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authorMartin Schwidefsky <schwidefsky@de.ibm.com>2005-06-05 00:43:32 +0200
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-06-05 02:13:00 +0200
commit595bf2aacae96d0f87352a1ff5476b79e52e212f (patch)
tree049de411ab06dd7d32565c04231d0ff965eb8f9f /arch
parent[PATCH] s390: uml ptrace fixes (diff)
downloadlinux-595bf2aacae96d0f87352a1ff5476b79e52e212f.tar.xz
linux-595bf2aacae96d0f87352a1ff5476b79e52e212f.zip
[PATCH] s390: in_interrupt vs. in_atomic
The condition for no context in do_exception checks for hard and soft interrupts by using in_interrupt() but not for preemption. This is bad for the users of __copy_from/to_user_inatomic because the fault handler might call schedule although the preemption count is != 0. Use in_atomic() instead in_interrupt(). Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/s390/mm/fault.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c
index 80306bc8c799..75fde949d125 100644
--- a/arch/s390/mm/fault.c
+++ b/arch/s390/mm/fault.c
@@ -207,7 +207,7 @@ do_exception(struct pt_regs *regs, unsigned long error_code, int is_protection)
* we are not in an interrupt and that there is a
* user context.
*/
- if (user_address == 0 || in_interrupt() || !mm)
+ if (user_address == 0 || in_atomic() || !mm)
goto no_context;
/*