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mn10300: Use common threadinfo allocator 

Let the core code allocate and handle the kgdb cleanup with the
arch_release_thread_info() function.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: David Howells <dhowells@redhat.com>
Link: http://lkml.kernel.org/r/20120505150141.996582377@linutronix.de
hifive-unleashed-5.1
Thomas Gleixner 2012-05-05 15:05:45 +00:00
parent 96c9511797
commit c03a6a7ba6
2 changed files with 4 additions and 16 deletions
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17
arch/mn10300/include/asm/thread_info.h
View File

@ -20,8 +20,10 @@
#ifdef CONFIG_4KSTACKS
#define THREAD_SIZE (4096)
#define THREAD_SIZE_ORDER (0)
#else
#define THREAD_SIZE (8192)
#define THREAD_SIZE_ORDER (1)
#endif
#define STACK_WARN (THREAD_SIZE / 8)
@ -120,21 +122,8 @@ static inline unsigned long current_stack_pointer(void)
return sp;
}
#define __HAVE_ARCH_THREAD_INFO_ALLOCATOR
/* thread information allocation */
#ifdef CONFIG_DEBUG_STACK_USAGE
#define alloc_thread_info_node(tsk, node) \
kzalloc_node(THREAD_SIZE, GFP_KERNEL, node)
#else
#define alloc_thread_info_node(tsk, node) \
kmalloc_node(THREAD_SIZE, GFP_KERNEL, node)
#endif
#ifndef CONFIG_KGDB
#define free_thread_info(ti) kfree((ti))
#else
extern void free_thread_info(struct thread_info *);
void arch_release_thread_info(struct thread_info *ti)
#endif
#define get_thread_info(ti) get_task_struct((ti)->task)
#define put_thread_info(ti) put_task_struct((ti)->task)

3
arch/mn10300/kernel/kgdb.c
View File

@ -397,7 +397,7 @@ static bool kgdb_arch_undo_singlestep(struct pt_regs *regs)
* single-step state is cleared. At this point the breakpoints should have
* been removed by __switch_to().
*/
void free_thread_info(struct thread_info *ti)
void arch_release_thread_info(struct thread_info *ti)
{
if (kgdb_sstep_thread == ti) {
kgdb_sstep_thread = NULL;
@ -407,7 +407,6 @@ void free_thread_info(struct thread_info *ti)
* so force immediate reentry */
kgdb_breakpoint();
}
kfree(ti);
}
/*