Messages in this thread | | | Date | Wed, 16 Apr 2008 11:33:01 +0300 | From | "Pekka Enberg" <> | Subject | Re: [PATCH -mm] relayfs: support larger relay buffer |
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On Tue, Apr 15, 2008 at 6:27 PM, Masami Hiramatsu <mhiramat@redhat.com> wrote: > Use vmalloc() and memset() instead of kcalloc() to allocate a page* array > when the array size is bigger than one page. This enables relayfs to support > bigger relay buffers than 64MB on 4k-page system, 512MB on 16k-page system. > > Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com> > --- > @@ -130,7 +138,10 @@ static void *relay_alloc_buf(struct rcha > depopulate: > for (j = 0; j < i; j++) > __free_page(buf->page_array[j]); > - kfree(buf->page_array); > + if (pa_size > PAGE_SIZE)
You can use is_vmalloc_addr() here.
> + vfree(buf->page_array); > + else > + kfree(buf->page_array); > return NULL; > } >
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