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2015-02-16dm crypt: use unbound workqueue for request processingMikulas Patocka
Use unbound workqueue by default so that work is automatically balanced between available CPUs. The original behavior of encrypting using the same cpu that IO was submitted on can still be enabled by setting the optional 'same_cpu_crypt' table argument. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2015-02-16MIPS: mm: Add MIPS R6 instruction encodingsLeonid Yegoshin
MIPS R6 defines new opcodes for ll, sc, cache and pref instructions so we need to take these into consideration in the micro-assembler. Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com> Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
2015-02-16nios2: add kgdb supportLey Foon Tan
Signed-off-by: Ley Foon Tan <lftan@altera.com>
2015-02-16MIPS: mm: uasm: Add signed 9-bit immediate related macrosLeonid Yegoshin
MIPS R6 redefines several instructions and reduces the immediate field to 9-bits so add related macros for the microassembler. Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com> Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
2015-02-16MIPS: Add build support for the MIPS R6 ISALeonid Yegoshin
Add build support for the latest revision (R6) of the MIPS ISA. microMIPS is not yet supported. Link: http://www.linux-mips.org/archives/linux-mips/2015-01/msg00386.html Cc: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com> Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
2015-02-16MIPS: Add MIPS generic QEMU probe supportLeonid Yegoshin
Add a case in cpu_probe_mips for the MIPS generic QEMU processor ID. Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com> Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
2015-02-16MIPS: Add cases for CPU_QEMU_GENERICLeonid Yegoshin
Add a CPU_QEMU_GENERIC case to various switch statements. Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com> Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
2015-02-16MIPS: Add generic QEMU PRid and cpu type identifiersLeonid Yegoshin
Latest versions of QEMU added support for mips32r6-generic and mips64r6-generic cpu types so add related definitions in preparation of MIPS R6 support. This is also used for QEMU R2 generic cpus. Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com> Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
2015-02-16MIPS: HTW: Prevent accidental HTW start due to nested htw_{start, stop}Markos Chandras
activate_mm() and switch_mm() call get_new_mmu_context() which in turn can enable the HTW before the entryhi is changed with the new ASID. Since the latter will enable the HTW in local_flush_tlb_all(), then there is a small timing window where the HTW is running with the new ASID but with an old pgd since the TLBMISS_HANDLER_SETUP_PGD hasn't assigned a new one yet. In order to prevent that, we introduce a simple htw counter to avoid starting HTW accidentally due to nested htw_{start,stop}() sequences. Moreover, since various IPI calls can enforce TLB flushing operations on a different core, such an operation may interrupt another htw_{stop,start} in progress leading inconsistent updates of the htw_seq variable. In order to avoid that, we disable the interrupts whenever we update that variable. Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Cc: <stable@vger.kernel.org> # 3.17+ Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/9118/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-02-16MIPS: Makefile: Move the ASEs checks after setting the core's CFLAGSMarkos Chandras
We need to check the ASEs support against the core's CFLAGS instead of depending to the default -march option from the toolchain. Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Cc: Maciej W. Rozycki <macro@linux-mips.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/9180/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-02-16MIPS: asm: pgtable: Prevent HTW race when updating PTEsMarkos Chandras
Whenever we modify a page table entry, we need to ensure that the HTW will not fetch a stable entry. And for that to happen we need to ensure that HTW is stopped before we modify the said entry otherwise the HTW may already be in the process of reading that entry and fetching the old information. As a result of which, we replace the htw_reset() calls with htw_{stop,start} in more appropriate places. This also removes the remaining users of htw_reset() and as a result we drop that macro Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Cc: <stable@vger.kernel.org> # 3.17+ Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/9116/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-02-16MIPS: asm: pgtable: Add c0 hazards on HTW start/stop sequencesMarkos Chandras
When we use htw_{start,stop}() outside of htw_reset(), we need to ensure that c0 changes have been propagated properly before we attempt to continue with subsequence memory operations. Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Cc: <stable@vger.kernel.org> # 3.17+ Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/9114/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-02-16MIPS: mm: Add debug information for userland SIGSEGV signals.Markos Chandras
