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| * | | | | | | nfs4: renewd renew operations should take/put a client referenceAlexandros Batsakis2010-03-021-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | renewd sends RENEW requests to the NFS server in order to renew state. As the request is asynchronous, renewd should take a reference to the nfs_client to prevent concurrent umounts from freeing the client Signed-off-by: Alexandros Batsakis <batsakis@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | | | | | | nfs41: renewd sequence operations should take/put client referenceAlexandros Batsakis2010-03-021-6/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | renewd sends SEQUENCE requests to the NFS server in order to renew state. As the request is asynchronous, renewd should take a reference to the nfs_client to prevent concurrent umounts from freeing the session/client Signed-off-by: Alexandros Batsakis <batsakis@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | | | | | | nfs: prevent backlogging of renewd requestsAlexandros Batsakis2010-03-022-21/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If the renewd send queue gets backlogged (e.g., if the server goes down), we will keep filling the queue with periodic RENEW/SEQUENCE requests. This patch schedules a new renewd request if and only if the previous one returns (either success or failure) Signed-off-by: Alexandros Batsakis <batsakis@netapp.com> [Trond.Myklebust@netapp.com: moved nfs4_schedule_state_renewal() into separate nfs4_renew_release() and nfs41_sequence_release() callbacks to ensure correct behaviour on call setup failure] Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | | | | | | nfs: kill renewd before clearing client minor versionAlexandros Batsakis2010-03-021-24/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | renewd should be synchronously killed before we destroy the session in nfs4_clear_minor_version Signed-off-by: Alexandros Batsakis <batsakis@netapp.com> [Trond.Myklebust@netapp.com: clean up to remove 'unused function warning when !CONFIG_NFS_V4] Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | | | | | | NFS: Make close(2) asynchronous when closing NFS O_DIRECT filesChuck Lever2010-02-101-6/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For NFSv2 and v3: O_DIRECT writes are always synchronous, and aren't cached, so nothing should be flushed when closing an NFS O_DIRECT file descriptor. Thus there are no write errors to report on close(2). In addition, there's no cached data to verify on the next open(2), so we don't need clean GETATTR results at close time to compare with. Thus, there's no need for the nfs_revalidate_inode() call when closing an NFS O_DIRECT file. This reduces the number of synchronous on-the-wire requests for a simple open-write-close of an NFS O_DIRECT file by roughly 20%. For NFSv4: Call nfs4_do_close() with wait set to zero when closing an NFS O_DIRECT file. The CLOSE will go on the wire, but the application won't wait for it to complete. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | | | | | | NFS: Improve NFS iostat byte count accuracy for writesChuck Lever2010-02-101-3/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The bytes counted by the performance counters for NFS writes should reflect write and sync errors. If the write(2) system call reports an error, the bytes should not be counted. And, if the write is short, the actual number of bytes that was written should be counted, not the number of bytes that was requested. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | | | | | | NFS: Account for NFS bytes read via the splice APIChuck Lever2010-02-101-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Bytes read via the splice API should be accounted for in the NFS performance statistics. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | | | | | | NFS: Fix byte accounting for generic NFS readsChuck Lever2010-02-101-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, the NFS I/O counters count the number of bytes requested by applications, rather than the number of bytes actually read by the system calls. The number of bytes requested for reads is actually not that useful, because the value is usually a buffer size for reads. That is, that requested number is usually a maximum, and frequently doesn't reflect the actual number of bytes read. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | | | | | | NFS: Proper accounting for NFS VFS callsChuck Lever2010-02-101-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Nit: The VFSOPEN and VFSFLUSH counters are function call counters. Count every call to these routines. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | | | | | | nfs41 do not allocate unused back channel pagesAndy Adamson2010-02-102-0/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Andy Adamson <andros@netapp.com> [Trond.Myklebust@netapp.com: moved definition of svc_is_backchannel() into include/linux/sunrpc/bc_xprt.h.] Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | | | | | | nfs41: cleanup callback code to use __be32 typeAndy Adamson2010-02-102-22/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | | | | | | nfs41: clear NFS4CLNT_RECALL_SLOT bit on session resetAndy Adamson2010-02-101-8/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | | | | | | nfs41: fix nfs4_callback_recallslotAndy Adamson2010-02-101-3/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Return NFS4_OK if target high slotid equals enforced high slotid. Fix nfs_client reference leak. Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | | | | | | nfs41: resize slot table in resetAndy Adamson2010-02-101-19/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When session is reset, client can renegotiate slot table size. Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | | | | | | nfs41: implement cb_recall_slotAndy Adamson2010-02-106-1/+109
