From: Sai Praneeth Prakhya <sai.praneeth.prakhya@intel.com>
To: shuah@kernel.org, skhan@linuxfoundation.org,
linux-kselftest@vger.kernel.org
Cc: tglx@linutronix.de, mingo@redhat.com, bp@alien8.de,
tony.luck@intel.com, reinette.chatre@intel.com,
babu.moger@amd.com, james.morse@arm.com,
ravi.v.shankar@intel.com, fenghua.yu@intel.com, x86@kernel.org,
linux-kernel@vger.kernel, dan.carpenter@oracle.com,
dcb314@hotmail.com,
Sai Praneeth Prakhya <sai.praneeth.prakhya@intel.com>
Subject: [PATCH V2 06/19] selftests/resctrl: Check for resctrl mount point only if resctrl FS is supported
Date: Mon, 18 May 2020 15:08:26 -0700 [thread overview]
Message-ID: <523fc548414652dfe2068f60b959905e5a4a0e1d.1589835155.git.sai.praneeth.prakhya@intel.com> (raw)
In-Reply-To: <cover.1589835155.git.sai.praneeth.prakhya@intel.com>
Presently, check_resctrlfs_support() tries to open "/sys/fs/resctrl" and
will also look for resctrl mount point in "/proc/mounts" even if resctrl
file system is not supported. Both the above will fail if resctrl file
system is not supported. Hence, return immediately if resctrl file system
is not supported.
Fixes: ecdbb911f22d ("selftests/resctrl: Add MBM test")
Signed-off-by: Sai Praneeth Prakhya <sai.praneeth.prakhya@intel.com>
---
tools/testing/selftests/resctrl/resctrlfs.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/tools/testing/selftests/resctrl/resctrlfs.c b/tools/testing/selftests/resctrl/resctrlfs.c
index 727e667e2cc9..e43ddebd1aa4 100644
--- a/tools/testing/selftests/resctrl/resctrlfs.c
+++ b/tools/testing/selftests/resctrl/resctrlfs.c
@@ -581,6 +581,9 @@ bool check_resctrlfs_support(void)
printf("%sok kernel supports resctrl filesystem\n", ret ? "" : "not ");
tests_run++;
+ if (!ret)
+ return ret;
+
dp = opendir(RESCTRL_PATH);
printf("%sok resctrl mountpoint \"%s\" exists\n",
dp ? "" : "not ", RESCTRL_PATH);
--
2.19.1
next prev parent reply other threads:[~2020-05-18 22:13 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-18 22:08 [PATCH V2 00/19] Miscellaneous fixes for resctrl selftests Sai Praneeth Prakhya
2020-05-18 22:08 ` [PATCH V2 01/19] selftests/resctrl: Rename CQM test as CMT test Sai Praneeth Prakhya
2020-05-18 22:08 ` [PATCH V2 02/19] selftests/resctrl: Fix typo Sai Praneeth Prakhya
2020-05-18 22:08 ` [PATCH V2 03/19] selftests/resctrl: Fix typo in help text Sai Praneeth Prakhya
2020-05-18 22:08 ` [PATCH V2 04/19] selftests/resctrl: Declare global variables as extern Sai Praneeth Prakhya
2020-05-18 22:08 ` [PATCH V2 05/19] selftests/resctrl: Return if resctrl file system is not supported Sai Praneeth Prakhya
2020-05-18 22:08 ` Sai Praneeth Prakhya [this message]
2020-05-18 22:08 ` [PATCH V2 07/19] selftests/resctrl: Use resctrl/info for feature detection Sai Praneeth Prakhya
2020-05-18 22:08 ` [PATCH V2 08/19] selftests/resctrl: Ensure sibling CPU is not same as original CPU Sai Praneeth Prakhya
2020-05-18 22:08 ` [PATCH V2 09/19] selftests/resctrl: Fix missing options "-n" and "-p" Sai Praneeth Prakhya
2020-05-18 22:08 ` [PATCH V2 10/19] selftests/resctrl: Fix MBA/MBM results reporting format Sai Praneeth Prakhya
2020-05-18 22:08 ` [PATCH V2 11/19] selftests/resctrl: Abort running tests if not root user Sai Praneeth Prakhya
2020-05-18 22:08 ` [PATCH V2 12/19] selftests/resctrl: Enable gcc checks to detect buffer overflows Sai Praneeth Prakhya
2020-05-18 22:08 ` [PATCH V2 13/19] selftests/resctrl: Dynamically select buffer size for CAT test Sai Praneeth Prakhya
2020-05-18 22:08 ` [PATCH V2 14/19] selftests/resctrl: Skip the test if requested resctrl feature is not supported Sai Praneeth Prakhya
2020-05-20 23:46 ` Reinette Chatre
2020-05-21 17:12 ` Prakhya, Sai Praneeth
2020-05-18 22:08 ` [PATCH V2 15/19] selftests/resctrl: Change return type of umount_resctrlfs() to void Sai Praneeth Prakhya
2020-05-20 23:52 ` Reinette Chatre
2020-05-21 17:19 ` Prakhya, Sai Praneeth
2020-05-21 18:15 ` Reinette Chatre
2020-05-18 22:08 ` [PATCH V2 16/19] selftests/resctrl: Umount resctrl FS only if mounted Sai Praneeth Prakhya
2020-05-18 22:08 ` [PATCH V2 17/19] selftests/resctrl: Unmount resctrl FS after running all tests Sai Praneeth Prakhya
2020-05-18 22:08 ` [PATCH V2 18/19] selftests/resctrl: Fix incorrect parsing of iMC counters Sai Praneeth Prakhya
2020-05-18 22:08 ` [PATCH V2 19/19] selftests/resctrl: Fix checking for < 0 for unsigned values Sai Praneeth Prakhya
2020-05-21 16:12 ` [PATCH V2 00/19] Miscellaneous fixes for resctrl selftests Reinette Chatre
2020-05-21 17:28 ` Prakhya, Sai Praneeth
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=523fc548414652dfe2068f60b959905e5a4a0e1d.1589835155.git.sai.praneeth.prakhya@intel.com \
--to=sai.praneeth.prakhya@intel.com \
--cc=babu.moger@amd.com \
--cc=bp@alien8.de \
--cc=dan.carpenter@oracle.com \
--cc=dcb314@hotmail.com \
--cc=fenghua.yu@intel.com \
--cc=james.morse@arm.com \
--cc=linux-kernel@vger.kernel \
--cc=linux-kselftest@vger.kernel.org \
--cc=mingo@redhat.com \
--cc=ravi.v.shankar@intel.com \
--cc=reinette.chatre@intel.com \
--cc=shuah@kernel.org \
--cc=skhan@linuxfoundation.org \
--cc=tglx@linutronix.de \
--cc=tony.luck@intel.com \
--cc=x86@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).