From 2f7c68cb55ecb7331f2381deb497c27155f32faf Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 03 Jan 2024 09:43:39 +0000
Subject: [PATCH] update kernel to 5.10.198
---
kernel/tools/testing/selftests/resctrl/cache.c | 18 +++++++++++-------
1 files changed, 11 insertions(+), 7 deletions(-)
diff --git a/kernel/tools/testing/selftests/resctrl/cache.c b/kernel/tools/testing/selftests/resctrl/cache.c
index 5922cc1..b3c0e85 100644
--- a/kernel/tools/testing/selftests/resctrl/cache.c
+++ b/kernel/tools/testing/selftests/resctrl/cache.c
@@ -89,21 +89,19 @@
static int get_llc_perf(unsigned long *llc_perf_miss)
{
__u64 total_misses;
+ int ret;
/* Stop counters after one span to get miss rate */
ioctl(fd_lm, PERF_EVENT_IOC_DISABLE, 0);
- if (read(fd_lm, &rf_cqm, sizeof(struct read_format)) == -1) {
+ ret = read(fd_lm, &rf_cqm, sizeof(struct read_format));
+ if (ret == -1) {
perror("Could not get llc misses through perf");
-
return -1;
}
total_misses = rf_cqm.values[0].value;
-
- close(fd_lm);
-
*llc_perf_miss = total_misses;
return 0;
@@ -256,17 +254,23 @@
memflush, operation, resctrl_val)) {
fprintf(stderr, "Error-running fill buffer\n");
ret = -1;
- break;
+ goto pe_close;
}
sleep(1);
ret = measure_cache_vals(param, bm_pid);
if (ret)
- break;
+ goto pe_close;
+
+ close(fd_lm);
} else {
break;
}
}
return ret;
+
+pe_close:
+ close(fd_lm);
+ return ret;
}
--
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