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author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-11 13:36:12 -0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-11 13:36:12 -0400 |
commit | 0a33f80a8373eca7f4bea3961d1346c3815fa5ed (patch) | |
tree | 16b0c0364340416f1e27bebdd4042ffe0e6fef8f /Documentation/filesystems | |
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')
-rw-r--r-- | Documentation/filesystems/gfs2-glocks.txt | 2 | ||||
-rw-r--r-- | Documentation/filesystems/gfs2.txt | 19 |
2 files changed, 12 insertions, 9 deletions
diff --git a/Documentation/filesystems/gfs2-glocks.txt b/Documentation/filesystems/gfs2-glocks.txt index 4dae9a3840bf..0494f78d87e4 100644 --- a/Documentation/filesystems/gfs2-glocks.txt +++ b/Documentation/filesystems/gfs2-glocks.txt | |||
@@ -60,7 +60,7 @@ go_lock | Called for the first local holder of a lock | |||
60 | go_unlock | Called on the final local unlock of a lock | 60 | go_unlock | Called on the final local unlock of a lock |
61 | go_dump | Called to print content of object for debugfs file, or on | 61 | go_dump | Called to print content of object for debugfs file, or on |
62 | | error to dump glock to the log. | 62 | | error to dump glock to the log. |
63 | go_type; | The type of the glock, LM_TYPE_..... | 63 | go_type | The type of the glock, LM_TYPE_..... |
64 | go_min_hold_time | The minimum hold time | 64 | go_min_hold_time | The minimum hold time |
65 | 65 | ||
66 | The minimum hold time for each lock is the time after a remote lock | 66 | The minimum hold time for each lock is the time after a remote lock |
diff --git a/Documentation/filesystems/gfs2.txt b/Documentation/filesystems/gfs2.txt index 593004b6bbab..5e3ab8f3beff 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 | |||
11 | features of GFS is perfect consistency -- changes made to the file system | 11 | features of GFS is perfect consistency -- changes made to the file system |
12 | on one machine show up immediately on all other machines in the cluster. | 12 | on one machine show up immediately on all other machines in the cluster. |
13 | 13 | ||
14 | GFS uses interchangable inter-node locking mechanisms. Different lock | 14 | GFS uses interchangable inter-node locking mechanisms, the currently |
15 | modules can plug into GFS and each file system selects the appropriate | 15 | supported mechanisms are: |
16 | lock module at mount time. Lock modules include: | ||
17 | 16 | ||
18 | lock_nolock -- allows gfs to be used as a local file system | 17 | lock_nolock -- allows gfs to be used as a local file system |
19 | 18 | ||
20 | lock_dlm -- uses a distributed lock manager (dlm) for inter-node locking | 19 | lock_dlm -- uses a distributed lock manager (dlm) for inter-node locking |
21 | The dlm is found at linux/fs/dlm/ | 20 | The dlm is found at linux/fs/dlm/ |
22 | 21 | ||
23 | In addition to interfacing with an external locking manager, a gfs lock | 22 | Lock_dlm depends on user space cluster management systems found |
24 | module is responsible for interacting with external cluster management | ||
25 | systems. Lock_dlm depends on user space cluster management systems found | ||
26 | at the URL above. | 23 | at the URL above. |
27 | 24 | ||
28 | To use gfs as a local file system, no external clustering systems are | 25 | To use gfs as a local file system, no external clustering systems are |
@@ -31,13 +28,19 @@ needed, simply: | |||
31 | $ mkfs -t gfs2 -p lock_nolock -j 1 /dev/block_device | 28 | $ mkfs -t gfs2 -p lock_nolock -j 1 /dev/block_device |
32 | $ mount -t gfs2 /dev/block_device /dir | 29 | $ mount -t gfs2 /dev/block_device /dir |
33 | 30 | ||
34 | GFS2 is not on-disk compatible with previous versions of GFS. | 31 | If you are using Fedora, you need to install the gfs2-utils package |
32 | and, for lock_dlm, you will also need to install the cman package | ||
33 | and write a cluster.conf as per the documentation. | ||
34 | |||
35 | GFS2 is not on-disk compatible with previous versions of GFS, but it | ||
36 | is pretty close. | ||
35 | 37 | ||
36 | The following man pages can be found at the URL above: | 38 | The following man pages can be found at the URL above: |
37 | gfs2_fsck to repair a filesystem | 39 | fsck.gfs2 to repair a filesystem |
38 | gfs2_grow to expand a filesystem online | 40 | gfs2_grow to expand a filesystem online |
39 | gfs2_jadd to add journals to a filesystem online | 41 | gfs2_jadd to add journals to a filesystem online |
40 | gfs2_tool to manipulate, examine and tune a filesystem | 42 | gfs2_tool to manipulate, examine and tune a filesystem |
41 | gfs2_quota to examine and change quota values in a filesystem | 43 | gfs2_quota to examine and change quota values in a filesystem |
44 | gfs2_convert to convert a gfs filesystem to gfs2 in-place | ||
42 | mount.gfs2 to help mount(8) mount a filesystem | 45 | mount.gfs2 to help mount(8) mount a filesystem |
43 | mkfs.gfs2 to make a filesystem | 46 | mkfs.gfs2 to make a filesystem |