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| author | Peng Tao <tao.peng@primarydata.com> | 2017-06-29 15:34:53 +0200 |
|---|---|---|
| committer | Anna Schumaker <Anna.Schumaker@Netapp.com> | 2017-07-13 23:12:04 +0200 |
| commit | 20fa19027286983ab2734b5910c4a687436e0c31 (patch) | |
| tree | 74b456ce1f075b4641f3b6a196843fc02ef25859 /fs/nfs/super.c | |
| parent | nfs4: add NFSv4 LOOKUPP handlers (diff) | |
| download | linux-20fa19027286983ab2734b5910c4a687436e0c31.tar.xz linux-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/super.c')
| -rw-r--r-- | fs/nfs/super.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/nfs/super.c b/fs/nfs/super.c index b4176393f049..b5271644b472 100644 --- a/fs/nfs/super.c +++ b/fs/nfs/super.c @@ -2339,6 +2339,7 @@ void nfs_fill_super(struct super_block *sb, struct nfs_mount_info *mount_info) */ sb->s_flags |= MS_POSIXACL; sb->s_time_gran = 1; + sb->s_export_op = &nfs_export_ops; } nfs_initialise_sb(sb); @@ -2360,6 +2361,7 @@ static void nfs_clone_super(struct super_block *sb, sb->s_xattr = old_sb->s_xattr; sb->s_op = old_sb->s_op; sb->s_time_gran = 1; + sb->s_export_op = old_sb->s_export_op; if (server->nfs_client->rpc_ops->version != 2) { /* The VFS shouldn't apply the umask to mode bits. We will do |