From: Sourabh Jain <sourabhjain@linux.ibm.com>
To: mpe@ellerman.id.au
Cc: mahesh@linux.vnet.ibm.com, hbathini@linux.ibm.com,
linux-kernel@vger.kernel.org, linuxppc-dev@ozlabs.org,
corbet@lwn.net, linux-doc@vger.kernel.org,
Sourabh Jain <sourabhjain@linux.ibm.com>
Subject: [PATCH v3 3/4] Documentation/ABI: mark /sys/kernel/fadump_* sysfs files deprecated
Date: Sat, 9 Nov 2019 17:53:38 +0530 [thread overview]
Message-ID: <20191109122339.20484-4-sourabhjain@linux.ibm.com> (raw)
In-Reply-To: <20191109122339.20484-1-sourabhjain@linux.ibm.com>
The /sys/kernel/fadump_* sysfs files are replicated under
/sys/kernel/fadump/ directory. But we need to keep the old
sysfs files to maintain the backward compatibility.
The sysfs files are scheduled to remove by 2021.
Signed-off-by: Sourabh Jain <sourabhjain@linux.ibm.com>
---
.../sysfs-kernel-fadump_enabled | 3 +++
.../sysfs-kernel-fadump_registered | 3 +++
.../sysfs-kernel-fadump_release_mem | 3 +++
.../sysfs-kernel-fadump_release_opalcore | 2 ++
Documentation/powerpc/firmware-assisted-dump.rst | 15 +++++++++++++--
5 files changed, 24 insertions(+), 2 deletions(-)
rename Documentation/ABI/{testing => obsolete}/sysfs-kernel-fadump_enabled (67%)
rename Documentation/ABI/{testing => obsolete}/sysfs-kernel-fadump_registered (72%)
rename Documentation/ABI/{testing => obsolete}/sysfs-kernel-fadump_release_mem (74%)
rename Documentation/ABI/{testing => removed}/sysfs-kernel-fadump_release_opalcore (82%)
diff --git a/Documentation/ABI/testing/sysfs-kernel-fadump_enabled b/Documentation/ABI/obsolete/sysfs-kernel-fadump_enabled
similarity index 67%
rename from Documentation/ABI/testing/sysfs-kernel-fadump_enabled
rename to Documentation/ABI/obsolete/sysfs-kernel-fadump_enabled
index f73632b1c006..96f49f979e9c 100644
--- a/Documentation/ABI/testing/sysfs-kernel-fadump_enabled
+++ b/Documentation/ABI/obsolete/sysfs-kernel-fadump_enabled
@@ -1,3 +1,6 @@
+This ABI is deprecated and will be removed after 2021. It is replaced
+with /sys/kernel/fadump/enabled.
+
What: /sys/kernel/fadump_enabled
Date: Feb 2012
Contact: linuxppc-dev@lists.ozlabs.org
diff --git a/Documentation/ABI/testing/sysfs-kernel-fadump_registered b/Documentation/ABI/obsolete/sysfs-kernel-fadump_registered
similarity index 72%
rename from Documentation/ABI/testing/sysfs-kernel-fadump_registered
rename to Documentation/ABI/obsolete/sysfs-kernel-fadump_registered
index dcf925e53f0f..11ab41c673de 100644
--- a/Documentation/ABI/testing/sysfs-kernel-fadump_registered
+++ b/Documentation/ABI/obsolete/sysfs-kernel-fadump_registered
@@ -1,3 +1,6 @@
+This ABI is deprecated and will be removed after 2021. It is replaced
+with /sys/kernel/fadump/registered.
+
What: /sys/kernel/fadump_registered
Date: Feb 2012
Contact: linuxppc-dev@lists.ozlabs.org
diff --git a/Documentation/ABI/testing/sysfs-kernel-fadump_release_mem b/Documentation/ABI/obsolete/sysfs-kernel-fadump_release_mem
similarity index 74%
rename from Documentation/ABI/testing/sysfs-kernel-fadump_release_mem
rename to Documentation/ABI/obsolete/sysfs-kernel-fadump_release_mem
index 9c20d64ab48d..69308b28cb0d 100644
--- a/Documentation/ABI/testing/sysfs-kernel-fadump_release_mem
+++ b/Documentation/ABI/obsolete/sysfs-kernel-fadump_release_mem
@@ -1,3 +1,6 @@
+This ABI is deprecated and will be removed after 2021. It is replaced
+with /sys/kernel/fadump/release_mem.
