5f95659303
- kvm-migration-Fix-race-that-dest-preempt-thread-close-to.patch [RHEL-11219] - kvm-migration-Fix-possible-race-when-setting-rp_state.er.patch [RHEL-11219] - kvm-migration-Fix-possible-races-when-shutting-down-the-.patch [RHEL-11219] - kvm-migration-Fix-possible-race-when-shutting-down-to_ds.patch [RHEL-11219] - kvm-migration-Remove-redundant-cleanup-of-postcopy_qemuf.patch [RHEL-11219] - kvm-migration-Consolidate-return-path-closing-code.patch [RHEL-11219] - kvm-migration-Replace-the-return-path-retry-logic.patch [RHEL-11219] - kvm-migration-Move-return-path-cleanup-to-main-migration.patch [RHEL-11219] - kvm-file-posix-Clear-bs-bl.zoned-on-error.patch [RHEL-7360] - kvm-file-posix-Check-bs-bl.zoned-for-zone-info.patch [RHEL-7360] - kvm-file-posix-Fix-zone-update-in-I-O-error-path.patch [RHEL-7360] - kvm-file-posix-Simplify-raw_co_prw-s-out-zone-code.patch [RHEL-7360] - kvm-tests-file-io-error-New-test.patch [RHEL-7360] - Resolves: RHEL-11219 (migration tests failing for RHEL 9.4 sometimes) - Resolves: RHEL-7360 (Qemu Core Dumped When Writing Larger Size Than The Size of A Data Disk)
77 lines
2.5 KiB
Diff
77 lines
2.5 KiB
Diff
From 117f325d4983bb7e40a50e51c2fe056938d5add4 Mon Sep 17 00:00:00 2001
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From: Fabiano Rosas <farosas@suse.de>
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Date: Mon, 18 Sep 2023 14:28:22 -0300
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Subject: [PATCH 08/13] migration: Move return path cleanup to main migration
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thread
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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RH-Author: Peter Xu <peterx@redhat.com>
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RH-MergeRequest: 203: migration: Fix race that dest preempt thread close too early
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RH-Jira: RHEL-11219
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RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>
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RH-Acked-by: Leonardo Brás <leobras@redhat.com>
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RH-Commit: [8/8] 3f085c4ac6c0835d35346bf0cad778c17a248daf (peterx/qemu-kvm)
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Now that the return path thread is allowed to finish during a paused
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migration, we can move the cleanup of the QEMUFiles to the main
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migration thread.
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Reviewed-by: Peter Xu <peterx@redhat.com>
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Signed-off-by: Fabiano Rosas <farosas@suse.de>
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Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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Message-ID: <20230918172822.19052-9-farosas@suse.de>
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(cherry picked from commit 36e9aab3c569d4c9ad780473596e18479838d1aa)
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Signed-off-by: Peter Xu <peterx@redhat.com>
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---
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migration/migration.c | 11 ++++++++++-
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1 file changed, 10 insertions(+), 1 deletion(-)
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diff --git a/migration/migration.c b/migration/migration.c
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index a0782c64a1..7a4c8beb5d 100644
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--- a/migration/migration.c
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+++ b/migration/migration.c
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@@ -98,6 +98,7 @@ static int migration_maybe_pause(MigrationState *s,
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int *current_active_state,
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int new_state);
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static void migrate_fd_cancel(MigrationState *s);
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+static int await_return_path_close_on_source(MigrationState *s);
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static bool migration_needs_multiple_sockets(void)
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{
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@@ -1178,6 +1179,12 @@ static void migrate_fd_cleanup(MigrationState *s)
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qemu_fclose(tmp);
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}
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+ /*
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+ * We already cleaned up to_dst_file, so errors from the return
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+ * path might be due to that, ignore them.
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+ */
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+ await_return_path_close_on_source(s);
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+
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assert(!migration_is_active(s));
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if (s->state == MIGRATION_STATUS_CANCELLING) {
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@@ -1986,7 +1993,6 @@ out:
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}
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trace_source_return_path_thread_end();
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- migration_release_dst_files(ms);
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rcu_unregister_thread();
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return NULL;
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}
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@@ -2040,6 +2046,9 @@ static int await_return_path_close_on_source(MigrationState *ms)
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ret = ms->rp_state.error;
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ms->rp_state.error = false;
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+
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+ migration_release_dst_files(ms);
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+
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trace_migration_return_path_end_after(ret);
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return ret;
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}
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--
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2.39.3
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