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2012-12-06NFS: Remove _nfs_call_sync_sessionBryan Schumaker
All it does is pass its arguments through to another function. Let's cut out the middleman... Signed-off-by: Bryan Schumaker <bjschuma@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-12-06NFSv4: Clean up handling of privileged operationsTrond Myklebust
Privileged rpc calls are those that are run by the state recovery thread, in cases where we're trying to recover the system after a server reboot or a network partition. In those cases, we want to fence off all other rpc calls (see nfs4_begin_drain_session()) so that they don't end up using stateids or clientids that are in the process of being recovered. Prior to this patch, we had to set up special callback functions in order to declare an rpc call as being privileged. By adding a new field to the sequence arguments, this patch simplifies things considerably, and allows us to declare the rpc call as privileged before it is run. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-12-06NFSv4.1: Remove the 'FIFO' behaviour for nfs41_setup_sequenceTrond Myklebust
It is more important to preserve the task priority behaviour, which ensures that things like reclaim writes take precedence over background and kupdate writes. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-12-06NFSv4.1: Clean up nfs41_setup_sequenceTrond Myklebust
Move all the sleep-and-exit cases into a single section of code. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-12-06NFSv4: Simplify the NFSv4/v4.1 synchronous call switchTrond Myklebust
We shouldn't need to pass the 'cache_reply' parameter if we initialise the sequence_args/sequence_res in the caller. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-12-06NFSv4.1: Simplify the sequence setupTrond Myklebust
Nobody calls nfs4_setup_sequence or nfs41_setup_sequence without also calling rpc_call_start() on success. This commit therefore folds the rpc_call_start call into nfs41_setup_sequence(). Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-12-06NFSv4.1: Use nfs41_setup_sequence where appropriateTrond Myklebust
There is no point in using nfs4_setup_sequence or nfs4_sequence_done in pure NFSv4.1 functions. We already know that those have sessions... Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-12-06NFSv4.1: Ping server when our session table limits are too highTrond Myklebust
If the server requests a lower target_highest_slotid, then ensure that we ping it with at least one RPC call containing an appropriate SEQUENCE op. This ensures that the server won't need to send a recall callback in order to shrink the slot table. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-12-06NFSv4.1: Set the maximum slot table size to 1024 slotsTrond Myklebust
This means that we end up statically allocating 128 bytes for the bitmap on each slot table. For a server that supports 1MB write and read I/O sizes this means that we can completely fill the maximum 1GB TCP send/receive windows. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-12-06NFSv4.1: Move slot table and session struct definitions to nfs4session.hTrond Myklebust
Clean up. Gather NFSv4.1 slot definitions in fs/nfs/nfs4session.h. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-12-06NFS: Remove unused function slot_idxTrond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-12-06NFSv4.1: Cleanup move session slot management to fs/nfs/nfs4session.cTrond Myklebust
NFSv4.1 session management is getting complex enough to deserve a separate file. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-12-06NFSv4: Move nfs4_wait_clnt_recover and nfs4_client_recover_expired_leaseTrond Myklebust
nfs4_wait_clnt_recover and nfs4_client_recover_expired_lease are both generic state related functions. As such, they belong in nfs4state.c, and not nfs4proc.c Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-12-06NFSv4.1: Clean up session drainingTrond Myklebust
Coalesce nfs4_check_drain_bc_complete and nfs4_check_drain_fc_complete into a single function that can be called when the slot table is known to be empty, then change nfs4_callback_free_slot() and nfs4_free_slot() to use it. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-12-06NFSv4.1: If slot allocation fails due to OOM, retry more quicklyTrond Myklebust
If the NFSv4.1 session slot allocation fails due to an ENOMEM condition, then set the task->tk_timeout to 1/4 second to ensure that we do retry the slot allocation more quickly. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-12-06NFSv4.1: CB_RECALL_SLOT must schedule a sequence op after updating targetsTrond Myklebust
