linux-toradex.git/arch/um/kernel/um_arch.c, branch v3.19

um: delete unnecessary bootmem struct page array

2014-10-13T15:15:09+00:00

1) uml kernel bootmem managed through bootmem_data->node_bootmem_map,
not the struct page array, so the array is unnecessary.

2) the bootmem struct page array has been pointed by a *local* pointer,
struct page *map, in init_maps function. The array can be accessed only
in init_maps's scope. As a result, uml kernel wastes about 1% of total
memory.

Signed-off-by: Honggang Li 
Signed-off-by: Richard Weinberger

um: Remove unused declarations from

2013-11-17T10:39:22+00:00

_end is used, but it's already provided by , so use that.

Signed-off-by: Geert Uytterhoeven 
Cc: Richard Weinberger 
Cc: user-mode-linux-devel@lists.sourceforge.net
Signed-off-by: Richard Weinberger

um: Rewrite show_stack()

2013-11-17T10:27:25+00:00

Currently on UML stack traces are not very reliable and both
x86 and x86_64 have their on implementations.
This patch unifies both and adds support to outline unreliable
functions calls.

Signed-off-by: Richard Weinberger

um: get rid of pointless include "..." where include <...> will do

2012-10-09T20:28:45+00:00

Signed-off-by: Al Viro 
Signed-off-by: Richard Weinberger

um: Use generic init_task

2012-05-05T11:00:26+00:00

Same code. Use the generic version.

Signed-off-by: Thomas Gleixner 
Acked-by: Richard Weinberger 
Link: http://lkml.kernel.org/r/20120503085035.592937512@linutronix.de

um: distribute exports to where exported stuff is defined

2011-11-02T13:15:36+00:00

ksyms.c is down to the stuff defined in various USER_OBJS

Signed-off-by: Al Viro 
Signed-off-by: Richard Weinberger

uml: deal with inaccessible address space start

2008-06-06T18:29:10+00:00

This patch makes os_get_task_size locate the bottom of the address space,
as well as the top.  This is for systems which put a lower limit on mmap
addresses.  It works by manually scanning pages from zero onwards until a
valid page is found.

Because the bottom of the address space may not be zero, it's not
sufficient to assume the top of the address space is the size of the
address space.  The size is the difference between the top address and
bottom address.

[jdike@addtoit.com: changed the name to reflect that this function is
supposed to return the top of the process address space, not its size and
changed the return value to reflect that.  Also some minor formatting
changes]
Signed-off-by: Tom Spink 
Signed-off-by: Jeff Dike 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

uml: physical memory shouldn't include initial stack

2008-05-13T15:02:22+00:00

The top of physical memory should be below the initial process stack, not the
top of the address space, at least for as long as the stack isn't known to the
kernel VM system and appropriately reserved.

Cc: "Christopher S. Aker" 
Signed-off-by: Jeff Dike 
Cc: WANG Cong 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

uml: style fixes

2008-05-13T15:02:21+00:00

A few random style fixes.

Signed-off-by: Jeff Dike 
Cc: WANG Cong 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

arch/um/kernel/um_arch.c: some small improvements

2008-04-28T15:58:28+00:00

Make some small improvements for arch/um/kernel/um_arch.c.

Signed-off-by: WANG Cong 
Acked-by: Jeff Dike 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds