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* hwmon: (pmbus) Add support for Lineage Power DC-DC convertersGuenter Roeck2011-10-241-0/+8
| | | | | | | Add device IDs and reference to datasheets for Lineage Power DC-DC converters. Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com> Reviewed-by: Robert Coulson <robert.coulson@ericsson.com>
* hwmon: (pmbus/ltc2978) Add support for LTC3880 to LTC2978 driverGuenter Roeck2011-10-241-16/+41
| | | | | | | | The LTC3880 PMBus command set is comparable to LTC2978. Add support for it to the LTC2978 driver. Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com> Reviewed-by: Robert Coulson <robert.coulson@ericsson.com>
* hwmon: (pmbus/ltc2978) Explicit driver for LTC2978Guenter Roeck2011-10-242-5/+78
| | | | | | | | Provide explicit driver for LTC2978 to enable support for minimum and peak attributes. Remove ltc2978 chip id from generic pmbus driver. Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com> Reviewed-by: Robert Coulson <robert.coulson@ericsson.com>
* hwmon: AD7314 driver (ported from IIO)Jonathan Cameron2011-10-241-0/+25
| | | | | | | | | | Driver for AD7314, ADT7301, and ADT7302, ported from IIO. Currently dropped power down mode support. Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk> [guenter.roeck@ericsson.com: Added MODULE_DEVICE_TABLE] Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
* hwmon: (pmbus) Add support for Intersil power management chipsGuenter Roeck2011-10-241-0/+125
| | | | | | | | Add support for Intersil / Zilker Labs ZL2004, ZL2006, ZL2008, ZL2105, ZL2106, ZL6100, and ZL6105. Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com> Reviewed-by: Robert Coulson <robert.coulson@ericsson.com>
* hwmon: (pmbus) Provide more documentationGuenter Roeck2011-10-241-0/+283
| | | | | | | | Provide more documentation describing PMBus driver functionality and the API between the PMBus core driver and PMBus chip drivers. Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com> Reviewed-by: Robert Coulson <robert.coulson@ericsson.com>
* hwmon: Add driver for EXYNOS4 TMUDonggeun Kim2011-10-241-0/+81
| | | | | | | | | | This patch allows to read temperature from TMU(Thermal Management Unit) of SAMSUNG EXYNOS4 series of SoC. Signed-off-by: Donggeun Kim <dg77.kim@samsung.com> Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
* hwmon: (pmbus/adm1275) Add support for ADM1276Guenter Roeck2011-10-241-14/+18
| | | | | | | | ADM1276 is mostly compatible to ADM1275, with added support for input power measurement. Add support for it to the ADM1275 driver. Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com> Acked-by: Jean Delvare <khali@linux-fr.org>
* hwmon: (pmbus/adm1275) Add support for second current limitGuenter Roeck2011-10-241-0/+8
| | | | | | | | | | | | ADM1275 supports a second current limit, which can be configured as either lower or upper limit. Add support for it and report it as either lower or upper critical current limit. Also replace error return code EINVAL for unsupported pages with ENXIO as this is more appropriate for the observed condition. Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com> Acked-by: Jean Delvare <khali@linux-fr.org>
* x86: Default to vsyscall=native for nowAdrian Bunk2011-10-111-3/+4
| | | | | | | | | | | | | | | | | | | | This UML breakage: linux-2.6.30.1[3800] vsyscall fault (exploit attempt?) ip:ffffffffff600000 cs:33 sp:7fbfb9c498 ax:ffffffffff600000 si:0 di:606790 linux-2.6.30.1[3856] vsyscall fault (exploit attempt?) ip:ffffffffff600000 cs:33 sp:7fbfb13168 ax:ffffffffff600000 si:0 di:606790 Is caused by commit 3ae36655 ("x86-64: Rework vsyscall emulation and add vsyscall= parameter") - the vsyscall emulation code is not fully cooked yet as UML relies on some rather fragile SIGSEGV semantics. Linus suggested in https://lkml.org/lkml/2011/8/9/376 to default to vsyscall=native for now, this patch implements that. Signed-off-by: Adrian Bunk <bunk@kernel.org> Acked-by: Andrew Lutomirski <luto@mit.edu> Cc: H. Peter Anvin <hpa@linux.intel.com> Link: http://lkml.kernel.org/r/20111005214047.GE14406@localhost.pp.htv.fi Signed-off-by: Ingo Molnar <mingo@elte.hu>
* net: fix typos in Documentation/networking/scaling.txtBenjamin Poirier2011-10-061-5/+5
| | | | | | | The second hunk fixes rps_sock_flow_table but has to re-wrap the paragraph. Signed-off-by: Benjamin Poirier <benjamin.poirier@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: Documentation: Fix type of variablesRoy.Li2011-09-291-2/+2
