summaryrefslogtreecommitdiffstats
path: root/arch
diff options
context:
space:
mode:
Diffstat (limited to 'arch')
-rw-r--r--arch/ia64/kernel/fsys.S46
-rw-r--r--arch/m68k/include/asm/unistd.h5
-rw-r--r--arch/m68k/kernel/entry.S3
-rw-r--r--arch/m68knommu/kernel/syscalltable.S3
4 files changed, 49 insertions, 8 deletions
diff --git a/arch/ia64/kernel/fsys.S b/arch/ia64/kernel/fsys.S
index 3567d54f8cee..471a1e783aca 100644
--- a/arch/ia64/kernel/fsys.S
+++ b/arch/ia64/kernel/fsys.S
@@ -424,14 +424,26 @@ EX(.fail_efault, ld8 r14=[r33]) // r14 <- *set
andcm r14=r14,r17 // filter out SIGKILL & SIGSTOP
#ifdef CONFIG_SMP
- mov r17=1
- ;;
- cmpxchg4.acq r18=[r31],r17,ar.ccv // try to acquire the lock
+ // __ticket_spin_trylock(r31)
+ ld4 r17=[r31]
mov r8=EINVAL // default to EINVAL
;;
+ extr r9=r17,17,15
+ ;;
+ xor r18=r17,r9
+ adds r19=1,r17
+ ;;
+ extr.u r18=r18,0,15
+ ;;
+ cmp.eq p0,p7=0,r18
+(p7) br.cond.spnt.many .lock_contention
+ mov.m ar.ccv=r17
+ ;;
+ cmpxchg4.acq r9=[r31],r19,ar.ccv
+ ;;
+ cmp4.eq p0,p7=r9,r17
+(p7) br.cond.spnt.many .lock_contention
ld8 r3=[r2] // re-read current->blocked now that we hold the lock
- cmp4.ne p6,p0=r18,r0
-(p6) br.cond.spnt.many .lock_contention
;;
#else
ld8 r3=[r2] // re-read current->blocked now that we hold the lock
@@ -490,7 +502,17 @@ EX(.fail_efault, ld8 r14=[r33]) // r14 <- *set
(p6) br.cond.spnt.few 1b // yes -> retry
#ifdef CONFIG_SMP
- st4.rel [r31]=r0 // release the lock
+ // __ticket_spin_unlock(r31)
+ adds r31=2,r31
+ ;;
+ ld2.bias r2=[r31]
+ mov r3=65534
+ ;;
+ adds r2=2,r2
+ ;;
+ and r3=r3,r2
+ ;;
+ st2.rel [r31]=r3
#endif
SSM_PSR_I(p0, p9, r31)
;;
@@ -512,7 +534,17 @@ EX(.fail_efault, (p15) st8 [r34]=r3)
.sig_pending:
#ifdef CONFIG_SMP
- st4.rel [r31]=r0 // release the lock
+ // __ticket_spin_unlock(r31)
+ adds r31=2,r31
+ ;;
+ ld2.bias r2=[r31]
+ mov r3=65534
+ ;;
+ adds r2=2,r2
+ ;;
+ and r3=r3,r2
+ ;;
+ st2.rel [r31]=r3
#endif
SSM_PSR_I(p0, p9, r17)
;;
diff --git a/arch/m68k/include/asm/unistd.h b/arch/m68k/include/asm/unistd.h
index 60b15d0aa072..b43b36beafe3 100644
--- a/arch/m68k/include/asm/unistd.h
+++ b/arch/m68k/include/asm/unistd.h
@@ -340,10 +340,13 @@
#define __NR_set_thread_area 334
#define __NR_atomic_cmpxchg_32 335
#define __NR_atomic_barrier 336
+#define __NR_fanotify_init 337
+#define __NR_fanotify_mark 338
+#define __NR_prlimit64 339
#ifdef __KERNEL__
-#define NR_syscalls 337
+#define NR_syscalls 340
#define __ARCH_WANT_IPC_PARSE_VERSION
#define __ARCH_WANT_OLD_READDIR
diff --git a/arch/m68k/kernel/entry.S b/arch/m68k/kernel/entry.S
index 2391bdff0996..6360c437dcf5 100644
--- a/arch/m68k/kernel/entry.S
+++ b/arch/m68k/kernel/entry.S
@@ -765,4 +765,7 @@ sys_call_table:
.long sys_set_thread_area
.long sys_atomic_cmpxchg_32 /* 335 */
.long sys_atomic_barrier
+ .long sys_fanotify_init
+ .long sys_fanotify_mark
+ .long sys_prlimit64
diff --git a/arch/m68knommu/kernel/syscalltable.S b/arch/m68knommu/kernel/syscalltable.S
index b30b3eb197a5..79b1ed198c07 100644
--- a/arch/m68knommu/kernel/syscalltable.S
+++ b/arch/m68knommu/kernel/syscalltable.S
@@ -355,6 +355,9 @@ ENTRY(sys_call_table)
.long sys_set_thread_area
.long sys_atomic_cmpxchg_32 /* 335 */
.long sys_atomic_barrier
+ .long sys_fanotify_init
+ .long sys_fanotify_mark
+ .long sys_prlimit64
.rept NR_syscalls-(.-sys_call_table)/4
.long sys_ni_syscall
OpenPOWER on IntegriCloud