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| author | Heiko Carstens <hca@linux.ibm.com> | 2021-02-17 09:13:02 +0300 |
|---|---|---|
| committer | Vasily Gorbik <gor@linux.ibm.com> | 2021-02-24 02:31:22 +0300 |
| commit | 62c8dca9e194326802b43c60763f856d782b225c (patch) | |
| tree | 360fe02c74850482dfa203e4dc2fe36df9195a10 /arch/s390 | |
| parent | 588a079ebd6297dc225c8bba717a71a8065e1a4b (diff) | |
| download | linux-62c8dca9e194326802b43c60763f856d782b225c.tar.xz | |
s390/smp: __smp_rescan_cpus() - move cpumask away from stack
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>
Diffstat (limited to 'arch/s390')
| -rw-r--r-- | arch/s390/kernel/smp.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c index 9fa85c927a0c..3d838b7bbb3b 100644 --- a/arch/s390/kernel/smp.c +++ b/arch/s390/kernel/smp.c @@ -775,7 +775,7 @@ static int smp_add_core(struct sclp_core_entry *core, cpumask_t *avail, static int __smp_rescan_cpus(struct sclp_core_info *info, bool early) { struct sclp_core_entry *core; - cpumask_t avail; + static cpumask_t avail; bool configured; u16 core_id; int nr, i; |