From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Juergen Gross <jgross@suse.com>
Subject: [PATCH 5.10 25/25] xen/events: fix setting irq affinity
Date: Thu, 15 Apr 2021 16:48:19 +0200 [thread overview]
Message-ID: <20210415144413.948817193@linuxfoundation.org> (raw)
In-Reply-To: <20210415144413.165663182@linuxfoundation.org>
From: Juergen Gross <jgross@suse.com>
The backport of upstream patch 25da4618af240fbec61 ("xen/events: don't
unmask an event channel when an eoi is pending") introduced a
regression for stable kernels 5.10 and older: setting IRQ affinity for
IRQs related to interdomain events would no longer work, as moving the
IRQ to its new cpu was not included in the irq_ack callback for those
events.
Fix that by adding the needed call.
Note that kernels 5.11 and later don't need the explicit moving of the
IRQ to the target cpu in the irq_ack callback, due to a rework of the
affinity setting in kernel 5.11.
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/xen/events/events_base.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/xen/events/events_base.c
+++ b/drivers/xen/events/events_base.c
@@ -1809,7 +1809,7 @@ static void lateeoi_ack_dynirq(struct ir
if (VALID_EVTCHN(evtchn)) {
do_mask(info, EVT_MASK_REASON_EOI_PENDING);
- event_handler_exit(info);
+ ack_dynirq(data);
}
}
@@ -1820,7 +1820,7 @@ static void lateeoi_mask_ack_dynirq(stru
if (VALID_EVTCHN(evtchn)) {
do_mask(info, EVT_MASK_REASON_EXPLICIT);
- event_handler_exit(info);
+ ack_dynirq(data);
}
}
next prev parent reply other threads:[~2021-04-15 15:13 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-15 14:47 [PATCH 5.10 00/25] 5.10.31-rc1 review Greg Kroah-Hartman
2021-04-15 14:47 ` [PATCH 5.10 01/25] interconnect: core: fix error return code of icc_link_destroy() Greg Kroah-Hartman
2021-04-15 14:47 ` [PATCH 5.10 02/25] gfs2: Flag a withdraw if init_threads() fails Greg Kroah-Hartman
2021-04-15 14:47 ` [PATCH 5.10 03/25] KVM: arm64: Hide system instruction access to Trace registers Greg Kroah-Hartman
2021-04-15 14:47 ` [PATCH 5.10 04/25] KVM: arm64: Disable guest access to trace filter controls Greg Kroah-Hartman
2021-04-15 14:47 ` [PATCH 5.10 05/25] drm/imx: imx-ldb: fix out of bounds array access warning Greg Kroah-Hartman
2021-04-15 14:48 ` [PATCH 5.10 06/25] gfs2: report "already frozen/thawed" errors Greg Kroah-Hartman
2021-04-15 14:48 ` [PATCH 5.10 07/25] ftrace: Check if pages were allocated before calling free_pages() Greg Kroah-Hartman
2021-04-15 14:48 ` [PATCH 5.10 08/25] tools/kvm_stat: Add restart delay Greg Kroah-Hartman
2021-04-15 14:48 ` [PATCH 5.10 09/25] drm/tegra: dc: Dont set PLL clock to 0Hz Greg Kroah-Hartman
2021-04-15 14:48 ` [PATCH 5.10 10/25] gpu: host1x: Use different lock classes for each client Greg Kroah-Hartman
2021-04-15 14:48 ` [PATCH 5.10 11/25] XArray: Fix splitting to non-zero orders Greg Kroah-Hartman
2021-04-15 14:48 ` [PATCH 5.10 12/25] radix tree test suite: Fix compilation Greg Kroah-Hartman
2021-04-15 15:12 ` Matthew Wilcox
2021-04-16 0:06 ` Sasha Levin
2021-04-15 14:48 ` [PATCH 5.10 13/25] block: only update parent bi_status when bio fail Greg Kroah-Hartman
2021-04-15 14:48 ` [PATCH 5.10 14/25] radix tree test suite: Register the main thread with the RCU library Greg Kroah-Hartman
2021-04-15 14:48 ` [PATCH 5.10 15/25] idr test suite: Take RCU read lock in idr_find_test_1 Greg Kroah-Hartman
2021-04-15 14:48 ` [PATCH 5.10 16/25] idr test suite: Create anchor before launching throbber Greg Kroah-Hartman
2021-04-15 14:48 ` [PATCH 5.10 17/25] null_blk: fix command timeout completion handling Greg Kroah-Hartman
2021-04-15 14:48 ` [PATCH 5.10 18/25] io_uring: dont mark S_ISBLK async work as unbounded Greg Kroah-Hartman
2021-04-15 14:48 ` [PATCH 5.10 19/25] riscv,entry: fix misaligned base for excp_vect_table Greg Kroah-Hartman
2021-04-15 14:48 ` [PATCH 5.10 20/25] block: dont ignore REQ_NOWAIT for direct IO Greg Kroah-Hartman
2021-04-15 14:48 ` [PATCH 5.10 21/25] netfilter: x_tables: fix compat match/target pad out-of-bound write Greg Kroah-Hartman
2021-04-15 14:48 ` [PATCH 5.10 22/25] perf map: Tighten snprintf() string precision to pass gcc check on some 32-bit arches Greg Kroah-Hartman
2021-04-15 14:48 ` [PATCH 5.10 23/25] net: sfp: relax bitrate-derived mode check Greg Kroah-Hartman
2021-04-15 14:48 ` [PATCH 5.10 24/25] net: sfp: cope with SFPs that set both LOS normal and LOS inverted Greg Kroah-Hartman
2021-04-15 14:48 ` Greg Kroah-Hartman [this message]
2021-04-15 19:11 ` [PATCH 5.10 00/25] 5.10.31-rc1 review Pavel Machek
2021-04-15 20:03 ` Andrei Rabusov
2021-04-15 22:42 ` Shuah Khan
2021-04-16 0:52 ` Florian Fainelli
2021-04-16 9:38 ` Naresh Kamboju
2021-04-16 19:57 ` Fox Chen
2021-04-16 20:07 ` Sudip Mukherjee
2021-04-17 1:01 ` Samuel Zou
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