gluster: Add discard support for GlusterFS block driver.
Implement bdrv_aio_discard for gluster.
Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
diff --git a/configure b/configure
index cf13493..7c45db2 100755
--- a/configure
+++ b/configure
@@ -237,6 +237,7 @@
coroutine=""
seccomp=""
glusterfs=""
+glusterfs_discard="no"
virtio_blk_data_plane=""
gtk=""
gtkabi="2.0"
@@ -2577,6 +2578,9 @@
CFLAGS="$CFLAGS $glusterfs_cflags"
libs_tools="$glusterfs_libs $libs_tools"
libs_softmmu="$glusterfs_libs $libs_softmmu"
+ if $pkg_config --atleast-version=5 glusterfs-api >/dev/null 2>&1; then
+ glusterfs_discard="yes"
+ fi
else
if test "$glusterfs" = "yes" ; then
feature_not_found "GlusterFS backend support"
@@ -3964,6 +3968,10 @@
echo "CONFIG_GLUSTERFS=y" >> $config_host_mak
fi
+if test "$glusterfs_discard" = "yes" ; then
+ echo "CONFIG_GLUSTERFS_DISCARD=y" >> $config_host_mak
+fi
+
if test "$libssh2" = "yes" ; then
echo "CONFIG_LIBSSH2=y" >> $config_host_mak
fi
