From: Andrew Morton <akpm@linux-foundation.org>
To: Pasha Tatashin <pasha.tatashin@soleen.com>
Cc: Shakeel Butt <shakeel.butt@linux.dev>,
jpoimboe@kernel.org, kent.overstreet@linux.dev,
peterz@infradead.org, nphamcs@gmail.com,
cerasuolodomenico@gmail.com, surenb@google.com,
lizhijian@fujitsu.com, willy@infradead.org, vbabka@suse.cz,
ziy@nvidia.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [PATCH v4] vmstat: Kernel stack usage histogram
Date: Tue, 23 Jul 2024 17:10:01 -0700 [thread overview]
Message-ID: <20240723171001.b06f0a8053efaa7ec40e400e@linux-foundation.org> (raw)
In-Reply-To: <CA+CK2bB4RELLHExbkL444ArTtUnqiYVYKJ1rLQGarLyenY6WxQ@mail.gmail.com>
On Thu, 18 Jul 2024 22:55:17 -0400 Pasha Tatashin <pasha.tatashin@soleen.com> wrote:
> >
> > > +{
> > > + if (used_stack <= 1024)
> > > + this_cpu_inc(vm_event_states.event[KSTACK_1K]);
> >
> > Why not count_vm_event(KSTACK_1K)? Avoiding header include recursion?
>
> I could not include "linux/vmstat.h" into "linux/sched/task_stack.h"
> because it introduces some dependencies such linux/mm.h and
> linux/fs.h, uapi/linux/stat.h, and when all of those are added it
> still fails to compile on some architectures, so it was just simpler
> to stop resolving the conflicts and use this_cpu_inc() directly.
Presumably uninlining stack_not_used() will permit this
to be cleaned up.
next prev parent reply other threads:[~2024-07-24 0:10 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-07-18 20:26 Pasha Tatashin
2024-07-18 21:44 ` Kent Overstreet
2024-07-18 23:36 ` Shakeel Butt
2024-07-19 2:55 ` Pasha Tatashin
2024-07-19 22:04 ` Shakeel Butt
2024-07-24 0:09 ` Andrew Morton
2024-07-24 0:10 ` Andrew Morton [this message]
2024-07-24 6:46 ` Andrew Morton
2024-07-24 14:43 ` Pasha Tatashin
2024-07-24 16:59 ` Shakeel Butt
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