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author | Artem Bityutskiy <artem.bityutskiy@linux.intel.com> | 2012-06-06 17:56:57 +0200 |
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committer | Al Viro <viro@zeniv.linux.org.uk> | 2012-07-14 14:32:45 +0200 |
commit | 3dd847820d138c9d60764b0e920380373285ff10 (patch) | |
tree | 3eb6584eac00b8a6cf859d003ad0c1940e7e299c /fs/direct-io.c | |
parent | affs: introduce VFS superblock object back-reference (diff) | |
download | linux-3dd847820d138c9d60764b0e920380373285ff10.tar.xz linux-3dd847820d138c9d60764b0e920380373285ff10.zip |
affs: get rid of affs_sync_super
This patch makes affs stop using the VFS '->write_super()' method along with
the 's_dirt' superblock 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 superblocks 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>
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0 files changed, 0 insertions, 0 deletions