![]() This patch makes hfs 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. Tested using fsstress from the LTP project. Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |
||
---|---|---|
.. | ||
attr.c | ||
bfind.c | ||
bitmap.c | ||
bnode.c | ||
brec.c | ||
btree.c | ||
btree.h | ||
catalog.c | ||
dir.c | ||
extent.c | ||
hfs.h | ||
hfs_fs.h | ||
inode.c | ||
Kconfig | ||
Makefile | ||
mdb.c | ||
part_tbl.c | ||
string.c | ||
super.c | ||
sysdep.c | ||
trans.c |