| From dabb10d4fd955ce64a1b45639f79a0488fe1af34 Mon Sep 17 00:00:00 2001 |
| From: Michael Mueller <mimu@linux.ibm.com> |
| Date: Tue, 3 Mar 2020 16:42:01 +0100 |
| Subject: [PATCH] s390/diag: fix display of diagnose call statistics |
| |
| commit 6c7c851f1b666a8a455678a0b480b9162de86052 upstream. |
| |
| Show the full diag statistic table and not just parts of it. |
| |
| The issue surfaced in a KVM guest with a number of vcpus |
| defined smaller than NR_DIAG_STAT. |
| |
| Fixes: 1ec2772e0c3c ("s390/diag: add a statistic for diagnose calls") |
| Cc: stable@vger.kernel.org |
| Signed-off-by: Michael Mueller <mimu@linux.ibm.com> |
| Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com> |
| Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> |
| Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> |
| |
| diff --git a/arch/s390/kernel/diag.c b/arch/s390/kernel/diag.c |
| index e9dac9a24d3f..61f2b0412345 100644 |
| --- a/arch/s390/kernel/diag.c |
| +++ b/arch/s390/kernel/diag.c |
| @@ -84,7 +84,7 @@ static int show_diag_stat(struct seq_file *m, void *v) |
| |
| static void *show_diag_stat_start(struct seq_file *m, loff_t *pos) |
| { |
| - return *pos <= nr_cpu_ids ? (void *)((unsigned long) *pos + 1) : NULL; |
| + return *pos <= NR_DIAG_STAT ? (void *)((unsigned long) *pos + 1) : NULL; |
| } |
| |
| static void *show_diag_stat_next(struct seq_file *m, void *v, loff_t *pos) |
| -- |
| 2.7.4 |
| |
