diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c index 383703e20ea3..a346ab8f3e5f 100644 --- a/fs/ext4/mballoc.c +++ b/fs/ext4/mballoc.c @@ -5887,7 +5887,7 @@ static ext4_fsblk_t ext4_mb_new_blocks_simple(handle_t *handle, struct buffer_head *bitmap_bh; struct super_block *sb = ar->inode->i_sb; struct ext4_sb_info *sbi = EXT4_SB(sb); - ext4_group_t group; + ext4_group_t group, nr; ext4_grpblk_t blkoff; ext4_grpblk_t max = EXT4_CLUSTERS_PER_GROUP(sb); ext4_grpblk_t i = 0; @@ -5901,7 +5901,7 @@ static ext4_fsblk_t ext4_mb_new_blocks_simple(handle_t *handle, ar->len = 0; ext4_get_group_no_and_offset(sb, goal, &group, &blkoff); - for (; group < ext4_get_groups_count(sb); group++) { + for (nr = ext4_get_groups_count(sb); nr > 0; nr--) { bitmap_bh = ext4_read_block_bitmap(sb, group); if (IS_ERR(bitmap_bh)) { *errp = PTR_ERR(bitmap_bh); @@ -5925,10 +5925,13 @@ static ext4_fsblk_t ext4_mb_new_blocks_simple(handle_t *handle, if (i < max) break; + if (++group >= ext4_get_groups_count(sb)) + group = 0; + blkoff = 0; } - if (group >= ext4_get_groups_count(sb) || i >= max) { + if (i >= max) { *errp = -ENOSPC; return 0; }