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authorArtem Bityutskiy <artem.bityutskiy@linux.intel.com>2012-06-01 17:18:08 +0300
committerAl Viro <viro@zeniv.linux.org.uk>2012-06-01 10:37:36 -0400
commit033369d1af1264abc23bea2e174aa47cdd212f6f (patch)
treeb00e709d1e9270b1708488da7a596a8dff72541d /fs/splice.c
parent5c5fd81962271d4ee2984837fef4ec37e689aa41 (diff)
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 <artem.bityutskiy@linux.intel.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/splice.c')
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