Vladimir Isaev cb3e286f22 ARC: mm: Use max_high_pfn as a HIGHMEM zone border ... commit 1d5e4640e5df15252398c1b621f6bd432f2d7f17 upstream. Commit 4af22ded0e ("arc: fix memory initialization for systems with two memory banks") fixed highmem, but for the PAE case it causes bug messages: | BUG: Bad page state in process swapper pfn:80000 | page:(ptrval) refcount:0 mapcount:1 mapping:00000000 index:0x0 pfn:0x80000 flags: 0x0() | raw: 00000000 00000100 00000122 00000000 00000000 00000000 00000000 00000000 | raw: 00000000 | page dumped because: nonzero mapcount | Modules linked in: | CPU: 0 PID: 0 Comm: swapper Not tainted 5.12.0-rc5-00003-g1e43c377a79f #1 This is because the fix expects highmem to be always less than lowmem and uses min_low_pfn as an upper zone border for highmem. max_high_pfn should be ok for both highmem and highmem+PAE cases. Fixes: 4af22ded0e ("arc: fix memory initialization for systems with two memory banks") Signed-off-by: Vladimir Isaev <isaev@synopsys.com> Cc: Mike Rapoport <rppt@linux.ibm.com> Cc: stable@vger.kernel.org #5.8 onwards Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-05-19 10:13:10 +02:00
..
boot	ARC: build: move symlink creation to arch/arc/Makefile to avoid race	2021-01-19 18:27:23 +01:00
configs
include	ARC: mm: PAE: use 40-bit physical page mask	2021-05-19 10:13:10 +02:00
kernel	ARC: entry: fix off-by-one error in syscall number validation	2021-05-19 10:13:10 +02:00
lib
mm	ARC: mm: Use max_high_pfn as a HIGHMEM zone border	2021-05-19 10:13:10 +02:00
oprofile
plat-axs10x
plat-hsdk	ARC: [plat-hsdk] Remap CCMs super early in asm boot trampoline	2020-11-02 11:45:09 -08:00
plat-sim
plat-tb10x
Kbuild
Kconfig
Kconfig.debug
Makefile	ARC: build: move symlink creation to arch/arc/Makefile to avoid race	2021-01-19 18:27:23 +01:00