Andrew Morton writes:
> Wu Fengguang <[email protected]> wrote:
> > @@ -302,6 +303,8 @@ __do_page_cache_readahead(struct address
> > break;
> > page->index = page_offset;
> > list_add(&page->lru, &page_pool);
> > + if (page_idx == nr_to_read - lookahead_size)
> > + __SetPageReadahead(page);
> > ret++;
> > }
>
> OK. But the __SetPageFoo() things still give me the creeps.
I just hope that Wu Fengguang, or whoever is making these patches,
realizes that on some architectures, doing __set_bit on one CPU
concurrently with another CPU doing set_bit on a different bit in the
same word can result in the second CPU's update getting lost...
Paul.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
