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* nfsd41: use session maxreqs for sequence target and highest slotidAndy Adamson2009-09-01
| | | | | | | | | | | | This fixes a bug in the sequence operation reply. The sequence operation returns the highest slotid it will accept in the future in sr_highest_slotid, and the highest slotid it prefers the client to use. Since we do not re-negotiate the session slot table yet, these should both always be set to the session ca_maxrequests. Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* nfsd41: bound forechannel drc size by memory usageAndy Adamson2009-09-01
| | | | | | | | | | | | By using the requested ca_maxresponsesize_cached * ca_maxresponses to bound a forechannel drc request size, clients can tailor a session to usage. For example, an I/O session (READ/WRITE only) can have a much smaller ca_maxresponsesize_cached (for only WRITE compound responses) and a lot larger ca_maxresponses to service a large in-flight data window. Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* NFSD: Fix a bug in the NFSv4 'supported attrs' mandatory attributeTrond Myklebust2009-09-01
| | | | | | | | | The fact that the filesystem doesn't currently list any alternate locations does _not_ imply that the fs_locations attribute should be marked as "unsupported". Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* nfsd41: expand solo sequence checkAndy Adamson2009-08-28
| | | | | | | | | | | | | | | Compounds consisting of only a sequence operation don't need any additional caching beyond the sequence information we store in the slot entry. Fix nfsd4_is_solo_sequence to identify this case correctly. The additional check for a failed sequence in nfsd4_store_cache_entry() is redundant, since the nfsd4_is_solo_sequence call lower down catches this case. The final ce_cachethis set in nfsd4_sequence is also redundant. Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* nfsd4: remove ACE4_IDENTIFIER_GROUP flag from GROUP@ entryFrank Filz2009-08-27
| | | | | | | | | | | | RFC 3530 says "ACE4_IDENTIFIER_GROUP flag MUST be ignored on entries with these special identifiers. When encoding entries with these special identifiers, the ACE4_IDENTIFIER_GROUP flag SHOULD be set to zero." It really shouldn't matter either way, but the point is that this flag is used to distinguish named users from named groups (since unix allows a group to have the same name as a user), so it doesn't really make sense to use it on a special identifier such as this.) Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* sunrpc: move the close processing after do recvfrom methodWei Yongjun2009-08-27
| | | | | | | | | | | sunrpc: "Move close processing to a single place" (d7979ae4a050a45b78af51832475001b68263d2a) moved the close processing before the recvfrom method. This may cause the close processing never to execute. So this patch moves it to the right place. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* nfsd41: renew_client must be called under the state lockBenny Halevy2009-08-27
| | | | | | | | | | | | Until we work out the state locking so we can use a spin lock to protect the cl_lru, we need to take the state_lock to renew the client. Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfsd41: Do not renew state on error] Signed-off-by: Ricardo Labiaga <Ricardo.Labiaga@netapp.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfsd41: Simplify exit code] Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* sunrpc: reply AUTH_BADCRED to RPCSEC_GSS with unknown serviceWei Yongjun2009-08-25
| | | | | | | | | | | | When an RPC message is received with RPCSEC_GSS with an unknown service (not RPC_GSS_SVC_NONE, RPC_GSS_SVC_INTEGRITY, or RPC_GSS_SVC_PRIVACY), svcauth_gss_accept() returns AUTH_BADCRED, but svcauth_gss_release() subsequently drops the response entirely, discarding the error. Fix that so the AUTH_BADCRED error is returned to the client. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* knfsd: Replace lock_kernel with a mutex in nfsd pool stats.Ryusei Yamaguchi2009-08-25
