[Ocfs2-devel] [PATCH 1/1] OCFS2: add IO error check in ocfs2_get_sector() -v3

[wengang wang]

checks IO error in ocfs2_get_sector().

this patch is based on Linus' git.

Signed-off-by: Wengang Wang <wen.gang.wang at oracle.com>
--
diff -up ./fs/ocfs2/super.c.orig ./fs/ocfs2/super.c
--- ./fs/ocfs2/super.c.orig	2009-02-12 18:05:19.023685000 -0800
+++ ./fs/ocfs2/super.c	2009-02-12 18:07:13.995623000 -0800
@@ -1537,6 +1537,13 @@ static int ocfs2_get_sector(struct super
 	unlock_buffer(*bh);
 	ll_rw_block(READ, 1, bh);
 	wait_on_buffer(*bh);
+	if (!buffer_uptodate(*bh)) {
+		mlog_errno(-EIO);
+		brelse(*bh);
+		*bh = NULL;
+		return -EIO;
+	}
+
 	return 0;
 }