Re: [2.6 patch] fix arm26 THREAD_SIZE

[Ian Molton]

Adrian Bunk wrote:

Looks good to me. cant recall why that got that way, but the div by zero 
definately went away at the time. certainly its wrong as-is, the 
implication is that an 8 MB machine would get a max_threads of about 4 :)

Signed-off-by: Adrian Bunk <bunk@xxxxxxxxx>
Signed-off-by: Ian Molton <spyro@xxxxxxx>

--- linux-2.6.15-mm1-full/include/asm-arm26/thread_info.h.old	2006-01-06 
16:45:40.000000000 +0100
+++ linux-2.6.15-mm1-full/include/asm-arm26/thread_info.h	2006-01-06 
16:46:07.000000000 +0100
@@ -80,8 +80,7 @@
 	return (struct thread_info *)(sp & ~0x1fff);
 }

-/* FIXME - PAGE_SIZE < 32K */
-#define THREAD_SIZE		(8*32768) // FIXME - this needs attention (see 
kernel/fork.c which gets a nice div by zero if this is lower than 8*32768
+#define THREAD_SIZE	PAGE_SIZE
 #define task_pt_regs(task) ((struct pt_regs *)(task_stack_page(task) + 
THREAD_SIZE - 8) - 1)

 extern struct thread_info *alloc_thread_info(struct task_struct *task);



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