Lines Matching refs:fs
36 static blk_t flexbg_offset(ext2_filsys fs, dgrp_t group, blk_t start_blk,
44 flexbg_size = 1 << fs->super->s_log_groups_per_flex;
47 if (size > (int) (fs->super->s_blocks_per_group / 8))
48 size = (int) fs->super->s_blocks_per_group / 8;
63 start_blk = ext2fs_group_first_block(fs, flexbg_size * flexbg);
65 if (last_grp > fs->group_desc_count)
66 last_grp = fs->group_desc_count;
67 last_blk = ext2fs_group_last_block(fs, last_grp);
70 if (ext2fs_get_free_blocks(fs, start_blk, last_blk, 1, bmap,
74 if (ext2fs_get_free_blocks(fs, first_free + offset, last_blk, size,
81 errcode_t ext2fs_allocate_group_table(ext2_filsys fs, dgrp_t group,
89 group_blk = ext2fs_group_first_block(fs, group);
90 last_blk = ext2fs_group_last_block(fs, group);
93 bmap = fs->block_map;
95 if (EXT2_HAS_INCOMPAT_FEATURE(fs->super,
97 fs->super->s_log_groups_per_flex) {
98 flexbg_size = 1 << fs->super->s_log_groups_per_flex;
101 if (last_grp > fs->group_desc_count)
102 last_grp = fs->group_desc_count;
108 if (fs->stride) {
109 retval = ext2fs_get_free_blocks(fs, group_blk, last_blk,
113 start_blk += fs->inode_blocks_per_group;
114 start_blk += ((fs->stride * group) %
123 if (group && fs->group_desc[group-1].bg_block_bitmap)
124 prev_block = fs->group_desc[group-1].bg_block_bitmap;
125 start_blk = flexbg_offset(fs, group, prev_block, bmap,
127 last_blk = ext2fs_group_last_block(fs, last_grp);
130 if (!fs->group_desc[group].bg_block_bitmap) {
131 retval = ext2fs_get_free_blocks(fs, start_blk, last_blk,
134 retval = ext2fs_get_free_blocks(fs, group_blk,
139 fs->group_desc[group].bg_block_bitmap = new_blk;
141 dgrp_t gr = ext2fs_group_of_blk(fs, new_blk);
142 fs->group_desc[gr].bg_free_blocks_count--;
143 fs->super->s_free_blocks_count--;
144 fs->group_desc[gr].bg_flags &= ~EXT2_BG_BLOCK_UNINIT;
145 ext2fs_group_desc_csum_set(fs, gr);
151 if (group && fs->group_desc[group-1].bg_inode_bitmap)
152 prev_block = fs->group_desc[group-1].bg_inode_bitmap;
153 start_blk = flexbg_offset(fs, group, prev_block, bmap,
155 last_blk = ext2fs_group_last_block(fs, last_grp);
158 if (!fs->group_desc[group].bg_inode_bitmap) {
159 retval = ext2fs_get_free_blocks(fs, start_blk, last_blk,
162 retval = ext2fs_get_free_blocks(fs, group_blk,
167 fs->group_desc[group].bg_inode_bitmap = new_blk;
169 dgrp_t gr = ext2fs_group_of_blk(fs, new_blk);
170 fs->group_desc[gr].bg_free_blocks_count--;
171 fs->super->s_free_blocks_count--;
172 fs->group_desc[gr].bg_flags &= ~EXT2_BG_BLOCK_UNINIT;
173 ext2fs_group_desc_csum_set(fs, gr);
182 if (group && fs->group_desc[group-1].bg_inode_table)
183 prev_block = fs->group_desc[group-1].bg_inode_table;
184 if (last_grp == fs->group_desc_count)
186 group_blk = flexbg_offset(fs, group, prev_block, bmap,
188 fs->inode_blocks_per_group *
190 fs->inode_blocks_per_group);
191 last_blk = ext2fs_group_last_block(fs, last_grp);
194 if (!fs->group_desc[group].bg_inode_table) {
195 retval = ext2fs_get_free_blocks(fs, group_blk, last_blk,
196 fs->inode_blocks_per_group,
201 j < fs->inode_blocks_per_group;
205 dgrp_t gr = ext2fs_group_of_blk(fs, blk);
206 fs->group_desc[gr].bg_free_blocks_count--;
207 fs->super->s_free_blocks_count--;
208 fs->group_desc[gr].bg_flags &= ~EXT2_BG_BLOCK_UNINIT;
209 ext2fs_group_desc_csum_set(fs, gr);
212 fs->group_desc[group].bg_inode_table = new_blk;
214 ext2fs_group_desc_csum_set(fs, group);
218 errcode_t ext2fs_allocate_tables(ext2_filsys fs)
223 for (i = 0; i < fs->group_desc_count; i++) {
224 retval = ext2fs_allocate_group_table(fs, i, fs->block_map);
