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2012-09-28smsc95xx: remove unnecessary variablesSteve Glendinning
Removes unnecessary variables as smsc95xx_write_reg takes its value by parameter. Early versions passed this parameter by reference. Also replace hardcoded interrupt status value with a #define Signed-off-by: Steve Glendinning <steve.glendinning@shawell.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-28smsc95xx: sleep before read for lengthy operationsSteve Glendinning
During init, the device reset is unexpected to complete immediately, so sleep before testing the condition rather than after it. Signed-off-by: Steve Glendinning <steve.glendinning@shawell.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-29mfd: tps65910: Add alarm interrupt of TPS65910 RTC to mfd device listVenu Byravarasu
Add RTC alarm interrupt details to TPS65910 MFD device list, to support RTC alarm events. Signed-off-by: Venu Byravarasu <vbyravarasu@nvidia.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-09-28Merge branch 'arnds-jiffies-fix' into fortglx/3.7/timeJohn Stultz
Sort out conflict with Arnd's patch that preserves the unconditional LATCH value. Signed-off-by: John Stultz <john.stultz@linaro.org>
2012-09-28time/jiffies: bring back unconditional LATCH definitionArnd Bergmann
Patch a7ea3bbf5d "time/jiffies: Allow CLOCK_TICK_RATE to be undefined" breaks the compilation of targets that rely on the LATCH definition, because of recursive header file inclusion not defining CLOCK_TICK_RATE before it is checked here. This fixes the problem by moving LATCH back to where it was, but it seems that there are still cases where SHIFTED_HZ is defined incorrectly because of the same problem. Need to investigate further. Without this patch, building h7201_defconfig results in: arch/arm/mach-h720x/common.c: In function 'h720x_gettimeoffset': arch/arm/mach-h720x/common.c:50:73: error: 'LATCH' undeclared (first use in this function) arch/arm/mach-h720x/common.c:50:73: note: each undeclared identifier is reported only once for each function it appears in arch/arm/mach-h720x/common.c:51:1: warning: control reaches end of non-void function [-Wreturn-type] Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Richard Cochran <richardcochran@gmail.com> Cc: Prarit Bhargava <prarit@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: John Stultz <john.stultz@linaro.org> Cc: Ingo Molnar <mingo@kernel.org> Signed-off-by: John Stultz <john.stultz@linaro.org>
2012-09-28mfd: wm5110: Add register patches for revision BMark Brown
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-09-28mfd: wm5110: Disable control interface error report for WM5110 rev BMark Brown
It can misreport. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-09-28cifs: obtain file access during backup intent lookup (resend)Shirish Pargaonkar
Rebased and resending the patch. Path based queries can fail for lack of access, especially during lookup during open. open itself would actually succeed becasue of back up intent bit but queries (either path or file handle based) do not have a means to specifiy backup intent bit. So query the file info during lookup using trans2 / findfirst / file_id_full_dir_info to obtain file info as well as file_id/inode value. Signed-off-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com> Acked-by: Jeff Layton <jlayton@samba.org> Signed-off-by: Steve French <smfrench@gmail.com>
2012-09-28ARM: mvebu: fix build breaks from multi-platform conversionRob Herring
Moving ARCH_MVEBU for multi-platform support caused several breakages in recently added addr-map and pinctrl support for mvebu. This adds the necessary selects and include paths to fix the build. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Cc: Gregory CLEMENT <gregory.clement@free-electrons.com> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-09-28ARM: nomadik: remove NAND_NO_READRDY useArnd Bergmann
The nhk8815 board files uses NAND_NO_READRDY in its platform data, but this macro is getting removed because it was not being used anywhere. Without this patch, building nhk8815_defconfig results in: arch/arm/mach-nomadik/board-nhk8815.c:118:6: error: 'NAND_NO_READRDY' undeclared here (not in a function) Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Alessandro Rubini <rubini@unipv.it> Cc: Linus Walleij <linus.walleij@linaro.org>
2012-09-28ARM: 7541/1: Add ARM ERRATA 775420 workaroundSimon Horman
arm: Add ARM ERRATA 775420 workaround Workaround for the 775420 Cortex-A9 (r2p2, r2p6,r2p8,r2p10,r3p0) erratum. In case a date cache maintenance operation aborts with MMU exception, it might cause the processor to deadlock. This workaround puts DSB before executing ISB if an abort may occur on cache maintenance. Based on work by Kouei Abe and feedback from Catalin Marinas. Signed-off-by: Kouei Abe <kouei.abe.cp@rms.renesas.com> [ horms@verge.net.au: Changed to implementation suggested by catalin.marinas@arm.com ] Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Simon Horman <horms@verge.net.au> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-09-28ARM: 7542/1: mm: fix cache LoUIS API for xscale and feroceonLorenzo Pieralisi
Some architectures like xscale and feroceon have cache API variants that map cache flushing functions as aliases to the base architecture. This patch adds the required aliases to complete the implementation of cache flushing LoUIS API. Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-09-28sparc64: Fix trailing whitespace in NG4 memcpy.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-28Merge branch 'cleanup/__iomem' into next/cleanup2Arnd Bergmann
