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docs: filesystems: convert ext2.txt to ReST

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

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Acked-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/fde6721f0303259d830391e351dbde48f67f3ec7.1581955849.git.mchehab+huawei@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This commit is contained in:
Mauro Carvalho Chehab 2020-02-17 17:12:02 +01:00 committed by Jonathan Corbet
parent e66d8631dd
commit 6e29ad2ea3
2 changed files with 29 additions and 17 deletions
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45
Documentation/filesystems/ext2.txt → Documentation/filesystems/ext2.rst
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@ -1,3 +1,5 @@
.. SPDX-License-Identifier: GPL-2.0
The Second Extended Filesystem
==============================
@ -14,8 +16,9 @@ Options
Most defaults are determined by the filesystem superblock, and can be
set using tune2fs(8). Kernel-determined defaults are indicated by (*).
bsddf (*) Makes `df' act like BSD.
minixdf Makes `df' act like Minix.
==================== === ================================================
bsddf (*) Makes ``df`` act like BSD.
minixdf Makes ``df`` act like Minix.
check=none, nocheck (*) Don't do extra checking of bitmaps on mount
(check=normal and check=strict options removed)
@ -62,6 +65,7 @@ quota, usrquota Enable user disk quota support
grpquota Enable group disk quota support
(requires CONFIG_QUOTA).
==================== === ================================================
noquota option ls silently ignored by ext2.
@ -294,9 +298,9 @@ respective fsck programs.
If you're exceptionally paranoid, there are 3 ways of making metadata
writes synchronous on ext2:
per-file if you have the program source: use the O_SYNC flag to open()
per-file if you don't have the source: use "chattr +S" on the file
per-filesystem: add the "sync" option to mount (or in /etc/fstab)
- per-file if you have the program source: use the O_SYNC flag to open()
- per-file if you don't have the source: use "chattr +S" on the file
- per-filesystem: add the "sync" option to mount (or in /etc/fstab)
the first and last are not ext2 specific but do force the metadata to
be written synchronously. See also Journaling below.
@ -316,10 +320,12 @@ Most of these limits could be overcome with slight changes in the on-disk
format and using a compatibility flag to signal the format change (at
the expense of some compatibility).
Filesystem block size: 1kB 2kB 4kB 8kB
File size limit: 16GB 256GB 2048GB 2048GB
Filesystem size limit: 2047GB 8192GB 16384GB 32768GB
===================== ======= ======= ======= ========
Filesystem block size 1kB 2kB 4kB 8kB
===================== ======= ======= ======= ========
File size limit 16GB 256GB 2048GB 2048GB
Filesystem size limit 2047GB 8192GB 16384GB 32768GB
===================== ======= ======= ======= ========
There is a 2.4 kernel limit of 2048GB for a single block device, so no
filesystem larger than that can be created at this time. There is also
@ -370,19 +376,24 @@ ext4 and journaling.
References
==========
======================= ===============================================
The kernel source file:/usr/src/linux/fs/ext2/
e2fsprogs (e2fsck) http://e2fsprogs.sourceforge.net/
Design & Implementation http://e2fsprogs.sourceforge.net/ext2intro.html
Journaling (ext3) ftp://ftp.uk.linux.org/pub/linux/sct/fs/jfs/
Filesystem Resizing http://ext2resize.sourceforge.net/
Compression (*) http://e2compr.sourceforge.net/
Compression [1]_ http://e2compr.sourceforge.net/
======================= ===============================================
Implementations for:
Windows 95/98/NT/2000 http://www.chrysocome.net/explore2fs
Windows 95 (*) http://www.yipton.net/content.html#FSDEXT2
DOS client (*) ftp://metalab.unc.edu/pub/Linux/system/filesystems/ext2/
OS/2 (+) ftp://metalab.unc.edu/pub/Linux/system/filesystems/ext2/
RISC OS client http://www.esw-heim.tu-clausthal.de/~marco/smorbrod/IscaFS/
(*) no longer actively developed/supported (as of Apr 2001)
(+) no longer actively developed/supported (as of Mar 2009)
======================= ===========================================================
Windows 95/98/NT/2000 http://www.chrysocome.net/explore2fs
Windows 95 [1]_ http://www.yipton.net/content.html#FSDEXT2
DOS client [1]_ ftp://metalab.unc.edu/pub/Linux/system/filesystems/ext2/
OS/2 [2]_ ftp://metalab.unc.edu/pub/Linux/system/filesystems/ext2/
RISC OS client http://www.esw-heim.tu-clausthal.de/~marco/smorbrod/IscaFS/
======================= ===========================================================
.. [1] no longer actively developed/supported (as of Apr 2001)
.. [2] no longer actively developed/supported (as of Mar 2009)

1
Documentation/filesystems/index.rst
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@ -62,6 +62,7 @@ Documentation for filesystem implementations.
ecryptfs
efivarfs
erofs
ext2
fuse
overlayfs
virtiofs