]> git.proxmox.com Git - mirror_ubuntu-eoan-kernel.git/commit
mm: clear pte in clear_soft_dirty()
authorLaurent Dufour <ldufour@linux.vnet.ibm.com>
Fri, 6 Nov 2015 02:49:21 +0000 (18:49 -0800)
committerLinus Torvalds <torvalds@linux-foundation.org>
Fri, 6 Nov 2015 03:34:48 +0000 (19:34 -0800)
commit326c2597a3b93b8a89e0c3a2b41fd9971d095a97
treea2734ff4c8a58494e68f273ae4fc923438ed2c24
parentc8f95ed1a9ce373d20d3b09a6a9fb91c8beef27e
mm: clear pte in clear_soft_dirty()

As mentioned in the commit 56eecdb912b5 ("mm: Use ptep/pmdp_set_numa()
for updating _PAGE_NUMA bit"), architectures like ppc64 don't do tlb
flush in set_pte/pmd functions.

So when dealing with existing pte in clear_soft_dirty, the pte must be
cleared before being modified.

Signed-off-by: Laurent Dufour <ldufour@linux.vnet.ibm.com>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Cc: Pavel Emelyanov <xemul@parallels.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
fs/proc/task_mmu.c