thp: madvise(MADV_HUGEPAGE)

Browse source

Add madvise MADV_HUGEPAGE to mark regions that are important to be
hugepage backed.  Return -EINVAL if the vma is not of an anonymous type,
or the feature isn't built into the kernel.  Never silently return
success.

Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Acked-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

...

This commit is contained in:

Andrea Arcangeli 2011-01-13 15:46:55 -08:00 • committed by Linus Torvalds

parent f66055ab6f

commit 0af4e98b6b

3 changed files with 30 additions and 0 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

6

include/linux/huge_mm.h

View file

16

mm/huge_memory.c

View file

8

mm/madvise.c

View file