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authorChristoph Hellwig <hch@lst.de>2020-09-03 16:22:35 +0200
committerAl Viro <viro@zeniv.linux.org.uk>2020-09-08 22:21:32 -0400
commit5e6e9852d6f76e01b2e6803c74258afa5b432bc5 (patch)
tree3b5f33348ea6302f3d6878f1c96e1631c4df9b0f /arch/arc
parent36e2c7421f02a22f71c9283e55fdb672a9eb58e7 (diff)
uaccess: add infrastructure for kernel builds with set_fs()
Add a CONFIG_SET_FS option that is selected by architecturess that implement set_fs, which is all of them initially. If the option is not set stubs for routines related to overriding the address space are provided so that architectures can start to opt out of providing set_fs. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'arch/arc')
-rw-r--r--arch/arc/Kconfig1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
index ba00c4e1e1c2..c49f5754a11e 100644
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -48,6 +48,7 @@ config ARC
select PCI_SYSCALL if PCI
select PERF_USE_VMALLOC if ARC_CACHE_VIPT_ALIASING
select HAVE_ARCH_JUMP_LABEL if ISA_ARCV2 && !CPU_ENDIAN_BE32
+ select SET_FS
config ARCH_HAS_CACHE_LINE_SIZE
def_bool y