qemu-kvm/kvm-block-mark-bdrv_parent_change_aio_context-GRAPH_RDLO.patch
Miroslav Rezanina ebd0a23ab5 * Mon Jul 28 2025 Miroslav Rezanina <mrezanin@redhat.com> - 10.0.0-8
- kvm-migration-multifd-move-macros-to-multifd-header.patch [RHEL-59697]
- kvm-migration-refactor-channel-discovery-mechanism.patch [RHEL-59697]
- kvm-migration-Add-save_postcopy_prepare-savevm-handler.patch [RHEL-59697]
- kvm-migration-ram-Implement-save_postcopy_prepare.patch [RHEL-59697]
- kvm-tests-qtest-migration-consolidate-set-capabilities.patch [RHEL-59697]
- kvm-migration-write-zero-pages-when-postcopy-enabled.patch [RHEL-59697]
- kvm-migration-enable-multifd-and-postcopy-together.patch [RHEL-59697]
- kvm-migration-Add-qtest-for-migration-over-RDMA.patch [RHEL-59697]
- kvm-qtest-migration-rdma-Enforce-RLIMIT_MEMLOCK-128MB-re.patch [RHEL-59697]
- kvm-qtest-migration-rdma-Add-test-for-rdma-migration-wit.patch [RHEL-59697]
- kvm-tests-qtest-migration-add-postcopy-tests-with-multif.patch [RHEL-59697]
- kvm-file-posix-Fix-aio-threads-performance-regression-af.patch [RHEL-96854]
- kvm-block-remove-outdated-comments-about-AioContext-lock.patch [RHEL-88561]
- kvm-block-move-drain-outside-of-read-locked-bdrv_reopen_.patch [RHEL-88561]
- kvm-block-snapshot-move-drain-outside-of-read-locked-bdr.patch [RHEL-88561]
- kvm-block-move-drain-outside-of-read-locked-bdrv_inactiv.patch [RHEL-88561]
- kvm-block-mark-bdrv_parent_change_aio_context-GRAPH_RDLO.patch [RHEL-88561]
- kvm-block-mark-change_aio_ctx-callback-and-instances-as-.patch [RHEL-88561]
- kvm-block-mark-bdrv_child_change_aio_context-GRAPH_RDLOC.patch [RHEL-88561]
- kvm-block-move-drain-outside-of-bdrv_change_aio_context-.patch [RHEL-88561]
- kvm-block-move-drain-outside-of-bdrv_try_change_aio_cont.patch [RHEL-88561]
- kvm-block-move-drain-outside-of-bdrv_attach_child_common.patch [RHEL-88561]
- kvm-block-move-drain-outside-of-bdrv_set_backing_hd_drai.patch [RHEL-88561]
- kvm-block-move-drain-outside-of-bdrv_root_attach_child.patch [RHEL-88561]
- kvm-block-move-drain-outside-of-bdrv_attach_child.patch [RHEL-88561]
- kvm-block-move-drain-outside-of-quorum_add_child.patch [RHEL-88561]
- kvm-block-move-drain-outside-of-bdrv_root_unref_child.patch [RHEL-88561]
- kvm-block-move-drain-outside-of-quorum_del_child.patch [RHEL-88561]
- kvm-blockdev-drain-while-unlocked-in-internal_snapshot_a.patch [RHEL-88561]
- kvm-blockdev-drain-while-unlocked-in-external_snapshot_a.patch [RHEL-88561]
- kvm-block-mark-bdrv_drained_begin-and-friends-as-GRAPH_U.patch [RHEL-88561]
- kvm-iotests-graph-changes-while-io-remove-image-file-aft.patch [RHEL-88561]
- kvm-iotests-graph-changes-while-io-add-test-case-with-re.patch [RHEL-88561]
- Resolves: RHEL-59697
  (Allow multifd+postcopy features being enabled together, but only use multifd during precopy )
- Resolves: RHEL-96854
  (Performance Degradation(aio=threads) between Upstream Commit b75c5f9 and 984a32f)
- Resolves: RHEL-88561
  (qemu graph deadlock during job-dismiss)
2025-07-28 02:29:30 -04:00

50 lines
1.9 KiB
Diff

From 191a72ef2a40d7bd14c5ad3745f1dfccbbf95817 Mon Sep 17 00:00:00 2001
From: Fiona Ebner <f.ebner@proxmox.com>
Date: Fri, 30 May 2025 17:10:42 +0200
Subject: [PATCH 17/33] block: mark bdrv_parent_change_aio_context()
GRAPH_RDLOCK
RH-Author: Kevin Wolf <kwolf@redhat.com>
RH-MergeRequest: 393: block: do not drain while holding the graph lock
RH-Jira: RHEL-88561
RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
RH-Acked-by: Hanna Czenczek <hreitz@redhat.com>
RH-Commit: [5/21] e80d701ce609e823f85465a3433324cbf077b3b9 (kmwolf/centos-qemu-kvm)
This is a small step in preparation to mark bdrv_drained_begin() as
GRAPH_UNLOCKED. More concretely, it allows marking the
change_aio_ctx() callback GRAPH_RDLOCK_PTR, which is the next step.
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Message-ID: <20250530151125.955508-6-f.ebner@proxmox.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
(cherry picked from commit 3758733959af93b5eb3283659d868ad5b24152b4)
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
---
block.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/block.c b/block.c
index e340bac177..18a6be3bd6 100644
--- a/block.c
+++ b/block.c
@@ -7575,10 +7575,10 @@ typedef struct BdrvStateSetAioContext {
BlockDriverState *bs;
} BdrvStateSetAioContext;
-static bool bdrv_parent_change_aio_context(BdrvChild *c, AioContext *ctx,
- GHashTable *visited,
- Transaction *tran,
- Error **errp)
+static bool GRAPH_RDLOCK
+bdrv_parent_change_aio_context(BdrvChild *c, AioContext *ctx,
+ GHashTable *visited, Transaction *tran,
+ Error **errp)
{
GLOBAL_STATE_CODE();
if (g_hash_table_contains(visited, c)) {
--
2.39.3