[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [xen master] xen/sched: create public function for cpupools creation
commit a32769dd2469ee4aeaa6371b7a4e1e52d0e0226e Author: Luca Fancellu <luca.fancellu@xxxxxxx> AuthorDate: Fri May 6 13:00:07 2022 +0100 Commit: Stefano Stabellini <stefano.stabellini@xxxxxxxxxx> CommitDate: Mon May 9 13:32:08 2022 -0700 xen/sched: create public function for cpupools creation Create new public function to create cpupools, can take as parameter the scheduler id or a negative value that means the default Xen scheduler will be used. Signed-off-by: Luca Fancellu <luca.fancellu@xxxxxxx> Reviewed-by: Juergen Gross <jgross@xxxxxxxx> --- xen/common/sched/cpupool.c | 15 +++++++++++++++ xen/include/xen/sched.h | 16 ++++++++++++++++ 2 files changed, 31 insertions(+) diff --git a/xen/common/sched/cpupool.c b/xen/common/sched/cpupool.c index a6da497050..89a891af70 100644 --- a/xen/common/sched/cpupool.c +++ b/xen/common/sched/cpupool.c @@ -1219,6 +1219,21 @@ static void cpupool_hypfs_init(void) #endif /* CONFIG_HYPFS */ +struct cpupool *__init cpupool_create_pool(unsigned int pool_id, int sched_id) +{ + struct cpupool *pool; + + if ( sched_id < 0 ) + sched_id = scheduler_get_default()->sched_id; + + pool = cpupool_create(pool_id, sched_id); + + BUG_ON(IS_ERR(pool)); + cpupool_put(pool); + + return pool; +} + static int __init cf_check cpupool_init(void) { unsigned int cpu; diff --git a/xen/include/xen/sched.h b/xen/include/xen/sched.h index 6b724e7947..a0c87169d9 100644 --- a/xen/include/xen/sched.h +++ b/xen/include/xen/sched.h @@ -1158,6 +1158,22 @@ int cpupool_move_domain(struct domain *d, struct cpupool *c); int cpupool_do_sysctl(struct xen_sysctl_cpupool_op *op); unsigned int cpupool_get_id(const struct domain *d); const cpumask_t *cpupool_valid_cpus(const struct cpupool *pool); + +/* + * cpupool_create_pool - Creates a cpupool + * @pool_id: id of the pool to be created + * @sched_id: id of the scheduler to be used for the pool + * + * Creates a cpupool with pool_id id. + * The sched_id parameter identifies the scheduler to be used, if it is + * negative, the default scheduler of Xen will be used. + * + * returns: + * pointer to the struct cpupool just created, or Xen will panic in case of + * error + */ +struct cpupool *cpupool_create_pool(unsigned int pool_id, int sched_id); + extern void cf_check dump_runq(unsigned char key); void arch_do_physinfo(struct xen_sysctl_physinfo *pi); -- generated by git-patchbot for /home/xen/git/xen.git#master
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