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| author | Artem Bityutskiy <artem.bityutskiy@linux.intel.com> | 2012-07-12 17:28:49 +0300 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2012-07-22 23:58:09 +0400 |
| commit | 5687b5780e90278a62d4cd916a3632087066f59d (patch) | |
| tree | 362f5c4b25cc1edd9ae69ac561192859cfd9c201 /fs/hfs/extent.c | |
| parent | b16ca626358cbf056b752eab63ba8f20087afeaf (diff) | |
| download | talos-obmc-linux-5687b5780e90278a62d4cd916a3632087066f59d.tar.gz talos-obmc-linux-5687b5780e90278a62d4cd916a3632087066f59d.zip | |
hfs: get rid of hfs_sync_super
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>
Diffstat (limited to 'fs/hfs/extent.c')
| -rw-r--r-- | fs/hfs/extent.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/hfs/extent.c b/fs/hfs/extent.c index 2c16316d2917..a67955a0c36f 100644 --- a/fs/hfs/extent.c +++ b/fs/hfs/extent.c @@ -432,7 +432,7 @@ out: if (inode->i_ino < HFS_FIRSTUSER_CNID) set_bit(HFS_FLG_ALT_MDB_DIRTY, &HFS_SB(sb)->flags); set_bit(HFS_FLG_MDB_DIRTY, &HFS_SB(sb)->flags); - sb->s_dirt = 1; + hfs_mark_mdb_dirty(sb); } return res; |
