linux-kernel - [PATCH 3/5] Hibernation: Add mass swap allocation routine.

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Date:	Wed, 26 May 2010 17:10:04 +1000
From:	Nigel Cunningham <ncunningham@...a.org.au>
To:	"Rafael J. Wysocki" <rjw@...k.pl>,
	pm list <linux-pm@...ts.linux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>,
	TuxOnIce-devel <tuxonice-devel@...ts.tuxonice.net>
Subject: [PATCH 3/5] Hibernation: Add mass swap allocation routine.

Add a routine to allocate swap from a device en masse. This is only
for use by the in-kernel implementation, not uswsusp.

Signed-off-by: Nigel Cunningham <nigel@...onice.net>
---
  kernel/power/swap.c |   13 +++++++++++++
  1 files changed, 13 insertions(+), 0 deletions(-)

diff --git a/kernel/power/swap.c b/kernel/power/swap.c
index e555b6c..550c1ed 100644
--- a/kernel/power/swap.c
+++ b/kernel/power/swap.c
@@ -187,6 +187,19 @@ sector_t alloc_swapdev_block(int swap)
  	return 0;
  }

+int alloc_swapdev_blocks(int needed)
+{
+	int i;
+
+	for (i = 0; i < needed; i++) {
+		sector_t res = alloc_swapdev_block(root_swap);
+		if (!res)
+			break;
+	}
+
+	return i;
+}
+
  /**
   *	free_all_swap_pages - free swap pages allocated for saving image data.
   *	It also frees the extents used to register which swap entres had been
-- 
1.7.0.4

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/