diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2009-08-19 07:56:42 (GMT) |
|---|---|---|
| committer | Scott Wood <scottwood@freescale.com> | 2014-04-10 00:18:53 (GMT) |
| commit | effe862239f73c781d8738a138ea54959e54e267 (patch) | |
| tree | a40ecd6b16a2f8747d8cd59dce446a267a884219 /include/linux | |
| parent | 9a984747422e7b6cb8754aa1074de225c9e23907 (diff) | |
| download | linux-fsl-qoriq-effe862239f73c781d8738a138ea54959e54e267.tar.xz | |
mm: Replace cgroup_page bit spinlock
Bit spinlocks are not working on RT. Replace them.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/page_cgroup.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/include/linux/page_cgroup.h b/include/linux/page_cgroup.h index 777a524..ca67e80 100644 --- a/include/linux/page_cgroup.h +++ b/include/linux/page_cgroup.h @@ -24,6 +24,9 @@ enum { */ struct page_cgroup { unsigned long flags; +#ifdef CONFIG_PREEMPT_RT_BASE + spinlock_t pcg_lock; +#endif struct mem_cgroup *mem_cgroup; }; @@ -74,12 +77,20 @@ static inline void lock_page_cgroup(struct page_cgroup *pc) * Don't take this lock in IRQ context. * This lock is for pc->mem_cgroup, USED, MIGRATION */ +#ifndef CONFIG_PREEMPT_RT_BASE bit_spin_lock(PCG_LOCK, &pc->flags); +#else + spin_lock(&pc->pcg_lock); +#endif } static inline void unlock_page_cgroup(struct page_cgroup *pc) { +#ifndef CONFIG_PREEMPT_RT_BASE bit_spin_unlock(PCG_LOCK, &pc->flags); +#else + spin_unlock(&pc->pcg_lock); +#endif } #else /* CONFIG_MEMCG */ @@ -102,6 +113,10 @@ static inline void __init page_cgroup_init_flatmem(void) { } +static inline void page_cgroup_lock_init(struct page_cgroup *pc) +{ +} + #endif /* CONFIG_MEMCG */ #include <linux/swap.h> |