Jiantao Shan
c15b5c6fab
commitefb44ff64cupstream. As with most architectures, allow handling of read faults in VMAs that have VM_WRITE but without VM_READ (WRITE implies READ). Otherwise, reading before writing a write-only memory will error while reading after writing everything is fine. BTW, move the VM_EXEC judgement before VM_READ/VM_WRITE to make logic a little clearer. Cc: stable@vger.kernel.org Fixes:09cfefb7fa("LoongArch: Add memory management") Signed-off-by: Jiantao Shan <shanjiantao@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>