[PATCH] swsusp: introduce the swap map structure
authorRafael J. Wysocki <rjw@sisk.pl>
Fri, 6 Jan 2006 08:13:05 +0000 (00:13 -0800)
committerLinus Torvalds <torvalds@g5.osdl.org>
Fri, 6 Jan 2006 16:33:40 +0000 (08:33 -0800)
commit7088a5c00103ef48782d6c359cd12b13a10666e6
treeb731c8af48e00c0ec88bbe57b6b2a2c1ec20fbde
parentf2d97f02961e8b1f8a24befb88ab0e5c886586ff
[PATCH] swsusp: introduce the swap map structure

This patch introduces the swap map structure that can be used by swsusp for
keeping tracks of data pages written to the swap.  ┬áThe structure itself is
described in a comment within the patch.

The overall idea is to reduce the amount of metadata written to the swap and
to write and read the image pages sequentially, in a file-alike way.  This
makes the swap-handling part of swsusp fairly independent of its
snapshot-handling part and will hopefully allow us to completely separate
these two parts in the future.

This patch is needed to remove the suspend image size limit imposed by the
limited size of the swsusp_info structure, which is essential for x86-64
systems with more than 512 MB of RAM.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
include/linux/suspend.h
kernel/power/disk.c
kernel/power/power.h
kernel/power/snapshot.c
kernel/power/swsusp.c