diff options
Diffstat (limited to 'include/asm-powerpc/thread_info.h')
| -rw-r--r-- | include/asm-powerpc/thread_info.h | 27 |
1 files changed, 17 insertions, 10 deletions
diff --git a/include/asm-powerpc/thread_info.h b/include/asm-powerpc/thread_info.h index 0b4c245..ab17db7 100644 --- a/include/asm-powerpc/thread_info.h +++ b/include/asm-powerpc/thread_info.h @@ -66,19 +66,26 @@ struct thread_info { /* thread information allocation */ #ifdef CONFIG_DEBUG_STACK_USAGE -#define alloc_thread_info(tsk) \ - ({ \ - struct thread_info *ret; \ - \ - ret = kmalloc(THREAD_SIZE, GFP_KERNEL); \ - if (ret) \ - memset(ret, 0, THREAD_SIZE); \ - ret; \ - }) +#define THREAD_INFO_GFP GFP_KERNEL | __GFP_ZERO #else -#define alloc_thread_info(tsk) kmalloc(THREAD_SIZE, GFP_KERNEL) +#define THREAD_INFO_GFP GFP_KERNEL #endif + +#if THREAD_SHIFT >= PAGE_SHIFT + +#define THREAD_ORDER (THREAD_SHIFT - PAGE_SHIFT) + +#define alloc_thread_info(tsk) \ + ((struct thread_info *)__get_free_pages(THREAD_INFO_GFP, THREAD_ORDER)) +#define free_thread_info(ti) free_pages((unsigned long)ti, THREAD_ORDER) + +#else /* THREAD_SHIFT < PAGE_SHIFT */ + +#define alloc_thread_info(tsk) kmalloc(THREAD_SIZE, THREAD_INFO_GFP) #define free_thread_info(ti) kfree(ti) + +#endif /* THREAD_SHIFT < PAGE_SHIFT */ + #define get_thread_info(ti) get_task_struct((ti)->task) #define put_thread_info(ti) put_task_struct((ti)->task) |