]> git.proxmox.com Git - pve-qemu.git/blobdiff - debian/patches/extra/0004-linux-aio-fix-unbalanced-plugged-counter-in-laio_io_.patch
update submodule and patches to 7.1.0
[pve-qemu.git] / debian / patches / extra / 0004-linux-aio-fix-unbalanced-plugged-counter-in-laio_io_.patch
diff --git a/debian/patches/extra/0004-linux-aio-fix-unbalanced-plugged-counter-in-laio_io_.patch b/debian/patches/extra/0004-linux-aio-fix-unbalanced-plugged-counter-in-laio_io_.patch
deleted file mode 100644 (file)
index cf130ac..0000000
+++ /dev/null
@@ -1,44 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: Stefan Hajnoczi <stefanha@redhat.com>
-Date: Thu, 9 Jun 2022 17:47:11 +0100
-Subject: [PATCH] linux-aio: fix unbalanced plugged counter in laio_io_unplug()
-
-Every laio_io_plug() call has a matching laio_io_unplug() call. There is
-a plugged counter that tracks the number of levels of plugging and
-allows for nesting.
-
-The plugged counter must reflect the balance between laio_io_plug() and
-laio_io_unplug() calls accurately. Otherwise I/O stalls occur since
-io_submit(2) calls are skipped while plugged.
-
-Reported-by: Nikolay Tenev <nt@storpool.com>
-Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
-Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
-Message-id: 20220609164712.1539045-2-stefanha@redhat.com
-Cc: Stefano Garzarella <sgarzare@redhat.com>
-Fixes: 68d7946648 ("linux-aio: add `dev_max_batch` parameter to laio_io_unplug()")
-[Stefano Garzarella suggested adding a Fixes tag.
---Stefan]
-Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
-(cherry-picked from commit f387cac5af030a58ac5a0dacf64cab5e5a4fe5c7)
-Signed-off-by: Fabian Ebner <f.ebner@proxmox.com>
----
- block/linux-aio.c | 4 +++-
- 1 file changed, 3 insertions(+), 1 deletion(-)
-
-diff --git a/block/linux-aio.c b/block/linux-aio.c
-index 4c423fcccf..6078da7e42 100644
---- a/block/linux-aio.c
-+++ b/block/linux-aio.c
-@@ -363,8 +363,10 @@ void laio_io_unplug(BlockDriverState *bs, LinuxAioState *s,
-                     uint64_t dev_max_batch)
- {
-     assert(s->io_q.plugged);
-+    s->io_q.plugged--;
-+
-     if (s->io_q.in_queue >= laio_max_batch(s, dev_max_batch) ||
--        (--s->io_q.plugged == 0 &&
-+        (!s->io_q.plugged &&
-          !s->io_q.blocked && !QSIMPLEQ_EMPTY(&s->io_q.pending))) {
-         ioq_submit(s);
-     }