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* NFSv4: Ensure we do not reuse open owner namesTrond Myklebust2012-04-201-1/+6
| | | | | | | | | | The NFSv4 spec is ambiguous about whether or not it is permissible to reuse open owner names, so play it safe. This patch adds a timestamp to the state_owner structure, and combines that with the IDA based uniquifier. Fixes a regression whereby the Linux server returns NFS4ERR_BAD_SEQID. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Remove nfs4_setup_sequence from generic rename codeBryan Schumaker2012-03-211-0/+13
| | | | | | | | This is an NFS v4 specific operation, so it belongs in the NFS v4 code and not the generic client. Signed-off-by: Bryan Schumaker <bjschuma@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Remove nfs4_setup_sequence from generic unlink codeBryan Schumaker2012-03-211-0/+10
| | | | | | | | This is an NFS v4 specific operation, so it belongs in the NFS v4 code and not the generic client. Signed-off-by: Bryan Schumaker <bjschuma@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Remove nfs4_setup_sequence from generic read codeBryan Schumaker2012-03-211-0/+1
| | | | | | | | This is an NFS v4 specific operation, so it belongs in the NFS v4 code and not the generic client. Signed-off-by: Bryan Schumaker <bjschuma@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Remove nfs4_setup_sequence from generic write codeBryan Schumaker2012-03-211-0/+1
| | | | | | | | This is an NFS v4 specific operation, so it belongs in the NFS v4 code and not the generic client. Signed-off-by: Bryan Schumaker <bjschuma@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* Merge commit 'nfs-for-3.3-4' into nfs-for-nextTrond Myklebust2012-03-031-1/+1
|\ | | | | | | | | | | | | | | Conflicts: fs/nfs/nfs4proc.c Back-merge of the upstream kernel in order to fix a conflict with the slotid type conversion and implementation id patches...
| * NFSv4: Fix an Oops in the NFSv4 getacl codeTrond Myklebust2012-02-031-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit bf118a342f10dafe44b14451a1392c3254629a1f (NFSv4: include bitmap in nfsv4 get acl data) introduces the 'acl_scratch' page for the case where we may need to decode multi-page data. However it fails to take into account the fact that the variable may be NULL (for the case where we're not doing multi-page decode), and it also attaches it to the encoding xdr_stream rather than the decoding one. The immediate result is an Oops in nfs4_xdr_enc_getacl due to the call to page_address() with a NULL page pointer. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Cc: Andy Adamson <andros@netapp.com> Cc: stable@vger.kernel.org
* | NFS: Request fh_expire_type attribute in "server caps" operationChuck Lever2012-03-021-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | The fh_expire_type file attribute is a filesystem wide attribute that consists of flags that indicate what characteristics file handles on this FSID have. Our client doesn't support volatile file handles. It should find out early (say, at mount time) whether the server is going to play shenanighans with file handles during a migration. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | NFS: Introduce NFS_ATTR_FATTR_V4_LOCATIONSChuck Lever2012-03-021-5/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The Linux NFS client must distinguish between referral events (which it currently supports) and migration events (which it does not yet support). In both types of events, an fs_locations array is returned. But upper layers, not the XDR layer, should make the distinction between a referral and a migration. There really isn't a way for an XDR decoder function to distinguish the two, in general. Slightly adjust the FATTR flags returned by decode_fs_locations() to set NFS_ATTR_FATTR_V4_LOCATIONS only if a non-empty locations array was returned from the server. Then have logic in nfs4proc.c distinguish whether the locations array is for a referral or something else. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | NFSv4: parse and display server implementation idsWeston Andros Adamson2012-03-011-8/+7
| | | | | | | | | | | | | | | | Shows the implementation ids in /proc/self/mountstats. This doesn't break the nfs-utils mountstats tool. Signed-off-by: Weston Andros Adamson <dros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | NFSv4.1: Convert slotid from u8 to u32Trond Myklebust2012-02-151-1/+1
| | | | | | | | | | | | | | It is perfectly legal to negotiate up to 2^32-1 slots in the protocol, and with 10GigE, we are already seeing that 255 slots is far too limiting. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | SUNRPC: constify the rpc_programTrond Myklebust2012-01-311-5/+5
| | | | | | | | Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | NFS: Remove unnecessary includes from linux/nfs_fs_i.hTrond Myklebust2012-01-311-1/+0
|/ | | | | | Also from linux/nfs_xdr.h. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFSv4: Save the owner/group name string when doing openTrond Myklebust2012-01-071-5/+12
| | | | | | | | | | | | | | | ...so that we can do the uid/gid mapping outside the asynchronous RPC context. This fixes a bug in the current NFSv4 atomic open code where the client isn't able to determine what the true uid/gid fields of the file are, (because the asynchronous nature of the OPEN call denies it the ability to do an upcall) and so fills them with default values, marking the inode as needing revalidation. Unfortunately, in some cases, the VFS will do some additional sanity checks on the file, and may override the server's decision to allow the open because it sees the wrong owner/group fields. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFSv4: include bitmap in nfsv4 get acl dataAndy Adamson2012-01-051-0/+5
| | | | | | | | | | | | | | | | | | | The NFSv4 bitmap size is unbounded: a server can return an arbitrary sized bitmap in an FATTR4_WORD0_ACL request. Replace using the nfs4_fattr_bitmap_maxsz as a guess to the maximum bitmask returned by a server with the inclusion of the bitmap (xdr length plus bitmasks) and the acl data xdr length to the (cached) acl page data. This is a general solution to commit e5012d1f "NFSv4.1: update nfs4_fattr_bitmap_maxsz" and fixes hitting a BUG_ON in xdr_shrink_bufhead when getting ACLs. Fix a bug in decode_getacl that returned -EINVAL on ACLs > page when getxattr was called with a NULL buffer, preventing ACL > PAGE_SIZE from being retrieved. Cc: stable@kernel.org Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* nfs: when attempting to open a directory, fall back on normal lookup (try #5)Jeff Layton2011-11-041-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | commit d953126 changed how nfs_atomic_lookup handles an -EISDIR return from an OPEN call. Prior to that patch, that caused the client to fall back to doing a normal lookup. When that patch went in, the code began returning that error to userspace. The d_revalidate codepath however never had the corresponding change, so it was still possible to end up with a NULL ctx->state pointer after that. That patch caused a regression. When we attempt to open a directory that does not have a cached dentry, that open now errors out with EISDIR. If you attempt the same open with a cached dentry, it will succeed. Fix this by reverting the change in nfs_atomic_lookup and allowing attempts to open directories to fall back to a normal lookup Also, add a NFSv4-specific f_ops->open routine that just returns -ENOTDIR. This should never be called if things are working properly, but if it ever is, then the dprintk may help in debugging. To facilitate this, a new file_operations field is also added to the nfs_rpc_ops struct. Cc: stable@kernel.org Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Get rid of the unused nfs_write_data->flags fieldTrond Myklebust2011-10-191-1/+0
| | | | Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Get rid of the unused nfs_read_data->flags fieldTrond Myklebust2011-10-191-1/+0
| | | | Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Remove the unused "lookupfh()" version of nfs4_proc_lookup()Trond Myklebust2011-10-181-3/+0
| | | | | | ...and also remove the associated nfs_v4_clientops entry. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* Merge branch 'for-linus' of git://git.open-osd.org/linux-open-osdLinus Torvalds2011-08-061-5/+5
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-linus' of git://git.open-osd.org/linux-open-osd: ore: Make ore its own module exofs: Rename raid engine from exofs/ios.c => ore exofs: ios: Move to a per inode components & device-table exofs: Move exofs specific osd operations out of ios.c exofs: Add offset/length to exofs_get_io_state exofs: Fix truncate for the raid-groups case exofs: Small cleanup of exofs_fill_super exofs: BUG: Avoid sbi realloc exofs: Remove pnfs-osd private definitions nfs_xdr: Move nfs4_string definition out of #ifdef CONFIG_NFS_V4