| | | | | | | | | | | | | | | | | | lock_kernel() in knfsd was replaced with a mutex. The later commit 03cf6c9f49a8fea953d38648d016e3f46e814991 ("knfsd: add file to export stats about nfsd pools") did not follow that change. This patch fixes the issue. Also move the get and put of nfsd_serv to the open and close methods (instead of start and stop methods) to allow atomic check and increment of reference count in the open method (where we can still return an error). Signed-off-by: Ryusei Yamaguchi <mandel59@gmail.com> Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Cc: Greg Banks <gnb@fmeh.org> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* nfsd: Fix unnecessary deny bits in NFSv4 ACLFrank Filz2009-08-24
| | | | | | | | | | | | | | The group deny entries end up denying tcy even though tcy was just allowed by the allow entry. This appears to be due to: ace->access_mask = mask_from_posix(deny, flags); instead of: ace->access_mask = deny_mask_from_posix(deny, flags); Denying a previously allowed bit has no effect, so this shouldn't affect behavior, but it's ugly. Signed-off-by: Frank Filz <ffilzlnx@us.ibm.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* nfsd41: sunrpc: svc_tcp_recv_record()Alexandros Batsakis2009-08-24
| | | | | | | | | Factor functionality out of svc_tcp_recvfrom() to simplify routine Signed-off-by: Alexandros Batsakis <batsakis@netapp.com> Signed-off-by: Ricardo Labiaga <Ricardo.Labiaga@netapp.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* nfsd: populate sin6_scope_id on callback address with scopeid from rq_addr ↵Jeff Layton2009-08-21
| | | | | | | | | | | | | | | | | on SETCLIENTID call When a SETCLIENTID call comes in, one of the args given is the svc_rqst. This struct contains an rq_addr field which holds the address that sent the call. If this is an IPv6 address, then we can use the sin6_scope_id field in this address to populate the sin6_scope_id field in the callback address. AFAICT, the rq_addr.sin6_scope_id is non-zero if and only if the client mounted the server's link-local address. Signed-off-by: Jeff Layton <jlayton@redhat.com> Acked-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* nfsd: add support for NFSv4 callbacks over IPv6Jeff Layton2009-08-21
| | | | | | | | | The framework to add this is all in place. Now, add the code to allow support for establishing a callback channel on an IPv6 socket. Signed-off-by: Jeff Layton <jlayton@redhat.com> Acked-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* nfsd: convert nfs4_cb_conn struct to hold address in sockaddr_storageJeff Layton2009-08-21
| | | | | | | | | | | ...rather than as a separate address and port fields. This will be necessary for implementing callbacks over IPv6. Also, convert gen_callback to use the standard rpcuaddr2sockaddr routine rather than its own private one. Signed-off-by: Jeff Layton <jlayton@redhat.com> Acked-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* nfsd: make nfs4_client->cl_addr a struct sockaddr_storageJeff Layton2009-08-21
| | | | | | | | It's currently a __be32, which isn't big enough to hold an IPv6 address. Signed-off-by: Jeff Layton <jlayton@redhat.com> Acked-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* sunrpc: add common routine for copying address portion of a sockaddrJeff Layton2009-08-21
| | | | | | Signed-off-by: Jeff Layton <jlayton@redhat.com> Acked-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* sunrpc: add routine for comparing addressesJeff Layton2009-08-21
| | | | | | | | | | | lockd needs these sort of routines, as does the NFSv4 callback code. Move lockd's routines into common code and rename them so that they can be used by others. Signed-off-by: Jeff Layton <jlayton@redhat.com> Acked-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* Merge branch 'nfs-for-2.6.32' of ↵J. Bruce Fields2009-08-21
|\ | | | | | | | | | | | | git://git.linux-nfs.org/projects/trondmy/nfs-2.6 into for-2.6.32-incoming Conflicts: net/sunrpc/cache.c
| * SUNRPC: Ensure that sunrpc gets initialised before nfs, lockd, etc...Trond Myklebust2009-08-21
| | | | | | | | | | | | | | We can oops if rpc_pipefs isn't properly initialised before we start to set up objects that depend upon it. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * nfs: fix compile error in rpc_pipefs.hJ. Bruce Fields2009-08-20
| | | | | | | | | | | | | | This include is needed for the definition of delayed_work. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * nfs: Remove reference to generic_osync_inode from a commentJan Kara2009-08-19