RFC5661 requires us to make sure that the server knows we've updated our slot table size by sending at least one SEQUENCE op containing the new 'highest_slotid' value. We can do so using the 'CHECK_LEASE' functionality of the state manager. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-12-06NFSv4.1: Remove the state manager code to resize the slot tableTrond Myklebust
The state manager no longer needs any special machinery to stop the session flow and resize the slot table. It is all done on the fly by the SEQUENCE op code now. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-12-06NFSv4.1: Allow SEQUENCE to resize the slot table on the flyTrond Myklebust
Instead of an array of slots, use a singly linked list of slots that can be dynamically appended to or shrunk. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-12-06NFSv4.1: Support dynamic resizing of the session slot tableTrond Myklebust
Allow the server to control the size of the session slot table by adjusting the value of sr_target_max_slots in the reply to the SEQUENCE operation. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-12-06NFSv4.1: Allow the server to recall all but one slotTrond Myklebust
If the server wants to leave us with only one slot, or it wants to "shrink" our slot table to something larger than we have now, then so be it. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-12-06NFSv4.1: Don't confuse target_highest_slotid and max_slots in cb_recall_slotTrond Myklebust
Don't confuse the table size and the target_highest_slotid... Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-12-06NFSv4.1: Fix nfs4_callback_recallslot to work with dynamic slot allocationTrond Myklebust
Ensure that the NFSv4.1 CB_RECALL_SLOT callback updates the slot table target max slotid safely. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-12-06NFSv4.1: Reset the sequence number for slots that have been deallocatedTrond Myklebust
When the server tells us that it is dynamically resizing the session replay cache, we should reset the sequence number for those slots that have been deallocated. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-12-06NFSv4.1: Ensure that the client tracks the server target_highest_slotidTrond Myklebust
Dynamic slot allocation in NFSv4.1 depends on the client being able to track the server's target value for the highest slotid in the slot table. See the reference in Section 2.10.6.1 of RFC5661. To avoid ordering problems in the case where 2 SEQUENCE replies contain conflicting updates to this target value, we also introduce a generation counter, to track whether or not an RPC containing a SEQUENCE operation was launched before or after the last update. Also rename the nfs4_slot_table target_max_slots field to 'target_highest_slotid' to avoid confusion with a slot table size or number of slots. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-12-05spi/clps711x: New SPI master driverAlexander Shiyan
This patch add new driver for CLPS711X SPI master controller. Due to platform limitations driver supports only 8 bit transfer mode. Chip select control is handled via GPIO. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-12-05cifs: rename cifs_readdir_lookup to cifs_prime_dcache and make it void returnJeff Layton
The caller doesn't do anything with the dentry, so there's no point in holding a reference to it on return. Also cifs_prime_dcache better describes the actual purpose of the function. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <smfrench@gmail.com>
2012-12-05of/vendor-prefixes: add Imagination TechnologiesJames Hogan
The "powervr" prefix which is currently described as "Imagination Technologies" isn't really appropriate for non-PowerVR hardware, so deprecate it, changing the description of "powervr" to "PowerVR (deprecated, use img)", and add a separate "img" prefix for "Imagination Technologies Ltd.". Signed-off-by: James Hogan <james.hogan@imgtec.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-12-05x86: Use PCI setup dataMatthew Garrett
EFI can provide PCI ROMs out of band via boot services, which may not be available after boot. Add support for using the data handed off to us by the boot stub or bootloader. [bhelgaas: added Seth's boot_params section mismatch fix] [bhelgaas: drop "boot_params.hdr.version < 0x0209" test] Signed-off-by: Matthew Garrett <mjg@redhat.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Tested-by: Seth Forshee <seth.forshee@canonical.com>
2012-12-05PCI: Add support for non-BAR ROMsMatthew Garrett
Platforms may provide their own mechanisms for obtaining ROMs. Add support for using data provided by the platform in that case. Signed-off-by: Matthew Garrett <mjg@redhat.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Tested-by: Seth Forshee <seth.forshee@canonical.com>
2012-12-05PCI: Add pcibios_add_deviceMatthew Garrett