| * nfs_xdr: Move nfs4_string definition out of #ifdef CONFIG_NFS_V4Boaz Harrosh2011-08-041-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | exofs file system wants to use pnfs_osd_xdr.h file instead of redefining pnfs-objects types in it's private "pnfs.h" headr. Before we do the switch we must make sure pnfs_osd_xdr.h is compilable also under NFS versions smaller than 4.1. Since now it is needed regardless of version, by the exofs code. nfs4_string is not the only nfs4 type out in the global scope. Ack-by: Trond Myklebust <Trond.Myklebust@netapp.com> Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
* | pnfs: cleanup_layoutcommitAndy Adamson2011-07-311-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | This gives layout driver a chance to cleanup structures they put in at encode_layoutcommit. Signed-off-by: Andy Adamson <andros@netapp.com> [fixup layout header pointer for layoutcommit] Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Benny Halevy <bhalevy@tonian.com> [rm inode and pnfs_layout_hdr args from cleanup_layoutcommit()] Signed-off-by: Jim Rees <rees@umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | pnfs: ask for layout_blksize and save it in nfs_serverFred Isaman2011-07-311-1/+2
| | | | | | | | | | | | | | | | | | | | | | Block layout needs it to determine IO size. Signed-off-by: Fred Isaman <iisaman@citi.umich.edu> Signed-off-by: Tao Guo <glorioustao@gmail.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Benny Halevy <bhalevy@tonian.com> Signed-off-by: Jim Rees <rees@umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | pnfs: GETDEVICELISTAndy Adamson2011-07-311-0/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | The block driver uses GETDEVICELIST Signed-off-by: Andy Adamson <andros@netapp.com> [pass struct nfs_server * to getdevicelist] [get machince creds for getdevicelist] [fix getdevicelist decode sizing] Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Benny Halevy <bhalevy@tonian.com> Signed-off-by: Jim Rees <rees@umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | pnfs: let layoutcommit handle a list of lsegPeng Tao2011-07-311-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | There can be multiple lseg per file, so layoutcommit should be able to handle it. [Needed in v3.0] CC: Stable Tree <stable@kernel.org> Signed-off-by: Peng Tao <peng_tao@emc.com> Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> Signed-off-by: Jim Rees <rees@umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | NFS: Clean up nfs_read_rpcsetup and nfs_write_rpcsetupTrond Myklebust2011-07-121-0/+2
| | | | | | | | | | | | | | Split them up into two parts: one which sets up the struct nfs_read/write_data, the other which sets up the actual RPC call or pNFS call. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | NFSv4.1: Clean up layoutreturnTrond Myklebust2011-07-121-1/+2
| | | | | | | | | | | | | | | | Since we take a reference to it, we really ought to pass the a pointer to the layout header in the arguments instead of assuming that NFS_I(inode)->layout will forever point to the correct object. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | NFS: added FREE_STATEID callBryan Schumaker2011-07-121-0/+10
| | | | | | | | | | | | | | | | | | | | FREE_STATEID is used to tell the server that we want to free a stateid that no longer has any locks associated with it. This allows the client to reclaim locks without encountering edge conditions documented in section 8.4.3 of RFC 5661. Signed-off-by: Bryan Schumaker <bjschuma@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | NFS: Added TEST_STATEID callBryan Schumaker2011-07-121-0/+10
| | | | | | | | | | | | | | | | | | This patch adds in the xdr for doing a TEST_STATEID call with a single stateid. RFC 5661 allows multiple stateids to be tested in a single call, but only testing one keeps things simpler for now. Signed-off-by: Bryan Schumaker <bjschuma@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | NFS: Add SECINFO_NO_NAME procedureBryan Schumaker2011-07-121-0/+8
| | | | | | | | | | | | | | | | | | | | If the client is using NFS v4.1, then we can use SECINFO_NO_NAME to find the secflavor for the initial mount. If the server doesn't support SECINFO_NO_NAME then I fall back on the "guess and check" method used for v4.0 mounts. Signed-off-by: Bryan Schumaker <bjschuma@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | NFS: use scope from exchange_id to skip reclaimWeston Andros Adamson2011-07-121-0/+1
|/ | | | | | | | | | | can be skipped if the "eir_server_scope" from the exchange_id proc differs from previous calls. Also, in the future server_scope will be useful for determining whether client trunking is available Signed-off-by: Weston Andros Adamson <dros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFSv4.1: deprecate headerpadsz in CREATE_SESSIONBenny Halevy2011-06-151-1/+0
