mirror of https://lore.kernel.org/lkml/
 help / color / mirror / Atom feed
From: Johannes Weiner <hannes@cmpxchg.org>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Tejun Heo <tj@kernel.org>, Hugh Dickins <hughd@google.com>,
	Michel Lespinasse <walken@google.com>, Jan Kara <jack@suse.cz>,
	"Kirill A. Shutemov" <kirill@shutemov.name>,
	linux-mm@kvack.org, linux-fsdevel@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: [patch 0/3 resend] mm: close race between dirtying and truncation
Date: Tue, 16 Dec 2014 11:18:08 -0500	[thread overview]
Message-ID: <1418746691-326-1-git-send-email-hannes@cmpxchg.org> (raw)

Hi Andrew,

it looks like these 3 patches fell on the floor.  The first one is a
bug fix that closes a race condition between truncation and dirtying
from do_wp_page(), which can result in a dirty-accounting error.  #2
and #3 simplify the code in the area.  Please consider them for 3.19.

Thanks!

 include/linux/writeback.h |  1 -
 mm/memory.c               | 54 ++++++++++++++++++---------------------------
 mm/page-writeback.c       | 43 ++++++++++--------------------------
 3 files changed, 34 insertions(+), 64 deletions(-)


             reply	other threads:[~2014-12-16 16:18 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-12-16 16:18 Johannes Weiner [this message]
2014-12-16 16:18 ` [patch 1/3] mm: protect set_page_dirty() from ongoing truncation Johannes Weiner
2014-12-16 16:18 ` [patch 2/3] mm: memory: remove ->vm_file check on shared writable vmas Johannes Weiner
2014-12-16 16:18 ` [patch 3/3] mm: memory: merge shared-writable dirtying branches in do_wp_page() Johannes Weiner

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=1418746691-326-1-git-send-email-hannes@cmpxchg.org \
    --to=hannes@cmpxchg.org \
    --cc=akpm@linux-foundation.org \
    --cc=hughd@google.com \
    --cc=jack@suse.cz \
    --cc=kirill@shutemov.name \
    --cc=linux-fsdevel@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-mm@kvack.org \
    --cc=tj@kernel.org \
    --cc=walken@google.com \
    /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
all inboxes | Powered by JetHome®