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| author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2009-03-11 14:10:28 -0400 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2009-03-11 14:10:28 -0400 |
| commit | a65318bf3afc93ce49227e849d213799b072c5fd (patch) | |
| tree | 754aad8596310825b96956012b7f584fff5b7a54 /include/linux/nfs_fs_sb.h | |
| parent | 69aaaae18f7027d9594bce100378f102926cc0be (diff) | |
| download | op-kernel-dev-a65318bf3afc93ce49227e849d213799b072c5fd.zip op-kernel-dev-a65318bf3afc93ce49227e849d213799b072c5fd.tar.gz | |
NFSv4: Simplify some cache consistency post-op GETATTRs
Certain asynchronous operations such as write() do not expect
(or care) that other metadata such as the file owner, mode, acls, ...
change. All they want to do is update and/or check the change attribute,
ctime, and mtime.
By skipping the file owner and group update, we also avoid having to do a
potential idmapper upcall for these asynchronous RPC calls.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'include/linux/nfs_fs_sb.h')
| -rw-r--r-- | include/linux/nfs_fs_sb.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h index 9bb81ae..29b1e40 100644 --- a/include/linux/nfs_fs_sb.h +++ b/include/linux/nfs_fs_sb.h @@ -106,6 +106,11 @@ struct nfs_server { u32 attr_bitmask[2];/* V4 bitmask representing the set of attributes supported on this filesystem */ + u32 cache_consistency_bitmask[2]; + /* V4 bitmask representing the subset + of change attribute, size, ctime + and mtime attributes supported by + the server */ u32 acl_bitmask; /* V4 bitmask representing the ACEs that are supported on this filesystem */ |
