Files
linux/arch
John David Anglin a6b3b3fb1e Purge existing TLB entries in set_pte_at and ptep_set_wrprotect
commit 7139bc1579 upstream.

This patch goes a long way toward fixing the minifail bug, and
it  significantly improves the stability of SMP machines such as
the rp3440.  When write  protecting a page for COW, we need to
purge the existing translation.  Otherwise, the COW break
doesn't occur as expected because the TLB may still have a stale entry
which allows writes.

[jejb: fix up checkpatch errors]
Signed-off-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-02-28 05:38:39 -08:00
..
2013-01-16 18:30:44 +09:00
2013-02-28 05:38:30 -08:00