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2015-05-04Merge tag 'mac80211-for-davem-2015-05-04' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211 Johannes Berg says: ==================== We have only a few fixes right now: * a fix for an issue with hash collision handling in the rhashtable conversion * a merge issue - rhashtable removed default shrinking just before mac80211 was converted, so enable it now * remove an invalid WARN that can trigger with legitimate userspace behaviour * add a struct member missing from kernel-doc that caused a lot of warnings ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-04bnx2x: Fix to prevent inner-reloadYuval Mintz
Submit 909d9faae2a44 ("bnx2x: Prevent inner-reload while VFs exist") contained a bug - MTU change was not prevented by it; Instead, it `randomally' prevented bnx2x_resume() from running [harmless yet wrong]. This moves the check to its correct spot. Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-04Merge branch 'for-upstream' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next Johan Hedberg says: ==================== pull request: bluetooth-next 2015-05-04 Here's the first bluetooth-next pull request for 4.2: - Various fixes for at86rf230 driver - ieee802154: trace events support for rdev->ops - HCI UART driver refactoring - New Realtek IDs added to btusb driver - Off-by-one fix for rtl8723b in btusb driver - Refactoring of btbcm driver for both UART & USB use Please let me know if there are any issues pulling. Thanks. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-04net/rds: Fix new sparse warningDavid Ahern
c0adf54a109 introduced new sparse warnings: CHECK /home/dahern/kernels/linux.git/net/rds/ib_cm.c net/rds/ib_cm.c:191:34: warning: incorrect type in initializer (different base types) net/rds/ib_cm.c:191:34: expected unsigned long long [unsigned] [usertype] dp_ack_seq net/rds/ib_cm.c:191:34: got restricted __be64 <noident> net/rds/ib_cm.c:194:51: warning: cast to restricted __be64 The temporary variable for sequence number should have been declared as __be64 rather than u64. Make it so. Signed-off-by: David Ahern <david.ahern@oracle.com> Cc: shamir rabinovitch <shamir.rabinovitch@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-04Revert "Revert "smc91x: retrieve IRQ and trigger flags in a modern way""David S. Miller
This reverts commit 8d7d9cca4390062ccd09ffd9fdb37d1c4eeea9ac. Now that the necessary infrastructure is really all there in the tree, we can put this change back in. Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-04net/smsc911x: fix irq resource allocation failureKamlakant Patel
When smsc911x uses GPIO as the interrupt controller, and if both are loaded as modules, we get following error: "smsc911x: Could not allocate irq resource" This issue is because of smsc911x using platform_get_resource to get device tree based irq resource. commit "9ec36ca (of/irq: do irq resolution in platform_get_irq)" and commit "7085a7 (drivers: platform: parse IRQ flags from resources)" add support in platform_get_irq to resolve irq and irq_flags respectively for both modern device tree and legacy static platform data platforms. Modify smsc911x driver to use platform_get_irq to pick up irq resource correctly and use irq_get_trigger_type to get the IRQ trigger flags. Signed-off-by: Kamlakant Patel <kamlakant.patel@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-04blk-mq: fix FUA request hangShaohua Li
When a FUA request enters its DATA stage of flush pipeline, the request is added to mq requeue list, the request will then be added to ctx->rq_list. blk_mq_attempt_merge() might merge the request with a bio. Later when the request is finished the flush pipeline, the request->__data_len is 0. Then I only saw the bio gets endio called, the original request never finish. Adding REQ_FLUSH_SEQ into REQ_NOMERGE_FLAGS looks an easy fix. stable: 3.15+ Signed-off-by: Shaohua Li <shli@fb.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2015-05-04drm/radeon: disable semaphores for UVD V1 (v2)Christian König
Hardware doesn't seem to work correctly, just block userspace in this case. v2: add missing defines Bugs: https://bugs.freedesktop.org/show_bug.cgi?id=85320 Signed-off-by: Christian König <christian.koenig@amd.com> CC: stable@vger.kernel.org Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2015-05-04net: core: Correct an over-stringent device loop detection.Vlad Yasevich
