Revision 033369d1af1264abc23bea2e174aa47cdd212f6f authored by Artem Bityutskiy on 01 June 2012, 14:18:08 UTC, committed by Al Viro on 01 June 2012, 14:37:36 UTC
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>
1 parent 5c5fd81
History
File Mode Size
Makefile -rw-r--r-- 287 bytes
ps3-lpm.c -rw-r--r-- 31.2 KB
ps3-sys-manager.c -rw-r--r-- 20.4 KB
ps3-vuart.c -rw-r--r-- 30.6 KB
ps3av.c -rw-r--r-- 27.7 KB
ps3av_cmd.c -rw-r--r-- 23.8 KB
ps3stor_lib.c -rw-r--r-- 9.6 KB
sys-manager-core.c -rw-r--r-- 2.0 KB
vuart.h -rw-r--r-- 2.8 KB

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