Platforms may want to provide architecture-specific functionality during PCI enumeration. Add a pcibios_add_device() call that architectures can override to do so. Signed-off-by: Matthew Garrett <mjg@redhat.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Tested-by: Seth Forshee <seth.forshee@canonical.com>
2012-12-05EFI: Stash ROMs if they're not in the PCI BARMatthew Garrett
EFI provides support for providing PCI ROMs via means other than the ROM BAR. This support vanishes after we've exited boot services, so add support for stashing copies of the ROMs in setup_data if they're not otherwise available. Signed-off-by: Matthew Garrett <mjg@redhat.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Tested-by: Seth Forshee <seth.forshee@canonical.com>
2012-12-05bridge: implement multicast fast leaveDavid S. Miller
V3: make it a flag V2: make the toggle per-port Fast leave allows bridge to immediately stops the multicast traffic on the port receives IGMP Leave when IGMP snooping is enabled, no timeouts are observed. Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Stephen Hemminger <shemminger@vyatta.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Cong Wang <amwang@redhat.com>
2012-12-05target/file: merge fd_do_readv() and fd_do_writev()Sebastian Andrzej Siewior
Those two functions are almost identical so merge them. Noticed this while fixing the highmem in both cases. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2012-12-05target/file: Fix 32-bit highmem breakage for SGL -> iovec mappingSebastian Andrzej Siewior
This patch changes vectored file I/O to use kmap + kunmap when mapping incoming SGL memory -> struct iovec in order to properly support 32-bit highmem configurations. This is because an extra bounce buffer may be required when processing scatterlist pages allocated with GFP_KERNEL. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: stable@vger.kernel.org Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2012-12-05cnic: Fix rare race condition during iSCSI disconnect.Eddie Wai
If the initiator and target try to close the connection at about the same time, there is a race condition in the termination sequence for bnx2x. Fix the problem by waiting for the remote termination to complete before deleting the Connection ID. This will prevent the firmware assert. Update version to 2.5.15. Signed-off-by: Eddie Wai <eddie.wai@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-05cnic: Reset iSCSI EQ during shutdown.Michael Chan
Without the reset, reloading the cnic driver can cause the iSCSI Event Queue to be out of sync with the driver and cause intermittent crash. Signed-off-by: Michael Chan <mchan@broadcom.com> Acked-by: Ariel Elior <ariele@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-05ipv6: avoid taking locks at socket dismantleEric Dumazet
ipv6_sock_mc_close() is called for ipv6 sockets at close time, and most of them don't use multicast. Add a test to avoid contention on a shared spinlock. Same heuristic applies for ipv6_sock_ac_close(), to avoid contention on a shared rwlock. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-05net: doc: add default value for neighbour parametersShan Wei
Signed-off-by: Shan Wei <davidshan@tencent.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-05net: neighbour: prohibit negative value for unres_qlen_bytes parameterShan Wei
unres_qlen_bytes and unres_qlen are int type. But multiple relation(unres_qlen_bytes = unres_qlen * SKB_TRUESIZE(ETH_FRAME_LEN)) will cause type overflow when seting unres_qlen. e.g. $ echo 1027506 > /proc/sys/net/ipv4/neigh/eth1/unres_qlen $ cat /proc/sys/net/ipv4/neigh/eth1/unres_qlen 1182657265 $ cat /proc/sys/net/ipv4/neigh/eth1/unres_qlen_bytes -2147479756 The gutted value is not that we setting。 But user/administrator don't know this is caused by int type overflow. what's more, it is meaningless and even dangerous that unres_qlen_bytes is set with negative number. Because, for unresolved neighbour address, kernel will cache packets without limit in __neigh_event_send()(e.g. (u32)-1 = 2GB). Signed-off-by: Shan Wei <davidshan@tencent.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-05net/phy: Add interrupt support for dp83640 phy.Stephan Gatzka
Added functions for ack_interrupt and config_intr. Tested on an mpc5200b powerpc board. Signed-off-by: Stephan Gatzka <stephan.gatzka@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-05myri10ge: fix most sparse warningsAndrew Gallatin
- convert remaining htonl/ntohl +__raw_read/__raw_writel to swab32 + readl/writel - add missing __iomem qualifier in myri10ge_open() - fix dubious: x & !y warning by switching from logical to bitwise not The swab32 conversion fixes a bug in myri10ge_led() where big-endian machines would write the wrong pattern. The only remaining warning (lock context imbalance) is due to the use of __netif_tx_trylock(), and cannot easily be fixed. Signed-off-by: Andrew Gallatin <gallatin@myri.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-05bridge: implement multicast fast leaveAmerigo Wang
