diff options
| author | Mel Gorman <[email protected]> | 2013-12-18 17:08:45 -0800 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2013-12-18 19:04:51 -0800 |
| commit | af2c1401e6f9177483be4fad876d0073669df9df (patch) | |
| tree | 630b024e7f5e53fcd73ab4d04148720185797a0a /lib/lockref.c | |
| parent | 20841405940e7be0617612d521e206e4b6b325db (diff) | |
mm: numa: guarantee that tlb_flush_pending updates are visible before page table updates
According to documentation on barriers, stores issued before a LOCK can
complete after the lock implying that it's possible tlb_flush_pending
can be visible after a page table update. As per revised documentation,
this patch adds a smp_mb__before_spinlock to guarantee the correct
ordering.
Signed-off-by: Mel Gorman <[email protected]>
Acked-by: Paul E. McKenney <[email protected]>
Reviewed-by: Rik van Riel <[email protected]>
Cc: <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'lib/lockref.c')
0 files changed, 0 insertions, 0 deletions