resize.c (404c3bc30cb1361e1b3533643326ab472d24a618) resize.c (952fc18ef9ec707ebdc16c0786ec360295e5ff15)
1/*
2 * linux/fs/ext4/resize.c
3 *
4 * Support for resizing an ext4 filesystem while it is mounted.
5 *
6 * Copyright (C) 2001, 2002 Andreas Dilger <adilger@clusterfs.com>
7 *
8 * This could probably be made into a module, because it is not often in use.

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1192 struct ext4_new_flex_group_data *flex_gd)
1193{
1194 ext4_fsblk_t blocks_count = 0;
1195 ext4_fsblk_t free_blocks = 0;
1196 ext4_fsblk_t reserved_blocks = 0;
1197 struct ext4_new_group_data *group_data = flex_gd->groups;
1198 struct ext4_sb_info *sbi = EXT4_SB(sb);
1199 struct ext4_super_block *es = sbi->s_es;
1/*
2 * linux/fs/ext4/resize.c
3 *
4 * Support for resizing an ext4 filesystem while it is mounted.
5 *
6 * Copyright (C) 2001, 2002 Andreas Dilger <adilger@clusterfs.com>
7 *
8 * This could probably be made into a module, because it is not often in use.

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1192 struct ext4_new_flex_group_data *flex_gd)
1193{
1194 ext4_fsblk_t blocks_count = 0;
1195 ext4_fsblk_t free_blocks = 0;
1196 ext4_fsblk_t reserved_blocks = 0;
1197 struct ext4_new_group_data *group_data = flex_gd->groups;
1198 struct ext4_sb_info *sbi = EXT4_SB(sb);
1199 struct ext4_super_block *es = sbi->s_es;
1200 int i;
1200 int i, ret;
1201
1202 BUG_ON(flex_gd->count == 0 || group_data == NULL);
1203 /*
1204 * Make the new blocks and inodes valid next. We do this before
1205 * increasing the group count so that once the group is enabled,
1206 * all of its blocks and inodes are already valid.
1207 *
1208 * We always allocate group-by-group, then block-by-block or

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1267 ext4_group_t flex_group;
1268 flex_group = ext4_flex_group(sbi, group_data[0].group);
1269 atomic_add(EXT4_B2C(sbi, free_blocks),
1270 &sbi->s_flex_groups[flex_group].free_clusters);
1271 atomic_add(EXT4_INODES_PER_GROUP(sb) * flex_gd->count,
1272 &sbi->s_flex_groups[flex_group].free_inodes);
1273 }
1274
1201
1202 BUG_ON(flex_gd->count == 0 || group_data == NULL);
1203 /*
1204 * Make the new blocks and inodes valid next. We do this before
1205 * increasing the group count so that once the group is enabled,
1206 * all of its blocks and inodes are already valid.
1207 *
1208 * We always allocate group-by-group, then block-by-block or

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1267 ext4_group_t flex_group;
1268 flex_group = ext4_flex_group(sbi, group_data[0].group);
1269 atomic_add(EXT4_B2C(sbi, free_blocks),
1270 &sbi->s_flex_groups[flex_group].free_clusters);
1271 atomic_add(EXT4_INODES_PER_GROUP(sb) * flex_gd->count,
1272 &sbi->s_flex_groups[flex_group].free_inodes);
1273 }
1274
1275 /*
1276 * Update the fs overhead information
1277 */
1278 ext4_calculate_overhead(sb);
1279
1275 if (test_opt(sb, DEBUG))
1276 printk(KERN_DEBUG "EXT4-fs: added group %u:"
1277 "%llu blocks(%llu free %llu reserved)\n", flex_gd->count,
1278 blocks_count, free_blocks, reserved_blocks);
1279}
1280
1281/* Add a flex group to an fs. Ensure we handle all possible error conditions
1282 * _before_ we start modifying the filesystem, because we cannot abort the

--- 460 unchanged lines hidden --- 		1280 if (test_opt(sb, DEBUG))
1281 printk(KERN_DEBUG "EXT4-fs: added group %u:"
1282 "%llu blocks(%llu free %llu reserved)\n", flex_gd->count,
1283 blocks_count, free_blocks, reserved_blocks);
1284}
1285
1286/* Add a flex group to an fs. Ensure we handle all possible error conditions
1287 * _before_ we start modifying the filesystem, because we cannot abort the

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