* cleanup/__iomem: ARM: Orion5x: ts78xx: Add IOMEM for virtual addresses. ARM: ux500: use __iomem pointers for MMIO Two new cleanup patches that were not already part of the first cleanup branch. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-09-28ARM: Orion5x: ts78xx: Add IOMEM for virtual addresses.Andrew Lunn
Also convert logical or to + for register offsets from base addresses. This fixes a number of warnings currently seen in linux-next: warning: passing argument 2 of '__raw_writeb' makes pointer from interger without cast. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-09-28ARM: ux500: use __iomem pointers for MMIOArnd Bergmann
In the earlier sweeping changes, the ux500 uncompress.h file was missed because other problems were hiding this one. Without this patch, building u8500_defconfig results in: In file included from arch/arm/boot/compressed/misc.c:33:0: arch/arm/mach-ux500/include/mach/uncompress.h: In function 'putc': arch/arm/mach-ux500/include/mach/uncompress.h:32:2: warning: passing argument 1 of '__raw_readb' makes pointer from integer without a cast [enabled by default] arch/arm/include/asm/io.h:95:89: note: expected 'const volatile void *' but argument is of type 'u32' Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Linus Walleij <linus.walleij@linaro.org>
2012-09-28NFSv4.1: nfs4_proc_layoutreturn must always drop the plh_block_lgets countTrond Myklebust
Currently it does not do so if the RPC call failed to start. Fix is to move the decrement of plh_block_lgets into nfs4_layoutreturn_release. Also remove a redundant test of task->tk_status in nfs4_layoutreturn_done: if lrp->res.lrs_present is set, then obviously the RPC call succeeded. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-09-28NFSv4.1: _pnfs_return_layout() shouldn't invalidate the layout on failureTrond Myklebust
Failure of the layoutreturn allocation fails is not a good reason to mark the pnfs_layout_hdr as having failed a layoutget or i/o. Just exit cleanly. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-09-28NFSv4.1: Remove the NFS_LAYOUT_RETURNED stateTrond Myklebust
It serves no purpose that the test for whether or not we have valid layout segments doesn't already serve. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-09-28NFSv4.1: Clear NFS_LAYOUT_BULK_RECALL when the layout segments are freedTrond Myklebust
Once all the affected layout segments have been freed up, clear the NFS_LAYOUT_BULK_RECALL flag so that we can reuse the pnfs_layout_hdr Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-09-28NFSv4.1: Get rid of the NFS_LAYOUT_DESTROYED stateTrond Myklebust
We already have a mechanism for blocking LAYOUTGET by means of the plh_block_lgets counter. The only "service" that NFS_LAYOUT_DESTROYED provides at this point is to block layoutget once the layout segment list is empty, which basically means that you have to wait until the pnfs_layout_hdr is destroyed before you can do pNFS on that file again. This patch enables the reuse of the pnfs_layout_hdr if the layout segment list is empty. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-09-28NFSv4.1: Remove unused 'default allocation' for pnfs_alloc_layout_hdr()Trond Myklebust
...and ditto for pnfs_free_layout_hdr() Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-09-28NFSv4.1: Get rid of pNFS spin lock debugging asserts...Trond Myklebust
These are all in static declared functions that are called only once. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-09-28NFSv4.1: Balance pnfs_layout_hdr refcount in pnfs_layout_(insert|remove)_lsegTrond Myklebust
Ensure that the reference count for pnfs_layout_hdr reverts to the original value after a call to pnfs_layout_remove_lseg(). Note that the caller is expected to hold a reference to the struct pnfs_layout_hdr. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-09-28NFSv4.1: Clean up pnfs_put_lseg()Trond Myklebust
There is no longer a need to use pnfs_free_lseg_list(). Just call pnfs_free_lseg() directly. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-09-28NFSv4.1: Clean up the removal of pnfs_layout_hdr from the server listTrond Myklebust
Move the code into pnfs_free_layout_hdr(), and add checks to get_layout_by_fh_locked to ensure that they don't reference a layout that is being freed. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-09-28NFSv4.1: Free the pnfs_layout_hdr outside the inode->i_lockTrond Myklebust
None of the existing pNFS layout drivers seem to require the inode to be locked while they free the layout header. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-09-28NFSv4.1: Remove redundant reference to the pnfs_layout_hdrTrond Myklebust
Each layout segment already holds a reference to the pnfs_layout_hdr, so there is no need to hold an extra reference that is released once the last layout segment is freed. Ensure that pnfs_find_alloc_layout() always returns a reference to the pnfs_layout_hdr, which will be matched by the final call to pnfs_put_layout_hdr() in pnfs_update_layout(). Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-09-28NFSv4.1: Rename the pnfs_put_lseg_common to pnfs_layout_remove_lsegTrond Myklebust
The latter name is more descriptive of the actual function. Also rename pnfs_insert_layout to pnfs_layout_insert_lseg. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-09-28NFSv4.1: reset the inode MDS threshold counters on layout destructionTrond Myklebust
Instead of resetting the inode MDS threshold counters when we mark the layout for destruction, do it as part of freeing the layout. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-09-28NFSv4.1: Get rid of pNFS layout state "NFS_LAYOUT_INVALID"Trond Myklebust
