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From c8c95fc7f40ace3e7125bcd2cbec1a7c39627503 Mon Sep 17 00:00:00 2001
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From: Miroslav Rezanina <mrezanin@redhat.com>
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Date: Tue, 14 Apr 2020 07:08:25 +0200
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Subject: [PATCH 1/2] gluster: Handle changed glfs_ftruncate signature
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RH-Author: Miroslav Rezanina <mrezanin@redhat.com>
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Message-id: <251e640171ad2596aa802518bbb936478c34c39c.1586442545.git.mrezanin@redhat.com>
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Patchwork-id: 94621
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O-Subject: [RHEL-7.8 qemu-kvm PATCH 1/2] gluster: Handle changed glfs_ftruncate signature
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Bugzilla: 1822235
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RH-Acked-by: John Snow <jsnow@redhat.com>
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RH-Acked-by: Stefano Garzarella <sgarzare@redhat.com>
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RH-Acked-by: Max Reitz <mreitz@redhat.com>
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From: Miroslav Rezanina <mrezanin@redhat.com>
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From: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
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New versions of Glusters libgfapi.so have an updated glfs_ftruncate()
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function that returns additional 'struct stat' structures to enable
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advanced caching of attributes. This is useful for file servers, not so
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much for QEMU. Nevertheless, the API has changed and needs to be
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adopted.
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Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
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Signed-off-by: Niels de Vos <ndevos@redhat.com>
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Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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(cherry picked from commit e014dbe74e0484188164c61ff6843f8a04a8cb9d)
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Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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---
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block/gluster.c | 5 +++++
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configure | 18 ++++++++++++++++++
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2 files changed, 23 insertions(+)
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diff --git a/block/gluster.c b/block/gluster.c
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index 86e136d..d6160af 100644
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--- a/block/gluster.c
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+++ b/block/gluster.c
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@@ -20,6 +20,11 @@
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#include "qemu/sockets.h"
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#include "qemu/uri.h"
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+#ifdef CONFIG_GLUSTERFS_FTRUNCATE_HAS_STAT
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+# define glfs_ftruncate(fd, offset) glfs_ftruncate(fd, offset, NULL, NULL)
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+#endif
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+
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+
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typedef struct GlusterAIOCB {
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BlockDriverAIOCB common;
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int64_t size;
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diff --git a/configure b/configure
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index 5877e82..70fd06f 100755
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--- a/configure
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+++ b/configure
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@@ -243,6 +243,7 @@ seccomp=""
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glusterfs=""
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glusterfs_discard="no"
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virtio_blk_data_plane=""
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+glusterfs_ftruncate_has_stat="no"
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gtk=""
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gtkabi="2.0"
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tpm="no"
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@@ -2748,6 +2749,19 @@ EOF
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if $pkg_config --atleast-version=5 glusterfs-api >/dev/null 2>&1; then
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glusterfs_discard="yes"
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fi
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+ cat > $TMPC << EOF
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+#include <glusterfs/api/glfs.h>
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+
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+int
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+main(void)
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+{
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+ /* new glfs_ftruncate() passes two additional args */
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+ return glfs_ftruncate(NULL, 0, NULL, NULL);
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+}
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+EOF
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+ if compile_prog "$glusterfs_cflags" "$glusterfs_libs" ; then
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+ glusterfs_ftruncate_has_stat="yes"
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+ fi
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else
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if test "$glusterfs" = "yes" ; then
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feature_not_found "GlusterFS backend support"
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@@ -4178,6 +4192,10 @@ if test "$live_block_ops" = "yes" ; then
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echo "CONFIG_LIVE_BLOCK_OPS=y" >> $config_host_mak
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fi
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+if test "$glusterfs_ftruncate_has_stat" = "yes" ; then
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+ echo "CONFIG_GLUSTERFS_FTRUNCATE_HAS_STAT=y" >> $config_host_mak
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+fi
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+
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if test "$live_block_migration" = "yes" ; then
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echo "CONFIG_LIVE_BLOCK_MIGRATION=y" >> $config_host_mak
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fi
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--
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1.8.3.1
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