Forward to 2.6.33-rc8

Merge branch 'linus' into rt/head with a pile of conflicts.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

3 files changed, 41 insertions, 9 deletions

diff --git a/arch/x86/vdso/Makefile b/arch/x86/vdso/Makefile
index 88112b49f02c..6b4ffedb93c9 100644
--- a/arch/x86/vdso/Makefile
+++ b/arch/x86/vdso/Makefile
@@ -122,7 +122,7 @@ quiet_cmd_vdso = VDSO    $@
                        $(VDSO_LDFLAGS) $(VDSO_LDFLAGS_$(filter %.lds,$(^F))) \
                        -Wl,-T,$(filter %.lds,$^) $(filter %.o,$^)
 
-VDSO_LDFLAGS = -fPIC -shared $(call ld-option, -Wl$(comma)--hash-style=sysv)
+VDSO_LDFLAGS = -fPIC -shared $(call cc-ldoption, -Wl$(comma)--hash-style=sysv)
 GCOV_PROFILE := n
 
 #
diff --git a/arch/x86/vdso/vclock_gettime.c b/arch/x86/vdso/vclock_gettime.c
index cd36532096b0..e1b68a559338 100644
--- a/arch/x86/vdso/vclock_gettime.c
+++ b/arch/x86/vdso/vclock_gettime.c
@@ -47,11 +47,11 @@ notrace static noinline int do_realtime(struct timespec *ts)
 {
         unsigned long seq, ns;
         do {
-                seq = read_atomic_seqbegin(&gtod->lock);
+                seq = read_raw_seqbegin(&gtod->lock);
                 ts->tv_sec = gtod->wall_time_sec;
                 ts->tv_nsec = gtod->wall_time_nsec;
                 ns = vgetns();
-        } while (unlikely(read_atomic_seqretry(&gtod->lock, seq)));
+        } while (unlikely(read_raw_seqretry(&gtod->lock, seq)));
         timespec_add_ns(ts, ns);
         return 0;
 }
@@ -76,24 +76,57 @@ notrace static noinline int do_monotonic(struct timespec *ts)
 {
         unsigned long seq, ns, secs;
         do {
-                seq = read_atomic_seqbegin(&gtod->lock);
+                seq = read_raw_seqbegin(&gtod->lock);
                 secs = gtod->wall_time_sec;
                 ns = gtod->wall_time_nsec + vgetns();
                 secs += gtod->wall_to_monotonic.tv_sec;
                 ns += gtod->wall_to_monotonic.tv_nsec;
-        } while (unlikely(read_atomic_seqretry(&gtod->lock, seq)));
+        } while (unlikely(read_raw_seqretry(&gtod->lock, seq)));
+        vset_normalized_timespec(ts, secs, ns);
+        return 0;
+}
+
+notrace static noinline int do_realtime_coarse(struct timespec *ts)
+{
+        unsigned long seq;
+        do {
+                seq = read_raw_seqbegin(&gtod->lock);
+                ts->tv_sec = gtod->wall_time_coarse.tv_sec;
+                ts->tv_nsec = gtod->wall_time_coarse.tv_nsec;
+        } while (unlikely(read_raw_seqretry(&gtod->lock, seq)));
+        return 0;
+}
+
+notrace static noinline int do_monotonic_coarse(struct timespec *ts)
+{
+        unsigned long seq, ns, secs;
+        do {
+                seq = read_raw_seqbegin(&gtod->lock);
+                secs = gtod->wall_time_coarse.tv_sec;
+                ns = gtod->wall_time_coarse.tv_nsec;
+                secs += gtod->wall_to_monotonic.tv_sec;
+                ns += gtod->wall_to_monotonic.tv_nsec;
+        } while (unlikely(read_raw_seqretry(&gtod->lock, seq)));
         vset_normalized_timespec(ts, secs, ns);
         return 0;
 }
 
 notrace int __vdso_clock_gettime(clockid_t clock, struct timespec *ts)
 {
-        if (likely(gtod->sysctl_enabled && gtod->clock.vread))
+        if (likely(gtod->sysctl_enabled))
                 switch (clock) {
                 case CLOCK_REALTIME:
-                        return do_realtime(ts);
+                        if (likely(gtod->clock.vread))
+                                return do_realtime(ts);
+                        break;
                 case CLOCK_MONOTONIC:
-                        return do_monotonic(ts);
+                        if (likely(gtod->clock.vread))
+                                return do_monotonic(ts);
+                        break;
+                case CLOCK_REALTIME_COARSE:
+                        return do_realtime_coarse(ts);
+                case CLOCK_MONOTONIC_COARSE:
+                        return do_monotonic_coarse(ts);
                 }
         return vdso_fallback_gettime(clock, ts);
 }
diff --git a/arch/x86/vdso/vdso32-setup.c b/arch/x86/vdso/vdso32-setup.c
index 58bc00f68b12..02b442e92007 100644
--- a/arch/x86/vdso/vdso32-setup.c
+++ b/arch/x86/vdso/vdso32-setup.c
@@ -393,7 +393,6 @@ static ctl_table abi_table2[] = {
 
 static ctl_table abi_root_table2[] = {
         {
-                .ctl_name = CTL_ABI,
                 .procname = "abi",
                 .mode = 0555,
                 .child = abi_table2