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Date: Mon, 27 Jun 2011 09:05:41 +0200
From: Andrea Righi <andrea@betterlinux.com>
Subject: Re: [PATCH v3 1/2] mm: introduce __invalidate_mapping_pages()
Message-ID: <20110627070541.GB1247@thinkpad>
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To: Rik van Riel <riel@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>, Minchan Kim <minchan.kim@gmail.com>, Peter Zijlstra <peterz@infradead.org>, Johannes Weiner <hannes@cmpxchg.org>, KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>, Andrea Arcangeli <aarcange@redhat.com>, Hugh Dickins <hughd@google.com>, Jerry James <jamesjer@betterlinux.com>, Marcus Sorensen <marcus@bluehost.com>, Matt Heaton <matt@bluehost.com>, KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>, Theodore Tso <tytso@mit.edu>, Shaohua Li <shaohua.li@intel.com>, =?iso-8859-1?Q?P=E1draig?= Brady <P@draigBrady.com>, linux-mm <linux-mm@kvack.org>, LKML <linux-kernel@vger.kernel.org>

On Sun, Jun 26, 2011 at 06:46:46PM -0400, Rik van Riel wrote:
> On 06/24/2011 09:49 AM, Andrea Righi wrote:
> 
> >diff --git a/mm/truncate.c b/mm/truncate.c
> >index 3a29a61..90f3a97 100644
> >--- a/mm/truncate.c
> >+++ b/mm/truncate.c
> >@@ -312,20 +312,27 @@ void truncate_inode_pages(struct address_space *mapping, loff_t lstart)
> >  EXPORT_SYMBOL(truncate_inode_pages);
> >
> >  /**
> >- * invalidate_mapping_pages - Invalidate all the unlocked pages of one inode
> >+ * __invalidate_mapping_pages - Invalidate all the unlocked pages of one inode
> >   * @mapping: the address_space which holds the pages to invalidate
> >   * @start: the offset 'from' which to invalidate
> >   * @end: the offset 'to' which to invalidate (inclusive)
> >+ * @force: always drop pages when true (otherwise, reduce cache eligibility)
> 
> I don't like the parameter name "force".

Agreed.

> 
> The parameter determines whether or not pages actually get
> invalidated, so I'm guessing the parameter name should
> reflect the function...
> 
> Maybe something like "invalidate"?

Sounds better.

-Andrea

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