MIPS doesn't really have a proper pte_special implementation, just
stubs. It turns out they were not enough to make get_user_pages_fast
work, so drop the select. This means get_user_pages_fast won't
actually use the fast path for non-hugepage mappings, so someone who
actually knows about mips page table management should look into
adding real pte_special support.
Fixes: eb9488e58bbc ("MIPS: use the generic get_user_pages_fast code")
Reported-by: Guenter Roeck <linux@xxxxxxxxxxxx>
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
arch/mips/Kconfig | 1 -
1 file changed, 1 deletion(-)
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index b1e42f0e4ed0..7957d3457156 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -6,7 +6,6 @@ config MIPS
select ARCH_BINFMT_ELF_STATE if MIPS_FP_SUPPORT
select ARCH_CLOCKSOURCE_DATA
select ARCH_HAS_ELF_RANDOMIZE
- select ARCH_HAS_PTE_SPECIAL
select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
select ARCH_HAS_UBSAN_SANITIZE_ALL
select ARCH_SUPPORTS_UPROBES
--
2.20.1
