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(parent: 219fc4b) | patch
s390/smp: __smp_rescan_cpus() - move cpumask away from stack
authorHeiko Carstens <hca@linux.ibm.com>
Wed, 17 Feb 2021 06:13:02 +0000 (07:13 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 17 Mar 2021 16:06:25 +0000 (17:06 +0100)
commite4b98e2260fd47208fda30d5e182d790941a9332
tree57d5975a4bfe65f69ff67a947c8a89a229891db4tree | snapshot
parent219fc4b300582248beaa7a803365af8a25af8c64commit | diff
s390/smp: __smp_rescan_cpus() - move cpumask away from stack

[ Upstream commit 62c8dca9e194326802b43c60763f856d782b225c ]

Avoid a potentially large stack frame and overflow by making
"cpumask_t avail" a static variable. There is no concurrent
access due to the existing locking.

Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
arch/s390/kernel/smp.c diff | blob | history
Domain: System / Kernel;