From: Naresh Kamboju <naresh.kamboju@linaro.org>
To: Roman Gushchin <guro@fb.com>
Cc: linux-mips@vger.kernel.org,
Andrew Morton <akpm@linux-foundation.org>,
Christoph Lameter <cl@linux.com>,
Johannes Weiner <hannes@cmpxchg.org>,
Michal Hocko <mhocko@kernel.org>,
Shakeel Butt <shakeelb@google.com>,
linux-mm <linux-mm@kvack.org>, Vlastimil Babka <vbabka@suse.cz>,
Kernel Team <kernel-team@fb.com>,
open list <linux-kernel@vger.kernel.org>,
lkft-triage@lists.linaro.org
Subject: Re: [PATCH v7 08/19] mm: memcg/slab: save obj_cgroup for non-root slab objects
Date: Fri, 17 Jul 2020 11:04:13 +0530 [thread overview]
Message-ID: <CA+G9fYsvkrVJE-Aiqrkv0UG5fBWrNQ-fEvLeDgEtL5htr3m9wg@mail.gmail.com> (raw)
In-Reply-To: <20200716200744.GB13387@carbon.dhcp.thefacebook.com>
On Fri, 17 Jul 2020 at 01:38, Roman Gushchin <guro@fb.com> wrote:
>
> On Thu, Jul 16, 2020 at 10:25:01PM +0530, Naresh Kamboju wrote:
> > On Tue, 23 Jun 2020 at 23:11, Roman Gushchin <guro@fb.com> wrote:
> > >
> > > Store the obj_cgroup pointer in the corresponding place of
> > > page->obj_cgroups for each allocated non-root slab object. Make sure that
> > > each allocated object holds a reference to obj_cgroup.
> > >
> > > Objcg pointer is obtained from the memcg->objcg dereferencing in
> > > memcg_kmem_get_cache() and passed from pre_alloc_hook to post_alloc_hook.
> > > Then in case of successful allocation(s) it's getting stored in the
> > > page->obj_cgroups vector.
> > >
> > > The objcg obtaining part look a bit bulky now, but it will be simplified
> > > by next commits in the series.
> > >
> > > Signed-off-by: Roman Gushchin <guro@fb.com>
> > > Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
> > > Reviewed-by: Shakeel Butt <shakeelb@google.com>
> > > ---
> > > include/linux/memcontrol.h | 3 +-
> > > mm/memcontrol.c | 14 +++++++--
> > > mm/slab.c | 18 +++++++-----
> > > mm/slab.h | 60 ++++++++++++++++++++++++++++++++++----
> > > mm/slub.c | 14 +++++----
> > > 5 files changed, 88 insertions(+), 21 deletions(-)
> > >
> >
> > I am not sure if this is the related patch or not that is causing
> > mips architecture build failure on linux -next.
>
> Hello, Naresh!
>
> Thank you for the report, interesting...
> There is nothing arch-specific in the code, so there must be something
> compiler-dependent. My wild guess is that the problem is caused by a memory
> allocation from the memcg_slab_post_alloc_hook(), but it's added by a later
> patch in the series. So if it really fails at this patch, there must be something
> different. I'll try to reproduce it, but I have to install the MIPS toolchain first,
> so it might take some time. If it creates some troubles, can you, please, check
> if s/__always_inline/inline helps?
sed -i -e 's#__always_inline#inline#g' mm/slub.c ->> then builds fine.
- Naresh
next prev parent reply other threads:[~2020-07-17 8:49 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-23 17:40 [PATCH v7 00/19] The new cgroup slab memory controller Roman Gushchin
2020-06-23 17:40 ` [PATCH v7 01/19] mm: memcg: factor out memcg- and lruvec-level changes out of __mod_lruvec_state() Roman Gushchin
2020-06-23 17:40 ` [PATCH v7 02/19] mm: memcg: prepare for byte-sized vmstat items Roman Gushchin
2020-06-23 17:40 ` [PATCH v7 03/19] mm: memcg: convert vmstat slab counters to bytes Roman Gushchin
2020-06-23 17:40 ` [PATCH v7 04/19] mm: slub: implement SLUB version of obj_to_index() Roman Gushchin
2020-06-23 17:40 ` [PATCH v7 05/19] mm: memcontrol: decouple reference counting from page accounting Roman Gushchin
2020-08-03 9:00 ` Michal Hocko
2020-08-03 15:03 ` Johannes Weiner
2020-08-03 15:08 ` Michal Hocko
2020-06-23 17:40 ` [PATCH v7 06/19] mm: memcg/slab: obj_cgroup API Roman Gushchin
2020-06-23 17:40 ` [PATCH v7 07/19] mm: memcg/slab: allocate obj_cgroups for non-root slab pages Roman Gushchin
2020-06-23 17:40 ` [PATCH v7 08/19] mm: memcg/slab: save obj_cgroup for non-root slab objects Roman Gushchin
2020-07-16 16:55 ` Naresh Kamboju
2020-07-16 20:07 ` Roman Gushchin
2020-07-17 5:34 ` Naresh Kamboju [this message]
2020-06-23 17:40 ` [PATCH v7 10/19] mm: memcg/slab: deprecate memory.kmem.slabinfo Roman Gushchin
2020-06-24 1:43 ` Shakeel Butt
2020-06-24 1:53 ` Roman Gushchin
2020-06-23 17:40 ` [PATCH v7 11/19] mm: memcg/slab: move memcg_kmem_bypass() to memcontrol.h Roman Gushchin
2020-06-23 17:40 ` [PATCH v7 12/19] mm: memcg/slab: use a single set of kmem_caches for all accounted allocations Roman Gushchin
2020-06-23 17:40 ` [PATCH v7 13/19] mm: memcg/slab: simplify memcg cache creation Roman Gushchin
2020-06-23 17:40 ` [PATCH v7 14/19] mm: memcg/slab: remove memcg_kmem_get_cache() Roman Gushchin
2020-06-23 17:40 ` [PATCH v7 15/19] mm: memcg/slab: deprecate slab_root_caches Roman Gushchin
2020-06-23 17:40 ` [PATCH v7 16/19] mm: memcg/slab: remove redundant check in memcg_accumulate_slabinfo() Roman Gushchin
2020-06-23 17:40 ` [PATCH v7 17/19] mm: memcg/slab: use a single set of kmem_caches for all allocations Roman Gushchin
2020-07-18 17:24 ` Guenter Roeck
2020-07-18 23:03 ` Roman Gushchin
-- strict thread matches above, loose matches on Subject: below --
2020-06-23 1:58 [PATCH v7 00/19] The new cgroup slab memory controller Roman Gushchin
2020-06-23 1:58 ` [PATCH v7 08/19] mm: memcg/slab: save obj_cgroup for non-root slab objects Roman Gushchin
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=CA+G9fYsvkrVJE-Aiqrkv0UG5fBWrNQ-fEvLeDgEtL5htr3m9wg@mail.gmail.com \
--to=naresh.kamboju@linaro.org \
--cc=akpm@linux-foundation.org \
--cc=cl@linux.com \
--cc=guro@fb.com \
--cc=hannes@cmpxchg.org \
--cc=kernel-team@fb.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mips@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=lkft-triage@lists.linaro.org \
--cc=mhocko@kernel.org \
--cc=shakeelb@google.com \
--cc=vbabka@suse.cz \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).