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| author |   Arnd Bergmann <arnd@arndb.de> | 2022-02-11 17:19:14 +0100 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2022-02-25 09:36:06 +0100 |
| commit | a5ad837843b63d4f0d90b5cd74dc8bc25a291cfd (patch) | |
| tree | 47e2d070e3cc549ab8c5cd43961f4630156a85d6 /arch/sparc/mm | |
| parent | lib/test_lockup: fix kernel pointer check for separate address spaces (diff) | |
| download | linux-dev-a5ad837843b63d4f0d90b5cd74dc8bc25a291cfd.tar.xz linux-dev-a5ad837843b63d4f0d90b5cd74dc8bc25a291cfd.zip | |
sparc64: remove CONFIG_SET_FS support
sparc64 uses address space identifiers to differentiate between kernel
and user space, using ASI_P for kernel threads but ASI_AIUS for normal
user space, with the option of changing between them.
As nothing really changes the ASI any more, just hardcode ASI_AIUS
everywhere. Kernel threads are not allowed to access __user pointers
anyway.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/sparc/mm')
| -rw-r--r-- | arch/sparc/mm/init_64.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c index 1b23639e2fcd..8b1911591581 100644 --- a/arch/sparc/mm/init_64.c +++ b/arch/sparc/mm/init_64.c @@ -709,9 +709,10 @@ static void __init inherit_prom_mappings(void) void prom_world(int enter) { - if (!enter) - set_fs(get_fs()); - + /* + * No need to change the address space any more, just flush + * the register windows + */ __asm__ __volatile__("flushw"); } |