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Drain the fore channel and reset the max_slots to the new value. Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | | | | | | nfs41: back channel drc minimal implementationAndy Adamson2010-02-102-12/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For now the back channel ca_maxresponsesize_cached is 0 and there is no backchannel DRC. Return NFS4ERR_REP_TOO_BIG_TO_CACHE when a cb_sequence cachethis is true. When it is false, return NFS4ERR_RETRY_UNCACHED_REP as the next operation error. Remember the replay error accross compound operation processing. Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | | | | | | nfs41: prepare for back channel drcAndy Adamson2010-02-101-10/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make all cb_sequence arguments available to verify_seqid which will make replay decisions. Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | | | | | | nfs41: remove uneeded checks in callback processingAndy Adamson2010-02-101-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | All callback operations have arguments to decode and require processing. The preprocess_nfs4X_op functions catch unsupported or illegal ops so decode_args and process_op pointers are always non NULL. Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | | | | | | nfs41: directly encode back channel errorAndy Adamson2010-02-101-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Skip all other processing when error is encountered. Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | | | | | | nfs41: fix wrong error on callback header xdr overflowAndy Adamson2010-02-101-10/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Set NFS4ERR_RESOURCE as CB_COMPOUND status and do not return an op on decode_op_hdr or encode_op_hdr buffer overflow. NFS4ERR_RESOURCE is correct for v4.0. Will fix the return for v4.1 along with all the other NFS4ERR_RESOURCE errors in a later patch. Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | | | | | | nfs41: Process callback's referring call listMike Sager2010-02-101-5/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If a CB_SEQUENCE referring call triple matches a slot table entry, the client is still waiting for a response to the original request. In this case, return NFS4ERR_DELAY as the response to the callback. Signed-off-by: Mike Sager <sager@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | | | | | | nfs41: Check slot table for referring callsMike Sager2010-02-101-0/+55
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Traverse a list of referring calls and look for a session/slot/seq number match. Signed-off-by: Mike Sager <sager@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | | | | | | nfs41: Adjust max cache response size valueMike Sager2010-02-102-5/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For the CREATE_SESSION attribute ca_maxresponsesize_cached, calculate the value based on the rpc reply header size plus the maximum nfs compound reply size. Signed-off-by: Mike Sager <sager@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | | | | | | xprtsock.c: make bc_{malloc/free} staticH Hartley Sweeten2010-02-101-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | xprtsock.c: make bc_{malloc/free} static The server backchannel buf_alloc and buf_free methods should be static since they are not used outside this file. Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: J. Bruce Fields <bfields@fieldses.org> Cc: Neil Brown <neilb@suse.de> Cc: Trond Myklebust <Trond.Myklebust@netapp.com> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | | | | | | SUNRPC: Don't display zero scope IDsChuck Lever2010-02-101-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A zero scope ID means that it wasn't set, so we don't need to append it to presentation format addresses. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Acked-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | | | | | | SUNRPC: Deprecate support for site-local addressesChuck Lever2010-02-101-4/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | RFC 3879 "formally deprecates" site-local IPv6 addresses. We interpret that to mean that the scope ID is ignored for all but link-local addresses. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Acked-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | | | | | | nfs: handle NFSv2 -EKEYEXPIRED returns from RPC layer appropriatelyJeff Layton2010-02-101-0/+41
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a wrapper around rpc_call_sync that handles -EKEYEXPIRED errors from the RPC layer as it would an -EJUKEBOX error if NFSv2 had such a thing. Also, add a handler for that error for async calls that makes it resubmit the RPC on -EKEYEXPIRED. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | | | | | | nfs: handle NFSv3 -EKEYEXPIRED errors as we would -EJUKEBOXJeff Layton2010-02-101-4/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We're using -EKEYEXPIRED to indicate that a krb5 credcache contains an expired ticket and that we should have the NFS layer retry the RPC call instead of returning an error back to the caller. Handle this as we would an -EJUKEBOX error return. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | | | | | | nfs4: handle -EKEYEXPIRED errors from RPC layerJeff Layton2010-02-102-2/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If a KRB5 TGT ticket expires, we don't want to return an error immediatel. If someone has a long running job and just forgets to run "kinit" in time then this will make it fail. Instead, we want to treat this situation as we would NFS4ERR_DELAY and retry the upcall after delaying a bit with an exponential backoff. This patch just makes any place that would handle NFS4ERR_DELAY also handle -EKEYEXPIRED the same way. In the future, we may want to be more sophisticated however and handle hard vs. soft mounts differently, or specify some upper limit on how long we'll wait for a new TGT to be acquired. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | | | | | | sunrpc: parse and return errors reported by gssdJeff Layton2010-02-101-2/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The kernel currently ignores any error code sent by gssd and always considers it to be -EACCES. In order to better handle the situation of an expired KRB5 TGT, the kernel needs to be able to parse and deal with the errors that gssd sends. Aside from -EACCES the only error we care about is -EKEYEXPIRED, which we're using to indicate that the upper layers should retry the call a little later. To maintain backward compatibility with older gssd's, any error other than -EKEYEXPIRED is interpreted as -EACCES. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | | | | | | | Merge branch 'for-linus' of ↵Linus Torvalds2010-03-0512-144/+238
|\ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs: fs/9p: Add hardlink support to .u extension 9P2010.L handshake: .L protocol negotiation 9P2010.L handshake: Remove "dotu" variable 9P2010.L handshake: Add mount option 9P2010.L handshake: Add VFS flags net/9p: Handle mount errors correctly. net/9p: Remove MAX_9P_CHAN limit net/9p: Add multi channel support.
