From: Pavel Machek <pavel@ucw.cz>
To: Nigel Cunningham <nigel@suspend2.net>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [Suspend2][ 15/20] [Suspend2] Attempt to freeze processes.
Date: Tue, 27 Jun 2006 15:45:14 +0200 [thread overview]
Message-ID: <20060627134514.GC3019@elf.ucw.cz> (raw)
In-Reply-To: <20060626223537.4050.72340.stgit@nigel.suspend2.net>
Hi!
> Call the freezer code to get processes frozen, and abort suspending if that
> fails. May be called multiple times as we thaw kernel space (only) if we
> need to free memory to meet constraints.
Current code seems to free memory without need to thaw/re-freeze
kernel threads. Have you found bugs in that, or is this unneccessary?
> +static int attempt_to_freeze(void)
> +{
> + int result;
> +
> + /* Stop processes before checking again */
> + thaw_processes(FREEZER_ALL_THREADS);
> + suspend_prepare_status(CLEAR_BAR, "Freezing processes");
> + result = freeze_processes();
> +
> + if (result) {
> + set_result_state(SUSPEND_ABORTED);
> + set_result_state(SUSPEND_FREEZING_FAILED);
> + } else
> + are_frozen = 1;
> +
> + return result;
> +}
> +
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
next prev parent reply other threads:[~2006-06-27 13:47 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-06-26 22:34 [Suspend2][ 00/20] Prepare image Nigel Cunningham
2006-06-26 22:34 ` [Suspend2][ 01/20] [Suspend2] Prepare_image.c header Nigel Cunningham
2006-06-26 22:34 ` [Suspend2][ 02/20] [Suspend2] Get number of pcp pages Nigel Cunningham
2006-06-26 22:34 ` [Suspend2][ 03/20] [Suspend2] Get the real number of free pages (incl. pcp) Nigel Cunningham
2006-06-26 22:35 ` [Suspend2][ 04/20] [Suspend2] Calculate pagedir1 growth allowance Nigel Cunningham
2006-06-26 22:35 ` [Suspend2][ 05/20] [Suspend2] Get the amount of storage needed for the image proper Nigel Cunningham
2006-06-26 22:35 ` [Suspend2][ 06/20] [Suspend2] Calculate header storage needed Nigel Cunningham
2006-06-26 22:35 ` [Suspend2][ 07/20] [Suspend2] Display image vital statistics Nigel Cunningham
2006-06-26 22:35 ` [Suspend2][ 08/20] [Suspend2] Generate free page bitmap Nigel Cunningham
2006-06-26 22:35 ` [Suspend2][ 09/20] [Suspend2] Get size of a free region Nigel Cunningham
2006-06-26 22:35 ` [Suspend2][ 10/20] [Suspend2] Count pages in image parts Nigel Cunningham
2006-06-26 22:35 ` [Suspend2][ 11/20] [Suspend2] Amount of memory still to be freed Nigel Cunningham
2006-06-26 22:35 ` [Suspend2][ 12/20] [Suspend2] Recalculate image contents Nigel Cunningham
2006-06-26 22:35 ` [Suspend2][ 13/20] [Suspend2] Try to refreeze processes Nigel Cunningham
2006-06-26 22:35 ` [Suspend2][ 14/20] [Suspend2] Update the image Nigel Cunningham
2006-06-26 22:35 ` [Suspend2][ 15/20] [Suspend2] Attempt to freeze processes Nigel Cunningham
2006-06-27 13:45 ` Pavel Machek [this message]
2006-06-27 23:38 ` Nigel Cunningham
2006-06-28 18:59 ` Hugh Dickins
2006-06-28 22:10 ` Nigel Cunningham
2006-06-26 22:35 ` [Suspend2][ 16/20] [Suspend2] Calculate storage needed for an image Nigel Cunningham
2006-06-26 22:35 ` [Suspend2][ 17/20] [Suspend2] Calculate the amount of free memory needed Nigel Cunningham
2006-06-26 22:35 ` [Suspend2][ 18/20] [Suspend2] Free up memory if necessary Nigel Cunningham
2006-06-26 22:35 ` [Suspend2][ 19/20] [Suspend2] Prepare an image Nigel Cunningham
2006-06-26 22:35 ` [Suspend2][ 20/20] [Suspend2] Prepare image header file Nigel Cunningham
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