The code in __netdev_upper_dev_link() has an over-stringent loop detection logic that actually prevents valid configurations from working correctly. In particular, the logic returns an error if an upper device is already in the list of all upper devices for a given dev. This particular check seems to be a overzealous as it disallows perfectly valid configurations. For example: # ip l a link eth0 name eth0.10 type vlan id 10 # ip l a dev br0 typ bridge # ip l s eth0.10 master br0 # ip l s eth0 master br0 <--- Will fail If you switch the last two commands (add eth0 first), then both will succeed. If after that, you remove eth0 and try to re-add it, it will fail! It appears to be enough to simply check adj_list to keeps things safe. I've tried stacking multiple devices multiple times in all different combinations, and either rx_handler registration prevented the stacking of the device linking cought the error. Signed-off-by: Vladislav Yasevich <vyasevic@redhat.com> Acked-by: Jiri Pirko <jiri@resnulli.us> Acked-by: Veaceslav Falico <vfalico@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-04isdn/gigaset: cede maintainershipTilman Schmidt
As German phone operators are discontinuing ISDN service, neither Hansjörg nor I will be able to maintain the Gigaset ISDN drivers any longer. Paul Bolle offered to step into the breach for odd fixes. Signed-off-by: Tilman Schmidt <tilman@imap.cc> Acked-by: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-04bus: omap_l3_noc: Fix master id address decoding for OMAP5Suman Anna
The L3 Error handling on OMAP5 for the most part is very similar to that of OMAP4, and had leveraged common data structures and register layout definitions so far. Upon closer inspection, there are a few minor differences causing an incorrect decoding and reporting of the master NIU upon an error: 1. The L3_TARG_STDERRLOG_MSTADDR.STDERRLOG_MSTADDR occupies 11 bits on OMAP5 as against 8 bits on OMAP4, with the master NIU connID encoded in the 6 MSBs of the STDERRLOG_MSTADDR field. 2. The CLK3 FlagMux component has 1 input source on OMAP4 and 3 input sources on OMAP5. The common DEBUGSS source is at a different input on each SoC. Fix the above issues by using a OMAP5-specific compatible property and using SoC-specific data where there are differences. Signed-off-by: Suman Anna <s-anna@ti.com> Acked-by: Nishanth Menon <nm@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-05-04bus: omap_l3_noc: Fix offset for DRA7 CLK1_HOST_CLK1_2 instanceIllia Smyrnov
The base address for DRA7 CLK1_HOST_CLK1_2 host instance is 0x44800000, so correct offset is 0x800000. DRA7 TRM rev X(fewb 2015) has updates for this information. With wrong offset these errors are not correctly cleared by the L3 IRQ handler and cause an continuous interrupt scenario and system lockup. Signed-off-by: Illia Smyrnov <illia.smyrnov@globallogic.com> Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-05-04perf kmem: Add kmem.default config optionNamhyung Kim
Currently perf kmem command will select --slab if neither --slab nor --page is given for backward compatibility. Add kmem.default config option to select the default value ('page' or 'slab'). # cat ~/.perfconfig [kmem] default = page # perf kmem stat SUMMARY (page allocator) ======================== Total allocation requests : 1,518 [ 6,096 KB ] Total free requests : 1,431 [ 5,748 KB ] Total alloc+freed requests : 1,330 [ 5,344 KB ] Total alloc-only requests : 188 [ 752 KB ] Total free-only requests : 101 [ 404 KB ] Total allocation failures : 0 [ 0 KB ] ... Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Pekka Enberg <penberg@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Joonsoo Kim <js1304@gmail.com> Cc: Minchan Kim <minchan@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Taeung Song <treeze.taeung@gmail.com> Cc: linux-mm@kvack.org Link: http://lkml.kernel.org/r/1429592107-1807-6-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-05-04perf kmem: Print gfp flags in human readable stringNamhyung Kim