In all cases where we set NFS_LAYOUT_INVALID, we also set NFS_LAYOUT_DESTROYED. Furthermore, in all cases where we test for NFS_LAYOUT_INVALID, we should also be testing for NFS_LAYOUT_DESTROYED, since the latter means that we hold no valid layout segments. Ergo the two are redundant. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-09-28NFSv4.1: Simplify the pNFS return-on-close codeTrond Myklebust
Confine it to the nfs4_do_close() code. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-09-28NFSv4.1: Fix a race in the pNFS return-on-close codeTrond Myklebust
If we sleep after dropping the inode->i_lock, then we are no longer atomic with respect to the rpc_wake_up() call in pnfs_layout_remove_lseg(). Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-09-28NFSv4.1: pnfs_layout_io_set_failed must clear invalid lsegsTrond Myklebust
If pnfs_layout_io_test_failed() authorises a retry of the failed layoutgets, we should clear the existing layout segments so that we start afresh. Do this in pnfs_layout_io_set_failed(). Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-09-28NFSv4.1: Don't drop the pnfs_layout_hdr after a layoutget failureTrond Myklebust
We want to cache the pnfs_layout_hdr after a layoutget or i/o failure so that pnfs_update_layout() can find it and know when it is time to retry. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-09-28NFSv4.1: Fix a reference leak in pnfs_update_layoutTrond Myklebust
If we exit after the call to pnfs_find_alloc_layout(), we have to ensure that we put the struct pnfs_layout_hdr. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-09-28NFSv4.1: pNFS data servers may be temporarily offlineTrond Myklebust
In cases where the pNFS data server is just temporarily out of service, we want to mark it as such, and then try again later. Typically that will be in cases of network connection errors etc. This patch allows us to mark the devices as being "unavailable" for such transient errors, and will make them available for retries after a 2 minute timeout period. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-09-28NFSv4.1: Retry pNFS after a 2 minute timeoutTrond Myklebust
If we had to fall back to read/write through MDS, then assume that we should retry pNFS after a suitable timeout period. The following patch sets a timeout of 2 minutes. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-09-28NFSv4.1: Add helpers for setting/reading the I/O fail bitTrond Myklebust
...and make them local to the pnfs.c file. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-09-28NFSv4.1: Replace dprintk() in pnfs_update_layout with something less buggyTrond Myklebust
Dereferencing nfsi->layout in order to read plh_flags without holding a spin lock is bug prone. Furthermore, the dprintk() tells you nothing about whether or not the call succeeded. Replace it with something that tells you about whether or not a valid layout segment was returned for the inode in question. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-09-28NFSv4.1: Replace get_device_info() with filelayout_get_device_info()Trond Myklebust
Fix the namespace pollution issue. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-09-28NFSv4.1: Cleanup; add "pnfs_" prefix to put_lseg() and get_lseg()Trond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-09-28NFSv4.1: Cleanup; add "pnfs_" prefix to get_layout_hdr() and put_layout_hdr()Trond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-09-28NFSv4.1: Cleanup add a "pnfs_" prefix to mark_matching_lsegs_invalidTrond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-09-28NFS: Clean up the pNFS layoutget interfaceTrond Myklebust
Ensure that we do return errors from nfs4_proc_layoutget() and that we don't mark the layout as having failed if the error was due to a signal or resource problem on the client side. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-09-28SUNRPC: Get rid of the redundant xprt->shutdown bit fieldTrond Myklebust
It is only set after everyone has dereferenced the transport, and serves no useful purpose: setting it is racy, so all the socket code, etc still needs to be able to cope with the cases where they miss reading it. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-09-28NFS: Write the entire file if a server reboot occurs during fsync()Trond Myklebust
This is to ensure that we don't clear the NFS_CONTEXT_RESEND_WRITES flag while there are still writes that haven't been resent. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-09-28NFS: Fix fdatasync/fsync() when confronted with a server rebootTrond Myklebust
If the server reboots before it can commit the unstable writes to disk, then nfs_commit_release_pages() will detect this when it compares the verifier returned by COMMIT to the one returned by WRITE. When this happens, the client needs to resend those writes in order to guarantee that they make it to stable storage. This patch adds a signalling mechanism to notify fsync() that it needs to retry all writes before it can exit. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-09-28NFSv4: Convert the nfs4_lock_state->ls_flags to a bit fieldTrond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-09-28NFS: Clean up helper function nfs4_select_rw_stateid()Trond Myklebust
We want to be able to pass on the information that the page was not dirtied under a lock. Instead of adding a flag parameter, do this by passing a pointer to a 'struct nfs_lock_owner' that may be NULL. Also reuse this structure in struct nfs_lock_context to carry the fl_owner_t and pid_t. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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