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Guo Ren 981bbf274b csky: Fixup wrong update_mmu_cache implementation 
In our stress test, we found some crash problem caused by:

if (!(vma->vm_flags & VM_EXEC))
	return;

in update_mmu_cache().

Seems current update_mmu_cache implementation is wrong and we retread
to the conservative implementation.

Also the usage of kmap_atomic in update_mmu_cache is risky, page-virtual
may be scheduled out and changed, so we must use preempt_disable &
pagefault_disable which is called by kmap_atomic().

Signed-off-by: Guo Ren <ren_guo@c-sky.com>
Cc: Arnd Bergmann <arnd@arndb.de>
2019-04-22 13:44:57 +08:00
..
alpha KVM: export <linux/kvm_para.h> and <asm/kvm_para.h> iif KVM is supported 2019-03-28 17:27:42 +01:00
arc syscalls: Remove start and number from syscall_get_arguments() args 2019-04-05 09:26:43 -04:00
arm ARM: SoC fixes 2019-04-07 13:46:17 -10:00
arm64 arm64: futex: Restore oldval initialization to work around buggy compilers 2019-04-18 18:17:08 +01:00
c6x syscalls: Remove start and number from syscall_set_arguments() args 2019-04-05 09:27:23 -04:00
csky csky: Fixup wrong update_mmu_cache implementation 2019-04-22 13:44:57 +08:00
h8300 syscalls: Remove start and number from syscall_get_arguments() args 2019-04-05 09:26:43 -04:00
hexagon syscalls: Remove start and number from syscall_get_arguments() args 2019-04-05 09:26:43 -04:00
ia64 syscalls: Remove start and number from syscall_set_arguments() args 2019-04-05 09:27:23 -04:00
m68k KVM: export <linux/kvm_para.h> and <asm/kvm_para.h> iif KVM is supported 2019-03-28 17:27:42 +01:00
microblaze syscalls: Remove start and number from syscall_set_arguments() args 2019-04-05 09:27:23 -04:00
mips A few minor MIPS fixes: 2019-04-09 16:27:18 -10:00
nds32 syscalls: Remove start and number from syscall_set_arguments() args 2019-04-05 09:27:23 -04:00
nios2 syscalls: Remove start and number from syscall_set_arguments() args 2019-04-05 09:27:23 -04:00
openrisc syscalls: Remove start and number from syscall_set_arguments() args 2019-04-05 09:27:23 -04:00
parisc parisc: Detect QEMU earlier in boot process 2019-04-06 19:07:55 +02:00
powerpc powerpc fixes for 5.1 #5 2019-04-13 09:03:09 -07:00
riscv RISC-V: Fix Maximum Physical Memory 2GiB option for 64bit systems 2019-04-10 09:41:40 -07:00
s390 s390 update with bug fixes for 5.1-rc6 2019-04-18 08:15:06 -07:00
sh Merge branch 'akpm' (patches from Andrew) 2019-04-05 17:08:55 -10:00
sparc sparc64/pci_sun4v: fix ATU checks for large DMA masks 2019-04-10 21:42:04 +02:00
um syscalls: Remove start and number from syscall_set_arguments() args 2019-04-05 09:27:23 -04:00
unicore32 KVM: export <linux/kvm_para.h> and <asm/kvm_para.h> iif KVM is supported 2019-03-28 17:27:42 +01:00
x86 Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-04-20 10:05:02 -07:00
xtensa xtensa fixes for v5.1-rc5 2019-04-08 17:04:42 -10:00
.gitignore
Kconfig Char/Misc driver patches for 5.1-rc1 2019-03-06 14:18:59 -08:00