diff options
| author | Mel Gorman <[email protected]> | 2013-12-18 17:08:36 -0800 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2013-12-18 19:04:51 -0800 |
| commit | 5a6dac3ec5f583cc8ee7bc53b5500a207c4ca433 (patch) | |
| tree | 471c00fcd2c7666cdf91132c6557efb34264ace6 /include/linux/debugobjects.h | |
| parent | 67f87463d3a3362424efcbe8b40e4772fd34fc61 (diff) | |
mm: numa: do not clear PMD during PTE update scan
If the PMD is flushed then a parallel fault in handle_mm_fault() will
enter the pmd_none and do_huge_pmd_anonymous_page() path where it'll
attempt to insert a huge zero page. This is wasteful so the patch
avoids clearing the PMD when setting pmd_numa.
Signed-off-by: Mel Gorman <[email protected]>
Reviewed-by: Rik van Riel <[email protected]>
Cc: Alex Thorlton <[email protected]>
Cc: <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'include/linux/debugobjects.h')
0 files changed, 0 insertions, 0 deletions