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fs/gfs2/Kconfig
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config GFS2_FS |
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tristate "GFS2 file system support" |
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depends on (64BIT || LBDAF) |
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select FS_POSIX_ACL |
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select CRC32 |
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select QUOTACTL |
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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 that is shared between them (with FC, iSCSI, NBD, etc...). GFS reads and writes to the block device like a local filesystem, but also uses a lock module to allow the computers coordinate their I/O so filesystem consistency is maintained. One of the nifty features of GFS is perfect consistency -- changes made to the filesystem on one 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 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 IPv4/6 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) && \ |
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CONFIGFS_FS && SYSFS && (DLM=y || DLM=GFS2_FS) |
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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 in a cluster environment. |