| | | | | Signed-off-by: Roy.Li <rongqing.li@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge git://github.com/davem330/netLinus Torvalds2011-09-281-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://github.com/davem330/net: ipv6-multicast: Fix memory leak in IPv6 multicast. ipv6: check return value for dst_alloc net: check return value for dst_alloc ipv6-multicast: Fix memory leak in input path. bnx2x: add missing break in bnx2x_dcbnl_get_cap bnx2x: fix WOL by enablement PME in config space bnx2x: fix hw attention handling net: fix a typo in Documentation/networking/scaling.txt ath9k: Fix a dma warning/memory leak rtlwifi: rtl8192cu: Fix unitialized struct iwlagn: fix dangling scan request batman-adv: do_bcast has to be true for broadcast packets only cfg80211: Fix validation of AKM suites iwlegacy: do not use interruptible waits iwlegacy: fix command queue timeout ath9k_hw: Fix Rx DMA stuck for AR9003 chips
| * net: fix a typo in Documentation/networking/scaling.txtJason Wang2011-09-271-1/+1
| | | | | | | | | | Signed-off-by: Jason Wang <jasowang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge branch 'hwmon-for-linus' of git://github.com/groeck/linuxLinus Torvalds2011-09-261-10/+4
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'hwmon-for-linus' of git://github.com/groeck/linux: hwmon: (coretemp) remove struct platform_data * parameter from create_core_data() hwmon: (coretemp) constify static data hwmon: (coretemp) don't use kernel assigned CPU number as platform device ID hwmon: (ds620) Fix handling of negative temperatures hwmon: (w83791d) rename prototype parameter from 'register' to 'reg' hwmon: (coretemp) Don't use threshold registers for tempX_max hwmon: (coretemp) Let the user force TjMax hwmon: (coretemp) Drop duplicate function get_pkg_tjmax
| * | hwmon: (coretemp) Don't use threshold registers for tempX_maxGuenter Roeck2011-09-221-7/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With commit c814a4c7c4aad795835583344353963a0a673eb0, the meaning of tempX_max was changed. It no longer returns the value of bits 8:15 of MSR_IA32_TEMPERATURE_TARGET, but instead returns the value of CPU threshold register T1. tempX_max_hyst was added to reflect the value of temperature threshold register T0. As it turns out, T0 and T1 are used on some systems, presumably by the BIOS. Also, T0 and T1 don't have a well defined meaning. The thresholds may be used as upper or lower limits, and it is not guaranteed that T0 <= T1. Thus, the new attribute mapping does not reflect the actual usage of the threshold registers. Also, register contents are changed during runtime by an entity other than the hwmon driver, meaning the values cached by the driver do not reflect actual register contents. Revert most of c814a4c7c4aad795835583344353963a0a673eb0 to address the problem. Support for T0 and T1 will be added back in with a separate commit, using new attribute names. Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Durgadoss R <durgadoss.r@intel.com> Acked-by: Jean Delvare <khali@linux-fr.org>
| * | hwmon: (coretemp) Let the user force TjMaxJean Delvare2011-09-221-3/+4
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | On old CPUs (and even some recent Atom CPUs) TjMax can't be read from the CPU registers, so it is guessed by the driver using a complex heuristic which isn't reliable. So let users who know their CPU's TjMax pass it as a module parameter. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: "R, Durgadoss" <durgadoss.r@intel.com> Cc: Guenter Roeck <guenter.roeck@ericsson.com> Cc: Alexander Stein <alexander.stein@systec-electronic.com> Acked-by: Fenghua Yu <fenghua.yu@intel.com> Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
* / thp: fix khugepaged defrag tunable documentationDavid Rientjes2011-09-221-3/+4
|/ | | | | | | | | | | | | | | Commit e27e6151b154 ("mm/thp: use conventional format for boolean attributes") changed /sys/kernel/mm/transparent_hugepage/khugepaged/defrag to be tuned by using 1 (enabled) or 0 (disabled) instead of "yes" and "no", respectively. Update the documentation. Signed-off-by: David Rientjes <rientjes@google.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge git://github.com/davem330/netLinus Torvalds2011-09-181-1/+2
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://github.com/davem330/net: (62 commits) ipv6: don't use inetpeer to store metrics for routes. can: ti_hecc: include linux/io.h IRDA: Fix global type conflicts in net/irda/irsysctl.c v2 net: Handle different key sizes between address families in flow cache net: Align AF-specific flowi structs to long ipv4: Fix fib_info->fib_metrics leak caif: fix a potential NULL dereference sctp: deal with multiple COOKIE_ECHO chunks ibmveth: Fix checksum offload failure handling ibmveth: Checksum offload is always disabled ibmveth: Fix issue with DMA mapping failure ibmveth: Fix DMA unmap error pch_gbe: support ML7831 IOH pch_gbe: added the process of FIFO over run error pch_gbe: fixed the issue which receives an unnecessary packet. sfc: Use 64-bit writes for TX push where possible Revert "sfc: Use write-combining to reduce TX latency" and follow-ups bnx2x: Fix ethtool advertisement bnx2x: Fix 578xx link LED bnx2x: Fix XMAC loopback test ...
