diff options
| author | Naoya Horiguchi <[email protected]> | 2016-05-20 16:58:50 -0700 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2016-05-20 17:58:30 -0700 |
| commit | e570f56cccd215db68e50870ee74b7d9c0022109 (patch) | |
| tree | 0db14373c0f65bcc7360995920b8ed0e46a0d5de /tools/perf/scripts/python/bin/event_analyzing_sample-report | |
| parent | 29b52de182acf50f85a8284ad39104d84c9bbf57 (diff) | |
mm: check_new_page_bad() directly returns in __PG_HWPOISON case
Currently we check page->flags twice for "HWPoisoned" case of
check_new_page_bad(), which can cause a race with unpoisoning.
This race unnecessarily taints kernel with "BUG: Bad page state".
check_new_page_bad() is the only caller of bad_page() which is
interested in __PG_HWPOISON, so let's move the hwpoison related code in
bad_page() to it.
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Naoya Horiguchi <[email protected]>
Acked-by: Mel Gorman <[email protected]>
Cc: Vlastimil Babka <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/bin/event_analyzing_sample-report')
0 files changed, 0 insertions, 0 deletions