From: Christoph Hellwig <hch@lst.de>
Date: Fri, 5 Jun 2009 10:26:23 +0000 (+0200)
Subject: xfs: remove ->write_super and stop maintaining ->s_dirt
X-Git-Tag: v2.6.31-rc1~375^2~36
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f95022161d23ee661a48af8f280472209f513a67;p=pandora-kernel.git

xfs: remove ->write_super and stop maintaining ->s_dirt

the write_super method is used for

 (1) writing back the superblock periodically from pdflush
 (2) called just before ->sync_fs for data integerity syncs

We don't need (1) because we have our own peridoc writeout through xfssyncd,
and we don't need (2) because xfs_fs_sync_fs performs a proper synchronous
superblock writeout after all other data and metadata has been written out.

Also remove ->s_dirt tracking as it's only used to decide when too call
->write_super.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Eric Sandeen <sandeen@sandeen.net>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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