Re: shmem: convert to using splice instead of sendfile()

[Andrew Morton]

On Tue, 10 Jul 2007 23:00:59 GMT Linux Kernel Mailing List 
<linux-kernel@vger.kernel.org> wrote:

> +static int shmem_readpage(struct file *file, struct page *page)
> +{
> +     struct inode *inode = page->mapping->host;
> +     int error = shmem_getpage(inode, page->index, &page, SGP_CACHE, NULL);
> +     unlock_page(page);
> +     return error;
> +}

Worried.  shmem_getpage() does

done:
        if (*pagep != filepage) {
                unlock_page(filepage);
                *pagep = filepage;
        }
        return 0;

so we end up unlocking an unlocked page?
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