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* netfilter: nfnetlink_log: send complete hardware headerEric Leblond2008-07-212-0/+11
| | | | | | | | | | | | | This patch adds some fields to NFLOG to be able to send the complete hardware header with all necessary informations. It sends to userspace: * the type of hardware link * the lenght of hardware header * the hardware header Signed-off-by: Eric Leblond <eric@inl.fr> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* netfilter: xt_time: fix time's time_mt()'s use of do_div()David Howells2008-07-211-1/+1
| | | | | | | | | | | | Fix netfilter xt_time's time_mt()'s use of do_div() on an s64 by using div_s64() instead. This was introduced by patch ee4411a1b1e0b679c99686629b5eab5a072ce49f ("[NETFILTER]: x_tables: add xt_time match"). Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* netfilter: accounting rework: ct_extend + 64bit counters (v4)Krzysztof Piotr Oledzki2008-07-2115-86/+248
| | | | | | | | | | | | | | | | | | | | | | | | | | | Initially netfilter has had 64bit counters for conntrack-based accounting, but it was changed in 2.6.14 to save memory. Unfortunately in-kernel 64bit counters are still required, for example for "connbytes" extension. However, 64bit counters waste a lot of memory and it was not possible to enable/disable it runtime. This patch: - reimplements accounting with respect to the extension infrastructure, - makes one global version of seq_print_acct() instead of two seq_print_counters(), - makes it possible to enable it at boot time (for CONFIG_SYSCTL/CONFIG_SYSFS=n), - makes it possible to enable/disable it at runtime by sysctl or sysfs, - extends counters from 32bit to 64bit, - renames ip_conntrack_counter -> nf_conn_counter, - enables accounting code unconditionally (no longer depends on CONFIG_NF_CT_ACCT), - set initial accounting enable state based on CONFIG_NF_CT_ACCT - removes buggy IPCT_COUNTER_FILLING event handling. If accounting is enabled newly created connections get additional acct extend. Old connections are not changed as it is not possible to add a ct_extend area to confirmed conntrack. Accounting is performed for all connections with acct extend regardless of a current state of "net.netfilter.nf_conntrack_acct". Signed-off-by: Krzysztof Piotr Oledzki <ole@ans.pl> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* netlink: add NLA_PUT_BE64 macroKrzysztof Piotr Oledzki2008-07-211-0/+3
| | | | | | | | Add NLA_PUT_BE64 macro required for 64bit counters in netfilter Signed-off-by: Krzysztof Piotr Oledzki <ole@ans.pl> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* netfilter: nf_nat_core: eliminate useless find_appropriate_src for ↵Changli Gao2008-07-211-4/+4
| | | | | | | | IP_NAT_RANGE_PROTO_RANDOM Signed-off-by: Changli Gao <xiaosuo@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* hdlcdrv: Fix CRC calculation.Micah Dowty2008-07-211-0/+1
| | | | | | | | | | | | | This is a trivial patch against the hdlcdrv module that fixes its CRC calculation. The finished CRC was overwriting the first two bytes of each packet rather than being appended to the end. I've tested this with 2.6.8 and 2.6.10-rc1, but hdlcdrv hasn't changed much recently so it should work with many other kernel versions. Signed-off-by: Micah Dowty <micah@navi.cx> Acked-by: Thomas Sailer <t.sailer@alumni.ethz.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* Revert "pkt_sched: Make default qdisc nonshared-multiqueue safe."David S. Miller2008-07-211-22/+77
| | | | | | | | | | This reverts commit a0c80b80e0fb48129e4e9d6a9ede914f9ff1850d. After discussions with Jamal and Herbert on netdev, we should provide at least minimal prioritization at the qdisc level even in multiqueue situations. Signed-off-by: David S. Miller <davem@davemloft.net>
* net: In __netif_schedule() use WARN_ON instead of BUG_ONLinus Torvalds2008-07-211-1/+2
| | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* net: Improve simple_tx_hash().David S. Miller2008-07-211-13/+21
| | | | | | | | | | | | | | | Based upon feedback from Eric Dumazet and Andi Kleen. Cure several deficiencies in simple_tx_hash() by using jhash + reciprocol multiply. 1) Eliminates expensive modulus operation. 2) Makes hash less attackable by using random seed. 3) Eliminates endianness hash distribution issues. Signed-off-by: David S. Miller <davem@davemloft.net>
* pkt_sched: Remove unused variable skb in dev_deactivate_queue function.Daniel Lezcano2008-07-211-3/+0