V2: make the toggle per-port Fast leave allows bridge to immediately stops the multicast traffic on the port receives IGMP Leave when IGMP snooping is enabled, no timeouts are observed. Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Stephen Hemminger <shemminger@vyatta.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-05cifs: Add CONFIG_CIFS_DEBUG and rename use of CIFS_DEBUGJoe Perches
This can reduce the size of the module by ~120KB which could be useful for embedded systems. $ size fs/cifs/built-in.o* text data bss dec hex filename 388567 34459 100440 523466 7fcca fs/cifs/built-in.o.new 495970 34599 117904 648473 9e519 fs/cifs/built-in.o.old Signed-off-by: Joe Perches <joe@perches.com> Reviewed-by: Jeff Layton <jlayton@redhat.com>
2012-12-05cifs: Make CIFS_DEBUG possible to undefineJoe Perches
Make the compilation work again when CIFS_DEBUG is not #define'd. Add format and argument verification for the various macros when CIFS_DEBUG is not #define'd. Signed-off-by: Joe Perches <joe@perches.com> Reviewed-by: Jeff Layton <jlayton@redhat.com>
2012-12-05PCI: Add and use standard PCI-X Capability register namesBjorn Helgaas
Add and use #defines for PCI-X Capability registers and fields. Note that the PCI-X Capability has a different layout for type 0 (endpoint) and type 1 (bridge) devices. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2012-12-053com: make 3c59x depend on HAS_IOPORTJan Glauber
The 3com driver for 3c59x requires ioport_map. Since not all architectures support IO port mapping make 3c59x dependent on HAS_IOPORT. Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-06Merge branch 'exynos-drm-next' of ↵Dave Airlie
git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-next This patch set adds iommu support, userptr feature to g2d, minor fixups and code cleanups. And the iommu feature has dependency of the below patches related to dma mapping framework. This patch is used to allocate fully physically contiguous memory region. - add sending AVI and AVI info frames. . this adds some codes for composing AVI and AUI info frames and send them every VSYNC for HDMI Certification. - bug fix to previous pull request. - add some code cleanup * 'exynos-drm-next' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos: (32 commits) drm/exynos: sending AVI and AUI info frames drm/exynos: Use devm_clk_get in exynos_drm_fimd.c drm/exynos: Use devm_* APIs in exynos_hdmi.c drm/exynos: Use devm_clk_get in exynos_mixer.c drm/exynos: Fix potential NULL pointer dereference drm/exynos: Use devm_clk_get in exynos_drm_g2d.c drm/exynos: use sgt instead of pages for framebuffer address drm: exynos: fix for loosing display mode header during mode adjustment drm/exynos: fix memory leak to EDID block drm/exynos: remove 'pages' and 'page_size' elements in exynos gem buffer drm/exynos: add exynos drm specific fb_mmap function drm/exynos: make sure that overlay data are updated drm/exynos: add vm_ops to specific gem mmaper drm/exynos: add userptr feature for g2d module drm/exynos: remove unnecessary sg_alloc_table call drm: exynos: fix for mapping of dma buffers drm/exynos: remove EXYNOS_BO_NONCONTIG type checking. drm/exynos: add iommu support for g2d drm/exynos: add iommu support for hdmi driver drm/exynos: add iommu support to fimd driver ...
2012-12-05SMB3 mounts fail with access denied to some serversSteve French
We were checking incorrectly if signatures were required to be sent, so were always sending signatures after the initial session establishment. For SMB3 mounts (vers=3.0) this was a problem because we were putting SMB2 signatures in SMB3 requests which would cause access denied on mount (the tree connection would fail). This might also be worth considering for stable (for 3.7), as the error message on mount (access denied) is confusing to users and there is no workaround if the server is configured to only support smb3.0. I am ok either way. CC: stable <stable@kernel.org> Signed-off-by: Steve French <smfrench@gmail.com> Reviewed-by: Jeff Layton <jlayton@redhat.com>
2012-12-05cifs: Remove unused cEVENT macroJoe Perches
It uses an undefined KERN_EVENT and is itself unused. Signed-off-by: Joe Perches <joe@perches.com> Reviewed-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com> Signed-off-by: Steve French <smfrench@gmail.com>
2012-12-05cifs: always zero out smb_vol before parsing optionsJeff Layton
Currently, the code relies on the callers to do that and they all do, but this will ensure that it's always done. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <smfrench@gmail.com>
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