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2008-12-23NFS: remove unused status from encode routinesAndy Adamson1-398/+180
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>
2008-12-23NFS: increment number of operations in each encode routineAndy Adamson1-170/+247
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>
2008-12-23NFS: fix comment placement in nfs4xdr.cBenny Halevy1-4/+4
Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2008-12-23NFS: fix tabs in nfs4xdr.cAndy Adamson1-245/+245
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>
2008-12-23NFS: remove white space from nfs4xdr.cAndy Adamson1-33/+29
Clean-up 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>
2008-12-23nfs: remove incorrect usage of nfs4 compound response hdr.statusBenny Halevy1-6/+0
3 call sites look at hdr.status before returning success. hdr.status must be zero in this case so there's no point in this. Currently, hdr.status is correctly processed at decode_op_hdr time if the op status cannot be decoded. Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2008-12-23nfs: return compound hdr.status when there are no op repliesBenny Halevy1-0/+2
When there are no op replies encoded in the compound reply hdr.status still contains the overall status of the compound rpc. This can happen, e.g., when the server returns a NFS4ERR_MINOR_VERS_MISMATCH error. Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2008-12-23NFSv4: Convert the open and close ops to use fmodeTrond Myklebust1-5/+5
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2008-12-23NFSv4: Convert delegation->type field to fmode_tTrond Myklebust1-2/+2
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2008-05-16nfs: replace remaining __FUNCTION__ occurrencesHarvey Harrison1-50/+50
__FUNCTION__ is gcc-specific, use __func__ Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Cc: "J. Bruce Fields" <bfields@fieldses.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2008-04-19nfs: fix printout of multiword bitfieldsFred Isaman1-5/+5
Benny points out that zero-padding of multiword bitfields is necessary, and that delimiting each word is nice to avoid endianess confusion. bhalevy: without zero padding output can be ambiguous. Also, since the printed array of two 32-bit unsigned integers is not a 64-bit number, delimiting the output with a semicolon makes more sense. Signed-off-by: Fred Isaman <iisaman@citi.umich.edu> Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2008-04-19nfs: return negative error value from nfs{,4}_stat_to_errnoBenny Halevy1-40/+40
All use sites for nfs{,4}_stat_to_errno negate their return value. It's more efficient to return a negative error from the stat_to_errno convertors rather than negating its return value everywhere. This also produces slightly smaller code. Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2008-04-19NFSv4: Only increment the sequence id if the server saw itTrond Myklebust1-1/+17
It is quite possible that the OPEN, CLOSE, LOCK, LOCKU,... compounds fail before the actual stateful operation has been executed (for instance in the PUTFH call). There is no way to tell from the overall status result which operations were executed from the COMPOUND. The fix is to move incrementing of the sequence id into the XDR layer, so that we do it as we process the results from the stateful operation. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2008-03-19NFS: clean up short packet handling for NFSv4 readdirJeff Layton1-10/+27
Currently, the NFS readdir decoders have a workaround for buggy servers that send an empty readdir response with the EOF bit unset. If the server sends a malformed response in some cases, this workaround kicks in and just returns an empty response rather than returning a proper error to the caller. This patch does 3 things: 1) have malformed responses with no entries return error (-EIO) 2) preserve existing workaround for servers that send empty responses with the EOF marker unset. 3) Add some comments to clarify the logic in decode_readdir(). Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2008-03-14NFS: fix encode_fsinfo_maxszFred Isaman1-1/+1
The previous value was not taking into account space for bitmap array size. Signed-off-by: Fred Isaman <iisaman@citi.umich.edu> Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2008-01-30NFS: Ensure NFSv4 SETCLIENTID send buffer is large enoughChuck Lever1-4/+6
Ensure that the RPC buffer size specified for NFSv4 SETCLIENTID procedures matches what we are encoding into the buffer. See the definition of struct nfs4_setclientid {} and the encode_setclientid() function. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2008-01-30NFS: Change sign of some loop indices in nfs4xdr.cChuck Lever1-8/+8
Nit: Eliminate some mixed sign comparisons in loop indices. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2008-01-30NFS: Use unsigned intermediates for manipulating header lengths (NFSv4 XDR)Chuck Lever1-5/+9
Clean up: prevent length underflow and mixed sign comparison when unmarshalling NFS version 4 getacl, readdir, and readlink replies. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09NFSv4: Make NFSv4 ACCESS calls return attributes too...Trond Myklebust1-7/+20
