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/ufs/super.c
===================================================================
--- vfs-2.6.orig/fs/ufs/super.c 2009-06-05 16:27:47.634965023 +0200
+++ vfs-2.6/fs/ufs/super.c 2009-06-05 16:29:38.547814343 +0200
@@ -1124,7 +1124,7 @@ failed_nomem:
return -ENOMEM;
}
-static void ufs_write_super(struct super_block *sb)
+static int ufs_sync_fs(struct super_block *sb, int wait)
{
struct ufs_sb_private_info * uspi;
struct ufs_super_block_first * usb1;
@@ -1133,25 +1133,36 @@ static void ufs_write_super(struct super
lock_super(sb);
lock_kernel();
+
UFSD("ENTER\n");
+
flags = UFS_SB(sb)->s_flags;
uspi = UFS_SB(sb)->s_uspi;
usb1 = ubh_get_usb_first(uspi);
usb3 = ubh_get_usb_third(uspi);
- if (!(sb->s_flags & MS_RDONLY)) {
- usb1->fs_time = cpu_to_fs32(sb, get_seconds());
- if ((flags & UFS_ST_MASK) == UFS_ST_SUN
- || (flags & UFS_ST_MASK) == UFS_ST_SUNOS
- || (flags & UFS_ST_MASK) == UFS_ST_SUNx86)
- ufs_set_fs_state(sb, usb1, usb3,
- UFS_FSOK - fs32_to_cpu(sb, usb1->fs_time));
- ufs_put_cstotal(sb);
- }
+ usb1->fs_time = cpu_to_fs32(sb, get_seconds());
+ if ((flags & UFS_ST_MASK) == UFS_ST_SUN ||
+ (flags & UFS_ST_MASK) == UFS_ST_SUNOS ||
+ (flags & UFS_ST_MASK) == UFS_ST_SUNx86)
+ ufs_set_fs_state(sb, usb1, usb3,
+ UFS_FSOK - fs32_to_cpu(sb, usb1->fs_time));
+ ufs_put_cstotal(sb);
sb->s_dirt = 0;
+
UFSD("EXIT\n");
unlock_kernel();
unlock_super(sb);
+
+ return 0;
+}
+
+static void ufs_write_super(struct super_block *sb)
+{
+ if (!(sb->s_flags & MS_RDONLY))
+ ufs_sync_fs(sb, 1);
+ else
+ sb->s_dirt = 0;
}
static void ufs_put_super(struct super_block *sb)
@@ -1372,6 +1383,7 @@ static const struct super_operations ufs
.delete_inode = ufs_delete_inode,
.put_super = ufs_put_super,
.write_super = ufs_write_super,
+ .sync_fs = ufs_sync_fs,
.statfs = ufs_statfs,
.remount_fs = ufs_remount,
.show_options = ufs_show_options,
--
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