+
What: /sys/kernel/fadump_release_mem
Date: Feb 2012
Contact: linuxppc-dev@lists.ozlabs.org
diff --git a/Documentation/ABI/testing/sysfs-kernel-fadump_release_opalcore b/Documentation/ABI/removed/sysfs-kernel-fadump_release_opalcore
similarity index 82%
rename from Documentation/ABI/testing/sysfs-kernel-fadump_release_opalcore
rename to Documentation/ABI/removed/sysfs-kernel-fadump_release_opalcore
index 53313c1d4e7a..fe42956a3f41 100644
--- a/Documentation/ABI/testing/sysfs-kernel-fadump_release_opalcore
+++ b/Documentation/ABI/removed/sysfs-kernel-fadump_release_opalcore
@@ -1,3 +1,5 @@
+This ABI is moved to /sys/kernel/fadump/release_opalcore.
+
What: /sys/kernel/fadump_release_opalcore
Date: Sep 2019
Contact: linuxppc-dev@lists.ozlabs.org
diff --git a/Documentation/powerpc/firmware-assisted-dump.rst b/Documentation/powerpc/firmware-assisted-dump.rst
index 0455a78486d5..fc7b06408cea 100644
--- a/Documentation/powerpc/firmware-assisted-dump.rst
+++ b/Documentation/powerpc/firmware-assisted-dump.rst
@@ -283,14 +283,25 @@ Here is the list of files under kernel sysfs:
enhanced to use this interface to release the memory reserved for
dump and continue without 2nd reboot.
- /sys/kernel/fadump_release_opalcore
+Note: /sys/kernel/fadump_release_opalcore sysfs has moved to
+ /sys/kernel/fadump/release_opalcore.
+
+ /sys/kernel/fadump/release_opalcore
This file is available only on OPAL based machines when FADump is
active during capture kernel. This is used to release the memory
used by the kernel to export /sys/firmware/opal/core file. To
release this memory, echo '1' to it:
- echo 1 > /sys/kernel/fadump_release_opalcore
+ echo 1 > /sys/kernel/fadump/release_opalcore
+
+Note: The following FADump sysfs files are deprecated.
+
+ Deprecated Alternative
+ --------------------------------------------------------------------
+ /sys/kernel/fadump_enabled /sys/kernel/fadump/enabled
+ /sys/kernel/fadump_registered /sys/kernel/fadump/registered
+ /sys/kernel/fadump_release_mem /sys/kernel/fadump/release_mem
Here is the list of files under powerpc debugfs:
(Assuming debugfs is mounted on /sys/kernel/debug directory.)
--
2.17.2
next prev parent reply other threads:[~2019-11-09 12:24 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-09 12:23 [PATCH v3 0/4] reorganize and add FADump sysfs files Sourabh Jain
2019-11-09 12:23 ` [PATCH v3 1/4] Documentation/ABI: add ABI documentation for /sys/kernel/fadump_* Sourabh Jain
2019-11-09 12:23 ` [PATCH v3 2/4] powerpc/fadump: reorganize /sys/kernel/fadump_* sysfs files Sourabh Jain
2019-11-09 12:59 ` Michal Suchánek
2019-11-16 14:37 ` Sourabh Jain
2019-11-24 18:40 ` Michal Suchánek
2019-11-27 4:54 ` Sourabh Jain
2019-12-03 11:20 ` Sourabh Jain
2019-11-23 11:21 ` kbuild test robot
2019-11-09 12:23 ` Sourabh Jain [this message]
2019-11-09 12:23 ` [PATCH v3 4/4] powerpc/fadump: sysfs for fadump memory reservation Sourabh Jain
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=20191109122339.20484-4-sourabhjain@linux.ibm.com \
--to=sourabhjain@linux.ibm.com \
--cc=corbet@lwn.net \
--cc=hbathini@linux.ibm.com \
--cc=linux-doc@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linuxppc-dev@ozlabs.org \
--cc=mahesh@linux.vnet.ibm.com \
--cc=mpe@ellerman.id.au \
/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).