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authorPaolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>2005-05-28 15:52:04 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-05-28 16:46:14 -0700
commit8e21683bb458c73c6fe87844202a64eac730995e (patch)
treea8fcfafdbbdec7e4e2513cc0304ad49f81658f92
parent[PATCH] uml: fixlet for arch_prctl_skas (diff)
downloadlinux-dev-8e21683bb458c73c6fe87844202a64eac730995e.tar.xz
linux-dev-8e21683bb458c73c6fe87844202a64eac730995e.zip
[PATCH] uml: remove jail mode + other leftovers
This var is currently useless, as it's apparent from reading the code. Until 2.6.11 it was used in some code related to jail mode, in the same proc.: if(jail){ while(!reading) sched_yield(); } jail mode has been dropped, together with that use, so let's finish dropping this. Also, remove some other useless definitions I met. Acked-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
-rw-r--r--arch/um/kernel/tt/process_kern.c8
-rw-r--r--arch/um/kernel/um_arch.c6
-rw-r--r--include/asm-um/pgtable.h8
3 files changed, 1 insertions, 21 deletions
diff --git a/arch/um/kernel/tt/process_kern.c b/arch/um/kernel/tt/process_kern.c
index df810ca8fc12..776310fd5b8b 100644
--- a/arch/um/kernel/tt/process_kern.c
+++ b/arch/um/kernel/tt/process_kern.c
@@ -32,10 +32,6 @@ void *switch_to_tt(void *prev, void *next, void *last)
unsigned long flags;
int err, vtalrm, alrm, prof, cpu;
char c;
- /* jailing and SMP are incompatible, so this doesn't need to be
- * made per-cpu
- */
- static int reading;
from = prev;
to = next;
@@ -59,13 +55,11 @@ void *switch_to_tt(void *prev, void *next, void *last)
c = 0;
set_current(to);
- reading = 0;
err = os_write_file(to->thread.mode.tt.switch_pipe[1], &c, sizeof(c));
if(err != sizeof(c))
panic("write of switch_pipe failed, err = %d", -err);
- reading = 1;
- if(from->thread.mode.tt.switch_pipe[0] == -1)
+ if(from->thread.mode.tt.switch_pipe[0] == -1)
os_kill_process(os_getpid(), 0);
err = os_read_file(from->thread.mode.tt.switch_pipe[0], &c, sizeof(c));
diff --git a/arch/um/kernel/um_arch.c b/arch/um/kernel/um_arch.c
index 4d10ec372a67..418427107b29 100644
--- a/arch/um/kernel/um_arch.c
+++ b/arch/um/kernel/um_arch.c
@@ -111,12 +111,6 @@ struct seq_operations cpuinfo_op = {
.show = show_cpuinfo,
};
-pte_t * __bad_pagetable(void)
-{
- panic("Someone should implement __bad_pagetable");
- return(NULL);
-}
-
/* Set in linux_main */
unsigned long host_task_size;
unsigned long task_size;
diff --git a/include/asm-um/pgtable.h b/include/asm-um/pgtable.h
index 510e513c7f88..a88040920311 100644
--- a/include/asm-um/pgtable.h
+++ b/include/asm-um/pgtable.h
@@ -114,17 +114,9 @@ extern unsigned long end_iomem;
extern unsigned long pg0[1024];
/*
- * BAD_PAGETABLE is used when we need a bogus page-table, while
- * BAD_PAGE is used for a bogus page.
- *
* ZERO_PAGE is a global shared page that is always zero: used
* for zero-mapped memory areas etc..
*/
-extern pte_t __bad_page(void);
-extern pte_t * __bad_pagetable(void);
-
-#define BAD_PAGETABLE __bad_pagetable()
-#define BAD_PAGE __bad_page()
#define ZERO_PAGE(vaddr) virt_to_page(empty_zero_page)