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authorBodo Stroesser <bstroesser@fujitsu-siemens.com>2005-11-07 00:58:55 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2005-11-07 07:53:31 -0800
commit858259cf7d1c443c836a2022b78cb281f0a9b95e (patch)
tree7d306450dd0dfa907bbee1d95f96191c67f74232 /arch/um/kernel/skas/process.c
parente763b793f7e5c09a859fc420eb0de385d80cf636 (diff)
downloadop-kernel-dev-858259cf7d1c443c836a2022b78cb281f0a9b95e.zip
op-kernel-dev-858259cf7d1c443c836a2022b78cb281f0a9b95e.tar.gz
[PATCH] uml: maintain own LDT entries
Patch imlements full LDT handling in SKAS: * UML holds it's own LDT table, used to deliver data on modify_ldt(READ) * UML disables the default_ldt, inherited from the host (SKAS3) or resets LDT entries, set by host's clib and inherited in SKAS0 * A new global variable skas_needs_stub is inserted, that can be used to decide, whether stub-pages must be supported or not. * Uses the syscall-stub to replace missing PTRACE_LDT (therefore, write_ldt_entry needs to be modified) Signed-off-by: Bodo Stroesser <bstroesser@fujitsu-siemens.com> Signed-off-by: Jeff Dike <jdike@addtoit.com> Cc: Paolo Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/um/kernel/skas/process.c')
-rw-r--r--arch/um/kernel/skas/process.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/um/kernel/skas/process.c b/arch/um/kernel/skas/process.c
index 42f2da6..599d679 100644
--- a/arch/um/kernel/skas/process.c
+++ b/arch/um/kernel/skas/process.c
@@ -381,9 +381,9 @@ int copy_context_skas0(unsigned long new_stack, int pid)
}
/*
- * This is used only, if proc_mm is available, while PTRACE_FAULTINFO
- * isn't. Opening /proc/mm creates a new mm_context, which lacks the stub-pages
- * Thus, we map them using /proc/mm-fd
+ * This is used only, if stub pages are needed, while proc_mm is
+ * availabl. Opening /proc/mm creates a new mm_context, which lacks
+ * the stub-pages. Thus, we map them using /proc/mm-fd
*/
void map_stub_pages(int fd, unsigned long code,
unsigned long data, unsigned long stack)
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