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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-11 10:36:12 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-11 10:36:12 -0700 |
| commit | 0a33f80a8373eca7f4bea3961d1346c3815fa5ed (patch) | |
| tree | 16b0c0364340416f1e27bebdd4042ffe0e6fef8f /Documentation/filesystems/gfs2.txt | |
| parent | c29f5ec022451546be1e0b24c330a0368e63e4a7 (diff) | |
| parent | 003dec8913d6bebb4ecc989ec04a235cf38f5ea9 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmw
* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmw: (25 commits)
GFS2: Merge gfs2_get_sb into gfs2_get_sb_meta
GFS2: Fix cache coherency between truncate and O_DIRECT read
GFS2: Fix locking issue mounting gfs2meta fs
GFS2: Remove unused variable
GFS2: smbd proccess hangs with flock() call.
GFS2: Remove args subdir from gfs2 sysfs files
GFS2: Remove lockstruct subdir from gfs2 sysfs files
GFS2: Move gfs2_unlink_ok into ops_inode.c
GFS2: Move gfs2_readlinki into ops_inode.c
GFS2: Move gfs2_rmdiri into ops_inode.c
GFS2: Merge mount.c and ops_super.c into super.c
GFS2: Clean up some file names
GFS2: Be more aggressive in reclaiming unlinked inodes
GFS2: Add a rgrp bitmap full flag
GFS2: Improve resource group error handling
GFS2: Don't warn when delete inode fails on ro filesystem
GFS2: Update docs
GFS2: Umount recovery race fix
GFS2: Remove a couple of unused sysfs entries
GFS2: Add commit= mount option
...
Diffstat (limited to 'Documentation/filesystems/gfs2.txt')
| -rw-r--r-- | Documentation/filesystems/gfs2.txt | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/Documentation/filesystems/gfs2.txt b/Documentation/filesystems/gfs2.txt index 593004b6bba..5e3ab8f3bef 100644 --- a/Documentation/filesystems/gfs2.txt +++ b/Documentation/filesystems/gfs2.txt @@ -11,18 +11,15 @@ their I/O so file system consistency is maintained. One of the nifty features of GFS is perfect consistency -- changes made to the file system on one machine show up immediately on all other machines in the cluster. -GFS uses interchangable inter-node locking mechanisms. Different lock -modules can plug into GFS and each file system selects the appropriate -lock module at mount time. Lock modules include: +GFS uses interchangable inter-node locking mechanisms, the currently +supported mechanisms are: lock_nolock -- allows gfs to be used as a local file system lock_dlm -- uses a distributed lock manager (dlm) for inter-node locking The dlm is found at linux/fs/dlm/ -In addition to interfacing with an external locking manager, a gfs lock -module is responsible for interacting with external cluster management -systems. Lock_dlm depends on user space cluster management systems found +Lock_dlm depends on user space cluster management systems found at the URL above. To use gfs as a local file system, no external clustering systems are @@ -31,13 +28,19 @@ needed, simply: $ mkfs -t gfs2 -p lock_nolock -j 1 /dev/block_device $ mount -t gfs2 /dev/block_device /dir -GFS2 is not on-disk compatible with previous versions of GFS. +If you are using Fedora, you need to install the gfs2-utils package +and, for lock_dlm, you will also need to install the cman package +and write a cluster.conf as per the documentation. + +GFS2 is not on-disk compatible with previous versions of GFS, but it +is pretty close. The following man pages can be found at the URL above: - gfs2_fsck to repair a filesystem + fsck.gfs2 to repair a filesystem gfs2_grow to expand a filesystem online gfs2_jadd to add journals to a filesystem online gfs2_tool to manipulate, examine and tune a filesystem gfs2_quota to examine and change quota values in a filesystem + gfs2_convert to convert a gfs filesystem to gfs2 in-place mount.gfs2 to help mount(8) mount a filesystem mkfs.gfs2 to make a filesystem |