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cris: Use common threadinfo allocator

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There is no functional difference. __get_free_pages() ends up calling
alloc_pages_node().

This also allocates only one page which matches THREAD_SIZE instead of
an extra page for nothing.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Link: http://lkml.kernel.org/r/20120505150141.681236240@linutronix.de
This commit is contained in:
Thomas Gleixner 2012-05-05 15:05:43 +00:00
parent 38e7c572ce
commit 803fc74f06
2 changed files with 2 additions and 9 deletions
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5
arch/cris/include/asm/processor.h
View File

@ -25,13 +25,12 @@ struct task_struct;
*/
#define TASK_UNMAPPED_BASE (PAGE_ALIGN(TASK_SIZE / 3))
/* THREAD_SIZE is the size of the task_struct/kernel_stack combo.
/* THREAD_SIZE is the size of the thread_info/kernel_stack combo.
* normally, the stack is found by doing something like p + THREAD_SIZE
* in CRIS, a page is 8192 bytes, which seems like a sane size
*/
#define THREAD_SIZE PAGE_SIZE
#define KERNEL_STACK_SIZE PAGE_SIZE
#define THREAD_SIZE_ORDER (0)
/*
* At user->kernel entry, the pt_regs struct is stacked on the top of the kernel-stack.

6
arch/cris/include/asm/thread_info.h
View File

@ -65,12 +65,6 @@ struct thread_info {
#define init_thread_info (init_thread_union.thread_info)
#define __HAVE_ARCH_THREAD_INFO_ALLOCATOR
/* thread information allocation */
#define alloc_thread_info_node(tsk, node) \
((struct thread_info *) __get_free_pages(GFP_KERNEL, 1))
#define free_thread_info(ti) free_pages((unsigned long) (ti), 1)
#endif /* !__ASSEMBLY__ */
/*