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| author | Kemeng Shi <shikemeng@huaweicloud.com> | 2023-08-01 17:31:58 +0300 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2023-08-03 17:47:30 +0300 |
| commit | bb60caa2db6697c20a0842b5b3c192aa1800da1a (patch) | |
| tree | aaf7a0efed2a24e8b397083670ce927debf6d0d1 /fs/ext4 | |
| parent | 919eb90cec4049cecf4a9f996afb0f14e3864fca (diff) | |
| download | linux-bb60caa2db6697c20a0842b5b3c192aa1800da1a.tar.xz | |
ext4: use is_power_of_2 helper in ext4_mb_regular_allocator
Use intuitive is_power_of_2 helper in ext4_mb_regular_allocator.
Signed-off-by: Kemeng Shi <shikemeng@huaweicloud.com>
Reviewed-by: Ritesh Harjani (IBM) <ritesh.list@gmail.com>
Link: https://lore.kernel.org/r/20230801143204.2284343-5-shikemeng@huaweicloud.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs/ext4')
| -rw-r--r-- | fs/ext4/mballoc.c | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c index 880b9731edaa..3dd2609ea133 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)); } |