From 0a2436eff9888b8fff8b7a5cf6bae49826615a7e Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Thu, 3 May 2012 09:02:47 +0000 Subject: [PATCH] frv: Use correct size for task_struct allocation commit cce4517f33384c3794c759e206cc8e1bb6df146b upstream. alloc_task_struct_node() allocates THREAD_SIZE and maintains some weird refcount in the allocated memory. This never blew up as task_struct size on 32bit machines was always less than THREAD_SIZE Allocate just sizeof(struct task_struct) and get rid of the magic refcounting. Signed-off-by: Thomas Gleixner Acked-by: David Howells Link: http://lkml.kernel.org/r/20120503085033.898475542@linutronix.de Cc: Guenter Roeck Signed-off-by: Greg Kroah-Hartman --- arch/frv/kernel/process.c | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) diff --git a/arch/frv/kernel/process.c b/arch/frv/kernel/process.c index 3941cbc..40630b7 100644 --- a/arch/frv/kernel/process.c +++ b/arch/frv/kernel/process.c @@ -46,17 +46,12 @@ EXPORT_SYMBOL(pm_power_off); struct task_struct *alloc_task_struct_node(int node) { - struct task_struct *p = kmalloc_node(THREAD_SIZE, GFP_KERNEL, node); - - if (p) - atomic_set((atomic_t *)(p+1), 1); - return p; + return kmalloc_node(sizeof(task_struct), GFP_KERNEL, node); } void free_task_struct(struct task_struct *p) { - if (atomic_dec_and_test((atomic_t *)(p+1))) - kfree(p); + kfree(p); } static void core_sleep_idle(void) -- 2.7.4