Save libtraceevent output and print it in the header. # perf kmem stat --page --caller # # GFP flags # --------- # 00000010: NI: GFP_NOIO # 000000d0: K: GFP_KERNEL # 00000200: NWR: GFP_NOWARN # 000084d0: K|R|Z: GFP_KERNEL|GFP_REPEAT|GFP_ZERO # 000200d2: HU: GFP_HIGHUSER # 000200da: HUM: GFP_HIGHUSER_MOVABLE # 000280da: HUM|Z: GFP_HIGHUSER_MOVABLE|GFP_ZERO # 002084d0: K|R|Z|NT: GFP_KERNEL|GFP_REPEAT|GFP_ZERO|GFP_NOTRACK # 0102005a: NF|HW|M: GFP_NOFS|GFP_HARDWALL|GFP_MOVABLE --------------------------------------------------------------------------------------------------------- Total alloc (KB) | Hits | Order | Mig.type | GFP flags | Callsite --------------------------------------------------------------------------------------------------------- 60 | 15 | 0 | UNMOVABL | K|R|Z|NT | pte_alloc_one 40 | 10 | 0 | MOVABLE | HUM|Z | handle_mm_fault 24 | 6 | 0 | MOVABLE | HUM | do_wp_page 24 | 6 | 0 | UNMOVABL | K | __pollwait ... Requested-by: Joonsoo Kim <js1304@gmail.com> Suggested-by: Minchan Kim <minchan@kernel.org> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Pekka Enberg <penberg@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: David Ahern <dsahern@gmail.com> Cc: Joonsoo Kim <js1304@gmail.com> Cc: Minchan Kim <minchan@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: linux-mm@kvack.org Link: http://lkml.kernel.org/r/1429592107-1807-5-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-05-04perf kmem: Add --live option for current allocation statNamhyung Kim
Currently 'perf kmem stat --page' shows total (page) allocation stat by default, but sometimes one might want to see live (total alloc-only) requests/pages only. The new --live option does this by subtracting freed allocation from the stat. E.g.: # perf kmem stat --page SUMMARY (page allocator) ======================== Total allocation requests : 988,858 [ 4,045,368 KB ] Total free requests : 886,484 [ 3,624,996 KB ] Total alloc+freed requests : 885,969 [ 3,622,628 KB ] Total alloc-only requests : 102,889 [ 422,740 KB ] Total free-only requests : 515 [ 2,368 KB ] Total allocation failures : 0 [ 0 KB ] Order Unmovable Reclaimable Movable Reserved CMA/Isolated ----- ------------ ------------ ------------ ------------ ------------ 0 172,173 3,083 806,686 . . 1 284 . . . . 2 6,124 58 . . . 3 114 335 . . . 4 . . . . . 5 . . . . . 6 . . . . . 7 . . . . . 8 . . . . . 9 . . 1 . . 10 . . . . . # perf kmem stat --page --live SUMMARY (page allocator) ======================== Total allocation requests : 988,858 [ 4,045,368 KB ] Total free requests : 886,484 [ 3,624,996 KB ] Total alloc+freed requests : 885,969 [ 3,622,628 KB ] Total alloc-only requests : 102,889 [ 422,740 KB ] Total free-only requests : 515 [ 2,368 KB ] Total allocation failures : 0 [ 0 KB ] Order Unmovable Reclaimable Movable Reserved CMA/Isolated ----- ------------ ------------ ------------ ------------ ------------ 0 2,214 3,025 97,156 . . 1 59 . . . . 2 19 58 . . . 3 23 335 . . . 4 . . . . . 5 . . . . . 6 . . . . . 7 . . . . . 8 . . . . . 9 . . . . . 10 . . . . . # Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Pekka Enberg <penberg@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Joonsoo Kim <js1304@gmail.com> Cc: Minchan Kim <minchan@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: linux-mm@kvack.org Link: http://lkml.kernel.org/r/1429592107-1807-4-git-send-email-namhyung@kernel.org [ Added examples to the changeset log ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-05-04perf kmem: Support sort keys on page analysisNamhyung Kim
Add new sort keys for page: page, order, migtype, gfp - existing 'bytes', 'hit' and 'callsite' sort keys also work for page. Note that -s/--sort option should be preceded by either of --slab or --page option to determine where the sort keys applies. Now it properly groups and sorts allocation stats - so same page/caller with different order/migtype/gfp will be printed on a different line. # perf kmem stat --page --caller -l 10 -s order,hit ----------------------------------------------------------------------------- Total alloc (KB) | Hits | Order | Mig.type | GFP flags | Callsite ----------------------------------------------------------------------------- 64 | 4 | 2 | RECLAIM | 00285250 | new_slab 50,144 | 12,536 | 0 | MOVABLE | 0102005a | __page_cache_alloc 52 | 13 | 0 | UNMOVABL | 002084d0 | pte_alloc_one 40 | 10 | 0 | MOVABLE | 000280da | handle_mm_fault 28 | 7 | 0 | UNMOVABL | 000000d0 | __pollwait 20 | 5 | 0 | MOVABLE | 000200da | do_wp_page 20 | 5 | 0 | MOVABLE | 000200da | do_cow_fault 16 | 4 | 0 | UNMOVABL | 00000200 | __tlb_remove_page 16 | 4 | 0 | UNMOVABL | 000084d0 | __pmd_alloc 8 | 2 | 0 | UNMOVABL | 000084d0 | __pud_alloc ... | ... | ... | ... | ... | ... ----------------------------------------------------------------------------- Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Pekka Enberg <penberg@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Joonsoo Kim <js1304@gmail.com> Cc: Minchan Kim <minchan@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: linux-mm@kvack.org Link: http://lkml.kernel.org/r/1429592107-1807-3-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-05-04libata: Blacklist queued TRIM on all Samsung 800-seriesMartin K. Petersen
