linux-kernel - Re: ubifs: noatime support?

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Message-ID: <20180118212323.GA17412@amd>
Date:   Thu, 18 Jan 2018 22:23:23 +0100
From:   Pavel Machek <pavel@....cz>
To:     Richard Weinberger <richard@....at>
Cc:     kernel list <linux-kernel@...r.kernel.org>, dedekind1@...il.com,
        adrian.hunter@...el.com, linux-mtd@...ts.infradead.org,
        linux-fsdevel@...r.kernel.org
Subject: Re: ubifs: noatime support?

On Thu 2018-01-18 21:44:33, Richard Weinberger wrote:
> Pavel,
> 
> Am Donnerstag, 18. Januar 2018, 20:30:15 CET schrieb Pavel Machek:
> > Hi!
> > 
> > Ubifs seems to have atime support these days:
> > 
> >           sb->s_flags |= SB_ACTIVE;
> > #ifndef CONFIG_UBIFS_ATIME_SUPPORT
> >           sb->s_flags |= SB_NOATIME;
> > #else
> >           ubifs_msg(c, "full atime support is enabled.");
> > #endif
> > 
> > Which can be configured at compile-time, but no option to disable it
> > at runtime. What is going on there?
> > 
> > UBIFS: parse noatime
> > UBIFS error (ubi1:0 pid 94): ubifs_parse_options.constprop.5:
> > unrecognized mount option "noatime" e
> > mount: mounting ubi1:log_volume on /mnt/log failed: Invalid argument
> 
> Filesystems don't parse the "noatime" string, it is job of the mount tool to 
> translate it to the MS_NOATIME mount flag.

Ahha. I was using busybox version of mount. I guess I should check its
config. Thanks!
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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