Messages in this thread Patch in this message | | | Date | Thu, 23 Aug 2007 15:25:52 -0700 | From | Greg KH <> | Subject | [patch 01/28] ocfs2: Fix bad source start calculation during kernel writes |
| |
-stable review patch. If anyone has any objections, please let us know.
------------------
From: Mark Fasheh <mark.fasheh@oracle.com>
[PATCH] ocfs2: Fix bad source start calculation during kernel writes
For in-kernel writes ocfs2_get_write_source() should be starting the buffer at a page boundary as the math in ocfs2_map_and_write_user_data() will pad it back out to the correct write offset. Instead, we were passing the raw offset, which caused ocfs2_map_and_write_user_data() start too far into the buffer, resulting in corruptions from nfs client writes.
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
--- fs/ocfs2/file.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/ocfs2/file.c +++ b/fs/ocfs2/file.c @@ -1353,7 +1353,7 @@ static struct page * ocfs2_get_write_sou else src_page = ERR_PTR(-EFAULT); } else { - bp->b_src_buf = buf; + bp->b_src_buf = (char *)((unsigned long)buf & PAGE_CACHE_MASK); } return src_page; -- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |