linux-kernel - Re: linux-next: build failure after merge of the vfs tree

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20120104184746.GA8461@infradead.org>
Date:	Wed, 4 Jan 2012 13:47:46 -0500
From:	Christoph Hellwig <hch@...radead.org>
To:	Jan Kara <jack@...e.cz>
Cc:	Dave Chinner <david@...morbit.com>,
	Al Viro <viro@...IV.linux.org.uk>,
	Stephen Rothwell <sfr@...b.auug.org.au>,
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	Mikulas Patocka <mpatocka@...hat.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: linux-next: build failure after merge of the vfs tree

On Wed, Jan 04, 2012 at 07:00:33PM +0100, Jan Kara wrote:
> On Wed 04-01-12 13:50:20, Dave Chinner wrote:
> > On Wed, Jan 04, 2012 at 02:17:54AM +0000, Al Viro wrote:
> > > I'm still not
> > > sure about ->statfs(), BTW - any input on that would be welcome.  Can
> > > it end up blocked on a frozen fs until said fs is thawed?
> > 
> > I don't see why this should ever happen - ->statfs has to work on
> > read-only filesystems so shoul dnot be modifying state, and hence
> > should never need to care about the frozen state of the superblock.
>   Well, I'm also not aware of a filesystem where ->statfs would wait on
> frozen filesystem. Just note that e.g. for stat(2) frozen filesystem and
> RO filesystem *are* different because of atime updates. So stat(2) can
> block on frozen fs because of atime update while on RO filesystem it is
> just fine.

Neither of those should cause atime updates.

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/