61 lines
2.1 KiB
Diff
61 lines
2.1 KiB
Diff
From d580b83d9eda7802ffa3890ea8641793fe78937c Mon Sep 17 00:00:00 2001
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From: Kevin Wolf <kwolf@redhat.com>
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Date: Wed, 31 Jul 2024 14:32:05 +0200
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Subject: [PATCH 094/100] scsi-block: Don't skip callback for sgio error
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status/driver_status
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RH-Author: Kevin Wolf <kwolf@redhat.com>
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RH-MergeRequest: 261: scsi-block: Fix error handling with r/werror=stop
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RH-Jira: RHEL-50000
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RH-Acked-by: Hanna Czenczek <hreitz@redhat.com>
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RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
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RH-Commit: [2/4] 1fee1b21dae314f4f34c88f2d2fabd7af011404a (kmwolf/centos-qemu-kvm)
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Instead of calling into scsi_handle_rw_error() directly from
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scsi_block_sgio_complete() and skipping the normal callback, go through
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the normal cleanup path by calling the callback with a positive error
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value.
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The important difference here is not only that the code path is cleaner,
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but that the callbacks set r->req.aiocb = NULL. If we skip setting this
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and the error action is BLOCK_ERROR_ACTION_STOP, resuming the VM runs
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into an assertion failure in scsi_read_data() or scsi_write_data()
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because the dangling aiocb pointer is unexpected.
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Fixes: a108557bbf ("scsi: inline sg_io_sense_from_errno() into the callers.")
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Buglink: https://issues.redhat.com/browse/RHEL-50000
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Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Acked-by: Paolo Bonzini <pbonzini@redhat.com>
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Message-ID: <20240731123207.27636-3-kwolf@redhat.com>
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Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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(cherry picked from commit 622a70161ac258e4a166a7dca4b5be267e0652d9)
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Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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---
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hw/scsi/scsi-disk.c | 10 ----------
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1 file changed, 10 deletions(-)
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diff --git a/hw/scsi/scsi-disk.c b/hw/scsi/scsi-disk.c
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index bed2c8746c..e7f57f3230 100644
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--- a/hw/scsi/scsi-disk.c
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+++ b/hw/scsi/scsi-disk.c
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@@ -2804,16 +2804,6 @@ static void scsi_block_sgio_complete(void *opaque, int ret)
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} else {
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ret = io_hdr->status;
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}
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-
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- if (ret > 0) {
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- if (scsi_handle_rw_error(r, ret, true)) {
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- scsi_req_unref(&r->req);
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- return;
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- }
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-
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- /* Ignore error. */
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- ret = 0;
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- }
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}
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req->cb(req->cb_opaque, ret);
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--
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2.39.3
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