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authorLi Zefan <lizf@cn.fujitsu.com>2009-01-07 18:08:45 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2009-01-08 08:31:11 -0800
commit6af866af34a96fed24a55979a78b6f73bd4e8e87 (patch)
treee0c4b27ce3b684ebb2f6fa3685051e01a86d7354 /kernel/cpuset.c
parent300ed6cbb70718872cb4936d1d22ef295f9ba44d (diff)
downloadlinux-2.6.34-ux500-6af866af34a96fed24a55979a78b6f73bd4e8e87.tar.gz
cpuset: remove remaining pointers to cpumask_t
Impact: cleanups, use new cpumask API Final trivial cleanups: mainly s/cpumask_t/struct cpumask Note there is a FIXME in generate_sched_domains(). A future patch will change struct cpumask *doms to struct cpumask *doms[]. (I suppose Rusty will do this.) Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Rusty Russell <rusty@rustcorp.com.au> Acked-by: Mike Travis <travis@sgi.com> Cc: Paul Menage <menage@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/cpuset.c')
-rw-r--r--kernel/cpuset.c28
1 files changed, 15 insertions, 13 deletions
diff --git a/kernel/cpuset.c b/kernel/cpuset.c
index fc294aa9a97..647c77a88fc 100644
--- a/kernel/cpuset.c
+++ b/kernel/cpuset.c
@@ -289,7 +289,8 @@ static struct file_system_type cpuset_fs_type = {
* Call with callback_mutex held.
*/
-static void guarantee_online_cpus(const struct cpuset *cs, cpumask_t *pmask)
+static void guarantee_online_cpus(const struct cpuset *cs,
+ struct cpumask *pmask)
{
while (cs && !cpumask_intersects(cs->cpus_allowed, cpu_online_mask))
cs = cs->parent;
@@ -610,7 +611,8 @@ update_domain_attr_tree(struct sched_domain_attr *dattr, struct cpuset *c)
* element of the partition (one sched domain) to be passed to
* partition_sched_domains().
*/
-static int generate_sched_domains(cpumask_t **domains,
+/* FIXME: see the FIXME in partition_sched_domains() */
+static int generate_sched_domains(struct cpumask **domains,
struct sched_domain_attr **attributes)
{
LIST_HEAD(q); /* queue of cpusets to be scanned */
@@ -618,10 +620,10 @@ static int generate_sched_domains(cpumask_t **domains,
struct cpuset **csa; /* array of all cpuset ptrs */
int csn; /* how many cpuset ptrs in csa so far */
int i, j, k; /* indices for partition finding loops */
- cpumask_t *doms; /* resulting partition; i.e. sched domains */
+ struct cpumask *doms; /* resulting partition; i.e. sched domains */
struct sched_domain_attr *dattr; /* attributes for custom domains */
int ndoms = 0; /* number of sched domains in result */
- int nslot; /* next empty doms[] cpumask_t slot */
+ int nslot; /* next empty doms[] struct cpumask slot */
doms = NULL;
dattr = NULL;
@@ -629,7 +631,7 @@ static int generate_sched_domains(cpumask_t **domains,
/* Special case for the 99% of systems with one, full, sched domain */
if (is_sched_load_balance(&top_cpuset)) {
- doms = kmalloc(sizeof(cpumask_t), GFP_KERNEL);
+ doms = kmalloc(cpumask_size(), GFP_KERNEL);
if (!doms)
goto done;
@@ -708,7 +710,7 @@ restart:
* Now we know how many domains to create.
* Convert <csn, csa> to <ndoms, doms> and populate cpu masks.
*/
- doms = kmalloc(ndoms * sizeof(cpumask_t), GFP_KERNEL);
+ doms = kmalloc(ndoms * cpumask_size(), GFP_KERNEL);
if (!doms)
goto done;
@@ -720,7 +722,7 @@ restart:
for (nslot = 0, i = 0; i < csn; i++) {
struct cpuset *a = csa[i];
- cpumask_t *dp;
+ struct cpumask *dp;
int apn = a->pn;
if (apn < 0) {
@@ -743,7 +745,7 @@ restart:
continue;
}
- cpus_clear(*dp);
+ cpumask_clear(dp);
if (dattr)
*(dattr + nslot) = SD_ATTR_INIT;
for (j = i; j < csn; j++) {
@@ -790,7 +792,7 @@ done:
static void do_rebuild_sched_domains(struct work_struct *unused)
{
struct sched_domain_attr *attr;
- cpumask_t *doms;
+ struct cpumask *doms;
int ndoms;
get_online_cpus();
@@ -2044,7 +2046,7 @@ static int cpuset_track_online_cpus(struct notifier_block *unused_nb,
unsigned long phase, void *unused_cpu)
{
struct sched_domain_attr *attr;
- cpumask_t *doms;
+ struct cpumask *doms;
int ndoms;
switch (phase) {
@@ -2114,7 +2116,7 @@ void __init cpuset_init_smp(void)
/**
* cpuset_cpus_allowed - return cpus_allowed mask from a tasks cpuset.
* @tsk: pointer to task_struct from which to obtain cpuset->cpus_allowed.
- * @pmask: pointer to cpumask_t variable to receive cpus_allowed set.
+ * @pmask: pointer to struct cpumask variable to receive cpus_allowed set.
*
* Description: Returns the cpumask_var_t cpus_allowed of the cpuset
* attached to the specified @tsk. Guaranteed to return some non-empty
@@ -2122,7 +2124,7 @@ void __init cpuset_init_smp(void)
* tasks cpuset.
**/
-void cpuset_cpus_allowed(struct task_struct *tsk, cpumask_t *pmask)
+void cpuset_cpus_allowed(struct task_struct *tsk, struct cpumask *pmask)
{
mutex_lock(&callback_mutex);
cpuset_cpus_allowed_locked(tsk, pmask);
@@ -2133,7 +2135,7 @@ void cpuset_cpus_allowed(struct task_struct *tsk, cpumask_t *pmask)
* cpuset_cpus_allowed_locked - return cpus_allowed mask from a tasks cpuset.
* Must be called with callback_mutex held.
**/
-void cpuset_cpus_allowed_locked(struct task_struct *tsk, cpumask_t *pmask)
+void cpuset_cpus_allowed_locked(struct task_struct *tsk, struct cpumask *pmask)
{
task_lock(tsk);
guarantee_online_cpus(task_cs(tsk), pmask);