From: Fam Zheng <famz@redhat.com>
Date: Fri, 27 Jul 2018 06:53:14 +0000 (+0800)
Subject: file-posix: Handle EINTR in preallocation=full write
X-Git-Tag: qemu-xen-4.12.0-rc1~22^2~10
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=a1c81f4f16a74d0d544f5d3ac405bcaad83541fd;p=qemu-xen.git

file-posix: Handle EINTR in preallocation=full write

Cc: qemu-stable@nongnu.org
Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
---

diff --git a/block/file-posix.c b/block/file-posix.c
index ad299beb38..928b863ced 100644
--- a/block/file-posix.c
+++ b/block/file-posix.c
@@ -1646,6 +1646,9 @@ static int handle_aiocb_truncate(RawPosixAIOData *aiocb)
             num = MIN(left, 65536);
             result = write(fd, buf, num);
             if (result < 0) {
+                if (errno == EINTR) {
+                    continue;
+                }
                 result = -errno;
                 error_setg_errno(errp, -result,
                                  "Could not write zeros for preallocation");