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authorLinus Torvalds <torvalds@linux-foundation.org>2015-02-12 21:39:41 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2015-02-12 21:39:41 +0300
commit61845143febe6b88349acad4732adc54894009a3 (patch)
treebed6a23efe05b9867b8b4d1f4d251fc1c562e7e4 /Documentation/filesystems/nfs/nfs41-server.txt
parenta26be149facb22d30cd92cadb26f651d6fe802c9 (diff)
parentc23ae6017835b5bc9b9ec9d5d9c2b1523053f503 (diff)
downloadlinux-61845143febe6b88349acad4732adc54894009a3.tar.xz
Merge branch 'for-3.20' of git://linux-nfs.org/~bfields/linux
Pull nfsd updates from Bruce Fields: "The main change is the pNFS block server support from Christoph, which allows an NFS client connected to shared disk to do block IO to the shared disk in place of NFS reads and writes. This also requires xfs patches, which should arrive soon through the xfs tree, barring unexpected problems. Support for other filesystems is also possible if there's interest. Thanks also to Chuck Lever for continuing work to get NFS/RDMA into shape" * 'for-3.20' of git://linux-nfs.org/~bfields/linux: (32 commits) nfsd: default NFSv4.2 to on nfsd: pNFS block layout driver exportfs: add methods for block layout exports nfsd: add trace events nfsd: update documentation for pNFS support nfsd: implement pNFS layout recalls nfsd: implement pNFS operations nfsd: make find_any_file available outside nfs4state.c nfsd: make find/get/put file available outside nfs4state.c nfsd: make lookup/alloc/unhash_stid available outside nfs4state.c nfsd: add fh_fsid_match helper nfsd: move nfsd_fh_match to nfsfh.h fs: add FL_LAYOUT lease type fs: track fl_owner for leases nfs: add LAYOUT_TYPE_MAX enum value nfsd: factor out a helper to decode nfstime4 values sunrpc/lockd: fix references to the BKL nfsd: fix year-2038 nfs4 state problem svcrdma: Handle additional inline content svcrdma: Move read list XDR round-up logic ...
Diffstat (limited to 'Documentation/filesystems/nfs/nfs41-server.txt')
-rw-r--r--Documentation/filesystems/nfs/nfs41-server.txt23
1 files changed, 8 insertions, 15 deletions
diff --git a/Documentation/filesystems/nfs/nfs41-server.txt b/Documentation/filesystems/nfs/nfs41-server.txt
index c49cd7e796e7..682a59fabe3f 100644
--- a/Documentation/filesystems/nfs/nfs41-server.txt
+++ b/Documentation/filesystems/nfs/nfs41-server.txt
@@ -24,11 +24,6 @@ focuses on the mandatory-to-implement NFSv4.1 Sessions, providing
"exactly once" semantics and better control and throttling of the
resources allocated for each client.
-Other NFSv4.1 features, Parallel NFS operations in particular,
-are still under development out of tree.
-See http://wiki.linux-nfs.org/wiki/index.php/PNFS_prototype_design
-for more information.
-
The table below, taken from the NFSv4.1 document, lists
the operations that are mandatory to implement (REQ), optional
(OPT), and NFSv4.0 operations that are required not to implement (MNI)
@@ -43,9 +38,7 @@ The OPTIONAL features identified and their abbreviations are as follows:
The following abbreviations indicate the linux server implementation status.
I Implemented NFSv4.1 operations.
NS Not Supported.
- NS* unimplemented optional feature.
- P pNFS features implemented out of tree.
- PNS pNFS features that are not supported yet (out of tree).
+ NS* Unimplemented optional feature.
Operations
@@ -70,13 +63,13 @@ I | DESTROY_SESSION | REQ | | Section 18.37 |
I | EXCHANGE_ID | REQ | | Section 18.35 |
I | FREE_STATEID | REQ | | Section 18.38 |
| GETATTR | REQ | | Section 18.7 |
-P | GETDEVICEINFO | OPT | pNFS (REQ) | Section 18.40 |
-P | GETDEVICELIST | OPT | pNFS (OPT) | Section 18.41 |
+I | GETDEVICEINFO | OPT | pNFS (REQ) | Section 18.40 |
+NS*| GETDEVICELIST | OPT | pNFS (OPT) | Section 18.41 |
| GETFH | REQ | | Section 18.8 |
NS*| GET_DIR_DELEGATION | OPT | DDELG (REQ) | Section 18.39 |
-P | LAYOUTCOMMIT | OPT | pNFS (REQ) | Section 18.42 |
-P | LAYOUTGET | OPT | pNFS (REQ) | Section 18.43 |
-P | LAYOUTRETURN | OPT | pNFS (REQ) | Section 18.44 |
+I | LAYOUTCOMMIT | OPT | pNFS (REQ) | Section 18.42 |
+I | LAYOUTGET | OPT | pNFS (REQ) | Section 18.43 |
+I | LAYOUTRETURN | OPT | pNFS (REQ) | Section 18.44 |
| LINK | OPT | | Section 18.9 |
| LOCK | REQ | | Section 18.10 |
| LOCKT | REQ | | Section 18.11 |
@@ -122,9 +115,9 @@ Callback Operations
| | MNI | or OPT) | |
+-------------------------+-----------+-------------+---------------+
| CB_GETATTR | OPT | FDELG (REQ) | Section 20.1 |
-P | CB_LAYOUTRECALL | OPT | pNFS (REQ) | Section 20.3 |
+I | CB_LAYOUTRECALL | OPT | pNFS (REQ) | Section 20.3 |
NS*| CB_NOTIFY | OPT | DDELG (REQ) | Section 20.4 |
-P | CB_NOTIFY_DEVICEID | OPT | pNFS (OPT) | Section 20.12 |
+NS*| CB_NOTIFY_DEVICEID | OPT | pNFS (OPT) | Section 20.12 |
NS*| CB_NOTIFY_LOCK | OPT | | Section 20.11 |
NS*| CB_PUSH_DELEG | OPT | FDELG (OPT) | Section 20.5 |
| CB_RECALL | OPT | FDELG, | Section 20.2 |