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authorBenjamin Coddington <bcodding@redhat.com>2016-07-08 09:53:20 -0400
committerJ. Bruce Fields <bfields@redhat.com>2016-07-15 15:31:29 -0400
commit15d66ac20927e00ac0e65af6707eff60b92e61b8 (patch)
treeae81c4129572c2b431b425fe2380970506fa9bbb
parentf4a4906e563522aa2eab61cf080460d13b85725c (diff)
downloadop-kernel-dev-15d66ac20927e00ac0e65af6707eff60b92e61b8.zip
op-kernel-dev-15d66ac20927e00ac0e65af6707eff60b92e61b8.tar.gz
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>
-rw-r--r--fs/Kconfig6
-rw-r--r--fs/nfsd/Kconfig2
-rw-r--r--fs/xfs/Makefile3
-rw-r--r--fs/xfs/xfs_export.c2
-rw-r--r--fs/xfs/xfs_pnfs.h4
5 files changed, 12 insertions, 5 deletions
diff --git a/fs/Kconfig b/fs/Kconfig
index b8fcb41..4d2f921 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -67,6 +67,12 @@ config FS_POSIX_ACL
config EXPORTFS
tristate
+config EXPORTFS_BLOCK_OPS
+ bool "Enable filesystem export operations for block IO"
+ help
+ This option enables the export operations for a filesystem to support
+ external block IO.
+
config FILE_LOCKING
bool "Enable POSIX file locking API" if EXPERT
default y
diff --git a/fs/nfsd/Kconfig b/fs/nfsd/Kconfig
index e64d1a3..47febcf 100644
--- a/fs/nfsd/Kconfig
+++ b/fs/nfsd/Kconfig
@@ -90,6 +90,7 @@ config NFSD_BLOCKLAYOUT
bool "NFSv4.1 server support for pNFS block layouts"
depends on NFSD_V4 && BLOCK
select NFSD_PNFS
+ select EXPORTFS_BLOCK_OPS
help
This option enables support for the exporting pNFS block layouts
in the kernel's NFS server. The pNFS block layout enables NFS
@@ -102,6 +103,7 @@ config NFSD_SCSILAYOUT
bool "NFSv4.1 server support for pNFS SCSI layouts"
depends on NFSD_V4 && BLOCK
select NFSD_PNFS
+ select EXPORTFS_BLOCK_OPS
help
This option enables support for the exporting pNFS SCSI layouts
in the kernel's NFS server. The pNFS SCSI layout enables NFS
diff --git a/fs/xfs/Makefile b/fs/xfs/Makefile
index 3542d94..52c2885 100644
--- a/fs/xfs/Makefile
+++ b/fs/xfs/Makefile
@@ -121,5 +121,4 @@ xfs-$(CONFIG_XFS_RT) += xfs_rtalloc.o
xfs-$(CONFIG_XFS_POSIX_ACL) += xfs_acl.o
xfs-$(CONFIG_SYSCTL) += xfs_sysctl.o
xfs-$(CONFIG_COMPAT) += xfs_ioctl32.o
-xfs-$(CONFIG_NFSD_BLOCKLAYOUT) += xfs_pnfs.o
-xfs-$(CONFIG_NFSD_SCSILAYOUT) += xfs_pnfs.o
+xfs-$(CONFIG_EXPORTFS_BLOCK_OPS) += xfs_pnfs.o
diff --git a/fs/xfs/xfs_export.c b/fs/xfs/xfs_export.c
index a1b2dd8..fe1bfee 100644
--- a/fs/xfs/xfs_export.c
+++ b/fs/xfs/xfs_export.c
@@ -246,7 +246,7 @@ const struct export_operations xfs_export_operations = {
.fh_to_parent = xfs_fs_fh_to_parent,
.get_parent = xfs_fs_get_parent,
.commit_metadata = xfs_fs_nfs_commit_metadata,
-#ifdef CONFIG_NFSD_BLOCKLAYOUT
+#ifdef CONFIG_EXPORTFS_BLOCK_OPS
.get_uuid = xfs_fs_get_uuid,
.map_blocks = xfs_fs_map_blocks,
.commit_blocks = xfs_fs_commit_blocks,
diff --git a/fs/xfs/xfs_pnfs.h b/fs/xfs/xfs_pnfs.h
index 93f7485..e8339f7 100644
--- a/fs/xfs/xfs_pnfs.h
+++ b/fs/xfs/xfs_pnfs.h
@@ -1,7 +1,7 @@
#ifndef _XFS_PNFS_H
#define _XFS_PNFS_H 1
-#if defined(CONFIG_NFSD_BLOCKLAYOUT) || defined(CONFIG_NFSD_SCSILAYOUT)
+#ifdef CONFIG_EXPORTFS_BLOCK_OPS
int xfs_fs_get_uuid(struct super_block *sb, u8 *buf, u32 *len, u64 *offset);
int xfs_fs_map_blocks(struct inode *inode, loff_t offset, u64 length,
struct iomap *iomap, bool write, u32 *device_generation);
@@ -15,5 +15,5 @@ xfs_break_layouts(struct inode *inode, uint *iolock, bool with_imutex)
{
return 0;
}
-#endif /* CONFIG_NFSD_PNFS */
+#endif /* CONFIG_EXPORTFS_BLOCK_OPS */
#endif /* _XFS_PNFS_H */
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