| * | | | | | | | fs/9p: Add hardlink support to .u extensionAneesh Kumar K.V2010-03-051-1/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For regular file and directories we put the link count in th extension field in a tagged string format. Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
| * | | | | | | | 9P2010.L handshake: .L protocol negotiationSripathi Kodi2010-03-051-3/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds 9P2010.L protocol negotiation with the server Signed-off-by: Sripathi Kodi <sripathik@in.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
| * | | | | | | | 9P2010.L handshake: Remove "dotu" variableSripathi Kodi2010-03-056-65/+87
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Removes 'dotu' variable and make everything dependent on 'proto_version' field. Signed-off-by: Sripathi Kodi <sripathik@in.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
| * | | | | | | | 9P2010.L handshake: Add mount optionSripathi Kodi2010-03-052-0/+43
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add new mount V9FS mount option to specify protocol version This patch adds a new mount option to specify protocol version. With this option it is possible to use "-o version=" switch to specify 9P protocol version to use. Valid options for version are: 9p2000 9p2000.u 9p2010.L Signed-off-by: Sripathi Kodi <sripathik@in.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
| * | | | | | | | 9P2010.L handshake: Add VFS flagsSripathi Kodi2010-03-055-28/+36
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add 9P2000.u and 9P2010.L protocol flags to V9FS VFS This patch adds 9P2000.u and 9P2010.L protocol flags into V9FS VFS side code and removes the single flag used for 'extended'. Signed-off-by: Sripathi Kodi <sripathik@in.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
| * | | | | | | | net/9p: Handle mount errors correctly.Aneesh Kumar K.V2010-03-051-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With this patch we have # mount -t 9p -o trans=virtio virtio2 /mnt/ # mount -t 9p -o trans=virtio virtio2 /mnt/ mount: virtio2 already mounted or /mnt/ busy mount: according to mtab, virtio2 is already mounted on /mnt # mount -t 9p -o trans=virtio virtio3 /mnt/ -o debug=0xfff mount: special device virtio3 does not exist Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
| * | | | | | | | net/9p: Remove MAX_9P_CHAN limitAneesh Kumar K.V2010-03-052-46/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use a list to track the channel instead of statically allocated array Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
| * | | | | | | | net/9p: Add multi channel support.Aneesh Kumar K.V2010-03-052-7/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is needed for supporting multiple mount points. We can find out the device names to be used with mount by checking /sys/devices/virtio-pci/virtio*/device file if the device file have value 9 then the specific virtio device can be used for mounting. ex: #cat /sys/devices/virtio-pci/virtio1/device 9 now we can mount using # mount -t 9p -o trans=virtio virtio1 /mnt/ Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
* | | | | | | | | Merge branch 'for_linus' of ↵Linus Torvalds2010-03-0587-1545/+1554
|\ \ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6 * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6: (33 commits) quota: stop using QUOTA_OK / NO_QUOTA dquot: cleanup dquot initialize routine dquot: move dquot initialization responsibility into the filesystem dquot: cleanup dquot drop routine dquot: move dquot drop responsibility into the filesystem dquot: cleanup dquot transfer routine dquot: move dquot transfer responsibility into the filesystem dquot: cleanup inode allocation / freeing routines dquot: cleanup space allocation / freeing routines ext3: add writepage sanity checks ext3: Truncate allocated blocks if direct IO write fails to update i_size quota: Properly invalidate caches even for filesystems with blocksize < pagesize quota: generalize quota transfer interface quota: sb_quota state flags cleanup jbd: Delay discarding buffers in journal_unmap_buffer ext3: quota_write cross block boundary behaviour quota: drop permission checks from xfs_fs_set_xstate/xfs_fs_set_xquota quota: split out compat_sys_quotactl support from quota.c quota: split out netlink notification support from quota.c quota: remove invalid optimization from quota_sync_all ... Fixed trivial conflicts in fs/namei.c and fs/ufs/inode.c
| * | | | | | | | | quota: stop using QUOTA_OK / NO_QUOTAChristoph Hellwig2010-03-052-27/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Just use 0 / -EDQUOT directly - that's what it translates to anyway. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jan Kara <jack@suse.cz>
| * | | | | | | | | dquot: cleanup dquot initialize routineChristoph Hellwig2010-03-0539-145/+141
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Get rid of the initialize dquot operation - it is now always called from the filesystem and if a filesystem really needs it's own (which none currently does) it can just call into it's own routine directly. Rename the now static low-level dquot_initialize helper to __dquot_initialize and vfs_dq_init to dquot_initialize to have a consistent namespace. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jan Kara <jack@suse.cz>