| | | | | | | | We don't support header padding yet so better off ditching it Reported-by: Sid Moore <learnmost@gmail.com> Signed-off-by: Benny Halevy <benny@tonian.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* pnfs: layoutreturnBenny Halevy2011-05-291-0/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | NFSv4.1 LAYOUTRETURN implementation Currently, does not support layout-type payload encoding. Signed-off-by: Alexandros Batsakis <batsakis@netapp.com> Signed-off-by: Andy Adamson <andros@citi.umich.edu> Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Dean Hildebrand <dhildeb@us.ibm.com> Signed-off-by: Fred Isaman <iisaman@citi.umich.edu> Signed-off-by: Fred Isaman <iisaman@netapp.com> Signed-off-by: Marc Eshel <eshel@almaden.ibm.com> Signed-off-by: Zhang Jingwang <zhangjingwang@nrchpc.ac.cn> [call pnfs_return_layout right before pnfs_destroy_layout] [remove assert_spin_locked from pnfs_clear_lseg_list] [remove wait parameter from the layoutreturn path.] [remove return_type field from nfs4_layoutreturn_args] [remove range from nfs4_layoutreturn_args] [no need to send layoutcommit from _pnfs_return_layout] [don't wait on sync layoutreturn] [fix layout stateid in layoutreturn args] [fixed NULL deref in _pnfs_return_layout] [removed recaim member of nfs4_layoutreturn_args] Signed-off-by: Benny Halevy <bhalevy@panasas.com>
* pnfs: support for non-rpc layout driversBenny Halevy2011-05-291-0/+2
| | | | | | | | | | | | | | Non-rpc layout driver such as for objects and blocks implement their own I/O path and error handling logic. Therefore bypass NFS-based error handling for these layout drivers. [fix lseg ref-count bugs, and null de-refs] [Fall out from: non-rpc layout drivers] Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> [get rid of PNFS_USE_RPC_CODE] [get rid of __nfs4_write_done_cb] [revert useless change in nfs4_write_done_cb] Signed-off-by: Benny Halevy <bhalevy@panasas.com>
* NFSv4.1: Ensure that layoutget uses the correct gfp modesTrond Myklebust2011-05-111-0/+1
| | | | | | | Currently, writebacks may end up recursing back into the filesystem due to GFP_KERNEL direct reclaims in the pnfs subsystem. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFSv4: Ensure we request the ordinary fileid when doing readdirplusTrond Myklebust2011-04-271-0/+2
| | | | | | | | | | | | | | When readdir() returns a directory entry for the root of a mounted filesystem, Linux follows the old convention of returning the inode number of the covered directory (despite newer versions of POSIX declaring that this is a bug). To ensure this continues to work, the NFSv4 readdir implementation requests the 'mounted-on-fileid' from the server. However, readdirplus also needs to instantiate an inode for this entry, and for that, we also need to request the real fileid as per this patch. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* Merge branch 'nfs-for-2.6.39' into nfs-for-nextTrond Myklebust2011-03-241-2/+28
|\
| * Cleanup XDR parsing for LAYOUTGET, GETDEVICEINFOWeston Andros Adamson2011-03-241-2/+4
| | | | | | | | | | | | | | | | | | changes LAYOUTGET and GETDEVICEINFO XDR parsing to: - not use vmap, which doesn't work on incoherent archs - use xdr_stream parsing for all xdr Signed-off-by: Weston Andros Adamson <dros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * NFSv4.1: layoutcommitAndy Adamson2011-03-231-0/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The filelayout driver sends LAYOUTCOMMIT only when COMMIT goes to the data server (as opposed to the MDS) and the data server WRITE is not NFS_FILE_SYNC. Only whole file layout support means that there is only one IOMODE_RW layout segment. Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Alexandros Batsakis <batsakis@netapp.com> Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> Signed-off-by: Dean Hildebrand <dhildeb@us.ibm.com> Signed-off-by: Fred Isaman <iisaman@citi.umich.edu> Signed-off-by: Mingyang Guo <guomingyang@nrchpc.ac.cn> Signed-off-by: Tao Guo <guotao@nrchpc.ac.cn> Signed-off-by: Zhang Jingwang <zhangjingwang@nrchpc.ac.cn> Tested-by: Boaz Harrosh <bharrosh@panasas.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Fred Isaman <iisaman@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * NFSv4.1: filelayout driver specific code for COMMITFred Isaman2011-03-231-0/+1
| | | | | | | | | | | | | | | | | | Implement all the hooks created in the previous patches. This requires exporting quite a few functions and adding a few structure fields. Signed-off-by: Fred Isaman <iisaman@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | NFS: use secinfo when crossing mountpointsBryan Schumaker2011-03-241-0/+1