Commit 41c594ab65fc ("[MIPS] MT: Improved multithreading support.") removed useful debug information for userland segmentation faults. This patch bring this back along with the ability to determine the name of the object file where the EPC and RA registers point at. Furthermore, we select the SYSCTL_EXCEPTION_TRACE symbol for MIPS which is the de facto solution to turn userland exception logging on and off via the /proc/sys/debug/exception-trace file. Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Cc: James Hogan <james.hogan@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/9089/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-02-16dmaengine: pl330: add DMA_PAUSE featureRobert Baldyga
DMA_PAUSE command is used for halting DMA transfer on chosen channel. It can be useful when we want to safely read residue before terminating all requests on channel. Otherwise there can be situation when some data is transferred before channel termination but after reading residue, which obviously results with data loss. To avoid this situation we can pause channel, read residue and then terminate all requests. This scenario is common, for example, in serial port drivers. Signed-off-by: Robert Baldyga <r.baldyga@samsung.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-02-16dmaengine: pl330: improve pl330_tx_status() functionRobert Baldyga
This patch adds possibility to read residue of DMA transfer. It's useful when we want to know how many bytes have been transferred before we terminate channel. It can take place, for example, on timeout interrupt. Signed-off-by: Lukasz Czerwinski <l.czerwinski@samsung.com> Signed-off-by: Robert Baldyga <r.baldyga@samsung.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-02-16dmaengine: rcar-dmac: Disable channel 0 when using IOMMULaurent Pinchart
A still unconfirmed hardware bug prevents the IPMMU microTLB 0 to be flushed correctly, resulting in memory corruption. DMAC 0 channel 0 is connected to microTLB 0 on currently supported platforms, so we can't use it with the IPMMU. As the IOMMU API operates at the device level we can't disable it selectively, so ignore channel 0 for now if the device is part of an IOMMU group. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-02-16dmaengine: rcar-dmac: Work around descriptor mode IOMMU errataLaurent Pinchart
When descriptor memory is accessed through an IOMMU the DMADAR register isn't initialized automatically from the first descriptor at beginning of transfer by the DMAC like it should. Initialize it manually with the destination address of the first chunk. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-02-16dmaengine: rcar-dmac: Allocate hardware descriptors with DMAC deviceLaurent Pinchart
When wired to an IOMMU to access data, the DMAC accesses the hardware descriptors through the IOMMU as well. We're using the DMA mapping API to allocate the descriptors, but with a NULL device at the moment, which prevents IOMMU mappings from being created. Fix this by passing the DMAC device instead. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-02-16dmaengine: rcar-dmac: Fix oops due to unintialized list in error ISRLaurent Pinchart
The error interrupt handler stops and reinitializes all channels. This causes a crash for channels that have never been used, as their descriptor lists are uninitialized. Fix it by initializing the descriptor lists at probe time. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-02-16dmaengine: rcar-dmac: Fix spinlock issues in interruptLaurent Pinchart
The rcar_dmac_desc_put() function is called in interrupt context and must thus use spin_lock_irqsave() instead of spin_lock_irq(). Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-02-16dmaenegine: edma: fix sparse warningsLad, Prabhakar
this patch fixes following sparse warnings: edma.c:537:32: warning: symbol 'edma_prep_dma_memcpy' was not declared. Should it be static? edma.c:1070:6: warning: symbol 'edma_filter_fn' was not declared. Should it be static? Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-02-16Merge branch 'drm-next-3.20' of git://people.freedesktop.org/~agd5f/linux ↵Dave Airlie
into drm-next two important bug fixes for radeon * 'drm-next-3.20' of git://people.freedesktop.org/~agd5f/linux: drm/radeon: fix voltage setup on hawaii drm/radeon/dp: Set EDP_CONFIGURATION_SET for bridge chips if necessary
2015-02-16md/raid10: round up to bdev_logical_block_size in narrow_write_error.NeilBrown
RAID10 version of earlier fix for RAID1. We must never initiate IO with sizes less that logical_block_size. Signed-off-by: NeilBrown <neilb@suse.de>
2015-02-16md/raid1: round up to bdev_logical_block_size in narrow_write_errorNate Dailey
This modifies raid1's narrow_write_error to round up block_sectors to the device's logical block size. This prevents sd complaining about "Bad block number requested" for non-512-byte sector disks. Signed-off-by: Nate Dailey <nate.dailey@stratus.com> Signed-off-by: NeilBrown <neilb@suse.de>
2015-02-16MAINTAINERS: update arch/nios2 git treeLey Foon Tan
Signed-off-by: Ley Foon Tan <lftan@altera.com>
2015-02-16Merge branch 'smack-for-3.20-rebased' of ↵James Morris
git://git.gitorious.org/smack-next/kernel into for-linus
2015-02-16Don't leak a key reference if request_key() tries to use a revoked keyringDavid Jeffery
