The patch titled PERCPU : __percpu_alloc_mask() can dynamically size percpu_data storage has been removed from the -mm tree. Its filename was percpu-__percpu_alloc_mask-can-dynamically-size-percpu_data.patch This patch was dropped because it was merged into mainline or a subsystem tree The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/ ------------------------------------------------------ Subject: PERCPU : __percpu_alloc_mask() can dynamically size percpu_data storage From: Eric Dumazet <dada1@xxxxxxxxxxxxx> Instead of allocating a fix sized array of NR_CPUS pointers for percpu_data, we can use nr_cpu_ids, which is generally < NR_CPUS. Signed-off-by: Eric Dumazet <dada1@xxxxxxxxxxxxx> Cc: Christoph Lameter <clameter@xxxxxxx> Cc: "David S. Miller" <davem@xxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- include/linux/percpu.h | 2 +- mm/allocpercpu.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff -puN include/linux/percpu.h~percpu-__percpu_alloc_mask-can-dynamically-size-percpu_data include/linux/percpu.h --- a/include/linux/percpu.h~percpu-__percpu_alloc_mask-can-dynamically-size-percpu_data +++ a/include/linux/percpu.h @@ -54,7 +54,7 @@ #ifdef CONFIG_SMP struct percpu_data { - void *ptrs[NR_CPUS]; + void *ptrs[1]; }; #define __percpu_disguise(pdata) (struct percpu_data *)~(unsigned long)(pdata) diff -puN mm/allocpercpu.c~percpu-__percpu_alloc_mask-can-dynamically-size-percpu_data mm/allocpercpu.c --- a/mm/allocpercpu.c~percpu-__percpu_alloc_mask-can-dynamically-size-percpu_data +++ a/mm/allocpercpu.c @@ -98,7 +98,7 @@ EXPORT_SYMBOL_GPL(__percpu_populate_mask */ void *__percpu_alloc_mask(size_t size, gfp_t gfp, cpumask_t *mask) { - void *pdata = kzalloc(sizeof(struct percpu_data), gfp); + void *pdata = kzalloc(nr_cpu_ids * sizeof(void *), gfp); void *__pdata = __percpu_disguise(pdata); if (unlikely(!pdata)) _ Patches currently in -mm which might be from dada1@xxxxxxxxxxxxx are origin.patch - To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html