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authorRoland McGrath <roland@redhat.com>2008-04-28 17:30:37 +1000
committerPaul Mackerras <paulus@samba.org>2008-05-14 22:31:33 +1000
commit7a10174eeafe737f3ccfcece5bdff749c3b044e0 (patch)
tree96d3139ed19153e3369683d6b71cd74852fd1ef5 /arch/ppc
parent140b932f8cb6cced10b96860651a198b1b89cbb9 (diff)
[POWERPC] Define and use TLF_RESTORE_SIGMASK
Replace TIF_RESTORE_SIGMASK with TLF_RESTORE_SIGMASK and define our own set_restore_sigmask() function. This saves the costly SMP-safe set_bit operation, which we do not need for the sigmask flag since TIF_SIGPENDING always has to be set too. Signed-off-by: Roland McGrath <roland@redhat.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/ppc')
-rw-r--r--arch/ppc/kernel/entry.S4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/ppc/kernel/entry.S b/arch/ppc/kernel/entry.S
index 5f3a5d068a5..fcd830a292e 100644
--- a/arch/ppc/kernel/entry.S
+++ b/arch/ppc/kernel/entry.S
@@ -647,7 +647,7 @@ user_exc_return: /* r10 contains MSR_KERNEL here */
/* Check current_thread_info()->flags */
rlwinm r9,r1,0,0,18
lwz r9,TI_FLAGS(r9)
- andi. r0,r9,(_TIF_SIGPENDING|_TIF_RESTORE_SIGMASK|_TIF_NEED_RESCHED)
+ andi. r0,r9,_TIF_USER_WORK_MASK
bne do_work
restore_user:
@@ -898,7 +898,7 @@ recheck:
lwz r9,TI_FLAGS(r9)
andi. r0,r9,_TIF_NEED_RESCHED
bne- do_resched
- andi. r0,r9,_TIF_SIGPENDING
+ andi. r0,r9,_TIF_USER_WORK_MASK
beq restore_user
do_user_signal: /* r10 contains MSR_KERNEL here */
ori r10,r10,MSR_EE