From 3b4977638f48e59d23d7ea2bb6dde78552c257fb Mon Sep 17 00:00:00 2001
From: caozhiyuan <cao.zhiyuan@zte.com.cn>
Date: Tue, 19 May 2015 17:21:00 +0800
Subject: Use f_bavail to calculate free space

Failures are seen on devices with
Linux 3.10. And they are mainly due to this change:
https://lwn.net/Articles/546473/
The blocks reserved in this change is not the same thing as what we
think are reserved for common usage of root user. And this part is
included in free blocks but not in available blocks.

Change-Id: Ib29e12d775b86ef657c0af7fa7a944d2b1e12dc8
---
 applypatch/applypatch.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/applypatch/applypatch.c b/applypatch/applypatch.c
index 6f02a38ee..2358d4292 100644
--- a/applypatch/applypatch.c
+++ b/applypatch/applypatch.c
@@ -662,7 +662,7 @@ size_t FreeSpaceForFile(const char* filename) {
         printf("failed to statfs %s: %s\n", filename, strerror(errno));
         return -1;
     }
-    return sf.f_bsize * sf.f_bfree;
+    return sf.f_bsize * sf.f_bavail;
 }
 
 int CacheSizeCheck(size_t bytes) {
-- 
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