linux-kernel - [PATCH 15/23] Hibernation: Use block extents for reading image

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Date:	Mon, 27 Sep 2010 15:43:50 +1000
From:	Nigel Cunningham <nigel@...onice.net>
To:	"Rafael J. Wysocki" <rjw@...k.pl>,
	Linux PM <linux-pm@...ts.linux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>,
	TuxOnIce-devel <tuxonice-devel@...onice.net>
Subject: [PATCH 15/23] Hibernation: Use block extents for reading image

Switch from using swap map pages to using block extents for
knowing where the next page needs to be read from.

Signed-off-by: Nigel Cunningham <nigel@...onice.net>
---
 kernel/power/block_io.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/power/block_io.c b/kernel/power/block_io.c
index 89601d3..f2bc044 100644
--- a/kernel/power/block_io.c
+++ b/kernel/power/block_io.c
@@ -332,7 +332,7 @@ int swap_read_page(void *buf, int sync)
 
 	if (!handle.cur)
 		return -EINVAL;
-	offset = handle.cur->entries[handle.k];
+	offset = hib_extent_next(&sector_extents);
 	if (!offset)
 		return -EFAULT;
 	error = hib_bio_read_page(offset, buf, sync);
@@ -341,7 +341,7 @@ int swap_read_page(void *buf, int sync)
 	if (++handle.k >= MAP_PAGE_ENTRIES) {
 		error = hib_wait_on_bio_chain();
 		handle.k = 0;
-		offset = handle.cur->next_swap;
+		offset = hib_extent_next(&sector_extents);
 		if (!offset)
 			release_swap_reader();
 		else if (!error)
-- 
1.7.0.4

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