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From: Minchan Kim <minchan@kernel.org>
To: Florian Weimer <fw@deneb.enyo.de>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	LKML <linux-kernel@vger.kernel.org>,
	Christian Brauner <christian.brauner@ubuntu.com>,
	linux-mm <linux-mm@kvack.org>,
	linux-api@vger.kernel.org, oleksandr@redhat.com,
	Suren Baghdasaryan <surenb@google.com>,
	Tim Murray <timmurray@google.com>,
	Sandeep Patil <sspatil@google.com>,
	Sonny Rao <sonnyrao@google.com>,
	Brian Geffon <bgeffon@google.com>, Michal Hocko <mhocko@suse.com>,
	Johannes Weiner <hannes@cmpxchg.org>,
	Shakeel Butt <shakeelb@google.com>,
	John Dias <joaodias@google.com>,
	Joel Fernandes <joel@joelfernandes.org>,
	Jann Horn <jannh@google.com>,
	alexander.h.duyck@linux.intel.com, sj38.park@gmail.com,
	David Rientjes <rientjes@google.com>,
	Arjun Roy <arjunroy@google.com>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Vlastimil Babka <vbabka@suse.cz>,
	Christian Brauner <christian@brauner.io>,
	Daniel Colascione <dancol@google.com>,
	Jens Axboe <axboe@kernel.dk>, Kirill Tkhai <ktkhai@virtuozzo.com>,
	SeongJae Park <sjpark@amazon.de>,
	linux-man@vger.kernel.org
Subject: Re: [PATCH v9 3/3] mm/madvise: introduce process_madvise() syscall: an external memory hinting API
Date: Thu, 3 Sep 2020 10:26:18 -0700	[thread overview]
Message-ID: <20200903172618.GB1959033@google.com> (raw)
In-Reply-To: <87blippc7p.fsf@mid.deneb.enyo.de>

On Tue, Sep 01, 2020 at 08:46:02PM +0200, Florian Weimer wrote:
> * Minchan Kim:
> 
> >       ssize_t process_madvise(int pidfd, const struct iovec *iovec,
> >                 unsigned long vlen, int advice, unsigned int flags);
> 
> size_t for vlen provides a clearer hint regarding the type of special
> treatment needed for ILP32 here (zero extension, not changing the type
> to long long).
> 

All existing system calls using iove in Linux uses unsigned long so
I want to be consistent with them unless process_madvise need something
speicial.

  reply	other threads:[~2020-09-03 17:26 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-01  0:06 [PATCH v9 0/3] introduce memory hinting API for external process Minchan Kim
2020-09-01  0:06 ` [PATCH v9 1/3] mm/madvise: pass mm to do_madvise Minchan Kim
2020-09-01  0:06 ` [PATCH v9 2/3] pid: move pidfd_get_pid() to pid.c Minchan Kim
2020-09-01  0:06 ` [PATCH v9 3/3] mm/madvise: introduce process_madvise() syscall: an external memory hinting API Minchan Kim
2020-09-01 18:46   ` Florian Weimer
2020-09-03 17:26     ` Minchan Kim [this message]
2020-09-03 17:34       ` Florian Weimer
2020-09-03 17:59         ` Minchan Kim
2020-09-04  9:36           ` Christian Brauner
2020-09-21  6:56   ` Christoph Hellwig
2020-09-21  7:14     ` Michal Hocko
2020-09-21 17:55     ` Minchan Kim
2020-11-16  9:02       ` Eric Dumazet
2020-11-16 15:51         ` Minchan Kim
2020-11-17 20:06           ` Linus Torvalds
2020-11-17 20:31             ` Minchan Kim

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