diff options
Diffstat (limited to 'mm/cma_sysfs.c')
| -rw-r--r-- | mm/cma_sysfs.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/mm/cma_sysfs.c b/mm/cma_sysfs.c index 56347d15b7e8..f50db3973171 100644 --- a/mm/cma_sysfs.c +++ b/mm/cma_sysfs.c @@ -24,6 +24,11 @@ void cma_sysfs_account_fail_pages(struct cma *cma, unsigned long nr_pages) atomic64_add(nr_pages, &cma->nr_pages_failed); } +void cma_sysfs_account_release_pages(struct cma *cma, unsigned long nr_pages) +{ + atomic64_add(nr_pages, &cma->nr_pages_released); +} + static inline struct cma *cma_from_kobj(struct kobject *kobj) { return container_of(kobj, struct cma_kobject, kobj)->cma; @@ -48,6 +53,15 @@ static ssize_t alloc_pages_fail_show(struct kobject *kobj, } CMA_ATTR_RO(alloc_pages_fail); +static ssize_t release_pages_success_show(struct kobject *kobj, + struct kobj_attribute *attr, char *buf) +{ + struct cma *cma = cma_from_kobj(kobj); + + return sysfs_emit(buf, "%llu\n", atomic64_read(&cma->nr_pages_released)); +} +CMA_ATTR_RO(release_pages_success); + static void cma_kobj_release(struct kobject *kobj) { struct cma *cma = cma_from_kobj(kobj); @@ -60,6 +74,7 @@ static void cma_kobj_release(struct kobject *kobj) static struct attribute *cma_attrs[] = { &alloc_pages_success_attr.attr, &alloc_pages_fail_attr.attr, + &release_pages_success_attr.attr, NULL, }; ATTRIBUTE_GROUPS(cma); |