summaryrefslogtreecommitdiffstats
path: root/arch/m68k/mm/init.c
diff options
context:
space:
mode:
authorChristoph Hellwig <hch@lst.de>2021-09-16 09:04:05 +0200
committerGeert Uytterhoeven <geert@linux-m68k.org>2021-09-24 13:35:07 +0200
commit9fde0348640252c79d462c4d29a09a14e8741f5c (patch)
treed4f9ba0894c1dd7701ae122d90b7dc227130501c /arch/m68k/mm/init.c
parent8ade83390930d61c64fe3ab49081990c9d43d0d2 (diff)
downloadlinux-9fde0348640252c79d462c4d29a09a14e8741f5c.tar.gz
linux-9fde0348640252c79d462c4d29a09a14e8741f5c.tar.bz2
linux-9fde0348640252c79d462c4d29a09a14e8741f5c.zip
m68k: Remove set_fs()
Add a m68k-only set_fc helper to set the SFC and DFC registers for the few places that need to override it for special MM operations, but disconnect that from the deprecated kernel-wide set_fs() API. Note that the SFC/DFC registers are context switched, so there is no need to disable preemption. Partially based on an earlier patch from Linus Torvalds <torvalds@linux-foundation.org>. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Michael Schmitz <schmitzmic@gmail.com> Tested-by: Michael Schmitz <schmitzmic@gmail.com> Link: https://lore.kernel.org/r/20210916070405.52750-7-hch@lst.de Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Diffstat (limited to 'arch/m68k/mm/init.c')
-rw-r--r--arch/m68k/mm/init.c6
1 files changed, 0 insertions, 6 deletions
diff --git a/arch/m68k/mm/init.c b/arch/m68k/mm/init.c
index 5d749e188246..1b47bec15832 100644
--- a/arch/m68k/mm/init.c
+++ b/arch/m68k/mm/init.c
@@ -72,12 +72,6 @@ void __init paging_init(void)
if (!empty_zero_page)
panic("%s: Failed to allocate %lu bytes align=0x%lx\n",
__func__, PAGE_SIZE, PAGE_SIZE);
-
- /*
- * Set up SFC/DFC registers (user data space).
- */
- set_fs (USER_DS);
-
max_zone_pfn[ZONE_DMA] = end_mem >> PAGE_SHIFT;
free_area_init(max_zone_pfn);
}