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journal_info in task_struct is used in journaling file system only. So introduce CONFIG_FS_JOURNAL_INFO and make it conditional. Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com> Cc: Chris Mason <chris.mason@oracle.com> Cc: "Theodore Ts'o" <tytso@mit.edu> Cc: Steven Whitehouse <swhiteho@redhat.com> Cc: KONISHI Ryusuke <konishi.ryusuke@lab.ntt.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
41 lines
1.5 KiB
Text
41 lines
1.5 KiB
Text
config GFS2_FS
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tristate "GFS2 file system support"
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depends on EXPERIMENTAL && (64BIT || LBDAF)
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select DLM if GFS2_FS_LOCKING_DLM
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select CONFIGFS_FS if GFS2_FS_LOCKING_DLM
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select SYSFS if GFS2_FS_LOCKING_DLM
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select IP_SCTP if DLM_SCTP
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select FS_POSIX_ACL
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select CRC32
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select SLOW_WORK
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select QUOTA
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select QUOTACTL
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select FS_JOURNAL_INFO
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help
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A cluster filesystem.
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Allows a cluster of computers to simultaneously use a block device
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that is shared between them (with FC, iSCSI, NBD, etc...). GFS reads
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and writes to the block device like a local filesystem, but also uses
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a lock module to allow the computers coordinate their I/O so
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filesystem consistency is maintained. One of the nifty features of
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GFS is perfect consistency -- changes made to the filesystem on one
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machine show up immediately on all other machines in the cluster.
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To use the GFS2 filesystem in a cluster, you will need to enable
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the locking module below. Documentation and utilities for GFS2 can
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be found here: http://sources.redhat.com/cluster
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The "nolock" lock module is now built in to GFS2 by default. If
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you want to use the DLM, be sure to enable HOTPLUG and IPv4/6
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networking.
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config GFS2_FS_LOCKING_DLM
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bool "GFS2 DLM locking"
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depends on (GFS2_FS!=n) && NET && INET && (IPV6 || IPV6=n) && HOTPLUG
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help
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Multiple node locking module for GFS2
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Most users of GFS2 will require this. It provides the locking
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interface between GFS2 and the DLM, which is required to use GFS2
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in a cluster environment.
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