Re: Correct way to release get_user_pages()?
From: Timur Tabi
Date: Fri Jan 28 2005 - 13:07:58 EST
Roland Dreier wrote:
Reading through the tree, I see that some callers of get_user_pages()
release the pages that they got via put_page(), and some callers use
page_cache_release(). Of course <linux/pagemap.h> has
#define page_cache_release(page) put_page(page)
so this is really not much of a difference, but I'd like to know which
is considered better style. Any opinions?
I've defined this function. I'm not sure if it really works, but it
looks good.
#include <linux/pagemap.h>
void put_user_pages(int len, struct page **pages)
{
int i;
for (i=0; i<len; i++) {
if (!PageReserved(pages[i])) {
SetPageDirty(pages[i]);
}
page_cache_release(pages[i]);
}
}
--
Timur Tabi
Staff Software Engineer
timur.tabi@xxxxxxxxxxx
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