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| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2015-08-20 18:28:44 +0300 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2015-10-14 15:32:06 +0300 |
| commit | 1ec2772e0c3ca3159035c03165355e355efc326b (patch) | |
| tree | 469be3ba9032d367e4a796d6a31b25ccaab0d06a /arch/s390/mm | |
| parent | acdc9fc9a8121ce2ebcd7533bd72852c20b353f3 (diff) | |
| download | linux-1ec2772e0c3ca3159035c03165355e355efc326b.tar.xz | |
s390/diag: add a statistic for diagnose calls
Introduce /sys/debug/kernel/diag_stat with a statistic how many diagnose
calls have been done by each CPU in the system.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/mm')
| -rw-r--r-- | arch/s390/mm/extmem.c | 3 | ||||
| -rw-r--r-- | arch/s390/mm/fault.c | 3 |
2 files changed, 6 insertions, 0 deletions
diff --git a/arch/s390/mm/extmem.c b/arch/s390/mm/extmem.c index 23c496957c22..18fccc303db7 100644 --- a/arch/s390/mm/extmem.c +++ b/arch/s390/mm/extmem.c @@ -18,6 +18,7 @@ #include <linux/bootmem.h> #include <linux/ctype.h> #include <linux/ioport.h> +#include <asm/diag.h> #include <asm/page.h> #include <asm/pgtable.h> #include <asm/ebcdic.h> @@ -112,6 +113,7 @@ dcss_set_subcodes(void) ry = DCSS_FINDSEGX; strcpy(name, "dummy"); + diag_stat_inc(DIAG_STAT_X064); asm volatile( " diag %0,%1,0x64\n" "0: ipm %2\n" @@ -205,6 +207,7 @@ dcss_diag(int *func, void *parameter, ry = (unsigned long) *func; /* 64-bit Diag x'64' new subcode, keep in 64-bit addressing mode */ + diag_stat_inc(DIAG_STAT_X064); if (*func > DCSS_SEGEXT) asm volatile( " diag %0,%1,0x64\n" diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c index f985856a538b..77b3938d6bfa 100644 --- a/arch/s390/mm/fault.c +++ b/arch/s390/mm/fault.c @@ -30,6 +30,7 @@ #include <linux/uaccess.h> #include <linux/hugetlb.h> #include <asm/asm-offsets.h> +#include <asm/diag.h> #include <asm/pgtable.h> #include <asm/irq.h> #include <asm/mmu_context.h> @@ -597,6 +598,7 @@ int pfault_init(void) if (pfault_disable) return -1; + diag_stat_inc(DIAG_STAT_X258); asm volatile( " diag %1,%0,0x258\n" "0: j 2f\n" @@ -618,6 +620,7 @@ void pfault_fini(void) if (pfault_disable) return; + diag_stat_inc(DIAG_STAT_X258); asm volatile( " diag %0,0,0x258\n" "0:\n" |