Jessica Clarke bd05220c7b arch/ia64: Restore arch-specific pgd_offset_k implementation ... IA-64 is special and treats pgd_offset_k() differently to pgd_offset(), using different formulae to calculate the indices into the kernel and user PGDs. The index into the user PGDs takes into account the region number, but the index into the kernel (init_mm) PGD always assumes a predefined kernel region number. Commit 974b9b2c68 ("mm: consolidate pte_index() and pte_offset_*() definitions") made IA-64 use a generic pgd_offset_k() which incorrectly used pgd_index() for kernel page tables. As a result, the index into the kernel PGD was going out of bounds and the kernel hung during early boot. Allow overrides of pgd_offset_k() and override it on IA-64 with the old implementation that will correctly index the kernel PGD. Fixes: 974b9b2c68 ("mm: consolidate pte_index() and pte_offset_*() definitions") Reported-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Signed-off-by: Jessica Clarke <jrtc27@jrtc27.com> Tested-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Acked-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>		2020-08-17 21:50:54 +03:00
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configs	Char/Misc driver patches for 5.7-rc1	2020-04-03 13:22:40 -07:00
hp/common	docs: fix references for DMA*.txt files	2020-06-26 10:01:32 -06:00
include	arch/ia64: Restore arch-specific pgd_offset_k implementation	2020-08-17 21:50:54 +03:00
kernel	all arch: remove system call sys_sysctl	2020-08-14 19:56:56 -07:00
lib	fix a braino in ia64 uaccess csum changes	2020-06-03 16:18:09 -04:00
mm	mm/ia64: use general page fault accounting	2020-08-12 10:58:03 -07:00
oprofile	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
pci	ia64: remove support for machvecs	2019-08-16 14:32:26 -07:00
scripts	ia64: convert unwcheck.py to python3	2018-03-05 14:35:01 -08:00
uv	ia64: remove support for machvecs	2019-08-16 14:32:26 -07:00
install.sh	kbuild: use INSTALLKERNEL to select customized installkernel script	2009-09-20 12:18:14 +02:00
Kconfig	dma-mapping: make support for dma ops optional	2020-07-19 09:29:23 +02:00
Kconfig.debug	ia64: remove support for machvecs	2019-08-16 14:32:26 -07:00
Makefile	kbuild: fix broken builds because of GZIP,BZIP2,LZOP variables	2020-06-11 20:14:41 +09:00
module.lds	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00