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docs: filesystems: convert ocfs2-online-filecheck.txt to ReST

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- Add a SPDX header;
- Add a document title;
- Some whitespace fixes and new line breaks;
- Mark literal blocks as such;
- Add it to filesystems/index.rst.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/6007166acc3252697755836354bd29b5a5fb82aa.1581955849.git.mchehab+huawei@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This commit is contained in:
Mauro Carvalho Chehab 2020-02-17 17:12:14 +01:00 committed by Jonathan Corbet
parent 461f2c8f13
commit 3d0c60d004
2 changed files with 26 additions and 20 deletions
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1
Documentation/filesystems/index.rst
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@ -76,6 +76,7 @@ Documentation for filesystem implementations.
nilfs2
nfs/index
ntfs
ocfs2-online-filecheck
overlayfs
virtiofs
vfat

45
Documentation/filesystems/ocfs2-online-filecheck.txt → Documentation/filesystems/ocfs2-online-filecheck.rst
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@ -1,5 +1,8 @@
OCFS2 online file check
-----------------------
.. SPDX-License-Identifier: GPL-2.0
=====================================
OCFS2 file system - online file check
=====================================
This document will describe OCFS2 online file check feature.
@ -40,7 +43,7 @@ When there are errors in the OCFS2 filesystem, they are usually accompanied
by the inode number which caused the error. This inode number would be the
input to check/fix the file.
There is a sysfs directory for each OCFS2 file system mounting:
There is a sysfs directory for each OCFS2 file system mounting::
/sys/fs/ocfs2/<devname>/filecheck
@ -50,34 +53,36 @@ communicate with kernel space, tell which file(inode number) will be checked or
fixed. Currently, three operations are supported, which includes checking
inode, fixing inode and setting the size of result record history.
1. If you want to know what error exactly happened to <inode> before fixing, do
1. If you want to know what error exactly happened to <inode> before fixing, do::
# echo "<inode>" > /sys/fs/ocfs2/<devname>/filecheck/check
# cat /sys/fs/ocfs2/<devname>/filecheck/check
# echo "<inode>" > /sys/fs/ocfs2/<devname>/filecheck/check
# cat /sys/fs/ocfs2/<devname>/filecheck/check
The output is like this:
INO DONE ERROR
39502 1 GENERATION
The output is like this::
<INO> lists the inode numbers.
<DONE> indicates whether the operation has been finished.
<ERROR> says what kind of errors was found. For the detailed error numbers,
please refer to the file linux/fs/ocfs2/filecheck.h.
INO DONE ERROR
39502 1 GENERATION
2. If you determine to fix this inode, do
<INO> lists the inode numbers.
<DONE> indicates whether the operation has been finished.
<ERROR> says what kind of errors was found. For the detailed error numbers,
please refer to the file linux/fs/ocfs2/filecheck.h.
# echo "<inode>" > /sys/fs/ocfs2/<devname>/filecheck/fix
# cat /sys/fs/ocfs2/<devname>/filecheck/fix
2. If you determine to fix this inode, do::
The output is like this:
INO DONE ERROR
39502 1 SUCCESS
# echo "<inode>" > /sys/fs/ocfs2/<devname>/filecheck/fix
# cat /sys/fs/ocfs2/<devname>/filecheck/fix
The output is like this:::
INO DONE ERROR
39502 1 SUCCESS
This time, the <ERROR> column indicates whether this fix is successful or not.
3. The record cache is used to store the history of check/fix results. It's
default size is 10, and can be adjust between the range of 10 ~ 100. You can
adjust the size like this:
adjust the size like this::
# echo "<size>" > /sys/fs/ocfs2/<devname>/filecheck/set