| | | | | | | Removed unused variable 'skb' in the dev_deactivate_queue function Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* sunhme: Remove stop/wake TX queue calls in set-multicast-list handler.David S. Miller2008-07-211-4/+0
| | | | | | | | | | | Based upon a bug report by Alexander Beregalov and commentary from Ben Hutchings. These are totally unnecessary, in particular because this driver's ->hard_start_xmit() handler takes the same driver spinlock that the set-multicast-list handler uses. Signed-off-by: David S. Miller <davem@davemloft.net>
* ucc_geth: do not touch net queue in adjust_link phylib callbackAnton Vorontsov2008-07-211-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If the net queue has not been started, we'll get this nice oops and non-working ethernet: ------------[ cut here ]------------ Kernel BUG at c01f4648 [verbose debug info unavailable] Oops: Exception in kernel mode, sig: 5 [#1] MPC836x RDK Modules linked in: NIP: c01f4648 LR: c01c0a10 CTR: c01c08e4 REGS: cf839e40 TRAP: 0700 Not tainted (2.6.26-05254-gc7b9969) MSR: 00021032 <ME,IR,DR> CR: 22042044 XER: 00000000 TASK = cf828c30[4] 'events/0' THREAD: cf838000 GPR00: c01c0a10 cf839ef0 cf828c30 c035ceb0 cf8469a0 00000064 00000000 00000000 GPR08: c035ceb0 00000001 00000001 cf99c280 22044044 7ca81020 0fffc000 00000000 GPR16: 0fff2544 0fff63c0 00000000 0fff78e0 0ffa5580 00000004 00000000 00000000 GPR24: 02082000 cf9d0000 d1068000 00009032 cf846800 cf846b80 00000001 00000014 NIP [c01f4648] __netif_schedule+0x28/0x8c LR [c01c0a10] adjust_link+0x12c/0x1e4 Call Trace: [cf839ef0] [c0380f50] 0xc0380f50 (unreliable) [cf839f10] [c01c0a10] adjust_link+0x12c/0x1e4 [cf839f40] [c01c2628] phy_state_machine+0x2e0/0x448 [cf839f60] [c00425e8] run_workqueue+0xc8/0x168 [cf839f90] [c0042c6c] worker_thread+0x70/0xd0 [cf839fd0] [c0046954] kthread+0x48/0x84 [cf839ff0] [c0012488] kernel_thread+0x44/0x60 Instruction dump: 7c0803a6 4e800020 3d20c036 9421ffe0 7c0802a6 7c681b78 3929ceb0 7c694a78 7d290034 90010024 bfa10014 5529d97e <0f090000> 39600002 38030024 7d200028 ---[ end trace a57d367843bd2904 ]--- Since the driver is using phylib (which is doing netif_carrier_on/off()), we should simply remove netif_tx_schedule_all() from adjust_link(). Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* gianfar: do not touch net queue in adjust_link phylib callbackAnton Vorontsov2008-07-211-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If the net queue has not been started, we'll get this nice oops and non-working ethernet: PHY: 0:01 - Link is Up - 1000/Full ------------[ cut here ]------------ kernel BUG at net/core/dev.c:1328! Oops: Exception in kernel mode, sig: 5 [#1] MPC837x RDB Modules linked in: NIP: c02544a0 LR: c01a17d0 CTR: c01a16ac REGS: cf837e40 TRAP: 0700 Not tainted (2.6.26-05253-g14b395e) MSR: 00021032 <ME,IR,DR> CR: 22042044 XER: 00000000 TASK = cf819400[5] 'events/0' THREAD: cf836000 GPR00: c01a17d0 cf837ef0 cf819400 c03d8d08 cf8469a0 00000064 00000000 00000000 GPR08: c03d8d08 00000001 00000001 cf899ba0 22044044 00000000 0fffd000 00000000 GPR16: 0fff3028 0fff6cf0 00000000 0fff8390 0ff494a0 00000004 00000000 00000000 GPR24: c0361a00 00001058 cf9f6600 00009032 cf846800 cf846b80 00000001 00000014 NIP [c02544a0] __netif_schedule+0x28/0x8c LR [c01a17d0] adjust_link+0x124/0x1cc Call Trace: [cf837ef0] [c03fb3a0] 0xc03fb3a0 (unreliable) [cf837f10] [c01a17d0] adjust_link+0x124/0x1cc [cf837f40] [c01a8e28] phy_state_machine+0x2e0/0x448 [cf837f60] [c0040254] run_workqueue+0xc8/0x168 [cf837f90] [c00408d8] worker_thread+0x70/0xd0 [cf837fd0] [c0044630] kthread+0x48/0x84 [cf837ff0] [c0012610] kernel_thread+0x44/0x60 Instruction dump: 7c0803a6 4e800020 3d20c03e 9421ffe0 7c0802a6 7c681b78 39298d08 7c694a78 7d290034 90010024 bfa10014 5529d97e <0f090000> 39600002 38030024 7d200028 ---[ end trace 13dfd73ee42d0c30 ]--- Since the driver is using phylib (which is doing netif_carrier_on/off()), we should simply remove netif_tx_schedule_all() from adjust_link(). Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* atl1: Do not wake queue before queue has been started.David S. Miller2008-07-211-2/+1
