Commit-ID: cce4517f33384c3794c759e206cc8e1bb6df146b
Gitweb: http://git.kernel.org/tip/cce4517f33384c3794c759e206cc8e1bb6df146b
Author: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
AuthorDate: Thu, 3 May 2012 09:02:47 +0000
Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitDate: Sat, 5 May 2012 13:00:21 +0200
frv: Use correct size for task_struct allocation
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 <tglx@xxxxxxxxxxxxx>
Acked-by: David Howells <dhowells@xxxxxxxxxx>
Link: http://lkml.kernel.org/r/20120503085033.898475542@xxxxxxxxxxxxx
---
arch/frv/kernel/process.c | 9 ++-------
1 files changed, 2 insertions(+), 7 deletions(-)
diff --git a/arch/frv/kernel/process.c b/arch/frv/kernel/process.c
index d4de48b..1ac84b2 100644
--- a/arch/frv/kernel/process.c
+++ b/arch/frv/kernel/process.c
@@ -45,17 +45,12 @@ 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)
--
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