It doesn't really make sense to cache an access call without also revalidating the attributes. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09SUNRPC: mark bulk read/write data in xdrbuf\"Talpey, Thomas\1-0/+2
Adds a flag word to the xdrbuf struct which indicates any bulk disposition of the data. This enables RPC transport providers to marshal it efficiently/appropriately, and may enable other optimizations. Signed-off-by: Tom Talpey <tmt@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09NFS: Convert printk's to dprintk's in fs/nfs/nfs?xdr.cChuck Lever1-22/+21
Due to recent edict to replace or remove printk's that can be triggered en masse by remote misbehavior. Left a few that only occur just before a BUG. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-19NFS: Introduce struct nfs_removeargs+nfs_removeresTrond Myklebust1-4/+4
We need a common structure for setting up an unlink() rpc call in order to fix the asynchronous unlink code. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-19NFSv4: Fix the nfsv4 readlink reply buffer alignmentTrond Myklebust1-10/+11
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-19NFSv4: Fix the readdir reply buffer alignmentTrond Myklebust1-13/+14
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-19NFSv4: More NFSv4 xdr cleanupsTrond Myklebust1-74/+134
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-19NFSv4: Try to recover from getfh failures in nfs4_xdr_dec_openTrond Myklebust1-4/+4
Try harder to recover the open state if the server failed to return a filehandle. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-19NFSv4: Don't fail nfs4_xdr_dec_open if decode_restorefh() failedTrond Myklebust1-1/+1
We can already easily recover from that inside _nfs4_proc_open(). Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFSv4: Reduce the chances of an open_owner identifier collisionTrond Myklebust1-12/+15
Currently we just use a 32-bit counter. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFSv4: Fix underestimate of NFSv4 lookup request sizeTrond Myklebust1-6/+11
Also fix up the underestimate of fs_locations Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFSv4: Fix the underestimate of NFSv4 open request sizeTrond Myklebust1-18/+45
The maximum size depends on the filename size and a number of other elements which are currently not being counted. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFSv4: Fix the NFSv4 owner and owner_group size estimatesTrond Myklebust1-1/+3
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10SUNRPC: Remove the tk_auth macro...Trond Myklebust1-5/+5
We should almost always be deferencing the rpc_auth struct by means of the credential's cr_auth field instead of the rpc_clnt->cl_auth anyway. Fix up that historical mistake, and remove the macro that propagated it. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFS4: on a O_EXCL OPEN make sure SETATTR sets the fields holding the verifierJeff Layton1-2/+7
The Linux NFS4 client simply skips over the bitmask in an O_EXCL open call and so it doesn't bother to reset any fields that may be holding the verifier. This patch has us save the first two words of the bitmask (which is all the current client has #defines for). The client then later checks this bitmask and turns on the appropriate flags in the sattr->ia_verify field for the following SETATTR call. This patch only currently checks to see if the server used the atime and mtime slots for the verifier (which is what the Linux server uses for this). I'm not sure of what other fields the server could reasonably use, but adding checks for others should be trivial. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-05-14NFS: Fix more sparse warningsTrond Myklebust1-3/+3
- fs/nfs/nfs4xdr.c:2499:42: warning: incorrect type in argument 2 (different signedness) - fs/nfs/nfs4xdr.c:2658:49: warning: incorrect type in argument 4 (different explicit signedness) - fs/nfs/nfs4xdr.c:2683:50: warning: incorrect type in argument 4 (different explicit signedness) - fs/nfs/nfs4xdr.c:3063:68: warning: incorrect type in argument 4 (different explicit signedness) - fs/nfs/nfs4xdr.c:3065:68: warning: incorrect type in argument 4 (different explicit signedness) - fs/nfs/callback_xdr.c:138:31: warning: incorrect type in argument 2 (different signedness) Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-05-14NFS4: Fix incorrect use of sizeof() in fs/nfs/nfs4xdr.cTrond Myklebust1-45/+45
The XDR code should not depend on the physical allocation size of structures like nfs4_stateid and nfs4_verifier since those may have to change at some future date. We therefore replace all uses of sizeof() with constants like NFS4_VERIFIER_SIZE and NFS4_STATEID_SIZE. This also has the side-effect of fixing some warnings of the type format ‘%u’ expects type ‘unsigned int’, but argument X has type ‘long unsigned int’ on 64-bit systems Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-05-09NFS: Clean up NFSv4 XDR error messageChuck Lever1-3/+5
