writeback: show raw dirtied_when in trace writeback_single_inode

[pandora-kernel.git] / arch / s390 / kernel / entry64.S

diff --git a/arch/s390/kernel/entry64.S b/arch/s390/kernel/entry64.S
index 7a0fd42..5f729d6 100644 (file)
--- a/arch/s390/kernel/entry64.S
+++ b/arch/s390/kernel/entry64.S
@@ -865,6 +865,26 @@ restart_crash:
 restart_go:
 #endif
 
+#
+# PSW restart interrupt handler
+#
+ENTRY(psw_restart_int_handler)
+       stg     %r15,__LC_SAVE_AREA_64(%r0)     # save r15
+       larl    %r15,restart_stack              # load restart stack
+       lg      %r15,0(%r15)
+       aghi    %r15,-SP_SIZE                   # make room for pt_regs
+       stmg    %r0,%r14,SP_R0(%r15)            # store gprs %r0-%r14 to stack
+       mvc     SP_R15(8,%r15),__LC_SAVE_AREA_64(%r0)# store saved %r15 to stack
+       mvc     SP_PSW(16,%r15),__LC_RST_OLD_PSW(%r0)# store restart old psw
+       xc      __SF_BACKCHAIN(8,%r15),__SF_BACKCHAIN(%r15) # set backchain to 0
+       brasl   %r14,do_restart
+
+       larl    %r14,restart_psw_crash          # load disabled wait PSW if
+       lpswe   0(%r14)                         # do_restart returns
+       .align 8
+restart_psw_crash:
+       .quad   0x0002000080000000,0x0000000000000000 + restart_psw_crash
+
        .section .kprobes.text, "ax"
 
 #ifdef CONFIG_CHECK_STACK