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Date:      Fri, 9 Nov 2012 21:22:54 +0200
From:      Konstantin Belousov <kostikbel@gmail.com>
To:        Attilio Rao <attilio@FreeBSD.org>
Cc:        svn-src-head@FreeBSD.org, svn-src-all@FreeBSD.org, src-committers@FreeBSD.org
Subject:   Re: svn commit: r242833 - in head/sys: cddl/contrib/opensolaris/uts/common/fs/zfs fs/cd9660 fs/devfs fs/ext2fs fs/fdescfs fs/fuse fs/msdosfs fs/nandfs fs/nfsclient fs/nullfs fs/pseudofs fs/tmpfs fs/udf...
Message-ID:  <20121109192254.GH73505@kib.kiev.ua>
In-Reply-To: <CAJ-FndDWut=0EbYhRM%2BxeoLjPoYMbcg2QJ8dLOpMiVPFUiMgSQ@mail.gmail.com>
References:  <201211091802.qA9I2QP6026142@svn.freebsd.org> <20121109181103.GF73505@kib.kiev.ua> <CAJ-FndDX6LY5xJS4Cd1%2BjXfrewtYcgsOacbXcvcwK9h2Px-GnQ@mail.gmail.com> <CAJ-FndDWut=0EbYhRM%2BxeoLjPoYMbcg2QJ8dLOpMiVPFUiMgSQ@mail.gmail.com>

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On Fri, Nov 09, 2012 at 06:50:52PM +0000, Attilio Rao wrote:
> On Fri, Nov 9, 2012 at 6:47 PM, Attilio Rao <attilio@freebsd.org> wrote:
> > On Fri, Nov 9, 2012 at 6:11 PM, Konstantin Belousov <kostikbel@gmail.co=
m> wrote:
> >> On Fri, Nov 09, 2012 at 06:02:26PM +0000, Attilio Rao wrote:
> >>> Author: attilio
> >>> Date: Fri Nov  9 18:02:25 2012
> >>> New Revision: 242833
> >>> URL: http://svnweb.freebsd.org/changeset/base/242833
> >>>
> >>> Log:
> >>>   Complete MPSAFE VFS interface and remove MNTK_MPSAFE flag.
> >>>   Porters should refer to __FreeBSD_version 1000021 for this change as
> >>>   it may have happened at the same timeframe.
> >>>
> >>> Modified: head/sys/fs/fuse/fuse_vfsops.c
> >>> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D
> >>> --- head/sys/fs/fuse/fuse_vfsops.c    Fri Nov  9 17:56:49 2012       =
 (r242832)
> >>> +++ head/sys/fs/fuse/fuse_vfsops.c    Fri Nov  9 18:02:25 2012       =
 (r242833)
> >>> @@ -339,7 +339,6 @@ fuse_vfsop_mount(struct mount *mp)
> >>>
> >>>       vfs_getnewfsid(mp);
> >>>       mp->mnt_flag |=3D MNT_LOCAL;
> >>> -     mp->mnt_kern_flag |=3D MNTK_MPSAFE;
> >>>       if (subtype) {
> >>>               strlcat(mp->mnt_stat.f_fstypename, ".", MFSNAMELEN);
> >>>               strlcat(mp->mnt_stat.f_fstypename, subtype, MFSNAMELEN);
> >>
> >> mnt_flag update should happen under the mount interlock.
> >
> > Yes I already have a patch for that, I'm waiting for testing by flo.
>=20
> http://www.freebsd.org/~attilio/fuse_mnt_flag.patch

Why mp->mnt_data and mp->mnt_stat.f_iosize updates are synchronized ?
VFS does not modify them.

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