Re: [PATCH 00/10] A few fixes and cleanups to mballoc

From: IBM
Date: Fri Jul 21 2023 - 11:56:22 EST


Kemeng Shi <shikemeng@xxxxxxxxxxxxxxx> writes:

> Hi all, this series contains some random fixes and cleanups to mballoc
> which include correct grp validation, fix data overflow and so on.
> More details can be found in respective patches.
> Besides, 'kvm-xfstest smoke' runs successfully without error.

Thanks Kemeng for the cleanup series. Looks good to me with few minor
nits which I have commented in individual patches.

Note that I couldn't cleanly apply the series on ted's dev branch
(Patch-05 gave some minor conflict). Maybe you might have based your
changes on top of linux master or something. Anyways it was just a minor
conflict and I don't know what is Ted's general preference here, but I
thought of doing an FYI -

-ritesh


>
> Thanks!
>
> Kemeng Shi (10):
> ext4: correct grp validation in ext4_mb_good_group
> ext4: avoid potential data overflow in next_linear_group
> ext4: return found group directly in
> ext4_mb_choose_next_group_p2_aligned
> ext4: use is_power_of_2 helper in ext4_mb_regular_allocator
> ext4: remove unnecessary return for void function
> ext4: replace the traditional ternary conditional operator with with
> max()/min()
> ext4: remove unused ext4_{set}/{clear}_bit_atomic
> ext4: return found group directly in
> ext4_mb_choose_next_group_goal_fast
> ext4: return found group directly in
> ext4_mb_choose_next_group_best_avail
> ext4: correct some stale comment of criteria
>
> fs/ext4/ext4.h | 2 --
> fs/ext4/mballoc.c | 85 ++++++++++++++++++-----------------------------
> 2 files changed, 32 insertions(+), 55 deletions(-)
>
> --
> 2.30.0