Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1502417

Re: [PATCH] aio: fix a use after free (and fix freeze protection of aio writes)

From Christoph Hellwig <hch@lst.de>
Newsgroups linux.kernel
Subject Re: [PATCH] aio: fix a use after free (and fix freeze protection of aio writes)
Date 2016-10-17 22:10 +0200
Message-ID <stmop-8jb-15@gated-at.bofh.it> (permalink)
References (1 earlier) <stkPD-7cX-19@gated-at.bofh.it> <stliG-7os-27@gated-at.bofh.it> <stm54-7V9-37@gated-at.bofh.it> <stmeK-7YZ-19@gated-at.bofh.it> <stmop-8jb-17@gated-at.bofh.it>
Organization linux.* mail to news gateway

Show all headers | View raw

On Mon, Oct 17, 2016 at 04:04:00PM -0400, Jeff Moyer wrote:
> >> Could we just change percpu_rw_semaphore->read_count to be a signed
> >> integer?  The down_write path sums up the counters from all cpus...
> >
> > To what point?
> 
> Duh, nevermind.  You're right, it should work as-is.

Ok, thanks.  That also explains why I didn't see any splat in
xfstests..

Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

[PATCH] aio: fix a use after free (and fix freeze protection of aio writes) Christoph Hellwig <hch@lst.de> - 2016-10-16 08:00 +0200
  Re: [PATCH] aio: fix a use after free (and fix freeze protection of aio writes) Jeff Moyer <jmoyer@redhat.com> - 2016-10-17 20:30 +0200
    Re: [PATCH] aio: fix a use after free (and fix freeze protection         of aio writes) Christoph Hellwig <hch@lst.de> - 2016-10-17 21:00 +0200
      Re: [PATCH] aio: fix a use after free (and fix freeze protection of aio writes) Jeff Moyer <jmoyer@redhat.com> - 2016-10-17 21:50 +0200
        Re: [PATCH] aio: fix a use after free (and fix freeze protection of  aio writes) Peter Zijlstra <peterz@infradead.org> - 2016-10-17 22:00 +0200
          Re: [PATCH] aio: fix a use after free (and fix freeze protection         of aio writes) Christoph Hellwig <hch@lst.de> - 2016-10-17 22:10 +0200
          Re: [PATCH] aio: fix a use after free (and fix freeze protection of aio writes) Jeff Moyer <jmoyer@redhat.com> - 2016-10-17 22:10 +0200
      Re: [PATCH] aio: fix a use after free (and fix freeze protection of  aio writes) Peter Zijlstra <peterz@infradead.org> - 2016-10-17 22:00 +0200
  Re: [PATCH] aio: fix a use after free (and fix freeze protection of aio writes) Jeff Moyer <jmoyer@redhat.com> - 2016-10-17 22:10 +0200
  Re: [PATCH] aio: fix a use after free (and fix freeze protection         of aio writes) Christoph Hellwig <hch@lst.de> - 2016-10-24 08:40 +0200

csiph-web