From: Artem Bityutskiy Date: Fri, 1 Jun 2012 14:18:08 +0000 (+0300) Subject: reiserfs: get rid of resierfs_sync_super X-Git-Tag: v3.5-rc1~15^2~18 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=033369d1af1264abc23bea2e174aa47cdd212f6f;p=pandora-kernel.git reiserfs: get rid of resierfs_sync_super This patch stops reiserfs using the VFS 'write_super()' method along with the s_dirt flag, because they are on their way out. The whole "superblock write-out" VFS infrastructure is served by the 'sync_supers()' kernel thread, which wakes up every 5 (by default) seconds and writes out all dirty superblock using the '->write_super()' call-back. But the problem with this thread is that it wastes power by waking up the system every 5 seconds, even if there are no diry superblocks, or there are no client file-systems which would need this (e.g., btrfs does not use '->write_super()'). So we want to kill it completely and thus, we need to make file-systems to stop using the '->write_super()' VFS service, and then remove it together with the kernel thread. Signed-off-by: Artem Bityutskiy Signed-off-by: Al Viro --- Reading git-diff-tree failed