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[PATCH] swsusp: improve freeing of memory

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This patch makes swsusp free only as much memory as needed to complete the
suspend and not as much as possible.   In the most of cases this should speed
up the suspend and make the system much more responsive after resume,
especially if a GUI (eg.  X Windows) is used.

If needed, the old behavior (ie to free as much memory as possible during
suspend) can be restored by unsetting FAST_FREE in power.h

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>
This commit is contained in:
Rafael J. Wysocki 2006-01-06 00:13:46 -08:00 • committed by Linus Torvalds
parent 7088a5c001
commit 72a97e0839
5 changed files with 126 additions and 37 deletions
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2
include/linux/suspend.h
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@ -73,6 +73,6 @@ unsigned long get_safe_page(gfp_t gfp_mask);
* XXX: We try to keep some more pages free so that I/O operations succeed
* without paging. Might this be more?
*/
#define PAGES_FOR_IO 512
#define PAGES_FOR_IO 1024
#endif /* _LINUX_SWSUSP_H */