Use intuitive is_power_of_2 helper in ext4_mb_regular_allocator.
Signed-off-by: Kemeng Shi <shikemeng@xxxxxxxxxxxxxxx>
Reviewed-by: Ritesh Harjani (IBM) <ritesh.list@xxxxxxxxx>
---
fs/ext4/mballoc.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 4cbbe930e010..acf8e3183e47 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -2799,10 +2799,7 @@ ext4_mb_regular_allocator(struct ext4_allocation_context *ac)
* requests upto maximum buddy size we have constructed.
*/
if (i >= sbi->s_mb_order2_reqs && i <= MB_NUM_ORDERS(sb)) {
- /*
- * This should tell if fe_len is exactly power of 2
- */
- if ((ac->ac_g_ex.fe_len & (~(1 << (i - 1)))) == 0)
+ if (is_power_of_2(ac->ac_g_ex.fe_len))
ac->ac_2order = array_index_nospec(i - 1,
MB_NUM_ORDERS(sb));
}
--
2.30.0