| | | | | | | | | | | | | | | Based upon a bug report by Alexey Dobriyan, the patch is also tested by him and confirmed to fix the problem. Packet flow during link state events should not be done by waking and stopping the TX queue anyways, that is handled transparently by netif_carrier_{on,off}(). So, remove the netif_{wake,stop}_queue() calls in the link check code, and add the necessary netif_start_queue() call to atl1_up(). Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'for-2.6.27' of git://linux-nfs.org/~bfields/linuxLinus Torvalds2008-07-2036-966/+1042
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-2.6.27' of git://linux-nfs.org/~bfields/linux: (51 commits) nfsd: nfs4xdr.c do-while is not a compound statement nfsd: Use C99 initializers in fs/nfsd/nfs4xdr.c lockd: Pass "struct sockaddr *" to new failover-by-IP function lockd: get host reference in nlmsvc_create_block() instead of callers lockd: minor svclock.c style fixes lockd: eliminate duplicate nlmsvc_lookup_host call from nlmsvc_lock lockd: eliminate duplicate nlmsvc_lookup_host call from nlmsvc_testlock lockd: nlm_release_host() checks for NULL, caller needn't file lock: reorder struct file_lock to save space on 64 bit builds nfsd: take file and mnt write in nfs4_upgrade_open nfsd: document open share bit tracking nfsd: tabulate nfs4 xdr encoding functions nfsd: dprint operation names svcrdma: Change WR context get/put to use the kmem cache svcrdma: Create a kmem cache for the WR contexts svcrdma: Add flush_scheduled_work to module exit function svcrdma: Limit ORD based on client's advertised IRD svcrdma: Remove unused wait q from svcrdma_xprt structure svcrdma: Remove unneeded spin locks from __svc_rdma_free svcrdma: Add dma map count and WARN_ON ...
| * nfsd: nfs4xdr.c do-while is not a compound statementHarvey Harrison2008-07-181-2/+2
| | | | | | | | | | | | | | | | | | The WRITEMEM macro produces sparse warnings of the form: fs/nfsd/nfs4xdr.c:2668:2: warning: do-while statement is not a compound statement Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Cc: Benny Halevy <bhalevy@panasas.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
| * nfsd: Use C99 initializers in fs/nfsd/nfs4xdr.cJ. Bruce Fields2008-07-181-74/+74
| | | | | | | | | | | | | | | | Thanks to problem report and original patch from Harvey Harrison. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Cc: Harvey Harrison <harvey.harrison@gmail.com> Cc: Benny Halevy <bhalevy@panasas.com>
| * lockd: Pass "struct sockaddr *" to new failover-by-IP functionChuck Lever2008-07-153-15/+34
| | | | | | | | | | | | | | | | | | | | | | | | | | Pass a more generic socket address type to nlmsvc_unlock_all_by_ip() to allow for future support of IPv6. Also provide additional sanity checking in failover_unlock_ip() when constructing the server's IP address. As an added bonus, provide clean kerneldoc comments on related NLM interfaces which were recently added. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
| * lockd: get host reference in nlmsvc_create_block() instead of callersJ. Bruce Fields2008-07-151-3/+2
| | | | | | | | | | | | | | | | | | | | | | It may not be obvious (till you look at the definition of nlm_alloc_call()) that a function like nlmsvc_create_block() should consume a reference on success or failure, so I find it clearer if it takes the reference it needs itself. And both callers already do this immediately before the call anyway. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
| * lockd: minor svclock.c style fixesJ. Bruce Fields2008-07-151-5/+5
| | | | | | | | Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
| * lockd: eliminate duplicate nlmsvc_lookup_host call from nlmsvc_lockJeff Layton2008-07-154-11/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | nlmsvc_lock calls nlmsvc_lookup_host to find a nlm_host struct. The callers of this function, however, call nlmsvc_retrieve_args or nlm4svc_retrieve_args, which also return a nlm_host struct. Change nlmsvc_lock to take a host arg instead of calling nlmsvc_lookup_host itself and change the callers to pass a pointer to the nlm_host they've already found. Since nlmsvc_testlock() now just uses the caller's reference, we no longer need to get or release it. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
| * lockd: eliminate duplicate nlmsvc_lookup_host call from nlmsvc_testlockJeff Layton2008-07-154-12/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | nlmsvc_testlock calls nlmsvc_lookup_host to find a nlm_host struct. The callers of this functions, however, call nlmsvc_retrieve_args or nlm4svc_retrieve_args, which also return a nlm_host struct. Change nlmsvc_testlock to take a host arg instead of calling nlmsvc_lookup_host itself and change the callers to pass a pointer to the nlm_host they've already found. We take a reference to host in the place where nlmsvc_testlock() previous did a new lookup, so the reference counting is unchanged from before. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
