trivial s390 fixes
diff -urN linux-2.5.59/arch/s390/kernel/setup.c
linux-2.5.59-s390/arch/s390/kernel/setup.c
--- linux-2.5.59/arch/s390/kernel/setup.c Fri Jan 17 03:21:38 2003
+++ linux-2.5.59-s390/arch/s390/kernel/setup.c Mon Feb 3 15:20:40 2003
@@ -551,7 +551,7 @@
static void *c_start(struct seq_file *m, loff_t *pos)
{
- return *pos <= NR_CPUS ? (void *)((unsigned long) *pos + 1) : NULL;
+ return *pos < NR_CPUS ? (void *)((unsigned long) *pos + 1) : NULL;
}
static void *c_next(struct seq_file *m, void *v, loff_t *pos)
{
diff -urN linux-2.5.59/arch/s390x/kernel/setup.c
linux-2.5.59-s390/arch/s390x/kernel/setup.c
--- linux-2.5.59/arch/s390x/kernel/setup.c Fri Jan 17 03:22:02 2003
+++ linux-2.5.59-s390/arch/s390x/kernel/setup.c Mon Feb 3 15:20:40 2003
@@ -545,7 +545,7 @@
static void *c_start(struct seq_file *m, loff_t *pos)
{
- return *pos <= NR_CPUS ? (void *)((unsigned long) *pos + 1) : NULL;
+ return *pos < NR_CPUS ? (void *)((unsigned long) *pos + 1) : NULL;
}
static void *c_next(struct seq_file *m, void *v, loff_t *pos)
{
diff -urN linux-2.5.59/include/asm-s390/spinlock.h
linux-2.5.59-s390/include/asm-s390/spinlock.h
--- linux-2.5.59/include/asm-s390/spinlock.h Fri Jan 17 03:23:01 2003
+++ linux-2.5.59-s390/include/asm-s390/spinlock.h Mon Feb 3 15:20:40 2003
@@ -122,4 +122,17 @@
: "+m" ((rw)->lock) : "a" (&(rw)->lock) \
: "2", "3", "cc" )
+extern inline int _raw_write_trylock(rwlock_t *rw)
+{
+ unsigned int result, reg;
+
+ __asm__ __volatile__(" lhi %0,1\n"
+ " sll %0,31\n"
+ " basr %1,0\n"
+ "0: cs %0,%1,0(%3)\n"
+ : "=&d" (result), "=&d" (reg), "+m" (rw->lock)
+ : "a" (&rw->lock) : "cc" );
+ return !result;
+}
+
#endif /* __ASM_SPINLOCK_H */
diff -urN linux-2.5.59/include/asm-s390x/spinlock.h
linux-2.5.59-s390/include/asm-s390x/spinlock.h
--- linux-2.5.59/include/asm-s390x/spinlock.h Fri Jan 17 03:21:41 2003
+++ linux-2.5.59-s390/include/asm-s390x/spinlock.h Mon Feb 3 15:20:40 2003
@@ -139,5 +139,17 @@
: "a" (&(rw)->lock), "i" (__DIAG44_OPERAND) \
: "2", "3", "cc" )
+extern inline int _raw_write_trylock(rwlock_t *rw)
+{
+ unsigned int result, reg;
+
+ __asm__ __volatile__(" llihh %0,0x8000\n"
+ " basr %1,0\n"
+ "0: csg %0,%1,0(%3)\n"
+ : "=&d" (result), "=&d" (reg), "+m" (rw->lock)
+ : "a" (&rw->lock) : "cc" );
+ return !result;
+}
+
#endif /* __ASM_SPINLOCK_H */
-
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