These changes are the raw update to linux-4.4.6-rt14. Kernel sources

are taken from kernel.org, and rt patch from the rt wiki download page.

During the rebasing, the following patch collided:

Force tick interrupt and get rid of softirq magic(I70131fb85).

Collisions have been removed because its logic was found on the
source already.

Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>

5 files changed, 24 insertions, 10 deletions

diff --git a/kernel/arch/s390/hypfs/hypfs_diag.c b/kernel/arch/s390/hypfs/hypfs_diag.c
index 5eeffeefa..045035796 100644
--- a/kernel/arch/s390/hypfs/hypfs_diag.c
+++ b/kernel/arch/s390/hypfs/hypfs_diag.c
@@ -15,6 +15,7 @@
 #include <linux/string.h>
 #include <linux/vmalloc.h>
 #include <linux/mm.h>
+#include <asm/diag.h>
 #include <asm/ebcdic.h>
 #include "hypfs.h"
 
@@ -336,7 +337,7 @@ static inline __u64 phys_cpu__ctidx(enum diag204_format type, void *hdr)
 
 /* Diagnose 204 functions */
 
-static int diag204(unsigned long subcode, unsigned long size, void *addr)
+static inline int __diag204(unsigned long subcode, unsigned long size, void *addr)
 {
 	register unsigned long _subcode asm("0") = subcode;
 	register unsigned long _size asm("1") = size;
@@ -351,6 +352,12 @@ static int diag204(unsigned long subcode, unsigned long size, void *addr)
 	return _size;
 }
 
+static int diag204(unsigned long subcode, unsigned long size, void *addr)
+{
+	diag_stat_inc(DIAG_STAT_X204);
+	return __diag204(subcode, size, addr);
+}
+
 /*
  * For the old diag subcode 4 with simple data format we have to use real
  * memory. If we use subcode 6 or 7 with extended data format, we can (and
@@ -505,6 +512,7 @@ static int diag224(void *ptr)
 {
 	int rc = -EOPNOTSUPP;
 
+	diag_stat_inc(DIAG_STAT_X224);
 	asm volatile(
 		"	diag	%1,%2,0x224\n"
 		"0:	lhi	%0,0x0\n"
diff --git a/kernel/arch/s390/hypfs/hypfs_diag0c.c b/kernel/arch/s390/hypfs/hypfs_diag0c.c
index 24c747a0f..0f1927cbb 100644
--- a/kernel/arch/s390/hypfs/hypfs_diag0c.c
+++ b/kernel/arch/s390/hypfs/hypfs_diag0c.c
@@ -8,6 +8,7 @@
 
 #include <linux/slab.h>
 #include <linux/cpu.h>
+#include <asm/diag.h>
 #include <asm/hypfs.h>
 #include "hypfs.h"
 
@@ -18,6 +19,7 @@
  */
 static void diag0c(struct hypfs_diag0c_entry *entry)
 {
+	diag_stat_inc(DIAG_STAT_X00C);
 	asm volatile (
 		"	sam31\n"
 		"	diag	%0,%0,0x0c\n"
diff --git a/kernel/arch/s390/hypfs/hypfs_sprp.c b/kernel/arch/s390/hypfs/hypfs_sprp.c
index f043c3c7e..c9e5c72f7 100644
--- a/kernel/arch/s390/hypfs/hypfs_sprp.c
+++ b/kernel/arch/s390/hypfs/hypfs_sprp.c
@@ -13,6 +13,7 @@
 #include <linux/types.h>
 #include <linux/uaccess.h>
 #include <asm/compat.h>
+#include <asm/diag.h>
 #include <asm/sclp.h>
 #include "hypfs.h"
 
@@ -22,7 +23,7 @@
 
 #define DIAG304_CMD_MAX		2
 
-static unsigned long hypfs_sprp_diag304(void *data, unsigned long cmd)
+static inline unsigned long __hypfs_sprp_diag304(void *data, unsigned long cmd)
 {
 	register unsigned long _data asm("2") = (unsigned long) data;
 	register unsigned long _rc asm("3");
@@ -34,6 +35,12 @@ static unsigned long hypfs_sprp_diag304(void *data, unsigned long cmd)
 	return _rc;
 }
 
+static unsigned long hypfs_sprp_diag304(void *data, unsigned long cmd)
+{
+	diag_stat_inc(DIAG_STAT_X304);
+	return __hypfs_sprp_diag304(data, cmd);
+}
+
 static void hypfs_sprp_free(const void *data)
 {
 	free_page((unsigned long) data);
@@ -128,14 +135,14 @@ static struct hypfs_dbfs_file hypfs_sprp_file = {
 
 int hypfs_sprp_init(void)
 {
-	if (!sclp_has_sprp())
+	if (!sclp.has_sprp)
 		return 0;
 	return hypfs_dbfs_create_file(&hypfs_sprp_file);
 }
 
 void hypfs_sprp_exit(void)
 {
-	if (!sclp_has_sprp())
+	if (!sclp.has_sprp)
 		return;
 	hypfs_dbfs_remove_file(&hypfs_sprp_file);
 }
diff --git a/kernel/arch/s390/hypfs/hypfs_vm.c b/kernel/arch/s390/hypfs/hypfs_vm.c
index afbe07907..44feac38c 100644
--- a/kernel/arch/s390/hypfs/hypfs_vm.c
+++ b/kernel/arch/s390/hypfs/hypfs_vm.c
@@ -9,6 +9,7 @@
 #include <linux/errno.h>
 #include <linux/string.h>
 #include <linux/vmalloc.h>
+#include <asm/diag.h>
 #include <asm/ebcdic.h>
 #include <asm/timex.h>
 #include "hypfs.h"
@@ -66,6 +67,7 @@ static int diag2fc(int size, char* query, void *addr)
 	memset(parm_list.aci_grp, 0x40, NAME_LEN);
 	rc = -1;
 
+	diag_stat_inc(DIAG_STAT_X2FC);
 	asm volatile(
 		"	diag    %0,%1,0x2fc\n"
 		"0:\n"
diff --git a/kernel/arch/s390/hypfs/inode.c b/kernel/arch/s390/hypfs/inode.c
index 2eeb0a0f5..b2e5902bd 100644
--- a/kernel/arch/s390/hypfs/inode.c
+++ b/kernel/arch/s390/hypfs/inode.c
@@ -62,18 +62,13 @@ static void hypfs_add_dentry(struct dentry *dentry)
 	hypfs_last_dentry = dentry;
 }
 
-static inline int hypfs_positive(struct dentry *dentry)
-{
-	return d_really_is_positive(dentry) && !d_unhashed(dentry);
-}
-
 static void hypfs_remove(struct dentry *dentry)
 {
 	struct dentry *parent;
 
 	parent = dentry->d_parent;
 	mutex_lock(&d_inode(parent)->i_mutex);
-	if (hypfs_positive(dentry)) {
+	if (simple_positive(dentry)) {
 		if (d_is_dir(dentry))
 			simple_rmdir(d_inode(parent), dentry);
 		else