The queued TRIM problems appear to be generic to Samsung's firmware and not tied to a particular model. A recent update to the 840 EVO firmware introduced the same issue as we saw on 850 Pro. Blacklist queued TRIM on all 800-series drives while we work this issue with Samsung. Reported-by: Günter Waller <g.wal@web.de> Reported-by: Sven Köhler <sven.koehler@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Cc: stable@vger.kernel.org Signed-off-by: Tejun Heo <tj@kernel.org>
2015-05-04ARM: dts: dra7: Fix efuse register size for ABBNishanth Menon
Fix a typo in DRA7 dtsi where 12 bytes are needed for register description of ABB efuse registers, however only 8 bytes are provided to map. For some weird reason, this does not generate abort at offset 0x8, probably due to default maps already provided in io.c for the bus register ranges. Reported-by: Matt Gessner <Matt.Gessner@windriver.com> Reported-by: Suman Anna <s-anna@ti.com> Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-05-04ARM: dts: am57xx-beagle-x15: Switch GPIO fan numberNishanth Menon
BeagleBoard-X15 pre-production change includes switching the GPIO fan gpio over from 1 to 2 to allow for a potential fix at a later point in time for USB client VBUS detection using PMIC VBUS detect capability. Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-05-04ARM: dts: am57xx-beagle-x15: Switch UART mux pinsNishanth Menon
BeagleBoard-X15 pre-production change includes switching over to UART pins that now allow for UART download capability. All original boards should either have been returned for modifications or already modified for the required change and maintaining compatibility for older boards are no longer needed. Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-05-04ARM: dts: am437x-sk: reduce col-scan-delay-usFelipe Balbi
The new AM437x SK Beta boards have removed the large capacitors on the gpio-matrix column lines which means we can reduce col-scan-delay-us to 5us without loosing functionality. Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-05-04ARM: dts: am437x-sk: fix for new newhaven display module revisionFelipe Balbi
AM437x Starter Kit uses a NewHaven Display module with a 4.3" display and EDT FT5306 touchscreen On that module's new revision, NewHave decided to change the pinout on the 6 pin flat-pcb touchscreen connector so that instead of having WAKE pin, we now have RESETn. The new display module is available on AM437x SK Beta and all new revisions while the older revision is only available on AM437x SK Alpha which, unfortunately, can't be supported anymore in mainline without a revert of this patch. Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-05-04ARM: dts: am57xx-beagle-x15: Fix RTC aliasesNishanth Menon
With commit bc078316d86c ("ARM: dts: DRA7: Add node for RTC"), we now have AM57xx RTC register itself as alias 0 even before DS1307 or TPS rtc drivers are loaded up. However, since neither TPS, nor AM57xx RTC are capable of being backedup by battery, we would like to maintain the "primary" rtc as mcp79410 rtc device. This also generates the following warnings in the bootlog highlighting the issue: [ 5.895445] rtc-ds1307 2-006f: /aliases ID 0 not available ... [ 6.476285] palmas-rtc 48070000.i2c:tps659038@58:tps659038_rtc: /aliases ID 1 not available So, add proper aliases to ensure that RTC order is always consistent to userspace immaterial of probe order. Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-05-04ARM: dts: am57xx-beagle-x15: Fix IRQ type for mcp7941xGrygorii Strashko
The interrupt polarity provided in devicetree is used to configure the interrupt controller(ARM GIC), however, it seems that we have an inverter at the GIC boundary inside AM57xx which inverts the signal input from sys_irq external interrupt source. Further, as per GIC distributor TRM, http://infocenter.arm.com/help/topic/com.arm.doc.ddi0438d/BGBHIACJ.html#BABJFCFB ARM GIC distributor does not support IRQ trigger type IRQ_TYPE_LEVEL_LOW, and only rising or level high signals. However, for some reason, the current configuration(which gets ignored by GIC driver) functions on some platforms, however, on few platforms results in infinite interrupts hogging the system down. Switch over to rising edge for GIC configuration which is also aligned with trigger point from the RTC chip and the internal inversion. Fixes: 5a0f93c6576a ("ARM: dts: Add am57xx-beagle-x15") Signed-off-by: Grygorii Strashko <Grygorii.Strashko@linaro.org> Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-05-04ARM: dts: omap3: Add #iommu-cells to isp and iva iommuSebastian Reichel