| | | | | | | | | | | | | | | | | | A submount may use different security than the parent mount does. We should figure out what sec flavor the submount uses at mount time. Signed-off-by: Bryan Schumaker <bjschuma@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | NFS: Add secinfo procedureBryan Schumaker2011-03-241-0/+37
| | | | | | | | | | | | | | | | This patch adds the nfs4 operation secinfo as a valid nfs rpc operation. Signed-off-by: Bryan Schumaker <bjschuma@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | NFS: lookup supports alternate clientBryan Schumaker2011-03-241-1/+1
|/ | | | | | | | | A later patch will need to perform a lookup using an alternate client with a different security flavor. This patch adds support for doing that on NFS v4. Signed-off-by: Bryan Schumaker <bjschuma@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Fix a warning in fs/nfs/idmap.cTrond Myklebust2011-03-141-0/+1
| | | | | | | | | | | | | Commit 45a52a02072b2a7e265f024cfdb00127e08dd9f2 (NFS move nfs_client initialization into nfs_get_client) introduces a new warning in fs/nfs/idmap.c: ‘struct rpc_timeout’ declared inside parameter list Fix it by adding a forward declaration for the struct rpc_timeout in include/linux/nfs_xdr.h Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFSv4.1: pnfs filelayout driver writeFred Isaman2011-03-111-0/+2
| | | | | | | | | | | | | | | | | | | | Allows the pnfs filelayout driver to write to the data servers. Note that COMMIT to data servers will be implemented in a future patch. To avoid improper behavior, for the moment any WRITE to a data server that would also require a COMMIT to the data server is sent NFS_FILE_SYNC. Signed-off-by: Andy Adamson <andros@citi.umich.edu> Signed-off-by: Dean Hildebrand <dhildeb@us.ibm.com> Signed-off-by: Fred Isaman <iisaman@citi.umich.edu> Signed-off-by: Mingyang Guo <guomingyang@nrchpc.ac.cn> Signed-off-by: Oleg Drokin <green@linuxhacker.ru> Signed-off-by: Ricardo Labiaga <Ricardo.Labiaga@netapp.com> Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Fred Isaman <iisaman@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFSv4.1: implement generic pnfs layer write switchAndy Adamson2011-03-111-0/+1
| | | | | | | | | | | | | | | Signed-off-by: Andy Adamson <andros@citi.umich.edu> Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> Signed-off-by: Dean Hildebrand <dhildeb@us.ibm.com> Signed-off-by: Fred Isaman <iisaman@citi.umich.edu> Signed-off-by: J. Bruce Fields <bfields@fieldses.org> Signed-off-by: Mike Sager <sager@netapp.com> Signed-off-by: Ricardo Labiaga <Ricardo.Labiaga@netapp.com> Signed-off-by: Tao Guo <guotao@nrchpc.ac.cn> Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Fred Isaman <iisaman@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFSv4.1: Send lseg down into nfs_write_rpcsetupFred Isaman2011-03-111-0/+1
| | | | | | | | | We grab the lseg sent in from the doio function and attach it to each struct nfs_write_data created. This is how the lseg will be sent to the layout driver. Signed-off-by: Fred Isaman <iisaman@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFSv4.1: add callback to nfs4_write_doneFred Isaman2011-03-111-0/+1
| | | | | | | | Add callback that pnfs layout driver can use to do its own handling of data server WRITE response. Signed-off-by: Fred Isaman <iisaman@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFSv4.1: filelayout async error handlerAndy Adamson2011-03-111-0/+1
| | | | | | | | | | | Use our own async error handler. Mark the layout as failed and retry i/o through the MDS on specified errors. Update the mds_offset in nfs_readpage_retry so that a failed short-read retry to a DS gets correctly resent through the MDS. Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFSv4.1: filelayout readAndy Adamson2011-03-111-0/+1
| | | | | | | | | | | | | | | | | | | | Attempt a pNFS file layout read by setting up the nfs_read_data struct and calling nfs_initiate_read with the data server rpc client and the filelayout rpc call ops. Error handling is implemented in a subsequent patch. Signed-off-by: Andy Adamson <andros@citi.umich.edu> Signed-off-by: Dean Hildebrand <dhildeb@us.ibm.com> Signed-off-by: Fred Isaman <iisaman@citi.umich.edu> Signed-off-by: Fred Isaman <iisaman@netapp.com> Signed-off-by: Mingyang Guo <guomingyang@nrchpc.ac.cn> Signed-off-by: Oleg Drokin <green@linuxhacker.ru> Signed-off-by: Ricardo Labiaga <Ricardo.Labiaga@netapp.com> Tested-by: Guo Mingyang <guomingyang@nrchpc.ac.cn> Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-23 12:49:50 +0000