static int mbt_mb_init(struct super_block *sb)
{
+ ext4_fsblk_t block;
int ret;
/* needed by ext4_mb_init->bdev_nonrot(sb->s_bdev) */
if (ret != 0)
goto err_out;
+ block = ext4_count_free_clusters(sb);
+ ret = percpu_counter_init(&EXT4_SB(sb)->s_freeclusters_counter, block,
+ GFP_KERNEL);
+ if (ret != 0)
+ goto err_mb_release;
+
+ ret = percpu_counter_init(&EXT4_SB(sb)->s_dirtyclusters_counter, 0,
+ GFP_KERNEL);
+ if (ret != 0)
+ goto err_freeclusters;
+
return 0;
+err_freeclusters:
+ percpu_counter_destroy(&EXT4_SB(sb)->s_freeclusters_counter);
+err_mb_release:
+ ext4_mb_release(sb);
err_out:
kfree(sb->s_bdev->bd_queue);
kfree(sb->s_bdev);
static void mbt_mb_release(struct super_block *sb)
{
+ percpu_counter_destroy(&EXT4_SB(sb)->s_dirtyclusters_counter);
+ percpu_counter_destroy(&EXT4_SB(sb)->s_freeclusters_counter);
ext4_mb_release(sb);
kfree(sb->s_bdev->bd_queue);
kfree(sb->s_bdev);
ext4_mb_mark_context,
ext4_mb_mark_context_stub);
- /* stub function will be called in mt_mb_init->ext4_mb_init */
+ /* stub function will be called in mbt_mb_init->ext4_mb_init */
if (mbt_mb_init(sb) != 0) {
mbt_ctx_release(sb);
mbt_ext4_free_super_block(sb);