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block-backend: Enable retry action on errors

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Enable retry action when backend's retry timer is available. It would
trigger the timer to do device specific retry action.

Signed-off-by: Jiahui Cen <cenjiahui(a)huawei.com>
Signed-off-by: Ying Fang <fangying1(a)huawei.com>
This commit is contained in:
Huawei Technologies Co., Ltd 2021-01-21 15:46:48 +08:00 committed by Euler Robot
parent 788fb23e33
commit c5a58a3c03
1 changed files with 42 additions and 0 deletions
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42
block-backend-Enable-retry-action-on-errors.patch Normal file
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@ -0,0 +1,42 @@
From 8df36cddd1e5e2b3c3598c83a70e8cbb81c26cec Mon Sep 17 00:00:00 2001
From: Jiahui Cen <cenjiahui@huawei.com>
Date: Thu, 21 Jan 2021 15:46:48 +0800
Subject: [PATCH] block-backend: Enable retry action on errors
Enable retry action when backend's retry timer is available. It would
trigger the timer to do device specific retry action.
Signed-off-by: Jiahui Cen <cenjiahui(a)huawei.com>
Signed-off-by: Ying Fang <fangying1(a)huawei.com>
---
block/block-backend.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/block/block-backend.c b/block/block-backend.c
index b8f535a5fd..11f8ff4301 100644
--- a/block/block-backend.c
+++ b/block/block-backend.c
@@ -1660,6 +1660,9 @@ BlockErrorAction blk_get_error_action(BlockBackend *blk, bool is_read,
return BLOCK_ERROR_ACTION_REPORT;
case BLOCKDEV_ON_ERROR_IGNORE:
return BLOCK_ERROR_ACTION_IGNORE;
+ case BLOCKDEV_ON_ERROR_RETRY:
+ return (blk->retry_timer) ?
+ BLOCK_ERROR_ACTION_RETRY : BLOCK_ERROR_ACTION_REPORT;
case BLOCKDEV_ON_ERROR_AUTO:
default:
abort();
@@ -1707,6 +1710,10 @@ void blk_error_action(BlockBackend *blk, BlockErrorAction action,
qemu_system_vmstop_request_prepare();
send_qmp_error_event(blk, action, is_read, error);
qemu_system_vmstop_request(RUN_STATE_IO_ERROR);
+ } else if (action == BLOCK_ERROR_ACTION_RETRY) {
+ timer_mod(blk->retry_timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME) +
+ blk->retry_interval);
+ send_qmp_error_event(blk, action, is_read, error);
} else {
send_qmp_error_event(blk, action, is_read, error);
}
--
2.27.0