From: yanhai zhu <zhu.yanhai@gmail.com>
Date: Mon, 5 Jan 2009 20:49:11 +0000 (-0500)
Subject: Btrfs: Fix memset length in btrfs_file_write
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=9aead43588f4bdb1bb61e348ad0f33794bbddc0f;p=deliverable%2Flinux.git

Btrfs: Fix memset length in btrfs_file_write

Signed-off-by: Chris Mason <chris.mason@oracle.com>
---

diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 507081059d97..5908521922fb 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -1094,7 +1094,7 @@ static ssize_t btrfs_file_write(struct file *file, const char __user *buf,
 					PAGE_CACHE_SHIFT;
 
 		WARN_ON(num_pages > nrptrs);
-		memset(pages, 0, sizeof(pages));
+		memset(pages, 0, sizeof(struct page *) * nrptrs);
 
 		ret = btrfs_check_free_space(root, write_bytes, 0);
 		if (ret)