From: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Date: Fri, 20 May 2011 14:24:34 +0000 (+0300)
Subject: UBI: dump stack when switching to R/O mode
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=2a826061df67f205636b953f58f8bede2a3f009c;p=deliverable%2Flinux.git

UBI: dump stack when switching to R/O mode

If we have debugging enabled and switching to R/O mode because of an error -
dump the stack to improve UBI error reporting and make the further diagnostics
easier to do.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
---

diff --git a/drivers/mtd/ubi/ubi.h b/drivers/mtd/ubi/ubi.h
index fd19f8d3bce8..dc64c767fd21 100644
--- a/drivers/mtd/ubi/ubi.h
+++ b/drivers/mtd/ubi/ubi.h
@@ -667,6 +667,7 @@ static inline void ubi_ro_mode(struct ubi_device *ubi)
 	if (!ubi->ro_mode) {
 		ubi->ro_mode = 1;
 		ubi_warn("switch to read-only mode");
+		ubi_dbg_dump_stack();
 	}
 }