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authorArtem Bityutskiy <artem.bityutskiy@linux.intel.com>2012-06-06 19:56:57 +0400
committerAl Viro <viro@zeniv.linux.org.uk>2012-07-14 16:32:45 +0400
commit3dd847820d138c9d60764b0e920380373285ff10 (patch)
tree3eb6584eac00b8a6cf859d003ad0c1940e7e299c /fs/affs/bitmap.c
parenta215fef7edfdcd8948037ceb3060b9ae7ebcef8b (diff)
downloadlinux-3dd847820d138c9d60764b0e920380373285ff10.tar.xz
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>
Diffstat (limited to 'fs/affs/bitmap.c')
-rw-r--r--fs/affs/bitmap.c4
1 files changed, 2 insertions, 2 deletions
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);