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authorShobhit Kukreti <shobhitkukreti@gmail.com>2019-07-10 08:29:01 -0700
committerJonathan Corbet <corbet@lwn.net>2019-07-31 13:09:14 -0600
commitac841c4e457c1fae6f661108f811b554c8581976 (patch)
treed81d2897a7d210d57dc375bb8737eec17b140deb /Documentation/admin-guide/jfs.rst
parentdoc: email-clients miscellaneous fixes (diff)
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Documentation: filesystems: Convert jfs.txt to
This converts the plain text documentation of jfs.txt to reStructuredText format. Added to documentation build process and verified with make htmldocs Signed-off-by: Shobhit Kukreti <shobhitkukreti@gmail.com> Reviewed-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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+===========================================
IBM's Journaled File System (JFS) for Linux
+===========================================
JFS Homepage: http://jfs.sourceforge.net/
The following mount options are supported:
+
(*) == default
-iocharset=name Character set to use for converting from Unicode to
+iocharset=name
+ Character set to use for converting from Unicode to
ASCII. The default is to do no conversion. Use
iocharset=utf8 for UTF-8 translations. This requires
CONFIG_NLS_UTF8 to be set in the kernel .config file.
iocharset=none specifies the default behavior explicitly.
-resize=value Resize the volume to <value> blocks. JFS only supports
+resize=value
+ Resize the volume to <value> blocks. JFS only supports
growing a volume, not shrinking it. This option is only
valid during a remount, when the volume is mounted
read-write. The resize keyword with no value will grow
the volume to the full size of the partition.
-nointegrity Do not write to the journal. The primary use of this option
+nointegrity
+ Do not write to the journal. The primary use of this option
is to allow for higher performance when restoring a volume
from backup media. The integrity of the volume is not
guaranteed if the system abnormally abends.
-integrity(*) Commit metadata changes to the journal. Use this option to
+integrity(*)
+ Commit metadata changes to the journal. Use this option to
remount a volume where the nointegrity option was
previously specified in order to restore normal behavior.
-errors=continue Keep going on a filesystem error.
-errors=remount-ro(*) Remount the filesystem read-only on an error.
-errors=panic Panic and halt the machine if an error occurs.
+errors=continue
+ Keep going on a filesystem error.
+errors=remount-ro(*)
+ Remount the filesystem read-only on an error.
+errors=panic
+ Panic and halt the machine if an error occurs.
-uid=value Override on-disk uid with specified value
-gid=value Override on-disk gid with specified value
-umask=value Override on-disk umask with specified octal value. For
- directories, the execute bit will be set if the corresponding
+uid=value
+ Override on-disk uid with specified value
+gid=value
+ Override on-disk gid with specified value
+umask=value
+ Override on-disk umask with specified octal value. For
+ directories, the execute bit will be set if the corresponding
read bit is set.
-discard=minlen This enables/disables the use of discard/TRIM commands.
-discard The discard/TRIM commands are sent to the underlying
-nodiscard(*) block device when blocks are freed. This is useful for SSD
- devices and sparse/thinly-provisioned LUNs. The FITRIM ioctl
+discard=minlen, discard/nodiscard(*)
+ This enables/disables the use of discard/TRIM commands.
+ The discard/TRIM commands are sent to the underlying
+ block device when blocks are freed. This is useful for SSD
+ devices and sparse/thinly-provisioned LUNs. The FITRIM ioctl
command is also available together with the nodiscard option.
The value of minlen specifies the minimum blockcount, when
a TRIM command to the block device is considered useful.