77658aad22
The blocks counter is almost a duplicate of the i_blocks field in the VFS inode. The only difference is that i_blocks can be only 32bits long for 32bit arch without large single file support. Since GFS2 doesn't handle the non-large single file case (for 32 bit anyway) this adds a new config dependency on 64BIT || LSF. This has always been the case, however we've never explicitly said so before. Even if we do add support for the non-LSF case, we will still not require this field to be duplicated since we will not be able to access oversized files anyway. So the net result of all this is that we shave 8 bytes from a gfs2_inode and get our config deps correct. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
47 lines
1.7 KiB
Plaintext
47 lines
1.7 KiB
Plaintext
config GFS2_FS
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tristate "GFS2 file system support"
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depends on EXPERIMENTAL && (64BIT || LSF)
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select FS_POSIX_ACL
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select CRC32
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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, you will need to enable one or more of
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the below locking modules. Documentation and utilities for GFS2 can
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be found here: http://sources.redhat.com/cluster
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config GFS2_FS_LOCKING_NOLOCK
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tristate "GFS2 \"nolock\" locking module"
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depends on GFS2_FS
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help
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Single node locking module for GFS2.
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Use this module if you want to use GFS2 on a single node without
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its clustering features. You can still take advantage of the
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large file support, and upgrade to running a full cluster later on
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if required.
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If you will only be using GFS2 in cluster mode, you do not need this
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module.
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config GFS2_FS_LOCKING_DLM
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tristate "GFS2 DLM locking module"
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depends on GFS2_FS && SYSFS && NET && INET && (IPV6 || IPV6=n)
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select IP_SCTP if DLM_SCTP
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select CONFIGFS_FS
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select DLM
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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 module. 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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