If a request_key() call to allocate and fill out a key attempts to insert the key structure into a revoked keyring, the key will leak, using memory and part of the user's key quota until the system reboots. This is from a failure of construct_alloc_key() to decrement the key's reference count after the attempt to insert into the requested keyring is rejected. key_put() needs to be called in the link_prealloc_failed callpath to ensure the unused key is released. Signed-off-by: David Jeffery <djeffery@redhat.com> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: James Morris <james.l.morris@oracle.com>
2015-02-16Merge https://github.com/PeterHuewe/linux-tpmdd into for-linusJames Morris
2015-02-15Merge tag 'cris-for-3.20' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jesper/cris Pull CRIS changes from Jesper Nilsson. * tag 'cris-for-3.20' of git://git.kernel.org/pub/scm/linux/kernel/git/jesper/cris: CRIS: Whitespace cleanup CRIS: macro whitespace fixes in uaccess.h CRIS: uaccess: fix sparse errors CRISv32: Remove unnecessary KERN_INFO from sync_serial CRIS: Fix missing NR_CPUS in menuconfig CRISv32: Avoid warning of unused variable CRIS: Avoid warning in cris mm/fault.c CRIS: Export csum_partial_copy_nocheck
2015-02-16xfs: recall pNFS layouts on conflicting accessChristoph Hellwig
Recall all outstanding pNFS layouts and truncates, writes and similar extent list modifying operations. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
2015-02-16xfs: implement pNFS export operationsChristoph Hellwig
Add operations to export pNFS block layouts from an XFS filesystem. See the previous commit adding the operations for an explanation of them. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
2015-02-15Input: psmouse - use IS_ENABLED instead of homegrown codeDmitry Torokhov
Instead of having various protocols provide <protocol>_supported() functions, let's use IS_ENABLED() macro that works well in "if" statements. Acked-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-02-15Merge branch 'bfin_rotary' into nextDmitry Torokhov
Merge bfin_rotary driver changes from Sonic Zhang.
2015-02-15Input: bfin_rotary - introduce open and close methodsDmitry Torokhov
Introduce open and close methods for the input device to postpone enabling the device until it is needed. Acked-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-02-15Input: bfin_rotary - convert to use managed resourcesSonic Zhang
Use of managed resources simplifies error handling. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-02-15Input: bfin_rotary - use generic IO functionsSonic Zhang
Instead of using arch-specific accessors remap rotary register physical address into kernel space in probe and use standard readw and writew to access rotary MMRs. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-02-15Input: bfin_rotary - move pin lists into into platform dataSonic Zhang
Newer Blackfin boards use pinctrl API to manage pins and the legacy peripherial lists are not useful on them. Let's move pin lists into platform data so older boards can still use them and newer boards can use the modern API. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-02-15Input: bfin_rotary - move platform header to linux/platform_dataSonic Zhang
The platform data definition of the rotary driver should be generic for all architectures. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-02-15Input: bfin_rotary - mark suspend and resume code as __maybe_unusedDmitry Torokhov
Instead of using #ifdef to guard potentially unused suspend and resume code let's mark them as __maybe_unused so they still get discarded if they are not used but we do not get warning. This allows for better compile coverage. Acked-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-02-15Input: bfin_rotary - fix potential oops in interrupt handlerDmitry Torokhov
The interrupt handler in the driver tries to fetch driver data from platform device, unfortunately it is only set up after interrupt handler is registered. Since interrupt handler does not really need to access the platform device itself let's change it to get the driver data instance instead. Acked-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-02-15Input: ALPS - move v7 packet info to Documentation and v6 packet infoPali Rohár
This patch move all packet info from driver source code to documentation and adds info about v6 packet format (from driver source code). Signed-off-by: Pali Rohár <pali.rohar@gmail.com> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-02-15Input: ALPS - fix confusing comment in protocol dataDmitry Torokhov
The comment about suspicions entry 0x20, 0x02, 0x0e has over time drifted away and it become hard to figure out what it meant. Let's move it back so it is clear. Reported-by: Pali Rohár <pali.rohar@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-02-15Input: ALPS - do not mix trackstick and external PS/2 mouse dataPali Rohár
Previously dev2 device was used for both external PS/2 mouse and internal trackstick device (if available). This change introduces dev3 device which is used for external PS/2 mouse data and dev2 is now used only for trackstick. In case that trackstick is not present dev2 is not created, so userspace does not see non existent device in system. Because laptops with ALPS devices often do not use i8042 active multiplexing all data (from touchpad, trackstick and external PS/2 mouse) come to one port. So it is not possible to know if external PS/2 mouse is connected or not. In most cases external PS/2 mouse is not connected so driver will create dev3 input device after first bare PS/2 packet will be received. So there will not be "ghost" input device. This change also helps in identifying possible problems in future if driver decides to report 6-bytes trackstick packets as 3-bytes bare PS/2 (data will be reported to dev3 instead dev2). Signed-off-by: Pali Rohár <pali.rohar@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-02-15Input: ALPS - fix trackstick detection on some Dell LatitudesDmitry Torokhov