Make it more useful for debugging purposes. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-05-09NFS: NFS client underestimates how large an NFSv4 SETATTR reply can beChuck Lever1-1/+2
The maximum size of an NFSv4 SETATTR compound reply should include the GETATTR operation that we send. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-04-30SUNRPC: RPC buffer size estimates are too largeChuck Lever1-5/+2
The RPC buffer size estimation logic in net/sunrpc/clnt.c always significantly overestimates the requirements for the buffer size. A little instrumentation demonstrated that in fact rpc_malloc was never allocating the buffer from the mempool, but almost always called kmalloc. To compute the size of the RPC buffer more precisely, split p_bufsiz into two fields; one for the argument size, and one for the result size. Then, compute the sum of the exact call and reply header sizes, and split the RPC buffer precisely between the two. That should keep almost all RPC buffers within the 2KiB buffer mempool limit. And, we can finally be rid of RPC_SLACK_SPACE! Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-02-03NFSv4: Fix NFS4_enc_server_caps_sz/NFS4_dec_server_caps_szTrond Myklebust1-0/+2
Insert missing encode_putfh_maxsz/decode_putfh_maxsz Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-10-20[PATCH] xdr annotations: NFS readdir entriesAl Viro1-1/+1
on-the-wire data is big-endian [in large part pulled from Alexey's patch] Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Acked-by: Trond Myklebust <trond.myklebust@fys.uio.no> Acked-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-20[PATCH] xdr annotations: NFSv4Al Viro1-177/+181
on-the-wire data is big-endian [in large part pulled from Alexey's patch] Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Acked-by: Trond Myklebust <trond.myklebust@fys.uio.no> Acked-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-22NFS: Use cached page as buffer for NFS symlink requestsChuck Lever1-4/+4
Now that we have a copy of the symlink path in the page cache, we can pass a struct page down to the XDR routines instead of a string buffer. Test plan: Connectathon, all NFS versions. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-09-22NFS: Rename nfs_server::nfs4_stateDavid Howells1-5/+5
Rename nfs_server::nfs4_state to nfs_client as it will be used to represent the client state for NFS2 and NFS3 also. Signed-Off-By: David Howells <dhowells@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-09-22NFS: Rename struct nfs4_client to struct nfs_clientDavid Howells1-9/+9
Rename struct nfs4_client to struct nfs_client so that it can become the basis for a general client record for NFS2 and NFS3 in addition to NFS4. Signed-Off-By: David Howells <dhowells@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-09-22NFS: Disambiguate nfs_stat_to_errno()David Howells1-7/+7
Rename the NFS4 version of nfs_stat_to_errno() so that it doesn't conflict with the common one used by NFS2 and NFS3. Signed-Off-By: David Howells <dhowells@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-08-24NFS: Check lengths more thoroughly in NFS4 readdir XDR decodeDavid Howells1-10/+11
Check the bounds of length specifiers more thoroughly in the XDR decoding of NFS4 readdir reply data. Currently, if the server returns a bitmap or attr length that causes the current decode point pointer to wrap, this could go undetected (consider a small "negative" length on a 32-bit machine). Also add a check into the main XDR decode handler to make sure that the amount of data is a multiple of four bytes (as specified by RFC-1014). This makes sure that we can do u32* pointer subtraction in the NFS client without risking an undefined result (the result is undefined if the pointers are not correctly aligned with respect to one another). Signed-Off-By: David Howells <dhowells@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> (cherry picked from 5861fddd64a7eaf7e8b1a9997455a24e7f688092 commit)
2006-06-09NFSv4: A root pathname is sent as a zero component4Andy Adamson1-1/+10
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-06-09NFSv4: Define an fs_locations bitmapManoj Naik1-2/+9
This is (similar to getattr bitmap) but includes fs_locations and mounted_on_fileid attributes. Use this bitmap for encoding in fs_locations requests. Note: We can probably do better by requesting locations as part of fsinfo itself. Signed-off-by: Manoj Naik <manoj@almaden.ibm.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-06-09NFSv4: Decode mounted_on_fileid attribute in getattr.Manoj Naik1-0/+21
It is ignored if fileid is also requested. This will be used on referrals (fs_locations). Signed-off-by: Manoj Naik <manoj@almaden.ibm.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-06-09NFSv4: convert fs-locations-components to conform to RFC3530Manoj Naik1-9/+71
Use component4-style formats for decoding list of servers and pathnames in fs_locations. Signed-off-by: Manoj Naik <manoj@almaden.ibm.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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