| * lockd: nlm_release_host() checks for NULL, caller needn'tJeff Layton2008-07-152-4/+2
| | | | | | | | | | | | | | No need to check for a NULL argument twice. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
| * file lock: reorder struct file_lock to save space on 64 bit buildsRichard Kennedy2008-07-131-2/+2
| | | | | | | | | | | | | | | | | | Reduce sizeof struct file_lock by 8 on 64 bit builds allowing +1 objects per slab in the file_lock_cache Signed-off-by: Richard Kennedy <richard@rsk.demon.co.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
| * nfsd: take file and mnt write in nfs4_upgrade_openBenny Halevy2008-07-071-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | testing with newpynfs revealed this warning: Jul 3 07:32:50 buml kernel: writeable file with no mnt_want_write() Jul 3 07:32:50 buml kernel: ------------[ cut here ]------------ Jul 3 07:32:50 buml kernel: WARNING: at /usr0/export/dev/bhalevy/git/linux-pnfs-bh-nfs41/include/linux/fs.h:855 drop_file_write_access+0x6b/0x7e() Jul 3 07:32:50 buml kernel: Modules linked in: nfsd auth_rpcgss exportfs nfs lockd nfs_acl sunrpc Jul 3 07:32:50 buml kernel: Call Trace: Jul 3 07:32:50 buml kernel: 6eaadc88: [<6002f471>] warn_on_slowpath+0x54/0x8e Jul 3 07:32:50 buml kernel: 6eaadcc8: [<601b790d>] printk+0xa0/0x793 Jul 3 07:32:50 buml kernel: 6eaadd38: [<601b6205>] __mutex_lock_slowpath+0x1db/0x1ea Jul 3 07:32:50 buml kernel: 6eaadd68: [<7107d4d5>] nfs4_preprocess_seqid_op+0x2a6/0x31c [nfsd] Jul 3 07:32:50 buml kernel: 6eaadda8: [<60078dc9>] drop_file_write_access+0x6b/0x7e Jul 3 07:32:50 buml kernel: 6eaaddc8: [<710804e4>] nfsd4_open_downgrade+0x114/0x1de [nfsd] Jul 3 07:32:50 buml kernel: 6eaade08: [<71076215>] nfsd4_proc_compound+0x1ba/0x2dc [nfsd] Jul 3 07:32:50 buml kernel: 6eaade48: [<71068221>] nfsd_dispatch+0xe5/0x1c2 [nfsd] Jul 3 07:32:50 buml kernel: 6eaade88: [<71312f81>] svc_process+0x3fd/0x714 [sunrpc] Jul 3 07:32:50 buml kernel: 6eaadea8: [<60039a81>] kernel_sigprocmask+0xf3/0x100 Jul 3 07:32:50 buml kernel: 6eaadee8: [<7106874b>] nfsd+0x182/0x29b [nfsd] Jul 3 07:32:50 buml kernel: 6eaadf48: [<60021cc9>] run_kernel_thread+0x41/0x4a Jul 3 07:32:50 buml kernel: 6eaadf58: [<710685c9>] nfsd+0x0/0x29b [nfsd] Jul 3 07:32:50 buml kernel: 6eaadf98: [<60021cb0>] run_kernel_thread+0x28/0x4a Jul 3 07:32:50 buml kernel: 6eaadfc8: [<60013829>] new_thread_handler+0x72/0x9c Jul 3 07:32:50 buml kernel: Jul 3 07:32:50 buml kernel: ---[ end trace 2426dd7cb2fba3bf ]--- Bruce Fields suggested this (Thanks!): maybe we need to be doing a mnt_want_write on open_upgrade and mnt_put_write on downgrade? This patch adds a call to mnt_want_write and file_take_write (which is doing the actual work). The counter-calls mnt_drop_write a file_release_write are now being properly called by drop_file_write_access in the exact path printed by the warning above. Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
| * nfsd: document open share bit trackingJ. Bruce Fields2008-07-071-0/+18
| | | | | | | | | | | | | | It's not immediately obvious from the code why we're doing this. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Cc: Benny Halevy <bhalevy@panasas.com>
| * nfsd: tabulate nfs4 xdr encoding functionsBenny Halevy2008-07-041-114/+91
| | | | | | | | | | | | | | | | | | | | | | In preparation for minorversion 1 All encoders now return an nfserr status (typically their nfserr argument). Unsupported ops go through nfsd4_encode_operation too, so use nfsd4_encode_noop to encode nothing for their reply body. Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
| * Merge branch 'for-bfields' of git://linux-nfs.org/~tomtucker/xprt-switch-2.6 ↵J. Bruce Fields2008-07-031742-18919/+31340
| |\ | | | | | | | | | into for-2.6.27
| | * svcrdma: Change WR context get/put to use the kmem cacheTom Tucker2008-07-022-115/+12
| | | | | | | | | | | | | | | | | | | | | | | | Change the WR context pool to be shared across mount points. This reduces the RDMA transport memory footprint significantly since idle mounts don't consume WR context memory. Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
