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From 7e813d0e3048f52781199384a120f5e5cbad22ae Mon Sep 17 00:00:00 2001
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From: Viktor Malik <viktor.malik@gmail.com>
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Date: Mon, 5 Dec 2022 13:31:25 +0100
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Subject: [PATCH] RHEL8: remove not existing attachpoints from tools
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tools/bio* attempt to attach each probe to multiple kprobes to cover all
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possible systems. Remove probes which do not exist in RHEL8 to remove
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unnecessary warnings.
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---
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tools/biolatency.bt | 6 ++----
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tools/biostacks.bt | 4 +---
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tools/old/biosnoop.bt | 6 ++----
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3 files changed, 5 insertions(+), 11 deletions(-)
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diff --git a/tools/biolatency.bt b/tools/biolatency.bt
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index d5af1f29..4ea910b4 100755
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--- a/tools/biolatency.bt
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+++ b/tools/biolatency.bt
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@@ -16,14 +16,12 @@ BEGIN
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printf("Tracing block device I/O... Hit Ctrl-C to end.\n");
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}
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-kprobe:blk_account_io_start,
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-kprobe:__blk_account_io_start
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+kprobe:blk_account_io_start
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{
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@start[arg0] = nsecs;
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}
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-kprobe:blk_account_io_done,
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-kprobe:__blk_account_io_done
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+kprobe:blk_account_io_done
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/@start[arg0]/
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{
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@usecs = hist((nsecs - @start[arg0]) / 1000);
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diff --git a/tools/biostacks.bt b/tools/biostacks.bt
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index 1bc9f819..80d8cb9e 100755
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--- a/tools/biostacks.bt
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+++ b/tools/biostacks.bt
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@@ -18,14 +18,12 @@ BEGIN
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printf("Tracing block I/O with init stacks. Hit Ctrl-C to end.\n");
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}
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-kprobe:blk_account_io_start,
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-kprobe:__blk_account_io_start
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+kprobe:blk_account_io_start
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{
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@reqstack[arg0] = kstack;
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@reqts[arg0] = nsecs;
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}
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-kprobe:blk_start_request,
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kprobe:blk_mq_start_request
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/@reqts[arg0]/
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{
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diff --git a/tools/old/biosnoop.bt b/tools/old/biosnoop.bt
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index 1a99643a..327251e3 100755
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--- a/tools/old/biosnoop.bt
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+++ b/tools/old/biosnoop.bt
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@@ -22,8 +22,7 @@ BEGIN
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printf("%-12s %-7s %-16s %-6s %7s\n", "TIME(ms)", "DISK", "COMM", "PID", "LAT(ms)");
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}
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-kprobe:blk_account_io_start,
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-kprobe:__blk_account_io_start
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+kprobe:blk_account_io_start
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{
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@start[arg0] = nsecs;
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@iopid[arg0] = pid;
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@@ -31,8 +30,7 @@ kprobe:__blk_account_io_start
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@disk[arg0] = ((struct request *)arg0)->rq_disk->disk_name;
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}
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-kprobe:blk_account_io_done,
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-kprobe:__blk_account_io_done
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+kprobe:blk_account_io_done
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/@start[arg0] != 0 && @iopid[arg0] != 0 && @iocomm[arg0] != ""/
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{
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--
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2.38.1
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