From 3dd847820d138c9d60764b0e920380373285ff10 Mon Sep 17 00:00:00 2001 From: Artem Bityutskiy Date: Wed, 6 Jun 2012 18:56:57 +0300 Subject: 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 Signed-off-by: Al Viro --- fs/affs/bitmap.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'fs/affs/bitmap.c') diff --git a/fs/affs/bitmap.c b/fs/affs/bitmap.c index 3e262711ae06..6e0be43ef6ef 100644 --- a/fs/affs/bitmap.c +++ b/fs/affs/bitmap.c @@ -103,7 +103,7 @@ affs_free_block(struct super_block *sb, u32 block) *(__be32 *)bh->b_data = cpu_to_be32(tmp - mask); mark_buffer_dirty(bh); - sb->s_dirt = 1; + affs_mark_sb_dirty(sb); bm->bm_free++; mutex_unlock(&sbi->s_bmlock); @@ -248,7 +248,7 @@ find_bit: *(__be32 *)bh->b_data = cpu_to_be32(tmp + mask); mark_buffer_dirty(bh); - sb->s_dirt = 1; + affs_mark_sb_dirty(sb); mutex_unlock(&sbi->s_bmlock); -- cgit v1.2.3