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Re: [PATCH 2/5] fs: Fix WARN_ON in inode_set_mask()

To: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Subject: Re: [PATCH 2/5] fs: Fix WARN_ON in inode_set_mask()
From: Jan Kara <jack@xxxxxxx>
Date: Thu, 4 Dec 2014 19:34:16 +0100
Cc: Jan Kara <jack@xxxxxxx>, linux-fsdevel@xxxxxxxxxxxxxxx, xfs@xxxxxxxxxxx, linux-security-module@xxxxxxxxxxxxxxx
Delivered-to: xfs@xxxxxxxxxxx
In-reply-to: <20141204143708.GM29748@xxxxxxxxxxxxxxxxxx>
References: <1417699659-14284-1-git-send-email-jack@xxxxxxx> <1417699659-14284-3-git-send-email-jack@xxxxxxx> <20141204143708.GM29748@xxxxxxxxxxxxxxxxxx>
User-agent: Mutt/1.5.21 (2010-09-15)
On Thu 04-12-14 14:37:09, Al Viro wrote:
> On Thu, Dec 04, 2014 at 02:27:36PM +0100, Jan Kara wrote:
> > WARN_ON in inode_set_mask() warns if we don't clear all bits we are
> > setting instead of reverse - warning when caller requests setting and
> > clearing of the same bit.
> WTF?  'mask' is "all bits we are asked to modify", 'flags' - "the values to
> put into those bits".  Have you even looked at the callers, let alone
> tested it?
  Sorry, I misunderstood how the function is supposed to work. Discard this
patch please.

Jan Kara <jack@xxxxxxx>

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