From: David Chinner <dgc@sgi.com>
Date: Wed, 20 Dec 2006 23:24:01 +0000 (+1100)
Subject: [PATCH] Fix XFS after clear_page_dirty() removal
X-Git-Tag: v2.6.20-rc2~67
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=921320210bd2ec4f17053d283355b73048ac0e56;p=pandora-kernel.git

[PATCH] Fix XFS after clear_page_dirty() removal

XFS appears to call clear_page_dirty to get the mapping tree dirty tag
set correctly at the same time the page dirty flag is cleared.  I note
that this can be done by set_page_writeback() if we clear the dirty flag
on the page first when we are writing back the entire page.

Hence it seems to me that the XFS call to clear_page_dirty() could
easily be substituted by clear_page_dirty_for_io() followed by a call to
set_page_writeback() to get the mapping tree tags set correctly after
the page has been marked clean.

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

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