| | * svcrdma: Create a kmem cache for the WR contextsTom Tucker2008-07-021-4/+19
| | | | | | | | | | | | | | | | | | | | | Create a kmem cache to hold WR contexts. Next we will convert the WR context get and put services to use this kmem cache. Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
| | * svcrdma: Add flush_scheduled_work to module exit functionTom Tucker2008-07-021-0/+1
| | | | | | | | | | | | | | | | | | | | | Make certain all transports pending free are flushed from the wq before unloading the module. Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
| | * svcrdma: Limit ORD based on client's advertised IRDTom Tucker2008-07-021-4/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When adapters have differing IRD limits, the RDMA transport will fail to connect properly. The RDMA transport should use the client's advertised inbound read limit when computing its outbound read limit. For iWARP transports, there is currently no standard for exchanging IRD/ORD during connection establishment so the 'responder_resources' field in the connect event is the local device's limit. The RDMA transport can be configured to use a smaller ORD by writing the desired number to the /proc/sys/sunrpc/svc_rdma/max_outbound_read_requests file. Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
| | * svcrdma: Remove unused wait q from svcrdma_xprt structureTom Tucker2008-07-021-1/+0
| | | | | | | | | | | | | | | | | | The sc_read_wait queue head is no longer used. Remove it. Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
| | * svcrdma: Remove unneeded spin locks from __svc_rdma_freeTom Tucker2008-07-021-4/+0
| | | | | | | | | | | | | | | | | | | | | | | | At the time __svc_rdma_free is called, we are guaranteed that all references to this transport are gone. There is, therefore, no need to protect the resource lists with a spin lock. Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
| | * svcrdma: Add dma map count and WARN_ONTom Tucker2008-07-024-0/+10
| | | | | | | | | | | | | | | | | | | | | Add a dma map count in order to verify that all DMA mapping resources have been freed when the transport is closed. Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
| | * svcrdma: Move the DMA unmap logic to the CQ handlerTom Tucker2008-07-021-6/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Separate DMA unmap from context destruction and perform DMA unmapping in the SQ/RQ CQ reap functions. This is necessary to support software based RDMA implementations that actually copy the data in their ib_dma_unmap callback functions and architectures that don't have cache coherent I/O busses. Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
| | * svcrdma: Use reply and chunk map for RDMA_READ processingTom Tucker2008-07-022-45/+39
| | | | | | | | | | | | | | | | | | | | | | | | | | | Modify the RDMA_READ processing to use the reply and chunk list mapping data types. Also add a special purpose 'hdr_count' field in in the context to hold the header page count instead of overloading the SGE length field and corrupting the DMA map length. Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
| | * svcrdma: Use RPC reply map for RDMA_WRITE processingTom Tucker2008-07-022-88/+80
| | | | | | | | | | | | | | | | | | | | | | | | Use the new svc_rdma_req_map data type for mapping the client side memory to the server side memory. Move the DMA mapping to the context pointed to by each WR individually so that it is unmapped after the WR completes. Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
| | * svcrdma: Add a type for keeping NFS RPC mappingTom Tucker2008-07-023-0/+72
| | | | | | | | | | | | | | | | | | | | | Create a new data structure to hold the remote client address space to local server address space mapping. Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
| * | nfsd: dprint operation namesBenny Halevy2008-07-021-2/+50
| | | | | | | | | | | | | | | Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
| * | nfsd: nfs4 minorversion decoder vectorsBenny Halevy2008-07-021-3/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | Have separate vectors of operation decoders for each minorversion. Obsolete ops in newer minorversions have default implementation returning nfserr_opnotsupp. Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
| * | nfsd: unsupported nfs4 ops should fail with nfserr_opnotsuppBenny Halevy2008-07-021-0/+9
