leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity
a00196a272
linux/arch
History
Nicholas Piggin a00196a272 powerpc/64s: __find_linux_pte() synchronization vs pmdp_invalidate() 
The change to pmdp_invalidate() to mark the pmd with _PAGE_INVALID
broke the synchronisation against lock free lookups,
__find_linux_pte()'s pmd_none() check no longer returns true for such
cases.

Fix this by adding a check for this condition as well.

Fixes: da7ad366b4 ("powerpc/mm/book3s: Update pmd_present to look at _PAGE_PRESENT bit")
Cc: stable@vger.kernel.org # v4.20+
Suggested-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2019-06-07 16:28:28 +10:00
..
alpha treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 47 2019-05-24 17:27:13 +02:00
arc treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
arm The usual smattering of fixes and tunings that came in too late for the 2019-05-26 13:45:15 -07:00
arm64 The usual smattering of fixes and tunings that came in too late for the 2019-05-26 13:45:15 -07:00
c6x treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 36 2019-05-24 17:27:11 +02:00
csky treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
h8300 treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
hexagon treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
ia64 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 47 2019-05-24 17:27:13 +02:00
m68k treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 74 2019-05-24 17:36:47 +02:00
microblaze treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mips treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 102 2019-05-24 17:39:00 +02:00
nds32 treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
nios2 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13 2019-05-21 11:28:45 +02:00
openrisc treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
parisc treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
powerpc powerpc/64s: __find_linux_pte() synchronization vs pmdp_invalidate() 2019-06-07 16:28:28 +10:00
riscv treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 120 2019-05-24 17:39:02 +02:00
s390 KVM: s390: fix memory slot handling for KVM_SET_USER_MEMORY_REGION 2019-05-24 21:27:14 +02:00
sh treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
sparc treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
um treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
unicore32 Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-05-19 10:23:24 -07:00
x86 The usual smattering of fixes and tunings that came in too late for the 2019-05-26 13:45:15 -07:00
xtensa treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
.gitignore
Kconfig Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-05-16 11:00:20 -07:00