qemu/vhost-user-blk-reconnect-on-any-error-during-realize.patch

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QEMU update to version 6.2.0-86(master) - vdpa: move memory listener to the realize stage - vdpa: implement vdpa device migration - vhost: implement post resume bh - vhost: implement migration state notifier for vdpa device - vhost: implement savevm_hanlder for vdpa device - vhost: implement vhost_vdpa_device_suspend/resume - vhost: implement vhost-vdpa suspend/resume - vhost: add vhost_dev_suspend/resume_op - vhost: introduce bytemap for vhost backend logging - vhost-vdpa: add migration log ops for VhostOps - vhost-vdpa: add VHOST_BACKEND_F_BYTEMAPLOG - vhost: fix null pointer access - ui/gtk: prevent ui lock up when dpy_gl_update called again before current draw event occurs - hw/usb: dev-mtp: Use g_mkdir() - target/ppc/cpu-models: Remove the "default" CPU alias - hw/intc/arm_gicv3: ICC_PMR_EL1 high bits should be RAZ - Fixed a QEMU hang when guest poweroff in COLO mode - migration/colo: More accurate update checkpoint time - scripts/entitlement.sh: Use backward-compatible cp flags - block/nvme: fix infinite loop in nvme_free_req_queue_cb() - hw/net: npcm7xx_emc fix missing queue_flush - Add dummy Aspeed AST2600 Display Port MCU (DPMCU) - hw/arm: ast2600: Fix address mapping of second SPI controller - vhost-user-blk: reconnect on any error during realize - vhost-user-blk: propagate error return from generic vhost - hw/riscv: boot: Reduce FDT address alignment constraints - Revert "hw/virtio/virtio-iommu-pci: Enforce the device is plugged on the root bus" - Fix STM32F2XX USART data register readout - block: use 'unsigned' for in_flight field on driver state - sphinx: change default language to 'en' - tests/qtest: Fix two format strings - trivial typos: namesapce - hw/ide/atapi.c: Correct typos (CD-CDROM -> CD-ROM) - hw/virtio/virtio-iommu-pci: Enforce the device is plugged on the root bus - hw/display/next-fb: Fix comment typo - xen/pass-through: merge emulated bits correctly mainline inclusion commit be9c61da9fc57eb7d293f380d0805ca6f46c2657 category: bugfix - tests/qtest/migration-test.c: spelling fix: bandwith - target/i386/cpu: Improve error message for property "vendor" - balloon: Fix a misleading error message - target/arm: Don't set syndrome ISS for loads and stores with writeback mainline inclusion commit 53ae2fdef1f5661cbaa2ea571c517f98e6041cb8 category: bugfix - disas/hppa: Show hexcode of instruction along with disassembly - tcg/loongarch64: Fix tcg_out_mov() Aborted - ui/qmp-cmds: Improve two error messages - qga: Improve guest-exec-status error message - hmp: Improve sync-profile error message - spapr/pci: Correct "does not support hotplugging error messages - xen/pass-through: don't create needless register group mainline inclusion commit c0e86b7624cb9d6db03e0d48cf82659e5b89a6a6 category: bugfix Signed-off-by: Jiabo Feng <fengjiabo1@huawei.com>
2023-12-05 18:00:19 +08:00
From a64c32378bd5a1119ea69d8c29f93b6365d3346b Mon Sep 17 00:00:00 2001
From: Luo Yifan <luoyifan_yewu@cmss.chinamobile.com>
Date: Mon, 4 Dec 2023 11:11:29 +0800
Subject: [PATCH] vhost-user-blk: reconnect on any error during realize
cherry picked from commit b7107e758f4ecdd8f07ede3f093cbbfdb623e865
vhost-user-blk realize only attempts to reconnect if the previous
connection attempt failed on "a problem with the connection and not an
error related to the content (which would fail again the same way in the
next attempt)".
However this distinction is very subtle, and may be inadvertently broken
if the code changes somewhere deep down the stack and a new error gets
propagated up to here.
OTOH now that the number of reconnection attempts is limited it seems
harmless to try reconnecting on any error.
So relax the condition of whether to retry connecting to check for any
error.
This patch amends a527e312b5 "vhost-user-blk: Implement reconnection
during realize".
Signed-off-by: Roman Kagan <rvkagan@yandex-team.ru>
Message-Id: <20211111153354.18807-2-rvkagan@yandex-team.ru>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Raphael Norwitz <raphael.norwitz@nutanix.com>
Signed-off-by: Luo Yifan <luoyifan_yewu@cmss.chinamobile.com>
---
hw/block/vhost-user-blk.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/hw/block/vhost-user-blk.c b/hw/block/vhost-user-blk.c
index eddc5588fa..a2236c5239 100644
--- a/hw/block/vhost-user-blk.c
+++ b/hw/block/vhost-user-blk.c
@@ -516,7 +516,7 @@ static void vhost_user_blk_device_realize(DeviceState *dev, Error **errp)
*errp = NULL;
}
ret = vhost_user_blk_realize_connect(s, errp);
- } while (ret == -EPROTO && retries--);
+ } while (ret < 0 && retries--);
if (ret < 0) {
goto virtio_err;
--
2.27.0