linux-ext4 - Re: [PATCH v5 3/7] mm: add find_get_entries

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Message-Id: <20151222144611.07002cfde41d035125da2fa5@linux-foundation.org>
Date:	Tue, 22 Dec 2015 14:46:11 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Ross Zwisler <ross.zwisler@...ux.intel.com>
Cc:	linux-kernel@...r.kernel.org, "H. Peter Anvin" <hpa@...or.com>,
	"J. Bruce Fields" <bfields@...ldses.org>,
	"Theodore Ts'o" <tytso@....edu>,
	Alexander Viro <viro@...iv.linux.org.uk>,
	Andreas Dilger <adilger.kernel@...ger.ca>,
	Dave Chinner <david@...morbit.com>,
	Ingo Molnar <mingo@...hat.com>, Jan Kara <jack@...e.com>,
	Jeff Layton <jlayton@...chiereds.net>,
	Matthew Wilcox <willy@...ux.intel.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	linux-ext4@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	linux-mm@...ck.org, linux-nvdimm@...1.01.org, x86@...nel.org,
	xfs@....sgi.com, Dan Williams <dan.j.williams@...el.com>,
	Matthew Wilcox <matthew.r.wilcox@...el.com>,
	Dave Hansen <dave.hansen@...ux.intel.com>
Subject: Re: [PATCH v5 3/7] mm: add find_get_entries_tag()

On Fri, 18 Dec 2015 22:22:16 -0700 Ross Zwisler <ross.zwisler@...ux.intel.com> wrote:

> Add find_get_entries_tag() to the family of functions that include
> find_get_entries(), find_get_pages() and find_get_pages_tag().  This is
> needed for DAX dirty page handling because we need a list of both page
> offsets and radix tree entries ('indices' and 'entries' in this function)
> that are marked with the PAGECACHE_TAG_TOWRITE tag.
> 
> ...
>
> +EXPORT_SYMBOL(find_get_entries_tag);

This is actually a pretty crappy name because it doesn't describe what
subsystem it belongs to.  scheduler?  scatter/gather?  filesystem?

But given what we've already done, I don't see an obvious fix.
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