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Merge tag 'jfs-3.7' of git://github.com/kleikamp/linux-shaggy

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Pull JFS update from Dave Kleikamp:
 "JFS TRIM support and some minor fixes"

* tag 'jfs-3.7' of git://github.com/kleikamp/linux-shaggy:
  jfs: Fix do_div precision in commit b40c2e66
  JFS: use list_move instead of list_del/list_add
  jfs: Remove obsolete email address
  fs/jfs: TRIM support for JFS Filesystem
This commit is contained in:
Linus Torvalds
2012-10-03 08:48:21 -07:00
parent 1f7df953d6 84f4141ee3
commit eb0ad9c06d
11 changed files with 388 additions and 31 deletions
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19
Documentation/filesystems/jfs.txt
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@@ -3,6 +3,7 @@ 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
ASCII. The default is to do no conversion. Use
@@ -21,12 +22,12 @@ nointegrity Do not write to the journal. The primary use of this option
from backup media. The integrity of the volume is not
guaranteed if the system abnormally abends.
integrity Default. Commit metadata changes to the journal. Use this
option to remount a volume where the nointegrity option was
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 Default. Remount the filesystem read-only on an 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
@@ -35,7 +36,17 @@ 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.
Please send bugs, comments, cards and letters to shaggy@linux.vnet.ibm.com.
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
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 usefull.
When no value is given to the discard option, it defaults to
64 blocks, which means 256KiB in JFS.
The minlen value of discard overrides the minlen value given
on an FITRIM ioctl().
The JFS mailing list can be subscribed to by using the link labeled
"Mail list Subscribe" at our web page http://jfs.sourceforge.net/