Max Filippov a0fc1436f1 xtensa: add missing exclusive access state management ... The result of the s32ex opcode is recorded in the ATOMCTL special register and must be retrieved with the getex opcode. Context switch between s32ex and getex may trash the ATOMCTL register and result in duplicate update or missing update of the atomic variable. Add atomctl8 field to the struct thread_info and use getex to swap ATOMCTL bit 8 as a part of context switch. Clear exclusive access monitor on kernel entry. Cc: stable@vger.kernel.org Fixes: f7c34874f0 ("xtensa: add exclusive atomics support") Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>		2020-07-31 14:15:57 -07:00
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alpha	Kbuild updates for v5.8 (2nd)	2020-06-13 13:29:16 -07:00
arc	ARCv2: support loop buffer (LPB) disabling	2020-06-18 13:07:24 -07:00
arm	ARM: SoC fixes for v5.8	2020-07-17 15:38:22 -07:00
arm64	Various EFI fixes:	2020-07-25 13:18:42 -07:00
c6x	This time around we have 4 lines of diff in the core framework, removing a	2020-06-10 11:42:19 -07:00
csky	maccess: rename probe_kernel_{read,write} to copy_{from,to}_kernel_nofault	2020-06-17 10:57:41 -07:00
h8300	This time around we have 4 lines of diff in the core framework, removing a	2020-06-10 11:42:19 -07:00
hexagon	treewide: replace '---help---' in Kconfig files with 'help'	2020-06-14 01:57:21 +09:00
ia64	Merge branch 'hch' (maccess patches from Christoph Hellwig)	2020-06-18 12:35:51 -07:00
m68k	m68k: mm: fix node memblock init	2020-06-29 23:58:05 +10:00
microblaze	mmap locking API: convert mmap_sem comments	2020-06-09 09:39:14 -07:00
mips	Two fixes for the interrupt subsystem:	2020-07-19 11:53:08 -07:00
nds32	maccess: rename probe_kernel_{read,write} to copy_{from,to}_kernel_nofault	2020-06-17 10:57:41 -07:00
nios2	nios2 update for v5.8-rc1	2020-06-12 11:55:11 -07:00
openrisc	openrisc: fix boot oops when DEBUG_VM is enabled	2020-06-26 00:27:36 -07:00
parisc	parisc: Add atomic64_set_release() define to avoid CPU soft lockups	2020-07-21 17:16:37 +02:00
powerpc	powerpc/vas: Report proper error code for address translation failure	2020-07-15 23:09:55 +10:00
riscv	riscv: Parse all memory blocks to remove unusable memory	2020-07-24 22:08:25 -07:00
s390	s390/cpum_cf,perf: change DFLT_CCERROR counter name	2020-07-21 13:53:56 +02:00
sh	maccess: rename probe_kernel_address to get_kernel_nofault	2020-06-18 11:14:40 -07:00
sparc	treewide: replace '---help---' in Kconfig files with 'help'	2020-06-14 01:57:21 +09:00
um	maccess: rename probe_kernel_{read,write} to copy_{from,to}_kernel_nofault	2020-06-17 10:57:41 -07:00
unicore32	This time around we have 4 lines of diff in the core framework, removing a	2020-06-10 11:42:19 -07:00
x86	Misc fixes:	2020-07-25 14:25:47 -07:00
xtensa	xtensa: add missing exclusive access state management	2020-07-31 14:15:57 -07:00
.gitignore
Kconfig	treewide: replace '---help---' in Kconfig files with 'help'	2020-06-14 01:57:21 +09:00