ould check for need init flag with the group's alloc_sem held, to make sure while we are loading the buddy cache and holding a reference to it, a file system resize can't add new blocks to same group. The patch also drops the need init flag check in ext4_mb_regular_allocator() because doing the check without holding alloc_sem is racy. Signed-off-by: "Theodore Ts'o" Signed-off-by: Aneesh Kumar K.V \¹øÍ›