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Date: Sun, 24 Jan 1999 02:51:55 +0100 (CET)
From: Andrea Arcangeli <andrea@e-mind.com>
Subject: Re: 2.2.0-final
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To: "Stephen C. Tweedie" <sct@redhat.com>, Rik van Riel <H.H.vanRiel@phys.uu.nl>
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On Sat, 23 Jan 1999, Andrea Arcangeli wrote:

> where buffer_get() is this:

Just for the record, I cut-and-pasted a wrong buffer_get() (due a
last-minute wrong hack, I noticed it now when I powerup the machine now
;), the right one is this: 

extern inline void buffer_get(struct buffer_head *bh)
{
	struct page * page = mem_map + MAP_NR(bh->b_data);

	switch (atomic_read(&page->count))
	{
	case 1:
		nr_freeable_pages--;
	default:
		atomic_inc(&page->count);
		break;
#if 1 /* PARANOID */
	case 0:
		printk(KERN_ERR "buffer_get: page was unused!\n");
#endif
	}
}

Andrea Arcangeli

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