| * Merge branch 'master' of ../netdev/David S. Miller2011-09-161-2/+1
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| * | Documentation: networking: dmfe.txt: Remove the maintainer of orphan ↵Marcos Paulo de Souza2011-09-151-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | networking driver The dmfe module is a orphan driver, and with this was removed the maintainer of the documentation. Signed-off-by: Marcos Paulo de Souza <marcos.mage@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | memcg: Revert "memcg: add memory.vmscan_stat"Johannes Weiner2011-09-151-84/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Revert the post-3.0 commit 82f9d486e59f5 ("memcg: add memory.vmscan_stat"). The implementation of per-memcg reclaim statistics violates how memcg hierarchies usually behave: hierarchically. The reclaim statistics are accounted to child memcgs and the parent hitting the limit, but not to hierarchy levels in between. Usually, hierarchical statistics are perfectly recursive, with each level representing the sum of itself and all its children. Since this exports statistics to userspace, this may lead to confusion and problems with changing things after the release, so revert it now, we can try again later. Signed-off-by: Johannes Weiner <jweiner@redhat.com> Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp> Cc: Michal Hocko <mhocko@suse.cz> Cc: Ying Han <yinghan@google.com> Cc: Balbir Singh <bsingharora@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | Merge git://bedivere.hansenpartnership.com/git/scsi-rc-fixes-2.6Linus Torvalds2011-09-151-0/+13
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://bedivere.hansenpartnership.com/git/scsi-rc-fixes-2.6: (25 commits) [SCSI] bnx2i: Fixed the endian on TTT for NOP out transmission [SCSI] libfc: fix referencing to fc_fcp_pkt from the frame pointer via fr_fsp() [SCSI] libfc: block SCSI eh thread for blocked rports [SCSI] libfc: fix fc_eh_host_reset [SCSI] fcoe: Fix deadlock between fip's recv_work and rtnl [SCSI] qla2xxx: Update version number to 8.03.07.07-k. [SCSI] qla2xxx: Set the task attributes after memsetting fcp cmnd. [SCSI] qla2xxx: Correct inadvertent loop state transitions during port-update handling. [SCSI] qla2xxx: Save and restore irq in the response queue interrupt handler. [SCSI] qla2xxx: Double check for command completion if abort mailbox command fails. [SCSI] qla2xxx: Acquire hardware lock while manipulating dsd list. [SCSI] qla2xxx: Fix qla24xx revision check while enabling interrupts. [SCSI] qla2xxx: T10 DIF - Fix incorrect error reporting. [SCSI] qla2xxx: T10 DIF - Handle uninitalized sectors. [SCSI] hpsa: fix physical device lun and target numbering problem [SCSI] hpsa: fix problem that OBDR devices are not detected [SCSI] isci: add version number [SCSI] isci: fix event-get pointer increment [SCSI] isci: dynamic interrupt coalescing [SCSI] isci: Leave requests alone if already terminating. ...
