linux-kernel - [PATCH -next v2 3/4] fault-injection: make some stack filter attrs more readable

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Date:   Mon, 12 Dec 2022 10:11:15 +0800
From:   Wang Yufen <wangyufen@...wei.com>
To:     <akinobu.mita@...il.com>, <akpm@...ux-foundation.org>,
        <nathan@...nel.org>, <peterz@...radead.org>,
        <keescook@...omium.org>, <ndesaulniers@...gle.com>,
        <jpoimboe@...nel.org>, <dan.j.williams@...el.com>,
        <ojeda@...nel.org>, <isabbasso@...eup.net>, <vbabka@...e.cz>,
        <linux@...musvillemoes.dk>
CC:     <linux-kernel@...r.kernel.org>, <weiyongjun1@...wei.com>,
        Wang Yufen <wangyufen@...wei.com>
Subject: [PATCH -next v2 3/4] fault-injection: make some stack filter attrs more readable

Attributes of stack filter are show as unsigned decimal, such
as 'require-start', 'require-end'. This patch change to
show them as unsigned hexadecimal for more readable.

Before:
  $ echo 0xffffffffc0257000 > /sys/kernel/debug/failslab/require-start
  $ cat /sys/kernel/debug/failslab/require-start
  18446744072638263296

After:
  $ echo 0xffffffffc0257000 > /sys/kernel/debug/failslab/require-start
  $ cat /sys/kernel/debug/failslab/require-start
  0xffffffffc0257000

Signed-off-by: Wei Yongjun <weiyongjun1@...wei.com>
Signed-off-by: Wang Yufen <wangyufen@...wei.com>
---
 lib/fault-inject.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/lib/fault-inject.c b/lib/fault-inject.c
index fecc4d8..d7819ca 100644
--- a/lib/fault-inject.c
+++ b/lib/fault-inject.c
@@ -226,10 +226,10 @@ struct dentry *fault_create_debugfs_attr(const char *name,
 #ifdef CONFIG_FAULT_INJECTION_STACKTRACE_FILTER
 	debugfs_create_stacktrace_depth("stacktrace-depth", mode, dir,
 					&attr->stacktrace_depth);
-	debugfs_create_ul("require-start", mode, dir, &attr->require_start);
-	debugfs_create_ul("require-end", mode, dir, &attr->require_end);
-	debugfs_create_ul("reject-start", mode, dir, &attr->reject_start);
-	debugfs_create_ul("reject-end", mode, dir, &attr->reject_end);
+	debugfs_create_xul("require-start", mode, dir, &attr->require_start);
+	debugfs_create_xul("require-end", mode, dir, &attr->require_end);
+	debugfs_create_xul("reject-start", mode, dir, &attr->reject_start);
+	debugfs_create_xul("reject-end", mode, dir, &attr->reject_end);
 #endif /* CONFIG_FAULT_INJECTION_STACKTRACE_FILTER */
 
 	attr->dname = dget(dir);
-- 
1.8.3.1