Messages in this thread Patch in this message | | | Date | Fri, 03 Sep 2010 18:27:53 +0200 | From | Tejun Heo <> | Subject | [PATCH RESEND 1/3] vmalloc: pcpu_get/free_vm_areas() aren't needed on UP |
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These functions are used only by percpu memory allocator on SMP. Don't build them on UP.
Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Nick Piggin <npiggin@kernel.dk> --- (resending w/ Nick's new email address)
So, something like these three patches. Also available in the following git tree.
git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu.git review-up
Nick, can I route this one through percpu tree?
Thanks.
include/linux/vmalloc.h | 2 ++ mm/vmalloc.c | 2 ++ 2 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h index de05e96..3d510e8 100644 --- a/include/linux/vmalloc.h +++ b/include/linux/vmalloc.h @@ -115,10 +115,12 @@ extern rwlock_t vmlist_lock; extern struct vm_struct *vmlist; extern __init void vm_area_register_early(struct vm_struct *vm, size_t align);
+#ifdef CONFIG_SMP struct vm_struct **pcpu_get_vm_areas(const unsigned long *offsets, const size_t *sizes, int nr_vms, size_t align, gfp_t gfp_mask);
void pcpu_free_vm_areas(struct vm_struct **vms, int nr_vms); +#endif
#endif /* _LINUX_VMALLOC_H */ diff --git a/mm/vmalloc.c b/mm/vmalloc.c index b7e314b..eb57a63 100644 --- a/mm/vmalloc.c +++ b/mm/vmalloc.c @@ -2052,6 +2052,7 @@ void free_vm_area(struct vm_struct *area) } EXPORT_SYMBOL_GPL(free_vm_area);
+#ifdef CONFIG_SMP static struct vmap_area *node_to_va(struct rb_node *n) { return n ? rb_entry(n, struct vmap_area, rb_node) : NULL; @@ -2332,6 +2333,7 @@ void pcpu_free_vm_areas(struct vm_struct **vms, int nr_vms) free_vm_area(vms[i]); kfree(vms); } +#endif /* CONFIG_SMP */
#ifdef CONFIG_PROC_FS static void *s_start(struct seq_file *m, loff_t *pos) -- 1.7.1
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