From: Theodore Ts'o Date: Fri, 28 May 2010 19:26:25 +0000 (-0500) Subject: ext4: Use our own write_cache_pages() X-Git-Tag: v2.6.27.48~10 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=14dd35b4c54e223de27d1161985eeef847a130ee;p=pandora-kernel.git ext4: Use our own write_cache_pages() commit 8e48dcfbd7c0892b4cfd064d682cc4c95a29df32 upstream. Make a copy of write_cache_pages() for the benefit of ext4_da_writepages(). This allows us to simplify the code some, and will allow us to further customize the code in future patches. There are some nasty hacks in write_cache_pages(), which Linus has (correctly) characterized as vile. I've just copied it into write_cache_pages_da(), without trying to clean those bits up lest I break something in the ext4's delalloc implementation, which is a bit fragile right now. This will allow Dave Chinner to clean up write_cache_pages() in mm/page-writeback.c, without worrying about breaking ext4. Eventually write_cache_pages_da() will go away when I rewrite ext4's delayed allocation and create a general ext4_writepages() which is used for all of ext4's writeback. Until now this is the lowest risk way to clean up the core write_cache_pages() function. Signed-off-by: "Theodore Ts'o" Cc: Dave Chinner [dev@jaysonking.com: Dropped the hunks which reverted the use of no_nrwrite_index_update, since those lines weren't ever created on 2.6.27.y] [dev@jaysonking.com: Copied from 2.6.27.y's version of write_cache_pages(), plus the changes to it from patch "vfs: Add no_nrwrite_index_update writeback control flag"] Signed-off-by: Jayson R. King Signed-off-by: Greg Kroah-Hartman --- Reading git-diff-tree failed