Re: [PATCH v2 0/5] Fix bugs in memcontroller cgroup tests

David Vernet
2022-05-12T17:30:18Z

Hi Michal,

On Thu, May 12, 2022 at 07:04:10PM +0200, Michal Koutný wrote:
> Are the Roman's patches merged anywhere? (I ran into some issues when I
> was rebasing your (David's) series on top of master.) I'd like to put
> all sensible patches in one series or stack on existing branch (if
> there's any).

Roman's patches are present on master on the linux-mm tree. See
b7dbfd6553d..a131b1ed12c6.

> For possible v3 of this series, I did:
> - dropped the patch that allows non-zero memory.events:low for a sibling with
> memory.low=0 when mounted with memory_recursiveprot (the case needs more
> discussion),

Ack, and thanks for keeping us steered in the right direction here. I don't
see this in the patch set you linked, but I agree this commit should be
reverted and the reclaim logic instead fixed.

> - added few more cleanups, convenience for debugging,

Are you referring to the FAIL() macro you added? I would love to Ack that,
but unfortunately checkpatch.pl will probably yell at you for having a goto
in that macro, per the point about avoiding macros that affect control flow
[0].

I tried to do the same thing when sending out my patch set and had to
revert it before sending it to upstream.

Thanks,
David

[0] https://github.com/Werkov/linux/commit/a076339cc4825af2f22f58c1347a572b104b8221