Add missing #iommu-cells property to the isp and iva iommu nodes. This fixes the binding (property is required according to the generic iommu binding) and removes the following kernel warning triggered once the iommu nodes are referenced: [ 0.647521] /ocp/isp@480bc000: could not get #iommu-cells for /ocp/mmu@480bd400 Signed-off-by: Sebastian Reichel <sre@kernel.org> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Sakari Ailus <sakari.ailus@iki.fi> Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-05-04ARM: omap2plus_defconfig: Enable EXTCON_USB_GPIORoger Quadros
We need to enable EXTCON_USB_GPIO_USB and not EXTCON_GPIO_USB. Fixes: c08a54c0ebeb ("ARM: omap2plus_defconfig: Enable EXTCON_GPIO_USB") Reported-by: Nishant Menon <nm@ti.com> Signed-off-by: Roger Quadros <rogerq@ti.com> Acked-by-by: Nishanth Menon <nm@ti.com Tested-by: Nishanth Menon <nm@ti.com Reviewed-by: Felipe Balbi <balbi@ti.com> Acked-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-05-04ARM: dts: OMAP3-N900: Add microphone bias voltagesPavel Machek
N900 audio recording needs that codec provides bias voltage for integrated digital microphone and headset microphone depending which one is used. Digital microphone uses 2 V bias and it comes from the codec A part. Codec B part drives the headset microphone bias and that is set to 2.5 V. Cc: stable@vger.kernel.org # v3.16+ Signed-off-by: Pavel Machek <pavel@ucw.cz> [Jarkko: Headset mic bias changed to 2 (2.5 V) as it was before commit e2e8bfdf6157 ("ASoC: tlv320aic3x: Convert mic bias to a supply widget")] Signed-off-by: Jarkko Nikula <jarkko.nikula@bitmer.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-05-04nfsd: skip CB_NULL probes for 4.1 or laterChristoph Hellwig
With sessions in v4.1 or later we don't need to manually probe the backchannel connection, so we can declare it up instantly after setting up the RPC client. Note that we really should split nfsd4_run_cb_work in the long run, this is just the least intrusive fix for now. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2015-05-04nfsd: fix callback restartsChristoph Hellwig
Checking the rpc_client pointer is not a reliable way to detect backchannel changes: cl_cb_client is changed only after shutting down the rpc client, so the condition cl_cb_client = tk_client will always be true. Check the RPC_TASK_KILLED flag instead, and rewrite the code to avoid the buggy cl_callbacks list and fix the lifetime rules due to double calls of the ->prepare callback operations method for this retry case. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2015-05-04nfsd: split transport vs operation errors for callbacksChristoph Hellwig
We must only increment the sequence id if the client has seen and responded to a request. If we failed to deliver it to the client we must resend with the same sequence id. So just like the client track errors at the transport level differently from those returned in the XDR. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2015-05-04svcrpc: fix potential GSSX_ACCEPT_SEC_CONTEXT decoding failuresScott Mayhew
In an environment where the KDC is running Active Directory, the exported composite name field returned in the context could be large enough to span a page boundary. Attaching a scratch buffer to the decoding xdr_stream helps deal with those cases. The case where we saw this was actually due to behavior that's been fixed in newer gss-proxy versions, but we're fixing it here too. Signed-off-by: Scott Mayhew <smayhew@redhat.com> Cc: stable@vger.kernel.org Reviewed-by: Simo Sorce <simo@redhat.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2015-05-04nfsd: fix pNFS return on close semanticsSachin Bhamare
For the sake of forgetful clients, the server should return the layouts to the file system on 'last close' of a file (assuming that there are no delegations outstanding to that particular client) or on delegreturn (assuming that there are no opens on a file from that particular client). In theory the information is all there in current data structures, but it's not efficiently available; nfs4_file->fi_ref includes references on the file across all clients, but we need a per-(client, file) count. Walking through lots of stateid's to calculate this on each close or delegreturn would be painful. This patch introduces infrastructure to maintain per-client opens and delegation counters on a per-file basis. [hch: ported to the mainline pNFS support, merged various fixes from Jeff] Signed-off-by: Sachin Bhamare <sachin.bhamare@primarydata.com> Signed-off-by: Jeff Layton <jlayton@primarydata.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2015-05-04nfsd: fix the check for confirmed openowner in nfs4_preprocess_stateid_opChristoph Hellwig
