PM/Hibernate: Rework shrinking of memory

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Rework swsusp_shrink_memory() so that it calls shrink_all_memory()
just once to make some room for the image and then allocates memory
to apply more pressure to the memory management subsystem, if
necessary.

Unfortunately, we don't seem to be able to drop shrink_all_memory()
entirely just yet, because that would lead to huge performance
regressions in some test cases.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@ucw.cz>

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This commit is contained in:

Rafael J. Wysocki 2009-07-08 13:23:51 +02:00

parent e681c9dd62

commit 4bb334353e

1 changed files with 158 additions and 47 deletions

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kernel/power/snapshot.c

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