[PATCH] s390 (1/12): core s390.

From: Martin Schwidefsky
Date: Thu Apr 08 2004 - 09:30:30 EST


s390 core changes:
- Fix _raw_spin_trylock for 64 bit.
- Add clarification to s390 debug debug documentation.

diffstat:
Documentation/s390/s390dbf.txt | 6 +++---
include/asm-s390/pgalloc.h | 5 ++++-
include/asm-s390/spinlock.h | 10 ++++------
3 files changed, 11 insertions(+), 10 deletions(-)

diff -urN linux-2.6/Documentation/s390/s390dbf.txt linux-2.6-s390/Documentation/s390/s390dbf.txt
--- linux-2.6/Documentation/s390/s390dbf.txt Sun Apr 4 05:37:37 2004
+++ linux-2.6-s390/Documentation/s390/s390dbf.txt Thu Apr 8 15:21:23 2004
@@ -66,9 +66,9 @@
All debug logs have an an actual debug level (range from 0 to 6).
The default level is 3. Event and Exception functions have a 'level'
parameter. Only debug entries with a level that is lower or equal
-than the actual level are written to the log. This means that high
-priority log entries should have a low level value whereas low priority
-entries should have a high one.
+than the actual level are written to the log. This means, when
+writing events, high priority log entries should have a low level
+value whereas low priority entries should have a high one.
The actual debug level can be changed with the help of the proc-filesystem
through writing a number string "x" to the 'level' proc file which is
provided for every debug log. Debugging can be switched off completely
diff -urN linux-2.6/include/asm-s390/spinlock.h linux-2.6-s390/include/asm-s390/spinlock.h
--- linux-2.6/include/asm-s390/spinlock.h Sun Apr 4 05:38:27 2004
+++ linux-2.6-s390/include/asm-s390/spinlock.h Thu Apr 8 15:21:23 2004
@@ -70,11 +70,9 @@

extern inline int _raw_spin_trylock(spinlock_t *lp)
{
-#ifndef __s390x__
- unsigned long result, reg;
-#else /* __s390x__ */
- unsigned int result, reg;
-#endif /* __s390x__ */
+ unsigned long reg;
+ unsigned int result;
+
__asm__ __volatile(" basr %1,0\n"
"0: cs %0,%1,0(%3)"
: "=d" (result), "=&d" (reg), "=m" (lp->lock)
@@ -226,7 +224,7 @@
"0: csg %0,%1,0(%3)\n"
#endif /* __s390x__ */
: "=d" (result), "=&d" (reg), "=m" (rw->lock)
- : "a" (&rw->lock), "m" (rw->lock), "0" (0)
+ : "a" (&rw->lock), "m" (rw->lock), "0" (0UL)
: "cc", "memory" );
return result == 0;
}
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/