From: Pavel Machek <pavel@ucw.cz>
To: hugang@soulinfo.com
Cc: linux-kernel@vger.kernel.org
Subject: Re: software suspend patch [2/6]
Date: Sun, 28 Nov 2004 18:03:24 +0100 [thread overview]
Message-ID: <20041128170324.GB1214@elf.ucw.cz> (raw)
In-Reply-To: <20041128162412.GB28881@hugang.soulinfo.com>
Hi!
> @@ -222,8 +221,105 @@ static void lock_swapdevices(void)
> }
> swap_list_unlock();
> }
> +
> +#define ONE_PAGE_PBE_NUM (PAGE_SIZE/sizeof(struct pbe))
> +#define PBE_IS_PAGE_END(x) \
> + ( PAGE_SIZE - sizeof(struct pbe) == ((x) - ((~(PAGE_SIZE - 1)) & (x))) )
> +
> +#define pgdir_for_each_safe(pos, n, head) \
> + for(pos = head, n = pos ? (suspend_pagedir_t*)pos->dummy.val : NULL; \
> + pos != NULL; \
> + pos = n, n = pos ? (suspend_pagedir_t *)pos->dummy.val : NULL)
> +
> +#define pbe_for_each_safe(pos, n, index, max, head) \
> + for(pos = head, index = 0, \
> + n = pos ? (struct pbe *)pos->dummy.val : NULL; \
> + (pos != NULL) && (index < max); \
> + pos = (PBE_IS_PAGE_END((unsigned long)pos)) ? n : \
> + ((struct pbe *)((unsigned long)pos + sizeof(struct pbe))), \
> + index ++, \
> + n = pos ? (struct pbe*)pos->dummy.val : NULL)
> +
_safe suffix means it is safe to delete while traversing. I do not
think your macros can handle that, so you should not have _safe
suffix.
Pavel
--
People were complaining that M$ turns users into beta-testers...
...jr ghea gurz vagb qrirybcref, naq gurl frrz gb yvxr vg gung jnl!
next prev parent reply other threads:[~2004-11-28 17:06 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-11-27 22:07 Suspend 2 merge linux
2004-11-27 22:25 ` Pavel Machek
2004-11-28 8:29 ` Wichert Akkerman
2004-11-28 11:37 ` Pavel Machek
2004-11-28 16:23 ` software suspend patch [1/6] hugang
2004-11-28 16:24 ` software suspend patch [2/6] hugang
2004-11-28 17:03 ` Pavel Machek [this message]
2004-11-28 16:24 ` software suspend patch [3/6] hugang
2004-11-28 16:25 ` software suspend patch [4/6] hugang
2004-11-28 17:08 ` Pavel Machek
2004-11-28 16:25 ` software suspend patch [5/6] hugang
2004-11-28 16:25 ` software suspend patch [1/6] hugang
2004-11-28 17:11 ` Pavel Machek
2004-12-02 20:56 ` Guido Guenther
2004-11-28 16:58 ` Pavel Machek
2004-11-29 15:43 ` hugang
2005-01-09 22:43 ` Pavel Machek
2005-01-11 2:01 ` hugang
2005-01-11 3:15 ` Pavel Machek
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