On some Dell Latitudes we fail to identify presence of trackstick unless we reset the device. The issue is quite benign as we do perform reset in alps_init(), so the trackstick ends up working, but mouse name reported to userspace is not accurate. In order to fix the issue while avoiding the additional lengthy reset we move the resrt to alps_detect() and keep the discovered state to be used later in alps_init(). Reported-by: Pali Rohár <pali.rohar@gmail.com> Tested-by: Pali Rohár <pali.rohar@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-02-15Input: ALPS - consolidate setting protocol parametersDmitry Torokhov
Move setting of all protocol properties into alps_set_protocol (former alps_set_defaults) instead of having it split between several functions. Tested-by: Pali Rohár <pali.rohar@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-02-15Input: ALPS - split protocol data from model infoDmitry Torokhov
In preparation of reworking the way we set protocol parameters let's split certain protocol items from alps_model_info into a separate structure. Tested-by: Pali Rohár <pali.rohar@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-02-15Input: ALPS - make Rushmore a separate protocolDmitry Torokhov
Even though Rushmore is very close to V3 protocol it is sufficiently different to warrant it's own protocol name. Tested-by: Pali Rohár <pali.rohar@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-02-15Input: ALPS - renumber protocol numbersDmitry Torokhov
In order to accommodate new protocol number for Rushmore touchpads let's shift protocol numbers by 8 bits (i.e. 1 -> 0x100) - this way we keep protocol version reported in input device id the same as it was, but add some holes in numbering. Tested-by: Pali Rohár <pali.rohar@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-02-15Merge tag 'tty-3.20-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull tty/serial driver patches from Greg KH: "Here's the big tty/serial driver update for 3.20-rc1. Nothing huge here, just lots of driver updates and some core tty layer fixes as well. All have been in linux-next with no reported issues" * tag 'tty-3.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (119 commits) serial: 8250: Fix UART_BUG_TXEN workaround serial: driver for ETRAX FS UART tty: remove unused variable sprop serial: of-serial: fetch line number from DT serial: samsung: earlycon support depends on CONFIG_SERIAL_SAMSUNG_CONSOLE tty/serial: serial8250_set_divisor() can be static tty/serial: Add Spreadtrum sc9836-uart driver support Documentation: DT: Add bindings for Spreadtrum SoC Platform serial: samsung: remove redundant interrupt enabling tty: Remove external interface for tty_set_termios() serial: omap: Fix RTS handling serial: 8250_omap: Use UPSTAT_AUTORTS for RTS handling serial: core: Rework hw-assisted flow control support tty/serial: 8250_early: Add support for PXA UARTs tty/serial: of_serial: add support for PXA/MMP uarts tty/serial: of_serial: add DT alias ID handling serial: 8250: Prevent concurrent updates to shadow registers serial: 8250: Use canary to restart console after suspend serial: 8250: Refactor XR17V35X divisor calculation serial: 8250: Refactor divisor programming ...
2015-02-15Merge tag 'staging-3.20-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging drivers patches from Greg KH: "Here's the big staging driver tree update for 3.20-rc1. Lots of little things in here, adding up to lots of overall cleanups. The IIO driver updates are also in here as they cross the staging tree boundry a lot. I2O has moved into staging as well, as a plan to drop it from the tree eventually as that's a dead subsystem. All of this has been in linux-next with no reported issues for a while" * tag 'staging-3.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (740 commits) staging: lustre: lustre: libcfs: define symbols as static staging: rtl8712: Do coding style cleanup staging: lustre: make obd_updatemax_lock static staging: rtl8188eu: core: switch with redundant cases staging: rtl8188eu: odm: conditional setting with no effect staging: rtl8188eu: odm: condition with no effect staging: ft1000: fix braces warning staging: sm7xxfb: fix remaining CamelCase staging: sm7xxfb: fix CamelCase staging: rtl8723au: multiple condition with no effect - if identical to else staging: sm7xxfb: make smtc_scr_info static staging/lustre/mdc: Initialize req in mdc_enqueue for !it case staging/lustre/clio: Do not allow group locks with gid 0 staging/lustre/llite: don't add to page cache upon failure staging/lustre/llite: Add exception entry check after radix_tree staging/lustre/libcfs: protect kkuc_groups from write access staging/lustre/fld: refer to MDT0 for fld lookup in some cases staging/lustre/llite: Solve a race to access lli_has_smd in read case staging/lustre/ptlrpc: hold rq_lock when modify rq_flags staging/lustre/lnet: portal spreading rotor should be unsigned ...
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