tree 3b5f33348ea6302f3d6878f1c96e1631c4df9b0f
parent 36e2c7421f02a22f71c9283e55fdb672a9eb58e7
author Christoph Hellwig <hch@lst.de> 1599142955 +0200
committer Al Viro <viro@zeniv.linux.org.uk> 1599618092 -0400

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>