xfs: abstract block export operations from nfsd layouts
Instead of creeping pnfs layout configuration into filesystems, move the definition of block-based export operations under a more abstract configuration. Signed-off-by: Benjamin Coddington <bcodding@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Acked-by: Dave Chinner <david@fromorbit.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
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@ -67,6 +67,12 @@ config FS_POSIX_ACL
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config EXPORTFS
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tristate
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config EXPORTFS_BLOCK_OPS
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bool "Enable filesystem export operations for block IO"
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help
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This option enables the export operations for a filesystem to support
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external block IO.
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config FILE_LOCKING
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bool "Enable POSIX file locking API" if EXPERT
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default y
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@ -90,6 +90,7 @@ config NFSD_BLOCKLAYOUT
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bool "NFSv4.1 server support for pNFS block layouts"
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depends on NFSD_V4 && BLOCK
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select NFSD_PNFS
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select EXPORTFS_BLOCK_OPS
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help
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This option enables support for the exporting pNFS block layouts
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in the kernel's NFS server. The pNFS block layout enables NFS
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@ -102,6 +103,7 @@ config NFSD_SCSILAYOUT
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bool "NFSv4.1 server support for pNFS SCSI layouts"
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depends on NFSD_V4 && BLOCK
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select NFSD_PNFS
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select EXPORTFS_BLOCK_OPS
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help
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This option enables support for the exporting pNFS SCSI layouts
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in the kernel's NFS server. The pNFS SCSI layout enables NFS
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@ -121,5 +121,4 @@ xfs-$(CONFIG_XFS_RT) += xfs_rtalloc.o
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xfs-$(CONFIG_XFS_POSIX_ACL) += xfs_acl.o
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xfs-$(CONFIG_SYSCTL) += xfs_sysctl.o
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xfs-$(CONFIG_COMPAT) += xfs_ioctl32.o
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xfs-$(CONFIG_NFSD_BLOCKLAYOUT) += xfs_pnfs.o
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xfs-$(CONFIG_NFSD_SCSILAYOUT) += xfs_pnfs.o
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xfs-$(CONFIG_EXPORTFS_BLOCK_OPS) += xfs_pnfs.o
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@ -246,7 +246,7 @@ const struct export_operations xfs_export_operations = {
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.fh_to_parent = xfs_fs_fh_to_parent,
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.get_parent = xfs_fs_get_parent,
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.commit_metadata = xfs_fs_nfs_commit_metadata,
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#ifdef CONFIG_NFSD_BLOCKLAYOUT
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#ifdef CONFIG_EXPORTFS_BLOCK_OPS
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.get_uuid = xfs_fs_get_uuid,
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.map_blocks = xfs_fs_map_blocks,
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.commit_blocks = xfs_fs_commit_blocks,
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@ -1,7 +1,7 @@
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#ifndef _XFS_PNFS_H
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#define _XFS_PNFS_H 1
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#if defined(CONFIG_NFSD_BLOCKLAYOUT) || defined(CONFIG_NFSD_SCSILAYOUT)
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#ifdef CONFIG_EXPORTFS_BLOCK_OPS
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int xfs_fs_get_uuid(struct super_block *sb, u8 *buf, u32 *len, u64 *offset);
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int xfs_fs_map_blocks(struct inode *inode, loff_t offset, u64 length,
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struct iomap *iomap, bool write, u32 *device_generation);
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@ -15,5 +15,5 @@ xfs_break_layouts(struct inode *inode, uint *iolock, bool with_imutex)
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{
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return 0;
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}
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#endif /* CONFIG_NFSD_PNFS */
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#endif /* CONFIG_EXPORTFS_BLOCK_OPS */
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#endif /* _XFS_PNFS_H */
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