From: Dave Chinner <david@fromorbit.com>
To: Al Viro <viro@ZenIV.linux.org.uk>
Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 4/4] fs: remove inode_lock from iput_final and prune_icache
Date: Wed, 27 Oct 2010 20:12:52 +1100 [thread overview]
Message-ID: <20101027091252.GE32255@dastard> (raw)
In-Reply-To: <20101027044038.GE19804@ZenIV.linux.org.uk>
On Wed, Oct 27, 2010 at 05:40:38AM +0100, Al Viro wrote:
> On Wed, Oct 27, 2010 at 03:23:04PM +1100, Dave Chinner wrote:
> > From: Dave Chinner <dchinner@redhat.com>
> >
> > Now that inode state changes are protected by the inode->i_lock and
> > the inode LRU manipulations by the inode_lru_lock, we can remove the
> > inode_lock from prune_icache and the initial part of iput_final().
> >
> > instead of using the inode_lock to protect the inode during
> > iput_final, use the inode->i_lock instead. This protects the inode
> > against new references being taken while we change the inode state
> > to I_FREEING, as well as preventing prune_icache from grabbing the
> > inode while we are manipulating it. Hence we no longer need the
> > i???ode_lock in iput_final prior to setting I_FREEING on the inode.
> ^^^^^^^^^^^^
>
> ... the hell? There's more such damage elsewhere in the thread; what's
> going on?
vim utf-8 multibyte support that is causing these characters to be
created. e.g. e<backspace>' results in é. sometimes the resultant
character looks almost identical and so I didn't notice. I haven't
found the magic recipe to turn this off (maxcombine=0 doesn't seem
to stop it) or change the special compose sequence, so I'll keep
looking.
Cheers,
Dave.
--
Dave Chinner
david@fromorbit.com
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next prev parent reply other threads:[~2010-10-27 9:12 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-27 4:23 fs: break out inode LRU operations from node_lock Dave Chinner
2010-10-27 4:23 ` [PATCH 1/4] fs: protect inode->i_state with inode->i_lock Dave Chinner
2010-10-27 7:07 ` Christian Stroetmann
2010-10-27 8:58 ` Christoph Hellwig
2010-10-27 4:23 ` [PATCH 2/4] fs: factor inode disposal Dave Chinner
2010-10-27 7:55 ` Christoph Hellwig
2010-10-27 9:06 ` Christoph Hellwig
2010-10-27 4:23 ` [PATCH 3/4] fs: Lock the inode LRU list separately Dave Chinner
2010-10-27 7:08 ` Christian Stroetmann
2010-10-27 9:05 ` Christoph Hellwig
2010-10-27 22:24 ` Dave Chinner
2010-10-28 10:25 ` Christoph Hellwig
2010-10-28 10:58 ` Dave Chinner
2010-10-27 4:23 ` [PATCH 4/4] fs: remove inode_lock from iput_final and prune_icache Dave Chinner
2010-10-27 4:40 ` Al Viro
2010-10-27 4:47 ` Eric Dumazet
2010-10-27 5:25 ` Al Viro
2010-10-27 5:50 ` Eric Dumazet
2010-10-27 6:01 ` Al Viro
2010-10-27 6:09 ` Davidlohr Bueso
2010-10-27 7:11 ` Christian Stroetmann
2010-10-27 9:12 ` Dave Chinner [this message]
-- strict thread matches above, loose matches on Subject: below --
2010-10-27 23:02 fs: break out inode LRU operations from inode_lock V2 Dave Chinner
2010-10-27 23:02 ` [PATCH 4/4] fs: remove inode_lock from iput_final and prune_icache Dave Chinner
2010-10-28 12:00 ` Christoph Hellwig
2010-10-28 21:41 ` Dave Chinner
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