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authorPeng Tao <tao.peng@primarydata.com>2017-06-29 06:34:53 -0700
committerAnna Schumaker <Anna.Schumaker@Netapp.com>2017-07-13 17:12:04 -0400
commit20fa19027286983ab2734b5910c4a687436e0c31 (patch)
tree74b456ce1f075b4641f3b6a196843fc02ef25859 /fs/nfs/internal.h
parentnfs4: add NFSv4 LOOKUPP handlers (diff)
downloadlinux-dev-20fa19027286983ab2734b5910c4a687436e0c31.tar.xz
linux-dev-20fa19027286983ab2734b5910c4a687436e0c31.zip
nfs: add export operations
This support for opening files on NFS by file handle, both through the open_by_handle syscall, and for re-exporting NFS (for example using a different version). The support is very basic for now, as each open by handle will have to do an NFSv4 open operation on the wire. In the future this will hopefully be mitigated by an open file cache, as well as various optimizations in NFS for this specific case. Signed-off-by: Peng Tao <tao.peng@primarydata.com> [hch: incorporated various changes, resplit the patches, new changelog] Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'fs/nfs/internal.h')
-rw-r--r--fs/nfs/internal.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index c5054edb0157..2ebd57498986 100644
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -10,6 +10,8 @@
#define NFS_MS_MASK (MS_RDONLY|MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS)
+extern const struct export_operations nfs_export_ops;
+
struct nfs_string;
/* Maximum number of readahead requests