If we find a non-confirmed openowner we jump to exit the function, but do not set an error value. Fix this by factoring out a helper to do the check and properly set the error from nfsd4_validate_stateid. Cc: stable@vger.kernel.org Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2015-05-04nfsd/blocklayout: pretend we can send deviceid notificationsChristoph Hellwig
Commit df52699e4fcef ("NFSv4.1: Don't cache deviceids that have no notifications") causes the Linux NFS client to stop caching deviceid's unless a server pretends to support deviceid notifications. While this behavior is stupid and the language around this area in rfc5661 is a mess carified by an errata that I submittted, Trond insists on this behavior. Not caching deviceids degrades block layout performance massively as a GETDEVICEINFO is fairly expensive. So add this hack to make the Linux client happy again. Cc: stable@vger.kernel.org Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2015-05-04ARM: OMAP2+: Fix omap off idle power consumption creeping upTony Lindgren
If we use a combination of VMODE and I2C4 for retention modes, eventually the off idle power consumption will creep up by about 23mW, even during off mode with I2C4 always staying enabled. Turns out this is because of erratum i531 "Extra Power Consumed When Repeated Start Operation Mode Is Enabled on I2C Interface Dedicated for Smart Reflex (I2C4)" as pointed out by Nishanth Menon <nm@ti.com>. Let's fix the issue by adding i2c_cfg_clear_mask for the bits to clear when initializing the I2C4 adapter so we can clear SREN bit that drives the I2C4 lines low otherwise when there is no traffic. Fixes: 3b8c4ebb7630 ("ARM: OMAP3: Fix idle mode signaling for Cc: stable@vger.kernel.org # v3.16+ sys_clkreq and sys_off_mode") Cc: Kevin Hilman <khilman@kernel.org> Cc: Tero Kristo <t-kristo@ti.com> Reviewed-by: Nishanth Menon <nm@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-05-04perf kmem: Implement stat --page --callerNamhyung Kim
It is 'perf kmem' support caller statistics for page. Unlike slab case, the tracepoints in page allocator don't provide callsite info. So it records with callchain and extracts callsite info. Note that the callchain contains several memory allocation functions which has no meaning for users. So skip those functions to get proper callsites. I used following regex pattern to skip the allocator functions: ^_?_?(alloc|get_free|get_zeroed)_pages? This gave me a following list of functions: # perf kmem record --page sleep 3 # perf kmem stat --page -v ... alloc func: __get_free_pages alloc func: get_zeroed_page alloc func: alloc_pages_exact alloc func: __alloc_pages_direct_compact alloc func: __alloc_pages_nodemask alloc func: alloc_page_interleave alloc func: alloc_pages_current alloc func: alloc_pages_vma alloc func: alloc_page_buffers alloc func: alloc_pages_exact_nid ... The output looks mostly same as --alloc (I also added callsite column to that) but groups entries by callsite. Currently, the order, migrate type and GFP flag info is for the last allocation and not guaranteed to be same for all allocations from the callsite. --------------------------------------------------------------------------------------------- Total_alloc (KB) | Hits | Order | Mig.type | GFP flags | Callsite --------------------------------------------------------------------------------------------- 1,064 | 266 | 0 | UNMOVABL | 000000d0 | __pollwait 52 | 13 | 0 | UNMOVABL | 002084d0 | pte_alloc_one 44 | 11 | 0 | MOVABLE | 000280da | handle_mm_fault 20 | 5 | 0 | MOVABLE | 000200da | do_cow_fault 20 | 5 | 0 | MOVABLE | 000200da | do_wp_page 16 | 4 | 0 | UNMOVABL | 000084d0 | __pmd_alloc 16 | 4 | 0 | UNMOVABL | 00000200 | __tlb_remove_page 12 | 3 | 0 | UNMOVABL | 000084d0 | __pud_alloc 8 | 2 | 0 | UNMOVABL | 00000010 | bio_copy_user_iov 4 | 1 | 0 | UNMOVABL | 000200d2 | pipe_write 4 | 1 | 0 | MOVABLE | 000280da | do_wp_page 4 | 1 | 0 | UNMOVABL | 002084d0 | pgd_alloc --------------------------------------------------------------------------------------------- Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Pekka Enberg <penberg@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Joonsoo Kim <js1304@gmail.com> Cc: Minchan Kim <minchan@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: linux-mm@kvack.org Link: http://lkml.kernel.org/r/1429592107-1807-2-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-05-04perf probe: Accept filter argument for --listMasami Hiramatsu
