]> git.hungrycats.org Git - linux/commit
printk: Update @console_may_schedule in console_trylock_spinning()
authorJohn Ogness <john.ogness@linutronix.de>
Mon, 26 Feb 2024 12:01:24 +0000 (13:07 +0106)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 3 Apr 2024 13:11:43 +0000 (15:11 +0200)
commitde70fa0ae001084b80e2f8872f0c965e1ee1fce9
tree4e9812fb5d4c5b603aa1af906c3f21551de740d4
parent810aee8f1905473cc9020e05ad0f9b947d23eb4e
printk: Update @console_may_schedule in console_trylock_spinning()

[ Upstream commit 8076972468584d4a21dab9aa50e388b3ea9ad8c7 ]

console_trylock_spinning() may takeover the console lock from a
schedulable context. Update @console_may_schedule to make sure it
reflects a trylock acquire.

Reported-by: Mukesh Ojha <quic_mojha@quicinc.com>
Closes: https://lore.kernel.org/lkml/20240222090538.23017-1-quic_mojha@quicinc.com
Fixes: dbdda842fe96 ("printk: Add console owner and waiter logic to load balance console writes")
Signed-off-by: John Ogness <john.ogness@linutronix.de>
Reviewed-by: Mukesh Ojha <quic_mojha@quicinc.com>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/875xybmo2z.fsf@jogness.linutronix.de
Signed-off-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
kernel/printk/printk.c