| | | | | | | | | | | | | | | | | | | | | | generic_file_direct_write() no longer calls generic_osync_inode() so remove the comment. CC: linux-nfs@vger.kernel.org CC: Neil Brown <neilb@suse.de> CC: "J. Bruce Fields" <bfields@fieldses.org> Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * SUNRPC: cache must take a reference to the cache detail's module on open()Trond Myklebust2009-08-19
| | | | | | | | | | | | | | Otherwise we Oops if the module containing the cache detail is removed before all cache readers have closed the file. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * NFS: Use the DNS resolver in the mount code.Trond Myklebust2009-08-19
| | | | | | | | | | | | | | In the referral code, use it to look up the new server's ip address if the fs_locations attribute contains a hostname. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * NFS: Add a dns resolver for use with NFSv4 referrals and migrationTrond Myklebust2009-08-19
| | | | | | | | | | | | | | | | | | | | | | | | | | The NFSv4 and NFSv4.1 protocols both allow for the redirection of a client from one server to another in order to support filesystem migration and replication. For full protocol support, we need to add the ability to convert a DNS host name into an IP address that we can feed to the RPC client. We'll reuse the sunrpc cache, now that it has been converted to work with rpc_pipefs. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * SUNRPC: Fix a typo in cache_pipefs_filesTrond Myklebust2009-08-19
| | | | | | | | | | | | | | We want the channel to be a regular file, so that we don't need to supply rpc_pipe_ops. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * Merge branch 'nfsv4_xdr_cleanups-for-2.6.32' into nfs-for-2.6.32Trond Myklebust2009-08-19
| |\ | | | | | | | | | | | | Conflicts: fs/nfs/nfs4xdr.c
| | * nfs: nfs4xdr: optimize low level decodingBenny Halevy2009-08-14
| | | | | | | | | | | | | | | | | | | | | do not increment decoding ptr if not needed. Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| | * nfs: nfs4xdr: get rid of READ_BUFBenny Halevy2009-08-14
| | | | | | | | | | | | | | | | | | | | | | | | Use xdr_inline_decode instead. Open code debug printout and error return. Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| | * nfs: nfs4xdr: simplify decode_exchange_id by reusing decode_opaque_inlineBenny Halevy2009-08-14
| | | | | | | | | | | | | | | Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| | * nfs: nfs4xdr: get rid of COPYMEMBenny Halevy2009-08-14
| | | | | | | | | | | | | | | | | | | | | Just directly call memcpy. Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| | * nfs: nfs4xdr: introduce decode_sessionid helperBenny Halevy2009-08-14
| | | | | | | | | | | | | | | Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| | * nfs: nfs4xdr: introduce decode_verifier helperBenny Halevy2009-08-14
| | | | | | | | | | | | | | | | | | Signed-off-by: Benny Halevy <bhalevy@panasas.com> [Trond: Fixed up an 'uninitialised variable' issue in decode_readdir] Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| | * nfs: nfs4xdr: introduce decode_opaque_fixed and decode_stateid helpersBenny Halevy2009-08-14
| | | | | | | | | | | | | | | Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| | * nfs: nfs4xdr: introduce print_overflow_msgBenny Halevy2009-08-14
| | | | | | | | | | | | | | | | | | | | | Part fo the nfs4xdr cleanup. READ_BUF will go away. Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| | * nfs: nfs4xdr: get rid of READTIMEBenny Halevy2009-08-14
| | | | | | | | | | | | | | | | | | | | | It has no users. Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| | * nfs: nfs4xdr: get rid of READ64Benny Halevy2009-08-14
| | | | | | | | | | | | | | | | | | | | | | | | s/READ64\(\*(.*)\)/p = xdr_decode_hyper(p, \1)/ s/READ64\((.*)\)/p = xdr_decode_hyper(p, &\1)/ Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| | * nfs: nfs4xdr: get rid of READ32Benny Halevy2009-08-14
| | | | | | | | | | | | | | | | | | | | | s/READ32\((.*)\)/\1 = be32_to_cpup(p++)/ Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| | * nfs: nfs4xdr: merge xdr_encode_int+xdr_encode_opaque_fixed into ↵Benny Halevy2009-08-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | xdr_encode_opaque use encode_string where appropriate. Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| | * nfs: nfs4xdr: optimize low level encodingBenny Halevy2009-08-14
