AcoSail/kernel_optimize_test
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bfs: add ->sync_fs

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Add a ->sync_fs method for data integrity syncs, and reimplement
->write_super ontop of it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Christoph Hellwig 2009-06-08 10:03:38 +02:00 committed by Al Viro
parent e28964365f
commit 561e47ce72
1 changed files with 21 additions and 11 deletions
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32
fs/bfs/inode.c
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@ -216,6 +216,26 @@ static void bfs_delete_inode(struct inode *inode)
clear_inode(inode);
}
static int bfs_sync_fs(struct super_block *sb, int wait)
{
struct bfs_sb_info *info = BFS_SB(sb);
mutex_lock(&info->bfs_lock);
mark_buffer_dirty(info->si_sbh);
sb->s_dirt = 0;
mutex_unlock(&info->bfs_lock);
return 0;
}
static void bfs_write_super(struct super_block *sb)
{
if (!(sb->s_flags & MS_RDONLY))
bfs_sync_fs(sb, 1);
else
sb->s_dirt = 0;
}
static void bfs_put_super(struct super_block *s)
{
struct bfs_sb_info *info = BFS_SB(s);
@ -254,17 +274,6 @@ static int bfs_statfs(struct dentry *dentry, struct kstatfs *buf)
return 0;
}
static void bfs_write_super(struct super_block *s)
{
struct bfs_sb_info *info = BFS_SB(s);
mutex_lock(&info->bfs_lock);
if (!(s->s_flags & MS_RDONLY))
mark_buffer_dirty(info->si_sbh);
s->s_dirt = 0;
mutex_unlock(&info->bfs_lock);
}
static struct kmem_cache *bfs_inode_cachep;
static struct inode *bfs_alloc_inode(struct super_block *sb)
@ -312,6 +321,7 @@ static const struct super_operations bfs_sops = {
.delete_inode = bfs_delete_inode,
.put_super = bfs_put_super,
.write_super = bfs_write_super,
.sync_fs = bfs_sync_fs,
.statfs = bfs_statfs,
};