| * | | | | | | | | dquot: move dquot initialization responsibility into the filesystemChristoph Hellwig2010-03-0532-56/+220
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently various places in the VFS call vfs_dq_init directly. This means we tie the quota code into the VFS. Get rid of that and make the filesystem responsible for the initialization. For most metadata operations this is a straight forward move into the methods, but for truncate and open it's a bit more complicated. For truncate we currently only call vfs_dq_init for the sys_truncate case because open already takes care of it for ftruncate and open(O_TRUNC) - the new code causes an additional vfs_dq_init for those which is harmless. For open the initialization is moved from do_filp_open into the open method, which means it happens slightly earlier now, and only for regular files. The latter is fine because we don't need to initialize it for operations on special files, and we already do it as part of the namespace operations for directories. Add a dquot_file_open helper that filesystems that support generic quotas can use to fill in ->open. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jan Kara <jack@suse.cz>
| * | | | | | | | | dquot: cleanup dquot drop routineChristoph Hellwig2010-03-0522-59/+49
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Get rid of the drop dquot operation - it is now always called from the filesystem and if a filesystem really needs it's own (which none currently does) it can just call into it's own routine directly. Rename the now static low-level dquot_drop helper to __dquot_drop and vfs_dq_drop to dquot_drop to have a consistent namespace. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jan Kara <jack@suse.cz>
| * | | | | | | | | dquot: move dquot drop responsibility into the filesystemChristoph Hellwig2010-03-059-1/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently clear_inode calls vfs_dq_drop directly. This means we tie the quota code into the VFS. Get rid of that and make the filesystem responsible for the drop inside the ->clear_inode superblock operation. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jan Kara <jack@suse.cz>
| * | | | | | | | | dquot: cleanup dquot transfer routineChristoph Hellwig2010-03-0517-29/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Get rid of the transfer dquot operation - it is now always called from the filesystem and if a filesystem really needs it's own (which none currently does) it can just call into it's own routine directly. Rename the now static low-level dquot_transfer helper to __dquot_transfer and vfs_dq_transfer to dquot_transfer to have a consistent namespace, and make the new dquot_transfer return a normal negative errno value which all callers expect. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jan Kara <jack@suse.cz>
| * | | | | | | | | dquot: move dquot transfer responsibility into the filesystemChristoph Hellwig2010-03-058-38/+65
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently notify_change calls vfs_dq_transfer directly. This means we tie the quota code into the VFS. Get rid of that and make the filesystem responsible for the transfer. Most filesystems already do this, only ufs and udf need the code added, and for jfs it needs to be enabled unconditionally instead of only when ACLs are enabled. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jan Kara <jack@suse.cz>
| * | | | | | | | | dquot: cleanup inode allocation / freeing routinesChristoph Hellwig2010-03-0518-107/+61
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Get rid of the alloc_inode and free_inode dquot operations - they are always called from the filesystem and if a filesystem really needs their own (which none currently does) it can just call into it's own routine directly. Also get rid of the vfs_dq_alloc/vfs_dq_free wrappers and always call the lowlevel dquot_alloc_inode / dqout_free_inode routines directly, which now lose the number argument which is always 1. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jan Kara <jack@suse.cz>
| * | | | | | | | | dquot: cleanup space allocation / freeing routinesChristoph Hellwig2010-03-0529-383/+258
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Get rid of the alloc_space, free_space, reserve_space, claim_space and release_rsv dquot operations - they are always called from the filesystem and if a filesystem really needs their own (which none currently does) it can just call into it's own routine directly. Move shared logic into the common __dquot_alloc_space, dquot_claim_space_nodirty and __dquot_free_space low-level methods, and rationalize the wrappers around it to move as much as possible code into the common block for CONFIG_QUOTA vs not. Also rename all these helpers to be named dquot_* instead of vfs_dq_*. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jan Kara <jack@suse.cz>
| * | | | | | | | | ext3: add writepage sanity checksDmitry Monakhov2010-03-051-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - There is theoretical possibility to perform writepage on RO superblock. Add explicit check for what case. - Page must being locked before writepage. Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org> Signed-off-by: Jan Kara <jack@suse.cz>
generated by cgit v1.1 at 2025-01-31 01:17:51 +0000