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fs/nfs_common/nfslocalio.c provides interfaces that enable an NFS client to generate a nonce (single-use UUID) and associated nfs_uuid_t struct, register it with nfs_common for subsequent lookup and verification by the NFS server and if matched the NFS server populates members in the nfs_uuid_t struct. nfs_common's nfs_uuids list is the basis for localio enablement, as such it has members that point to nfsd memory for direct use by the client (e.g. 'net' is the server's network namespace, through it the client can access nn->nfsd_serv). This commit also provides the base nfs_uuid_t interfaces to allow proper net namespace refcounting for the LOCALIO use case. CONFIG_NFS_LOCALIO controls the nfs_common, NFS server and NFS client enablement for LOCALIO. If both NFS_FS=m and NFSD=m then NFS_COMMON_LOCALIO_SUPPORT=m and nfs_localio.ko is built (and provides nfs_common's LOCALIO support). # lsmod | grep nfs_localio nfs_localio 12288 2 nfsd,nfs sunrpc 745472 35 nfs_localio,nfsd,auth_rpcgss,lockd,nfsv3,nfs Signed-off-by: Mike Snitzer <snitzer@kernel.org> Co-developed-by: NeilBrown <neilb@suse.de> Signed-off-by: NeilBrown <neilb@suse.de> Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com>
16 lines
408 B
Makefile
16 lines
408 B
Makefile
# SPDX-License-Identifier: GPL-2.0-only
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#
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# Makefile for Linux filesystem routines that are shared by client and server.
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#
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obj-$(CONFIG_NFS_ACL_SUPPORT) += nfs_acl.o
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nfs_acl-objs := nfsacl.o
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obj-$(CONFIG_NFS_COMMON_LOCALIO_SUPPORT) += nfs_localio.o
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nfs_localio-objs := nfslocalio.o
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obj-$(CONFIG_GRACE_PERIOD) += grace.o
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obj-$(CONFIG_NFS_V4_2_SSC_HELPER) += nfs_ssc.o
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obj-$(CONFIG_NFS_COMMON) += common.o
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