Lines Matching refs:sb
27 sb->sv_sbd2->s_tfree = *sb->sv_free_blocks
30 static inline u32 *get_chunk(struct super_block *sb, struct buffer_head *bh)
34 if (sb->sv_type == FSTYPE_SYSV4)
42 void sysv_free_block(struct super_block * sb, u32 nr)
45 u32 *blocks = sb->sv_bcache;
47 unsigned block = fs32_to_cpu(sb, nr);
54 if (sb->sv_type == FSTYPE_AFS)
57 if (block < sb->sv_firstdatazone || block >= sb->sv_nzones) {
62 lock_super(sb);
63 count = fs16_to_cpu(sb, *sb->sv_bcache_count);
65 if (count > sb->sv_flc_size) {
67 unlock_super(sb);
74 if (count == sb->sv_flc_size || count == 0) {
75 block += sb->sv_block_base;
76 bh = sb_getblk(sb, block);
79 unlock_super(sb);
82 memset(bh->b_data, 0, sb->s_blocksize);
83 *(u16*)bh->b_data = cpu_to_fs16(sb, count);
84 memcpy(get_chunk(sb,bh), blocks, count * sizeof(sysv_zone_t));
90 sb->sv_bcache[count++] = nr;
92 *sb->sv_bcache_count = cpu_to_fs16(sb, count);
93 fs32_add(sb, sb->sv_free_blocks, 1);
94 dirty_sb(sb);
95 unlock_super(sb);
98 u32 sysv_new_block(struct super_block * sb)
105 lock_super(sb);
106 count = fs16_to_cpu(sb, *sb->sv_bcache_count);
110 nr = sb->sv_bcache[--count];
114 block = fs32_to_cpu(sb, nr);
116 *sb->sv_bcache_count = cpu_to_fs16(sb, count);
118 if (block < sb->sv_firstdatazone || block >= sb->sv_nzones) {
127 block += sb->sv_block_base;
128 if (!(bh = sb_bread(sb, block))) {
131 *sb->sv_bcache_count = cpu_to_fs16(sb, 1);
134 count = fs16_to_cpu(sb, *(u16*)bh->b_data);
135 if (count > sb->sv_flc_size) {
140 *sb->sv_bcache_count = cpu_to_fs16(sb, count);
141 memcpy(sb->sv_bcache, get_chunk(sb, bh),
146 fs32_add(sb, sb->sv_free_blocks, -1);
147 dirty_sb(sb);
148 unlock_super(sb);
152 unlock_super(sb);
156 unsigned long sysv_count_free_blocks(struct super_block * sb)
170 if (sb->sv_type == FSTYPE_AFS)
173 lock_super(sb);
174 sb_count = fs32_to_cpu(sb, *sb->sv_free_blocks);
181 n = fs16_to_cpu(sb, *sb->sv_bcache_count);
182 blocks = sb->sv_bcache;
184 if (n > sb->sv_flc_size)
192 block = fs32_to_cpu(sb, block);
196 if (block < sb->sv_firstdatazone || block >= sb->sv_nzones)
198 block += sb->sv_block_base;
199 bh = sb_bread(sb, block);
202 n = fs16_to_cpu(sb, *(u16*)bh->b_data);
203 blocks = get_chunk(sb, bh);
210 unlock_super(sb);
230 if (!(sb->s_flags & MS_RDONLY)) {
231 *sb->sv_free_blocks = cpu_to_fs32(sb, count);
232 dirty_sb(sb);