From: Jie Liu <jeff.liu@oracle.com>
Date: Thu, 13 Jun 2013 03:13:59 +0000 (-0400)
Subject: ext4: return FIEMAP_EXTENT_UNKNOWN for delalloc extents
X-Git-Tag: v3.11-rc2~5^2~29
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=72dac95d4403ee7231e094e1735ecb96032e6117;p=profile%2Fivi%2Fkernel-x86-ivi.git

ext4: return FIEMAP_EXTENT_UNKNOWN for delalloc extents

Return the FIEMAP_EXTENT_UNKNOWN flag as well except the
FIEMAP_EXTENT_DELALLOC because the data location of an
delayed allocation extent is unknown.

Signed-off-by: Jie Liu <jeff.liu@oracle.com>
---

diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index d04f409..51e4168 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -2125,7 +2125,8 @@ static int ext4_fill_fiemap_extents(struct inode *inode,
 		next_del = ext4_find_delayed_extent(inode, &es);
 		if (!exists && next_del) {
 			exists = 1;
-			flags |= FIEMAP_EXTENT_DELALLOC;
+			flags |= (FIEMAP_EXTENT_DELALLOC |
+				  FIEMAP_EXTENT_UNKNOWN);
 		}
 		up_read(&EXT4_I(inode)->i_data_sem);