| * | | [SCSI] isci: Adding documentation to API change and fixup sysfs registrationDave Jiang2011-08-241-0/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Adding API update for adding isci_id entry scsi_host sysfs entry. Also fixing up the sysfs registration to the scsi_host template Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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*---. \ \ \ Merge branches 'apei', 'bz-13195' and 'doc' into acpiLen Brown2011-09-131-3/+6
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| | | * | | PNP: update pnp.debug usage (needs value on command line)Bjorn Helgaas2011-08-111-3/+6
| | |/ / / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit cdefba03e44 changed pnp.debug from a boot param to a module param, which means it needs a value when used on the command line. CC: Thomas Renninger <trenn@suse.de> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | | | | ioctl: register LTTng ioctlMathieu Desnoyers2011-09-121-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The LTTng 2.0 kernel tracer (stand-alone module package, available at http://lttng.org) uses the 0xF6 ioctl range for tracer control and transport operations. Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | Merge branch 'v4l_for_linus' of git://linuxtv.org/mchehab/for_linusLinus Torvalds2011-09-111-19/+19
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'v4l_for_linus' of git://linuxtv.org/mchehab/for_linus: [media] vp7045: fix buffer setup [media] nuvoton-cir: simplify raw IR sample handling [media] [Resend] viacam: Don't explode if pci_find_bus() returns NULL [media] v4l2: Fix documentation of the codec device controls [media] gspca - sonixj: Fix the darkness of sensor om6802 in 320x240 [media] gspca - sonixj: Fix wrong register mask for sensor om6802 [media] gspca - ov519: Fix LED inversion of some ov519 webcams [media] pwc: precedence bug in pwc_init_controls()
| * | | | | [media] v4l2: Fix documentation of the codec device controlsKamil Debski2011-09-111-19/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fixed missing ids of the codec controls description in the controls.xml file. Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Reported-by: Randy Dunlap <rdunlap@xenotime.net> Acked-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* | | | | | hwmon: (max16065) Add chip access warning to documentationGuenter Roeck2011-09-061-0/+7
|/ / / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The chips supported by the max16065 driver should not be accessed using direct i2ctools commands. Add warning to driver documentation to alert users. Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com> Acked-by: Jean Delvare <khali@linux-fr.org>
* | | | | Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfsLinus Torvalds2011-09-021-0/+8
|\ \ \ \ \ | |_|/ / / |/| | | | | | | | | | | | | | | | | | | | | | | | * 'for-linus' of git://oss.sgi.com/xfs/xfs: xfs: fix ->write_inode return values xfs: fix xfs_mark_inode_dirty during umount xfs: deprecate the nodelaylog mount option
| * | | | xfs: deprecate the nodelaylog mount optionChristoph Hellwig2011-08-251-0/+8
| |/ / / | | | | | | | | | | | | | | | | | | | | Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Alex Elder <aelder@sgi.com>
* | | / PM / Runtime: Correct documentation of pm_runtime_irq_safe()Rafael J. Wysocki2011-08-251-2/+1
| |_|/ |/| | | | | | | | | | | | | | | | | | | | | | | The description of pm_runtime_irq_safe() has to be updated to follow the code after commit 02b2677 (PM / Runtime: Allow _put_sync() from interrupts-disabled context). Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Kevin Hilman <khilman@ti.com>
* | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds2011-08-243-9/+132
|\ \ \ | |_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (29 commits) bridge: fix a possible net_device leak net: Documentation: RFC 2553bis is now RFC 3493 atm: br2684: Fix oops due to skb->dev being NULL ipv6: Fix ipv6_getsockopt for IPV6_2292PKTOPTIONS net: netdev-features.txt update to Documentation/networking/00-INDEX vlan: reset headers on accel emulation path forcedeth: call vlan_mode only if hw supports vlans via-velocity: remove non-tagged packet filtering bonding:reset backup and inactive flag of slave net_sched: fix port mirror/redirect stats reporting sit tunnels: propagate IPv6 transport class to IPv4 Type of Service gianfar: reduce stack usage in gianfar_ethtool.c net: minor update to Documentation/networking/scaling.txt net: add missing entries to Documentation/networking/00-INDEX gianfar: prevent buggy hw rx vlan tagging net: sh_eth: Fix build by forgot including linux/interrupt.h drivers/net/can/sja1000/plx_pci.c: eliminate double free usbnet/cdc_ncm: Don't use stack variables for DMA vmxnet3: Don't enable vlan filters in promiscuous mode. iwlagn: sysfs couldn't find the priv pointer ...
