diff options
| author | Kirill A. Shutemov <[email protected]> | 2012-12-12 13:50:54 -0800 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2012-12-12 17:38:31 -0800 |
| commit | 93b4796dede916de74b21fbd637588da6a99a7ec (patch) | |
| tree | 3833de6051bb1b8d361a614743aafa56b43902e1 /tools/perf/scripts/python | |
| parent | fc9fe822f7112db23e51e2be3b886f5d8f0afdb6 (diff) | |
thp: do_huge_pmd_wp_page(): handle huge zero page
On write access to huge zero page we alloc a new huge page and clear it.
If ENOMEM, graceful fallback: we create a new pmd table and set pte around
fault address to newly allocated normal (4k) page. All other ptes in the
pmd set to normal zero page.
Signed-off-by: Kirill A. Shutemov <[email protected]>
Cc: Andrea Arcangeli <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: "H. Peter Anvin" <[email protected]>
Cc: Mel Gorman <[email protected]>
Acked-by: David Rientjes <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions