diff options
Diffstat (limited to 'sys/kern')
| -rw-r--r-- | sys/kern/kern_cpuset.c | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/sys/kern/kern_cpuset.c b/sys/kern/kern_cpuset.c index 8f4014f..2ef1fa7 100644 --- a/sys/kern/kern_cpuset.c +++ b/sys/kern/kern_cpuset.c @@ -303,7 +303,7 @@ cpuset_create(struct cpuset **setp, struct cpuset *parent, const cpuset_t *mask) * empty as well as RDONLY flags. */ static int -cpuset_testupdate(struct cpuset *set, cpuset_t *mask) +cpuset_testupdate(struct cpuset *set, cpuset_t *mask, int check_mask) { struct cpuset *nset; cpuset_t newmask; @@ -312,13 +312,16 @@ cpuset_testupdate(struct cpuset *set, cpuset_t *mask) mtx_assert(&cpuset_lock, MA_OWNED); if (set->cs_flags & CPU_SET_RDONLY) return (EPERM); - if (!CPU_OVERLAP(&set->cs_mask, mask)) - return (EDEADLK); - CPU_COPY(&set->cs_mask, &newmask); - CPU_AND(&newmask, mask); + if (check_mask) { + if (!CPU_OVERLAP(&set->cs_mask, mask)) + return (EDEADLK); + CPU_COPY(&set->cs_mask, &newmask); + CPU_AND(&newmask, mask); + } else + CPU_COPY(mask, &newmask); error = 0; LIST_FOREACH(nset, &set->cs_children, cs_siblings) - if ((error = cpuset_testupdate(nset, &newmask)) != 0) + if ((error = cpuset_testupdate(nset, &newmask, 1)) != 0) break; return (error); } @@ -370,11 +373,11 @@ cpuset_modify(struct cpuset *set, cpuset_t *mask) if (root && !CPU_SUBSET(&root->cs_mask, mask)) return (EINVAL); mtx_lock_spin(&cpuset_lock); - error = cpuset_testupdate(set, mask); + error = cpuset_testupdate(set, mask, 0); if (error) goto out; - cpuset_update(set, mask); CPU_COPY(mask, &set->cs_mask); + cpuset_update(set, mask); out: mtx_unlock_spin(&cpuset_lock); |
