A-Team_Digital_Solutions/android_kernel_motorola_sm6375
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ksm: remove unswappable max_kernel_pages

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Now that ksm pages are swappable, and the known holes plugged, remove
mention of unswappable kernel pages from KSM documentation and comments.

Remove the totalram_pages/4 initialization of max_kernel_pages.  In fact,
remove max_kernel_pages altogether - we can reinstate it if removal turns
out to break someone's script; but if we later want to limit KSM's memory
usage, limiting the stable nodes would not be an effective approach.

Signed-off-by: Hugh Dickins <[email protected]>
Cc: Izik Eidus <[email protected]>
Cc: Andrea Arcangeli <[email protected]>
Cc: Chris Wright <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Hugh Dickins 2009-12-14 17:59:34 -08:00 • committed by Linus Torvalds
commit d0f209f68f
3 changed files with 10 additions and 55 deletions
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mm/Kconfig
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@ -212,7 +212,7 @@ config KSM
Enable Kernel Samepage Merging: KSM periodically scans those areas
of an application's address space that an app has advised may be
mergeable. When it finds pages of identical content, it replaces
the many instances by a single resident page with that content, so
the many instances by a single page with that content, so
saving memory until one or another app needs to modify the content.
Recommended for use with KVM, or with other duplicative applications.
See Documentation/vm/ksm.txt for more information: KSM is inactive