On 07/27/2018 03:19 AM, Niels de Vos wrote:
From: Prasanna Kumar Kalever <prasanna.kale...@redhat.com>
New versions of Glusters libgfapi.so have an updated glfs_ftruncate()
function that returns additional 'struct stat' structures to enable
advanced caching of attributes. This is useful for file servers, not so
much for QEMU. Nevertheless, the API has changed and needs to be
adopted.
Oh, one other comment.
+++ b/block/gluster.c
@@ -20,6 +20,10 @@
#include "qemu/option.h"
#include "qemu/cutils.h"
+#ifdef CONFIG_GLUSTERFS_LEGACY_FTRUNCATE
+# define glfs_ftruncate(fd, offset, _u1, _u2) glfs_ftruncate(fd, offset)
+#endif
Someday, when we can assume new enough gluster everywhere, we can drop
this hunk...
+++ b/configure
+ /* new glfs_ftruncate() passes two additional args */
+ return glfs_ftruncate(NULL, 0 /*, NULL, NULL */);
+}
+EOF
+ if compile_prog "$glusterfs_cflags" "$glusterfs_libs" ; then
+ glusterfs_legacy_ftruncate="yes"
+ fi
...but it will be easier to remember to do so if this comment in
configure calls out the upstream gluster version that no longer requires
the legacy workaround, as our hint for when...
else
if test "$glusterfs" = "yes" ; then
feature_not_found "GlusterFS backend support" \
@@ -6644,6 +6658,10 @@ if test "$glusterfs_zerofill" = "yes" ; then
echo "CONFIG_GLUSTERFS_ZEROFILL=y" >> $config_host_mak
fi
+if test "$glusterfs_legacy_ftruncate" = "yes" ; then
+ echo "CONFIG_GLUSTERFS_LEGACY_FTRUNCATE=y" >> $config_host_mak
...this #define is no longer necessary.
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3266
Virtualization: qemu.org | libvirt.org
