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[PATCH] uml: x86_64 fixes

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This fixes some x86_64 bugs -

- maybe_map returns -1 on error instead of 0, which is interpreted as
  physical address 0

- removed an include of ipc.h, which isn't needed

- fixed the calculation of signal frame location

- the signal delivery code is now immune to the stack expansion check

- added a missing include

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Jeff Dike
2005-05-06 21:30:55 -07:00
committed by Linus Torvalds
parent 0f7e663dea
commit 2d58cc9a43
5 changed files with 9 additions and 5 deletions
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2
arch/um/kernel/trap_kern.c
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@@ -48,7 +48,7 @@ int handle_page_fault(unsigned long address, unsigned long ip,
goto good_area;
else if(!(vma->vm_flags & VM_GROWSDOWN))
goto out;
else if(!ARCH_IS_STACKGROW(address))
else if(is_user && !ARCH_IS_STACKGROW(address))
goto out;
else if(expand_stack(vma, address))
goto out;