Messages in this thread | | | Date | Mon, 14 May 2007 00:16:32 -0700 | From | Andrew Morton <> | Subject | Re: [PATCH] Add __vunmap prototype |
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On Mon, 14 May 2007 17:07:03 +1000 Benjamin Herrenschmidt <benh@kernel.crashing.org> wrote:
> __vunmap is not static but I couldn't find a prototype for it, so this > adds it. I need to use it in some powerpc patch to come. > > Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> > > include/linux/vmalloc.h | 1 + > 1 file changed, 1 insertion(+) > > Index: linux-cell/include/linux/vmalloc.h > =================================================================== > --- linux-cell.orig/include/linux/vmalloc.h 2007-05-14 16:03:42.000000000 +1000 > +++ linux-cell/include/linux/vmalloc.h 2007-05-14 16:03:47.000000000 +1000 > @@ -50,6 +50,7 @@ extern void vfree(void *addr); > extern void *vmap(struct page **pages, unsigned int count, > unsigned long flags, pgprot_t prot); > extern void vunmap(void *addr); > +extern void __vunmap(void *addr, int deallocate_pages); > > extern int remap_vmalloc_range(struct vm_area_struct *vma, void *addr, > unsigned long pgoff);
um, the only possible reason for wanting to access __vunmap() is that you want to do vunmap() from interrupt context, which is deadlockable.
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