Add a ->sync_fs method for data integrity syncs, and reimplement
->write_super ontop of it.
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Index: vfs-2.6/fs/hfsplus/super.c
===================================================================
--- vfs-2.6.orig/fs/hfsplus/super.c 2009-06-05 16:17:32.048939821 +0200
+++ vfs-2.6/fs/hfsplus/super.c 2009-06-05 16:19:06.525940458 +0200
@@ -152,7 +152,7 @@ static void hfsplus_clear_inode(struct i
}
}
-static void hfsplus_write_super(struct super_block *sb)
+static int hfsplus_sync_fs(struct super_block *sb, int wait)
{
struct hfsplus_vh *vhdr = HFSPLUS_SB(sb).s_vhdr;
@@ -160,9 +160,6 @@ static void hfsplus_write_super(struct s
lock_super(sb);
sb->s_dirt = 0;
- if (sb->s_flags & MS_RDONLY)
- /* warn? */
- goto out;
vhdr->free_blocks = cpu_to_be32(HFSPLUS_SB(sb).free_blocks);
vhdr->next_alloc = cpu_to_be32(HFSPLUS_SB(sb).next_alloc);
@@ -194,8 +191,16 @@ static void hfsplus_write_super(struct s
}
HFSPLUS_SB(sb).flags &= ~HFSPLUS_SB_WRITEBACKUP;
}
- out:
unlock_super(sb);
+ return 0;
+}
+
+static void hfsplus_write_super(struct super_block *sb)
+{
+ if (!(sb->s_flags & MS_RDONLY))
+ hfsplus_sync_fs(sb, 1);
+ else
+ sb->s_dirt = 0;
}
static void hfsplus_put_super(struct super_block *sb)
@@ -290,6 +295,7 @@ static const struct super_operations hfs
.clear_inode = hfsplus_clear_inode,
.put_super = hfsplus_put_super,
.write_super = hfsplus_write_super,
+ .sync_fs = hfsplus_sync_fs,
.statfs = hfsplus_statfs,
.remount_fs = hfsplus_remount,
.show_options = hfsplus_show_options,
--
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