X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=include%2Fasm-blackfin%2Fthread_info.h;h=642769329d12b12fde86d7fb99620a20a98f39ad;hb=f6ac436dcc4c34709bcde355f3f2254ac0a183d4;hp=15b99cf4f50bbbad4a6cf2fe633bfae25b7043bb;hpb=973ed7c49a5c2271a10ce54ac06bba5617fca3a8;p=linux-2.6 diff --git a/include/asm-blackfin/thread_info.h b/include/asm-blackfin/thread_info.h index 15b99cf4f5..642769329d 100644 --- a/include/asm-blackfin/thread_info.h +++ b/include/asm-blackfin/thread_info.h @@ -42,6 +42,7 @@ /* * Size of kernel stack for each process. This must be a power of 2... */ +#define THREAD_SIZE_ORDER 1 #define THREAD_SIZE 8192 /* 2 pages */ #ifndef __ASSEMBLY__ @@ -81,14 +82,11 @@ struct thread_info { #define init_thread_info (init_thread_union.thread_info) #define init_stack (init_thread_union.stack) -/* How to get the thread information struct from C */ - -static inline struct thread_info *current_thread_info(void) - __attribute__ ((__const__)); - -/* Given a task stack pointer, you can find it's task structure - * just by masking it to the 8K boundary. +/* Given a task stack pointer, you can find its corresponding + * thread_info structure just by masking it to the THREAD_SIZE + * boundary (currently 8K as you can see above). */ +__attribute_const__ static inline struct thread_info *current_thread_info(void) { struct thread_info *ti; @@ -97,10 +95,6 @@ static inline struct thread_info *current_thread_info(void) return (struct thread_info *)((long)ti & ~((long)THREAD_SIZE-1)); } -/* thread information allocation */ -#define alloc_thread_info(tsk) ((struct thread_info *) \ - __get_free_pages(GFP_KERNEL, 1)) -#define free_thread_info(ti) free_pages((unsigned long) (ti), 1) #endif /* __ASSEMBLY__ */ /*