lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

uml: stop specially protecting kernel stacks

Browse Source 
Map all of physical memory as executable to avoid having to change stack
protections during fork and exit.

unprotect_stack is now called only from MODE_TT code, so it is marked as such.

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>
This commit is contained in:
Jeff Dike
2007-10-16 01:26:46 -07:00
committed by Linus Torvalds
parent 8d82076080
commit 5c8aaceab8
4 changed files with 7 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
arch/um/kernel/physmem.c
View File

@@ -105,7 +105,7 @@ void __init setup_physmem(unsigned long start, unsigned long reserve_end,
offset = uml_reserved - uml_physmem;
err = os_map_memory((void *) uml_reserved, physmem_fd, offset,
len - offset, 1, 1, 0);
len - offset, 1, 1, 1);
if(err < 0){
os_print_error(err, "Mapping memory");
exit(1);