| | | | | | | | | | | | | | | | | | | | | do not increment encoding ptr if not needed. Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| | * nfs: nfs4xdr: change RESERVE_SPACE macro into a static helperBenny Halevy2009-08-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In order to open code and expose the result pointer assignment. Alternatively, we can open code the call to xdr_reserve_space and do the BUG_ON an the error case at the call site. Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| | * nfs: nfs4xdr: encode_compound_hdr does not have to round up reserved bytesBenny Halevy2009-08-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | This is already done by xdr_reserve_space and since encode_compound_hdr is adding a byte count to "12" which is already word aligned, the xdr level rounding will work just as well. Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| | * nfs: nfs4xdr: optimize RESERVE_SPACE in encode_create_session and ↵Benny Halevy2009-08-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | encode_sequence Coalesce multilpe constant RESERVE_SPACEs into one Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| | * nfs: nfs4xdr: get rid of WRITEMEMBenny Halevy2009-08-14
| | | | | | | | | | | | | | | | | | | | | s/WRITEMEM(/p = xdr_encode_opaque_fixed(p, / Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| | * nfs: nfs4xdr: get rid of WRITE64Benny Halevy2009-08-14
| | | | | | | | | | | | | | | | | | | | | s/WRITE64/p = xdr_encode_hyper(p, / Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| | * nfs: nfs4xdr: get rid of WRITE32Benny Halevy2009-08-14
| | | | | | | | | | | | | | | | | | | | | s/WRITE32/*p++ = cpu_to_be32/ Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| | * sunrpc: ntoh -> be*_to_cpuBenny Halevy2009-08-14
| | | | | | | | | | | | | | | | | | | | | | | | ntohl is already defined as be32_to_cpu. be64_to_cpu has architecture specific optimized implementations. Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| | * sunrpc: hton -> cpu_to_be*Benny Halevy2009-08-14
| | | | | | | | | | | | | | | | | | | | | | | | htonl is already defined as cpu_to_be32. cpu_to_be64 has architecture specific optimized implementations. Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| | * Linux 2.6.31-rc6v2.6.31-rc6Linus Torvalds2009-08-13
| | |
| | * genirq: prevent wakeup of freed irq threadLinus Torvalds2009-08-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | free_irq() can remove an irqaction while the corresponding interrupt is in progress, but free_irq() sets action->thread to NULL unconditionally, which might lead to a NULL pointer dereference in handle_IRQ_event() when the hard interrupt context tries to wake up the handler thread. Prevent this by moving the thread stop after synchronize_irq(). No need to set action->thread to NULL either as action is going to be freed anyway. This fixes a boot crash reported against preempt-rt which uses the mainline irq threads code to implement full irq threading. [ tglx: removed local irqthread variable ] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| | * Merge branch 'perfcounters-fixes-for-linus' of ↵Linus Torvalds2009-08-13
| | |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'perfcounters-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: perf_counter: Report the cloning task as parent on perf_counter_fork() perf_counter: Fix an ipi-deadlock perf: Rework/fix the whole read vs group stuff perf_counter: Fix swcounter context invariance perf report: Don't show unresolved DSOs and symbols when -S/-d is used perf tools: Add a general option to enable raw sample records perf tools: Add a per tracepoint counter attribute to get raw sample perf_counter: Provide hw_perf_counter_setup_online() APIs perf list: Fix large list output by using the pager perf_counter, x86: Fix/improve apic fallback perf record: Add missing -C option support for specifying profile cpu perf tools: Fix dso__new handle() to handle deleted DSOs perf tools: Fix fallback to cplus_demangle() when bfd_demangle() is not available perf report: Show the tid too in -D perf record: Fix .tid and .pid fill-in when synthesizing events perf_counter, x86: Fix generic cache events on P6-mobile CPUs perf_counter, x86: Fix lapic printk message
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