From 652b1d16295ec3b2593bf999425c37176a8b3aca Mon Sep 17 00:00:00 2001
From: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Date: Thu, 10 Jul 2008 18:38:33 +0300
Subject: [PATCH] --- yaml --- r: 106066 b: refs/heads/master c:
 a5bf6190417cbbf80443a9f71c65b653e13e9982 h: refs/heads/master v: v3

---
 [refs]                        |  2 +-
 trunk/drivers/mtd/ubi/kapi.c  | 24 ++++++++++++++++++++++++
 trunk/include/linux/mtd/ubi.h |  1 +
 3 files changed, 26 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index 617e8416308b..0e8af9e47e53 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 73789a3d9fd8e500e121c1d4a5a2b16dd748ab5f
+refs/heads/master: a5bf6190417cbbf80443a9f71c65b653e13e9982
diff --git a/trunk/drivers/mtd/ubi/kapi.c b/trunk/drivers/mtd/ubi/kapi.c
index 51508832566d..e65c8e0bcd5d 100644
--- a/trunk/drivers/mtd/ubi/kapi.c
+++ b/trunk/drivers/mtd/ubi/kapi.c
@@ -632,3 +632,27 @@ int ubi_is_mapped(struct ubi_volume_desc *desc, int lnum)
 	return vol->eba_tbl[lnum] >= 0;
 }
 EXPORT_SYMBOL_GPL(ubi_is_mapped);
+
+/**
+ * ubi_sync - synchronize UBI device buffers.
+ * @ubi_num: UBI device to synchronize
+ *
+ * The underlying MTD device may cache data in hardware or in software. This
+ * function ensures the caches are flushed. Returns zero in case of success and
+ * a negative error code in case of failure.
+ */
+int ubi_sync(int ubi_num)
+{
+	struct ubi_device *ubi;
+
+	ubi = ubi_get_device(ubi_num);
+	if (!ubi)
+		return -ENODEV;
+
+	if (ubi->mtd->sync)
+		ubi->mtd->sync(ubi->mtd);
+
+	ubi_put_device(ubi);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(ubi_sync);
diff --git a/trunk/include/linux/mtd/ubi.h b/trunk/include/linux/mtd/ubi.h
index f71201d0f3e7..83302bbbddb4 100644
--- a/trunk/include/linux/mtd/ubi.h
+++ b/trunk/include/linux/mtd/ubi.h
@@ -152,6 +152,7 @@ int ubi_leb_erase(struct ubi_volume_desc *desc, int lnum);
 int ubi_leb_unmap(struct ubi_volume_desc *desc, int lnum);
 int ubi_leb_map(struct ubi_volume_desc *desc, int lnum, int dtype);
 int ubi_is_mapped(struct ubi_volume_desc *desc, int lnum);
+int ubi_sync(int ubi_num);
 
 /*
  * This function is the same as the 'ubi_leb_read()' function, but it does not