[GIT PULL] parisc fixes for 3.4-rc1

James Bottomley
2012-08-31T16:01:11Z

This is a set of two bug fixes. One is the ATOMIC problem which is now
causing a compile failure in certain situations. The other is
mishandling of PER_LINUX32 which may also cause user visible effects.

The patches are here:

git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6.git parisc-fixes

The short changelog is:

Jiri Kosina (1):
fix personality flag check in copy_thread()

Mel Gorman (1):
Redefine ATOMIC_INIT and ATOMIC64_INIT to drop the casts

And the diffstat:

arch/parisc/include/asm/atomic.h | 4 ++--
arch/parisc/kernel/process.c | 2 +-
arch/parisc/kernel/sys_parisc.c | 8 ++++----
3 files changed, 7 insertions(+), 7 deletions(-)

Full diff below.

James

---

diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm/atomic.h
index 6c6defc..af9cf30 100644
--- a/arch/parisc/include/asm/atomic.h
+++ b/arch/parisc/include/asm/atomic.h
@@ -141,7 +141,7 @@ static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)

#define atomic_sub_and_test(i,v) (atomic_sub_return((i),(v)) == 0)

-#define ATOMIC_INIT(i) ((atomic_t) { (i) })
+#define ATOMIC_INIT(i) { (i) }

#define smp_mb__before_atomic_dec() smp_mb()
#define smp_mb__after_atomic_dec() smp_mb()
@@ -150,7 +150,7 @@ static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)

#ifdef CONFIG_64BIT

-#define ATOMIC64_INIT(i) ((atomic64_t) { (i) })
+#define ATOMIC64_INIT(i) { (i) }

static __inline__ s64
__atomic64_add_return(s64 i, atomic64_t *v)
diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index d4b94b3..2c05a92 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -309,7 +309,7 @@ copy_thread(unsigned long clone_flags, unsigned long usp,
cregs->ksp = (unsigned long)stack
+ (pregs->gr[21] & (THREAD_SIZE - 1));
cregs->gr[30] = usp;
- if (p->personality == PER_HPUX) {
+ if (personality(p->personality) == PER_HPUX) {
#ifdef CONFIG_HPUX
cregs->kpc = (unsigned long) &hpux_child_return;
#else
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index c9b9322..7426e40 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -225,12 +225,12 @@ long parisc_personality(unsigned long personality)
long err;

if (personality(current->personality) == PER_LINUX32
- && personality == PER_LINUX)
- personality = PER_LINUX32;
+ && personality(personality) == PER_LINUX)
+ personality = (personality & ~PER_MASK) | PER_LINUX32;

err = sys_personality(personality);
- if (err == PER_LINUX32)
- err = PER_LINUX;
+ if (personality(err) == PER_LINUX32)
+ err = (err & ~PER_MASK) | PER_LINUX;

return err;
}