qemu-kvm/SOURCES/kvm-block-gluster-limit-the-transfer-size-to-512-MiB.patch

102 lines
3.7 KiB
Diff

From 1788135e55dd9e68e54ba32582702df09819a8fe Mon Sep 17 00:00:00 2001
From: Stefano Garzarella <sgarzare@redhat.com>
Date: Tue, 16 Jul 2019 08:13:10 +0100
Subject: [PATCH 16/39] block/gluster: limit the transfer size to 512 MiB
RH-Author: Stefano Garzarella <sgarzare@redhat.com>
Message-id: <20190716081310.29528-2-sgarzare@redhat.com>
Patchwork-id: 89533
O-Subject: [RHEL-8.1.0 qemu-kvm PATCH 1/1] block/gluster: limit the transfer size to 512 MiB
Bugzilla: 1728657
RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
RH-Acked-by: Kevin Wolf <kwolf@redhat.com>
RH-Acked-by: Max Reitz <mreitz@redhat.com>
Several versions of GlusterFS (3.12? -> 6.0.1) fail when the
transfer size is greater or equal to 1024 MiB, so we are
limiting the transfer size to 512 MiB to avoid this rare issue.
Buglink: https://bugzilla.redhat.com/show_bug.cgi?id=1691320
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Niels de Vos <ndevos@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
(cherry picked from commit de23e72bb7515888fdea2a58c58a2e02370123bd)
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
block/gluster.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/block/gluster.c b/block/gluster.c
index a6ac2b1..9b29d96 100644
--- a/block/gluster.c
+++ b/block/gluster.c
@@ -9,6 +9,7 @@
*/
#include "qemu/osdep.h"
+#include "qemu/units.h"
#include <glusterfs/api/glfs.h>
#include "block/block_int.h"
#include "block/qdict.h"
@@ -41,6 +42,12 @@
#define GLUSTER_DEBUG_MAX 9
#define GLUSTER_OPT_LOGFILE "logfile"
#define GLUSTER_LOGFILE_DEFAULT "-" /* handled in libgfapi as /dev/stderr */
+/*
+ * Several versions of GlusterFS (3.12? -> 6.0.1) fail when the transfer size
+ * is greater or equal to 1024 MiB, so we are limiting the transfer size to 512
+ * MiB to avoid this rare issue.
+ */
+#define GLUSTER_MAX_TRANSFER (512 * MiB)
#define GERR_INDEX_HINT "hint: check in 'server' array index '%d'\n"
@@ -887,6 +894,11 @@ out:
return ret;
}
+static void qemu_gluster_refresh_limits(BlockDriverState *bs, Error **errp)
+{
+ bs->bl.max_transfer = GLUSTER_MAX_TRANSFER;
+}
+
static int qemu_gluster_reopen_prepare(BDRVReopenState *state,
BlockReopenQueue *queue, Error **errp)
{
@@ -1527,6 +1539,7 @@ static BlockDriver bdrv_gluster = {
.bdrv_co_pwrite_zeroes = qemu_gluster_co_pwrite_zeroes,
#endif
.bdrv_co_block_status = qemu_gluster_co_block_status,
+ .bdrv_refresh_limits = qemu_gluster_refresh_limits,
.create_opts = &qemu_gluster_create_opts,
};
@@ -1556,6 +1569,7 @@ static BlockDriver bdrv_gluster_tcp = {
.bdrv_co_pwrite_zeroes = qemu_gluster_co_pwrite_zeroes,
#endif
.bdrv_co_block_status = qemu_gluster_co_block_status,
+ .bdrv_refresh_limits = qemu_gluster_refresh_limits,
.create_opts = &qemu_gluster_create_opts,
};
@@ -1585,6 +1599,7 @@ static BlockDriver bdrv_gluster_unix = {
.bdrv_co_pwrite_zeroes = qemu_gluster_co_pwrite_zeroes,
#endif
.bdrv_co_block_status = qemu_gluster_co_block_status,
+ .bdrv_refresh_limits = qemu_gluster_refresh_limits,
.create_opts = &qemu_gluster_create_opts,
};
@@ -1620,6 +1635,7 @@ static BlockDriver bdrv_gluster_rdma = {
.bdrv_co_pwrite_zeroes = qemu_gluster_co_pwrite_zeroes,
#endif
.bdrv_co_block_status = qemu_gluster_co_block_status,
+ .bdrv_refresh_limits = qemu_gluster_refresh_limits,
.create_opts = &qemu_gluster_create_opts,
};
--
1.8.3.1