmap |= (u64)block->hdr.bitmap[5] << 5 * 8;  in afs_dir_scan_block()
137 	bitmap |= (u64)block->hdr.bitmap[6] << 6 * 8;  in afs_dir_scan_block()
138 	bitmap |= (u64)block->hdr.bitmap[7] << 7 * 8;  in afs_dir_scan_block()
145 		de = &block->dirents[d];  in afs_dir_scan_block()
168 				union afs_xdr_dir_block *block, int block_num)  in afs_edit_init_block()  argument
170 	memset(block, 0, sizeof(*block));  in afs_edit_init_block()
171 	block->hdr.npages = htons(1);  in afs_edit_init_block()
172 	block->hdr.magic = AFS_DIR_MAGIC;  in afs_edit_init_block()
173 	block->hdr.bitmap[0] = 1;  in afs_edit_init_block()
176 		block->hdr.bitmap[0] = 0xff;  in afs_edit_init_block()
177 		block->hdr.bitmap[1] = 0x1f;  in afs_edit_init_block()
178 		memset(block->meta.alloc_ctrs,  in afs_edit_init_block()
180 		       sizeof(block->meta.alloc_ctrs));  in afs_edit_init_block()
202 	union afs_xdr_dir_block *meta, *block;  in afs_edit_dir_add()  local
269 		block = &dir_page->blocks[b % AFS_DIR_BLOCKS_PER_PAGE];  in afs_edit_dir_add()
274 		       ntohs(block->hdr.npages),  in afs_edit_dir_add()
275 		       ntohs(block->hdr.magic));  in afs_edit_dir_add()
280 			afs_edit_init_block(meta, block, b);  in afs_edit_dir_add()
290 			slot = afs_find_contig_bits(block, need_slots);  in afs_edit_dir_add()
317 	block = meta;  in afs_edit_dir_add()
325 	de = &block->dirents[slot];  in afs_edit_dir_add()
335 	afs_set_contig_bits(block, slot, need_slots);  in afs_edit_dir_add()
383 	union afs_xdr_dir_block *meta, *block;  in afs_edit_dir_remove()  local
435 		block = &dir_page->blocks[b % AFS_DIR_BLOCKS_PER_PAGE];  in afs_edit_dir_remove()
439 			slot = afs_dir_scan_block(block, name, b);  in afs_edit_dir_remove()
458 	de = &block->dirents[slot];  in afs_edit_dir_remove()
467 	afs_clear_contig_bits(block, slot, need_slots);  in afs_edit_dir_remove()