| | | | | | | | | | | | | | | | | | | | | nfserr_opnotsupp should be returned for unsupported nfs4 ops rather than nfserr_op_illegal. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
| * | nfsd: tabulate nfs4 xdr decoding functionsBenny Halevy2008-07-021-105/+48
| | | | | | | | | | | | | | | | | | | | | In preparation for minorversion 1 Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
| * | nfsd: return nfserr_minor_vers_mismatch when compound minorversion != 0Benny Halevy2008-07-021-7/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Check minorversion once before decoding any operation and reject with nfserr_minor_vers_mismatch if != 0 (this still happens in nfsd4_proc_compound). In this case return a zero length resultdata array as required by RFC3530. minorversion 1 processing will have its own vector of decoders. Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
| * | nfsd: clean up mnt_want_write callsMiklos Szeredi2008-07-011-14/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | Multiple mnt_want_write() calls in the switch statement looks really ugly. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Acked-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
| * | nfsd: treat all shutdown signals as equivalentJeff Layton2008-06-301-25/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | knfsd currently uses 2 signal masks when processing requests. A "loose" mask (SHUTDOWN_SIGS) that it uses when receiving network requests, and then a more "strict" mask (ALLOWED_SIGS, which is just SIGKILL) that it allows when doing the actual operation on the local storage. This is apparently unnecessarily complicated. The underlying filesystem should be able to sanely handle a signal in the middle of an operation. This patch removes the signal mask handling from knfsd altogether. When knfsd is started as a kthread, all signals are ignored. It then allows all of the signals in SHUTDOWN_SIGS. There's no need to set the mask as well. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
| * | nfs: rewrap NFS/RDMA documentation to 80 linesJ. Bruce Fields2008-06-301-19/+21
| | | | | | | | | | | | | | | | | | Wrap long lines. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
| * | update NFS/RDMA documentationJames Lentini2008-06-301-31/+44
| | | | | | | | | | | | | | | | | | | | | Update the NFS/RDMA documentation to clarify how to run mount.nfs. Signed-off-by: James Lentini <jlentini@netapp.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
| * | nfsd: fix spurious EACCESS in reconnect_path()Neil Brown2008-06-301-3/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Thanks to Frank Van Maarseveen for the original problem report: "A privileged process on an NFS client which drops privileges after using them to change the current working directory, will experience incorrect EACCES after an NFS server reboot. This problem can also occur after memory pressure on the server, particularly when the client side is quiet for some time." This occurs because the filehandle points to a directory whose parents are no longer in the dentry cache, and we're attempting to reconnect the directory to its parents without adequate permissions to perform lookups in the parent directories. We can therefore fix the problem by acquiring the necessary capabilities before attempting the reconnection. We do this only in the no_subtree_check case, since the documented behavior of the subtree_check export option requires the server to check that the user has lookup permissions on all parents. The subtree_check case still has a problem, since reconnect_path() unnecessarily requires both read and lookup permissions on all parent directories. However, a fix in that case would be more delicate, and use of subtree_check is already discouraged for other reasons. Signed-off-by: Neil Brown <neilb@suse.de> Cc: Frank van Maarseveen <frankvm@frankvm.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
| * | gss_krb5: Use random value to initialize confounderKevin Coffman2008-06-231-4/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | Initialize the value used for the confounder to a random value rather than starting from zero. Allow for confounders of length 8 or 16 (which will be needed for AES). Signed-off-by: Kevin Coffman <kwc@citi.umich.edu> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
generated by cgit v1.1 at 2025-01-30 22:49:51 +0000