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(parent: 3aeb5ff) | patch
x86: add pmd_[dirty|mkclean] for THP
authorMinchan Kim <minchan@kernel.org>
Tue, 7 Apr 2015 23:44:39 +0000 (09:44 +1000)
committerStephen Rothwell <sfr@canb.auug.org.au>
Tue, 7 Apr 2015 23:44:39 +0000 (09:44 +1000)
commit4922c95977a30a8af30538d10f77a70cbc642906
tree401e0635df342b73fc0f466864641461ec6b56e1tree | snapshot
parent3aeb5ffdf79729bdac8b59c014df61d172b707e5commit | diff
x86: add pmd_[dirty|mkclean] for THP

MADV_FREE needs pmd_dirty and pmd_mkclean for detecting recent overwrite
of the contents since MADV_FREE syscall is called for THP page.

This patch adds pmd_dirty and pmd_mkclean for THP page MADV_FREE
support.

Signed-off-by: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
arch/x86/include/asm/pgtable.h diff | blob | history
Linux kernel for KaRo TX COM modules