Currently, perf-probe --list option ignores given event filter. ---- # ./perf probe -l vfs\* probe:vfs_read (on vfs_read@ksrc/linux-3/fs/read_write.c) probe_libc:malloc (on __libc_malloc@malloc/malloc.c in /usr/lib64/libc-2.17.so) ---- This changes --list option to accept the event filter argument as below. ---- # ./perf probe -l vfs\* probe:vfs_read (on vfs_read@ksrc/linux-3/fs/read_write.c) # ./perf probe -l \*libc:\* probe_libc:malloc (on __libc_malloc@malloc/malloc.c in /usr/lib64/libc-2.17.so) ---- Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20150424094750.23967.53868.stgit@localhost.localdomain Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-05-04perf probe: Accept multiple filter optionsMasami Hiramatsu
Accept multiple filter options. Each filters are combined by logical-or. E.g. --filter abc* --filter *def is same as --filter abc*|*def Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20150424094748.23967.63355.stgit@localhost.localdomain Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-05-04perf tools: Add strfilter__string to recover rules stringMasami Hiramatsu
Add strfilter__string to recover rules string from strfilter. This will be good for debugging. Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20150424094746.23967.52434.stgit@localhost.localdomain Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-05-04perf tools: Improve strfilter to append additional rulesMasami Hiramatsu
Add strfilter__or/and to append additional rules to existing strfilter. Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20150424094744.23967.97614.stgit@localhost.localdomain Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-05-04perf probe: Improve detection of file/function name in the probe patternNaveen N. Rao
Currently, perf probe considers patterns including a '.' to be a file. However, this causes problems on powerpc ABIv1 where all functions have a leading '.': $ perf probe -F | grep schedule_timeout_interruptible .schedule_timeout_interruptible $ perf probe .schedule_timeout_interruptible Semantic error :File always requires line number or lazy pattern. Error: Command Parse Error. Fix this: - by checking the probe pattern in more detail, and - skipping leading dot if one exists when creating/deleting events. Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Reviewed-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Cc: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Cc: linuxppc-dev@lists.ozlabs.org Link: http://lkml.kernel.org/r/db680f7cb11c4452b632f908e67151f3aa0f4602.1430217967.git.naveen.n.rao@linux.vnet.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-05-04perf tools: Fix bison-related build failure on CentOS 6Namhyung Kim
The YYLTYPE_IS_TRIVIAL is defined in the Build file, but unlike pmu-bison.c, gcc complained about it for parse-events-bison.c: CC util/parse-events-bison.o In file included from util/parse-events.y:16: util/parse-events-bison.h:101:1: error: "YYLTYPE_IS_TRIVIAL" redefined <command-line>: error: this is the location of the previous definition make[3]: *** [util/parse-events-bison.o] Error 1 Comments from Jiri Olsa: "Reason is the parse error handling that was added just recently: it adds YYLTYPE type (which is not present in pmu-bison.h), so YYLTYPE_IS_TRIVIAL gets redefined, which is ok in F20 that handle the error via '-w' option, but it's not ok for RHEL6 where the '-w' does not work for this kind of error." Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: David Ahern <dsahern@gmail.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1430322871-18107-1-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-05-04perf symbols: Warn on build id mismatchNaveen N. Rao
Add a debug message to indicate that the build id didn't match. Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Link: http://lkml.kernel.org/r/1429904686-16516-1-git-send-email-naveen.n.rao@linux.vnet.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-05-04perf report: Add Instruction Tracing supportAdrian Hunter
