[lxc-devel] [PATCH] In lxc.mount.auto, skip on ENONENT
Stéphane Graber
stgraber at ubuntu.com
Sun Feb 1 15:19:12 UTC 2015
On Sun, Feb 01, 2015 at 07:20:37AM +0000, Serge Hallyn wrote:
> Quoting Stéphane Graber (stgraber at ubuntu.com):
> > This resolves the case where /proc/sysrq-trigger doesn't exist by simply
> > ignoring any mount failure on ENOENT. With the current mount list, this
> > will always result in a safe environment (typically the read-only
> > underlay).
> >
> > Closes #425
> >
> > Signed-off-by: Stéphane Graber <stgraber at ubuntu.com>
> > ---
> > src/lxc/conf.c | 6 +++++-
> > 1 file changed, 5 insertions(+), 1 deletion(-)
> >
> > diff --git a/src/lxc/conf.c b/src/lxc/conf.c
> > index fbe82b5..5a99324 100644
> > --- a/src/lxc/conf.c
> > +++ b/src/lxc/conf.c
> > @@ -798,7 +798,11 @@ static int lxc_mount_auto_mounts(struct lxc_conf *conf, int flags, struct lxc_ha
> > default_mounts[i].flags);
> > r = mount(source, destination, default_mounts[i].fstype, mflags, default_mounts[i].options);
> > saved_errno = errno;
> > - if (r < 0)
> > + if (r < 0 && errno == ENOENT) {
> > + INFO("Mount source or target for %s on %s doesn't exist. Skipping.", source, destination);
> > + r = 0;
> > + }
> > + else
>
> This will print an error when mount succeeded.
Oops, clearly that shows I can't focus while at a conference :)
I'll send a v2 which fixes that in a bit.
>
> > SYSERROR("error mounting %s on %s flags %lu", source, destination, mflags);
> >
> > free(source);
> > --
> > 1.9.1
> >
> > _______________________________________________
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> > lxc-devel at lists.linuxcontainers.org
> > http://lists.linuxcontainers.org/listinfo/lxc-devel
> _______________________________________________
> lxc-devel mailing list
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--
Stéphane Graber
Ubuntu developer
http://www.ubuntu.com
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