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[PATCH] slab: remove unused align parameter from alloc_percpu

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__alloc_percpu and alloc_percpu both take an 'align' argument which is
completely ignored.  snmp6_mib_init() in net/ipv6/af_inet6.c attempts to use
it, but it will be ignored.  Therefore, remove the 'align' argument and fixup
the lone caller.

Signed-off-by: Matthew Dobson <colpatch@us.ibm.com>
Acked-by: Manfred Spraul <manfred@colorfullife.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Pekka Enberg 2006-01-08 01:00:33 -08:00 • committed by Linus Torvalds
parent b792de39d8
commit f9f7500521
3 changed files with 6 additions and 8 deletions
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7
include/linux/percpu.h
View file

@ -33,14 +33,14 @@ struct percpu_data {
(__typeof__(ptr))__p->ptrs[(cpu)]; \ (__typeof__(ptr))__p->ptrs[(cpu)]; \
}) })
extern void *__alloc_percpu(size_t size, size_t align); extern void *__alloc_percpu(size_t size);
extern void free_percpu(const void *); extern void free_percpu(const void *);
#else /* CONFIG_SMP */ #else /* CONFIG_SMP */
#define per_cpu_ptr(ptr, cpu) ({ (void)(cpu); (ptr); }) #define per_cpu_ptr(ptr, cpu) ({ (void)(cpu); (ptr); })
static inline void *__alloc_percpu(size_t size, size_t align) static inline void *__alloc_percpu(size_t size)
{ {
void *ret = kmalloc(size, GFP_KERNEL); void *ret = kmalloc(size, GFP_KERNEL);
if (ret) if (ret)
@ -55,7 +55,6 @@ static inline void free_percpu(const void *ptr)
#endif /* CONFIG_SMP */ #endif /* CONFIG_SMP */
/* Simple wrapper for the common case: zeros memory. */ /* Simple wrapper for the common case: zeros memory. */
#define alloc_percpu(type) \ #define alloc_percpu(type) ((type *)(__alloc_percpu(sizeof(type))))
((type *)(__alloc_percpu(sizeof(type), __alignof__(type))))
#endif /* __LINUX_PERCPU_H */ #endif /* __LINUX_PERCPU_H */

3
mm/slab.c
View file

@ -2944,9 +2944,8 @@ EXPORT_SYMBOL(__kmalloc);
* Objects should be dereferenced using the per_cpu_ptr macro only. * Objects should be dereferenced using the per_cpu_ptr macro only.
* *
* @size: how many bytes of memory are required. * @size: how many bytes of memory are required.
* @align: the alignment, which can't be greater than SMP_CACHE_BYTES.
*/ */
void *__alloc_percpu(size_t size, size_t align) void *__alloc_percpu(size_t size)
{ {
int i; int i;
struct percpu_data *pdata = kmalloc(sizeof (*pdata), GFP_KERNEL); struct percpu_data *pdata = kmalloc(sizeof (*pdata), GFP_KERNEL);

4
net/ipv6/af_inet6.c
View file

@ -689,11 +689,11 @@ snmp6_mib_init(void *ptr[2], size_t mibsize, size_t mibalign)
if (ptr == NULL) if (ptr == NULL)
return -EINVAL; return -EINVAL;
ptr[0] = __alloc_percpu(mibsize, mibalign); ptr[0] = __alloc_percpu(mibsize);
if (!ptr[0]) if (!ptr[0])
goto err0; goto err0;
ptr[1] = __alloc_percpu(mibsize, mibalign); ptr[1] = __alloc_percpu(mibsize);
if (!ptr[1]) if (!ptr[1])
goto err1; goto err1;