Add support for decoding an AUX area assuming it contains instruction tracing data. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1429903807-20559-4-git-send-email-adrian.hunter@intel.com [ Do not use -Z as an alternative to --itrace ] [ Fixed initialization of itrace_synth_opts struct fields on older gcc versions ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-05-04perf script: Always allow fields 'addr' and 'cpu' for auxtraceAdrian Hunter
If a file contains AUX area tracing data then always allow fields 'addr' and 'cpu' to be selected as options for perf script. This is necessary because AUX area decoding may synthesize events with that information. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1429903807-20559-3-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-05-04perf evlist: Amend mmap ref counting for the AUX area mmapAdrian Hunter
Reference counting of the mmap buffer does not work correctly when there is an AUX area mmap also. In snapshot mode it is not easy to know if the AUX area mmap buffer contains usefull information. Equally the evlist does not know if the recording is in sanpshot mode anyway. Consequently, for now just assume the AUX area mmap always has data, which will just cause the mmap buffer to remain mmapped for the duration of the recording. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1429903807-20559-2-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-05-04perf probe ppc64le: Fixup function entry if using kallsyms lookupNaveen N. Rao
On powerpc ABIv2, if no debug-info is found and we use kallsyms, we need to fixup the function entry to point to the local entry point. Use offset of 8 since current toolchains always generate 2 instructions (8 bytes). Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Reviewed-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Cc: linuxppc-dev@lists.ozlabs.org Link: http://lkml.kernel.org/r/92253021e77a104b23b615c8c23bf9501dfe60bf.1430217967.git.naveen.n.rao@linux.vnet.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-05-04perf probe ppc64le: Prefer symbol table lookup over DWARFNaveen N. Rao
Use symbol table lookups by default if DWARF is not necessary, since powerpc ABIv2 encodes local entry points in the symbol table and the function entry address in DWARF may not be appropriate for kprobes, as described here: https://sourceware.org/bugzilla/show_bug.cgi?id=17638 "The DWARF address ranges deliberately include the *whole* function, both global and local entry points." ... "If you want to set probes on a local entry point, you should look up the symbol in the main symbol table (not DWARF), and check the st_other bits; they will indicate whether the function has a local entry point, and what its offset from the global entry point is. Note that GDB does the same when setting a breakpoint on a function entry." Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Reviewed-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Cc: linuxppc-dev@lists.ozlabs.org Link: http://lkml.kernel.org/r/88a10e22f4aaba2aef812824ca4b10d7beeea012.1430217967.git.naveen.n.rao@linux.vnet.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-05-04perf probe ppc64le: Fix ppc64 ABIv2 symbol decodingAnanth N Mavinakayanahalli
ppc64 ELF ABIv2 has a Global Entry Point (GEP) and a Local Entry Point (LEP). For purposes of probing, we need the LEP - the offset to which is encoded in st_other. Signed-off-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Reviewed-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Cc: linuxppc-dev@lists.ozlabs.org Link: http://lkml.kernel.org/r/ab9cc5e2b9de4cbaaf50f6ef2346a6a81100bad1.1430217967.git.naveen.n.rao@linux.vnet.ibm.com Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-05-04perf probe ppc: Enable matching against dot symbols automaticallyNaveen N. Rao
Allow perf probe to work on ppc ABIv1 without the need to specify the leading dot '.' for functions. 'perf probe do_fork' works with this patch. We do this by changing how symbol name comparison works on ppc ABIv1 - we simply ignore and skip over the initial dot, if one exists, during symbol name comparison. Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Reviewed-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Cc: linuxppc-dev@lists.ozlabs.org Link: http://lkml.kernel.org/r/652a8f3bfa919bd02a1836a128370eaed59b4a34.1430217967.git.naveen.n.rao@linux.vnet.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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