From: Sasha Levin <sashal@kernel.org>
To: stable@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>,
Sasha Levin <sashal@kernel.org>
Subject: [PATCH AUTOSEL 4.14 07/15] Input: uinput - add a schedule point in uinput_inject_events()
Date: Mon, 22 Oct 2018 06:20:18 -0400 [thread overview]
Message-ID: <20181022102026.40869-7-sashal@kernel.org> (raw)
In-Reply-To: <20181022102026.40869-1-sashal@kernel.org>
From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
[ Upstream commit cecf10704899467a787975e3d94a1f0129b9688e ]
Large writes to uinput interface may cause rcu stalls. Let's add
cond_resched() to the loop to avoid this.
Reviewed-by: Paul E. McKenney <paulmck@linux.ibm.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/input/misc/uinput.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c
index 443151de90c6..13d17e85f2cf 100644
--- a/drivers/input/misc/uinput.c
+++ b/drivers/input/misc/uinput.c
@@ -561,6 +561,7 @@ static ssize_t uinput_inject_events(struct uinput_device *udev,
input_event(udev->dev, ev.type, ev.code, ev.value);
bytes += input_event_size();
+ cond_resched();
}
return bytes;
--
2.17.1
next prev parent reply other threads:[~2018-10-22 10:20 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-22 10:20 [PATCH AUTOSEL 4.14 01/15] ARM: dts: imx53-qsb: disable 1.2GHz OPP Sasha Levin
2018-10-22 10:20 ` [PATCH AUTOSEL 4.14 02/15] s390/hibernate: fix error handling when suspend cpu != resume cpu Sasha Levin
2018-10-26 9:05 ` Pavel Machek
2018-10-26 9:22 ` Greg KH
2018-10-26 10:15 ` Pavel Machek
2018-10-26 11:09 ` Sasha Levin
2018-10-26 12:18 ` Gerald Schaefer
2018-10-22 10:20 ` [PATCH AUTOSEL 4.14 03/15] Input: i8042 - enable keyboard wakeups by default when s2idle is used Sasha Levin
2018-10-26 9:04 ` Pavel Machek
2018-10-26 10:56 ` Sasha Levin
2018-10-22 10:20 ` [PATCH AUTOSEL 4.14 04/15] Input: mousedev - add a schedule point in mousedev_write() Sasha Levin
2018-10-22 10:20 ` [PATCH AUTOSEL 4.14 05/15] perf python: Use -Wno-redundant-decls to build with PYTHON=python3 Sasha Levin
2018-10-22 10:20 ` [PATCH AUTOSEL 4.14 06/15] Input: evdev - add a schedule point in evdev_write() Sasha Levin
2018-10-22 10:20 ` Sasha Levin [this message]
2018-10-22 10:20 ` [PATCH AUTOSEL 4.14 08/15] rxrpc: Don't check RXRPC_CALL_TX_LAST after calling rxrpc_rotate_tx_window() Sasha Levin
2018-10-22 10:20 ` [PATCH AUTOSEL 4.14 09/15] rxrpc: Only take the rwind and mtu values from latest ACK Sasha Levin
2018-10-22 10:20 ` [PATCH AUTOSEL 4.14 10/15] rxrpc: Fix connection-level abort handling Sasha Levin
2018-10-22 10:20 ` [PATCH AUTOSEL 4.14 11/15] net: ena: fix warning in rmmod caused by double iounmap Sasha Levin
2018-10-22 10:20 ` [PATCH AUTOSEL 4.14 12/15] net: ena: fix NULL dereference due to untimely napi initialization Sasha Levin
2018-10-22 10:20 ` [PATCH AUTOSEL 4.14 13/15] libertas: call into generic suspend code before turning off power Sasha Levin
2018-10-22 10:20 ` [PATCH AUTOSEL 4.14 14/15] selftests: rtnetlink.sh explicitly requires bash Sasha Levin
2018-10-22 10:20 ` [PATCH AUTOSEL 4.14 15/15] fs/fat/fatent.c: add cond_resched() to fat_count_free_clusters() Sasha Levin
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