diff options
author | Jeff Dike <jdike@addtoit.com> | 2007-10-16 10:26:50 +0200 |
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committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-16 18:43:05 +0200 |
commit | 42fda66387daa53538ae13a2c858396aaf037158 (patch) | |
tree | 77955a91a958fde7be47cb0ff23ac9e1248217db /arch/um/kernel/tt/mem.c | |
parent | UML: remove unnecessary hostfs_getattr() (diff) | |
download | linux-42fda66387daa53538ae13a2c858396aaf037158.tar.xz linux-42fda66387daa53538ae13a2c858396aaf037158.zip |
uml: throw out CONFIG_MODE_TT
This patchset throws out tt mode, which has been non-functional for a while.
This is done in phases, interspersed with code cleanups on the affected files.
The removal is done as follows:
remove all code, config options, and files which depend on
CONFIG_MODE_TT
get rid of the CHOOSE_MODE macro, which decided whether to
call tt-mode or skas-mode code, and replace invocations with their
skas portions
replace all now-trivial procedures with their skas equivalents
There are now a bunch of now-redundant pieces of data structures, including
mode-specific pieces of the thread structure, pt_regs, and mm_context. These
are all replaced with their skas-specific contents.
As part of the ongoing style compliance project, I made a style pass over all
files that were changed. There are three such patches, one for each phase,
covering the files affected by that phase but no later ones.
I noticed that we weren't freeing the LDT state associated with a process when
it exited, so that's fixed in one of the later patches.
The last patch is a tidying patch which I've had for a while, but which caused
inexplicable crashes under tt mode. Since that is no longer a problem, this
can now go in.
This patch:
Start getting rid of tt mode support.
This patch throws out CONFIG_MODE_TT and all config options, code, and files
which depend on it.
CONFIG_MODE_SKAS is gone and everything that depends on it is included
unconditionally.
The few changed lines are in re-written Kconfig help, lines which needed
something skas-related removed from them, and a few more which weren't
strictly deletions.
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/um/kernel/tt/mem.c')
-rw-r--r-- | arch/um/kernel/tt/mem.c | 34 |
1 files changed, 0 insertions, 34 deletions
diff --git a/arch/um/kernel/tt/mem.c b/arch/um/kernel/tt/mem.c deleted file mode 100644 index d0c3c4975f28..000000000000 --- a/arch/um/kernel/tt/mem.c +++ /dev/null @@ -1,34 +0,0 @@ -/* - * Copyright (C) 2002 Jeff Dike (jdike@karaya.com) - * Licensed under the GPL - */ - -#include "linux/stddef.h" -#include "linux/mm.h" -#include "asm/uaccess.h" -#include "mem_user.h" -#include "kern_util.h" -#include "kern.h" -#include "tt.h" - -void before_mem_tt(unsigned long brk_start) -{ - if(debug) - remap_data(UML_ROUND_DOWN(&_stext), UML_ROUND_UP(&_etext), 1); - remap_data(UML_ROUND_DOWN(&_sdata), UML_ROUND_UP(&_edata), 1); - remap_data(UML_ROUND_DOWN(&__bss_start), UML_ROUND_UP(&_end), 1); -} - -#define SIZE ((CONFIG_NEST_LEVEL + CONFIG_KERNEL_HALF_GIGS) * 0x20000000) -#define START (CONFIG_TOP_ADDR - SIZE) - -unsigned long set_task_sizes_tt(unsigned long *task_size_out) -{ - unsigned long host_task_size; - - /* Round up to the nearest 4M */ - host_task_size = ROUND_4M((unsigned long) &host_task_size); - *task_size_out = START; - - return host_task_size; -} |