linux/arch/parisc
David Hildenbrand 6d239fc78c parisc/mm: support __HAVE_ARCH_PTE_SWP_EXCLUSIVE
Let's support __HAVE_ARCH_PTE_SWP_EXCLUSIVE by using the yet-unused
_PAGE_ACCESSED location in the swap PTE.  Looking at pte_present() and
pte_none() checks, there seems to be no actual reason why we cannot use
it: we only have to make sure we're not using _PAGE_PRESENT.

Reusing this bit avoids having to steal one bit from the swap offset.

Link: https://lkml.kernel.org/r/20230113171026.582290-17-david@redhat.com
Signed-off-by: David Hildenbrand <david@redhat.com>
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: Helge Deller <deller@gmx.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-02-02 22:33:09 -08:00
..
boot Kbuild updates for v5.17 2022-01-19 11:15:19 +02:00
configs parisc: Update 32- and 64-bit defconfigs 2022-05-08 20:01:11 +02:00
include parisc/mm: support __HAVE_ARCH_PTE_SWP_EXCLUSIVE 2023-02-02 22:33:09 -08:00
kernel parisc architecture fixes for kernel v6.2-rc1: 2022-12-20 08:43:53 -06:00
lib parisc: Drop homebrewn io[read|write]64_[lo_hi|hi_lo] 2022-09-23 21:52:27 +02:00
math-emu parisc: align '*' in comment in math-emu code 2022-06-26 00:19:27 +02:00
mm - The usual batches of cleanups from Baoquan He, Muchun Song, Miaohe 2022-08-05 16:32:45 -07:00
defpalo.conf
install.sh kbuild: factor out the common installation code into scripts/install.sh 2022-05-11 21:45:53 +09:00
Kbuild kbuild: use more subdir- for visiting subdirectories while cleaning 2021-10-24 13:49:46 +09:00
Kconfig parisc: Allow CONFIG_64BIT with ARCH=parisc 2022-09-15 07:59:37 +02:00
Kconfig.debug tracing: Refactor TRACE_IRQFLAGS_SUPPORT in Kconfig 2021-08-16 11:37:21 -04:00
Makefile kbuild: remove head-y syntax 2022-10-02 18:06:03 +09:00