Merge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6

* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6:
  [S390] More verbose show_mem() like other architectures.
  [S390] Make use of kretprobe_assert.
  [S390] Wire up signald, timerfd and eventfd syscalls.
  [S390] Wire up sys_utimensat.
  [S390] cio: Update documentation.

4 files changed, 57 insertions, 16 deletions

diff --git a/arch/s390/kernel/compat_wrapper.S b/arch/s390/kernel/compat_wrapper.S
index 32a69a1..acc4154 100644
--- a/arch/s390/kernel/compat_wrapper.S
+++ b/arch/s390/kernel/compat_wrapper.S
@@ -1682,3 +1682,31 @@ compat_sys_utimes_wrapper:
 	llgtr	%r2,%r2			# char *
 	llgtr	%r3,%r3			# struct compat_timeval *
 	jg	compat_sys_utimes
+
+	.globl	compat_sys_utimensat_wrapper
+compat_sys_utimensat_wrapper:
+	llgfr	%r2,%r2			# unsigned int
+	llgtr	%r3,%r3			# char *
+	llgtr	%r4,%r4			# struct compat_timespec *
+	lgfr	%r5,%r5			# int
+	jg	compat_sys_utimensat
+
+	.globl	compat_sys_signalfd_wrapper
+compat_sys_signalfd_wrapper:
+	lgfr	%r2,%r2			# int
+	llgtr	%r3,%r3			# compat_sigset_t *
+	llgfr	%r4,%r4			# compat_size_t
+	jg	compat_sys_signalfd
+
+	.globl	compat_sys_timerfd_wrapper
+compat_sys_timerfd_wrapper:
+	lgfr	%r2,%r2			# int
+	lgfr	%r3,%r3			# int
+	lgfr	%r4,%r4			# int
+	llgtr	%r5,%r5			# struct compat_itimerspec *
+	jg	compat_sys_timerfd
+
+	.globl	sys_eventfd_wrapper
+sys_eventfd_wrapper:
+	llgfr	%r2,%r2			# unsigned int
+	jg	sys_eventfd
diff --git a/arch/s390/kernel/kprobes.c b/arch/s390/kernel/kprobes.c
index e39333a..358d2bb 100644
--- a/arch/s390/kernel/kprobes.c
+++ b/arch/s390/kernel/kprobes.c
@@ -413,7 +413,7 @@ static int __kprobes trampoline_probe_handler(struct kprobe *p,
 			break;
 		}
 	}
-	BUG_ON(!orig_ret_address || (orig_ret_address == trampoline_address));
+	kretprobe_assert(ri, orig_ret_address, trampoline_address);
 	regs->psw.addr = orig_ret_address | PSW_ADDR_AMODE;
 
 	reset_current_kprobe();
diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S
index cd8d321..738feb4 100644
--- a/arch/s390/kernel/syscalls.S
+++ b/arch/s390/kernel/syscalls.S
@@ -322,3 +322,8 @@ NI_SYSCALL							/* 310 sys_move_pages */
 SYSCALL(sys_getcpu,sys_getcpu,sys_getcpu_wrapper)
 SYSCALL(sys_epoll_pwait,sys_epoll_pwait,compat_sys_epoll_pwait_wrapper)
 SYSCALL(sys_utimes,sys_utimes,compat_sys_utimes_wrapper)
+NI_SYSCALL							/* 314 sys_fallocate */
+SYSCALL(sys_utimensat,sys_utimensat,compat_sys_utimensat_wrapper)	/* 315 */
+SYSCALL(sys_signalfd,sys_signalfd,compat_sys_signalfd_wrapper)
+SYSCALL(sys_timerfd,sys_timerfd,compat_sys_timerfd_wrapper)
+SYSCALL(sys_eventfd,sys_eventfd,sys_eventfd_wrapper)
diff --git a/arch/s390/mm/init.c b/arch/s390/mm/init.c
index 916b72a..9098531 100644
--- a/arch/s390/mm/init.c
+++ b/arch/s390/mm/init.c
@@ -61,30 +61,38 @@ void diag10(unsigned long addr)
 
 void show_mem(void)
 {
-        int i, total = 0, reserved = 0;
-        int shared = 0, cached = 0;
+	int i, total = 0, reserved = 0;
+	int shared = 0, cached = 0;
 	struct page *page;
 
-        printk("Mem-info:\n");
-        show_free_areas();
-        printk("Free swap:       %6ldkB\n", nr_swap_pages<<(PAGE_SHIFT-10));
-        i = max_mapnr;
-        while (i-- > 0) {
+	printk("Mem-info:\n");
+	show_free_areas();
+	printk("Free swap:       %6ldkB\n", nr_swap_pages << (PAGE_SHIFT - 10));
+	i = max_mapnr;
+	while (i-- > 0) {
 		if (!pfn_valid(i))
 			continue;
 		page = pfn_to_page(i);
-                total++;
+		total++;
 		if (PageReserved(page))
-                        reserved++;
+			reserved++;
 		else if (PageSwapCache(page))
-                        cached++;
+			cached++;
 		else if (page_count(page))
 			shared += page_count(page) - 1;
-        }
-        printk("%d pages of RAM\n",total);
-        printk("%d reserved pages\n",reserved);
-        printk("%d pages shared\n",shared);
-        printk("%d pages swap cached\n",cached);
+	}
+	printk("%d pages of RAM\n", total);
+	printk("%d reserved pages\n", reserved);
+	printk("%d pages shared\n", shared);
+	printk("%d pages swap cached\n", cached);
+
+	printk("%lu pages dirty\n", global_page_state(NR_FILE_DIRTY));
+	printk("%lu pages writeback\n", global_page_state(NR_WRITEBACK));
+	printk("%lu pages mapped\n", global_page_state(NR_FILE_MAPPED));
+	printk("%lu pages slab\n",
+	       global_page_state(NR_SLAB_RECLAIMABLE) +
+	       global_page_state(NR_SLAB_UNRECLAIMABLE));
+	printk("%lu pages pagetables\n", global_page_state(NR_PAGETABLE));
 }
 
 static void __init setup_ro_region(void)