Commit-ID: 4d13a06d54c415238325b0fe2c14f1052da4512f Gitweb: http://git.kernel.org/tip/4d13a06d54c415238325b0fe2c14f1052da4512f Author: Viresh Kumar <viresh.ku...@linaro.org> AuthorDate: Thu, 13 Apr 2017 14:45:48 +0530 Committer: Ingo Molnar <mi...@kernel.org> CommitDate: Thu, 10 Aug 2017 12:18:13 +0200
sched/topology: Drop memset() from init_rootdomain() There are only two callers of init_rootdomain(). One of them passes a global to it and another one sends dynamically allocated root-domain. There is no need to memset the root-domain in the first case as the structure is already reset. Update alloc_rootdomain() to allocate the memory with kzalloc() and remove the memset() call from init_rootdomain(). Signed-off-by: Viresh Kumar <viresh.ku...@linaro.org> Signed-off-by: Peter Zijlstra (Intel) <pet...@infradead.org> Cc: Linus Torvalds <torva...@linux-foundation.org> Cc: Peter Zijlstra <pet...@infradead.org> Cc: Thomas Gleixner <t...@linutronix.de> Cc: Vincent Guittot <vincent.guit...@linaro.org> Cc: linaro-ker...@lists.linaro.org Link: http://lkml.kernel.org/r/fc2f6cc90b098040970c85a97046512572d765bc.1492065513.git.viresh.ku...@linaro.org Signed-off-by: Ingo Molnar <mi...@kernel.org> --- kernel/sched/topology.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/kernel/sched/topology.c b/kernel/sched/topology.c index 79895ae..216fee0 100644 --- a/kernel/sched/topology.c +++ b/kernel/sched/topology.c @@ -261,8 +261,6 @@ void rq_attach_root(struct rq *rq, struct root_domain *rd) static int init_rootdomain(struct root_domain *rd) { - memset(rd, 0, sizeof(*rd)); - if (!zalloc_cpumask_var(&rd->span, GFP_KERNEL)) goto out; if (!zalloc_cpumask_var(&rd->online, GFP_KERNEL)) @@ -311,7 +309,7 @@ static struct root_domain *alloc_rootdomain(void) { struct root_domain *rd; - rd = kmalloc(sizeof(*rd), GFP_KERNEL); + rd = kzalloc(sizeof(*rd), GFP_KERNEL); if (!rd) return NULL;
