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authorIngo Molnar <mingo@elte.hu>2010-03-09 17:11:53 +0100
committerIngo Molnar <mingo@elte.hu>2010-03-09 17:11:53 +0100
commit548b84166917d6f5e2296123b85ad24aecd3801d (patch)
tree0ab0300e23a02df0fe3c0579627e4998bb122c00 /arch/m68knommu
parentcfb581bcd4f8c158c6f2b48bf5e232bb9e6855c0 (diff)
parent57d54889cd00db2752994b389ba714138652e60c (diff)
Merge commit 'v2.6.34-rc1' into perf/urgent
Conflicts: tools/perf/util/probe-event.c Merge reason: Pick up -rc1 and resolve the conflict as well. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/m68knommu')
-rw-r--r--arch/m68knommu/kernel/process.c4
-rw-r--r--arch/m68knommu/kernel/ptrace.c5
-rw-r--r--arch/m68knommu/kernel/sys_m68k.c36
-rw-r--r--arch/m68knommu/kernel/syscalltable.S4
-rw-r--r--arch/m68knommu/mm/memory.c1
5 files changed, 49 insertions, 1 deletions
diff --git a/arch/m68knommu/kernel/process.c b/arch/m68knommu/kernel/process.c
index 5c9ecd427090..959cb249c759 100644
--- a/arch/m68knommu/kernel/process.c
+++ b/arch/m68knommu/kernel/process.c
@@ -221,6 +221,10 @@ int copy_thread(unsigned long clone_flags,
p->thread.usp = usp;
p->thread.ksp = (unsigned long)childstack;
+
+ if (clone_flags & CLONE_SETTLS)
+ task_thread_info(p)->tp_value = regs->d5;
+
/*
* Must save the current SFC/DFC value, NOT the value when
* the parent was last descheduled - RGH 10-08-96
diff --git a/arch/m68knommu/kernel/ptrace.c b/arch/m68knommu/kernel/ptrace.c
index 4d3828959fb0..85ed2f988f98 100644
--- a/arch/m68knommu/kernel/ptrace.c
+++ b/arch/m68knommu/kernel/ptrace.c
@@ -319,6 +319,11 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
}
#endif
+ case PTRACE_GET_THREAD_AREA:
+ ret = put_user(task_thread_info(child)->tp_value,
+ (unsigned long __user *)data);
+ break;
+
default:
ret = -EIO;
break;
diff --git a/arch/m68knommu/kernel/sys_m68k.c b/arch/m68knommu/kernel/sys_m68k.c
index b67cbc735a9b..923dd4aab875 100644
--- a/arch/m68knommu/kernel/sys_m68k.c
+++ b/arch/m68knommu/kernel/sys_m68k.c
@@ -190,3 +190,39 @@ int kernel_execve(const char *filename, char *const argv[], char *const envp[])
: "d" (__a), "d" (__b), "d" (__c));
return __res;
}
+
+asmlinkage unsigned long sys_get_thread_area(void)
+{
+ return current_thread_info()->tp_value;
+}
+
+asmlinkage int sys_set_thread_area(unsigned long tp)
+{
+ current_thread_info()->tp_value = tp;
+ return 0;
+}
+
+/* This syscall gets its arguments in A0 (mem), D2 (oldval) and
+ D1 (newval). */
+asmlinkage int
+sys_atomic_cmpxchg_32(unsigned long newval, int oldval, int d3, int d4, int d5,
+ unsigned long __user * mem)
+{
+ struct mm_struct *mm = current->mm;
+ unsigned long mem_value;
+
+ down_read(&mm->mmap_sem);
+
+ mem_value = *mem;
+ if (mem_value == oldval)
+ *mem = newval;
+
+ up_read(&mm->mmap_sem);
+ return mem_value;
+}
+
+asmlinkage int sys_atomic_barrier(void)
+{
+ /* no code needed for uniprocs */
+ return 0;
+}
diff --git a/arch/m68knommu/kernel/syscalltable.S b/arch/m68knommu/kernel/syscalltable.S
index 486837efa3d7..56dd01ded148 100644
--- a/arch/m68knommu/kernel/syscalltable.S
+++ b/arch/m68knommu/kernel/syscalltable.S
@@ -351,6 +351,10 @@ ENTRY(sys_call_table)
.long sys_pwritev /* 330 */
.long sys_rt_tgsigqueueinfo
.long sys_perf_event_open
+ .long sys_get_thread_area
+ .long sys_set_thread_area
+ .long sys_atomic_cmpxchg_32 /* 335 */
+ .long sys_atomic_barrier
.rept NR_syscalls-(.-sys_call_table)/4
.long sys_ni_syscall
diff --git a/arch/m68knommu/mm/memory.c b/arch/m68knommu/mm/memory.c
index f93b88b51f9f..d5b9e1357808 100644
--- a/arch/m68knommu/mm/memory.c
+++ b/arch/m68knommu/mm/memory.c
@@ -24,7 +24,6 @@
/*
* Map some physical address range into the kernel address space.
- * The code is copied and adapted from map_chunk().
*/
unsigned long kernel_map(unsigned long paddr, unsigned long size,