| * | net: Documentation: RFC 2553bis is now RFC 3493Geoffrey Thomas2011-08-221-1/+1
| | | | | | | | | | | | | | | Signed-off-by: Geoffrey Thomas <geofft@mit.edu> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | net: netdev-features.txt update to Documentation/networking/00-INDEXWillem de Bruijn2011-08-191-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Update netdev-features.txt entry in 00-INDEX to incorporate feedback by Michał Mirosław. v2: restored tabs that were inadvertently changed to spaces in v1. sorry for the error. Signed-off-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | net: minor update to Documentation/networking/scaling.txtWillem de Bruijn2011-08-141-8/+15
| | | | | | | | | | | | | | | | | | | | | | | | Incorporate last comments about hyperthreading, interrupt coalescing and the definition of cache domains into the network scaling document scaling.txt Signed-off-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | net: add missing entries to Documentation/networking/00-INDEXWillem de Bruijn2011-08-141-0/+116
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A simple janitor duty patch that adds a one sentence overview to 00-INDEX for all files that lacked it. - does not add entries for subdirectories - does not modify existing entries. Signed-off-by: David S. Miller <davem@davemloft.net>
* | | Merge branch 'for-linus' of git://git.kernel.dk/linux-blockLinus Torvalds2011-08-192-3/+77
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-linus' of git://git.kernel.dk/linux-block: (23 commits) Revert "cfq: Remove special treatment for metadata rqs." block: fix flush machinery for stacking drivers with differring flush flags block: improve rq_affinity placement blktrace: add FLUSH/FUA support Move some REQ flags to the common bio/request area allow blk_flush_policy to return REQ_FSEQ_DATA independent of *FLUSH xen/blkback: Make description more obvious. cfq-iosched: Add documentation about idling block: Make rq_affinity = 1 work as expected block: swim3: fix unterminated of_device_id table block/genhd.c: remove useless cast in diskstats_show() drivers/cdrom/cdrom.c: relax check on dvd manufacturer value drivers/block/drbd/drbd_nl.c: use bitmap_parse instead of __bitmap_parse bsg-lib: add module.h include cfq-iosched: Reduce linked group count upon group destruction blk-throttle: correctly determine sync bio loop: fix deadlock when sysfs and LOOP_CLR_FD race against each other loop: add BLK_DEV_LOOP_MIN_COUNT=%i to allow distros 0 pre-allocated loop devices loop: add management interface for on-demand device allocation loop: replace linked list of allocated devices with an idr index ...
| * | | cfq-iosched: Add documentation about idlingVivek Goyal2011-08-051-0/+71
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are always questions about why CFQ is idling on various conditions. Recent ones is Christoph asking again why to idle on REQ_NOIDLE. His assertion is that XFS is relying more and more on workqueues and is concerned that CFQ idling on IO from every workqueue will impact XFS badly. So he suggested that I add some more documentation about CFQ idling and that can provide more clarity on the topic and also gives an opprotunity to poke a hole in theory and lead to improvements. So here is my attempt at that. Any comments are welcome. Signed-off-by: Vivek Goyal <vgoyal@redhat.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
| * | | loop: add BLK_DEV_LOOP_MIN_COUNT=%i to allow distros 0 pre-allocated loop ↵Kay Sievers2011-07-311-3/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | devices Instead of unconditionally creating a fixed number of dead loop devices which need to be investigated by storage handling services, even when they are never used, we allow distros start with 0 loop devices and have losetup(8) and similar switch to the dynamic /dev/loop-control interface instead of searching /dev/loop%i for free devices. Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
* | | | Merge branch 'docs-move' of ↵Linus Torvalds2011-08-161-45/+44
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rdunlap/linux-docs * 'docs-move' of git://git.kernel.org/pub/scm/linux/kernel/git/rdunlap/linux-docs: Docs: MSI-HOWTO: MSI -> MSIs Docs: MSI-HOWTO: Insert a comma Docs: MSI-HOWTO: can -> could Docs: MSI-HOWTO: Use `unknown ...' rather than `... know about.' Docs: MSI-HOWTO: may -> might Docs: MSI-HOWTO: Insert a comma Docs: MSI-HOWTO: API -> function Docs: MSI-HOWTO: , -> ; Docs: MSI-HOWTO: Move a sentence to another paragraph Docs: MSI-HOWTO: Insert `that' Docs: MSI-HOWTO: Offset modifier with a comma, and insert `yet' for emphasis Docs: MSI-HOWTO: Put the `because' subordinate clause first Docs: MSI-HOWTO: Streamline some wording Docs: MSI-HOWTO: `asked for' -> `requested' Docs: MSI-HOWTO: Use present tense and streamline some wording Docs: MSI-HOWTO: Use the subjunctive, and change `can' to `may'
| * \ \ \ Merge branch 'docs/msi-3' of git://github.com/mfwitten/linux-2.6 into docs-moveRandy Dunlap2011-08-031-45/+44
| |\ \ \ \
| | * | | | Docs: MSI-HOWTO: MSI -> MSIsMichael Witten2011-08-021-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Michael Witten <mfwitten@gmail.com> Acked-by: Matthew Wilcox <matthew.r.wilcox@intel.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
| | * | | | Docs: MSI-HOWTO: Insert a commaMichael Witten2011-08-021-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Michael Witten <mfwitten@gmail.com> Acked-by: Matthew Wilcox <matthew.r.wilcox@intel.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
| | * | | | Docs: MSI-HOWTO: can -> couldMichael Witten2011-08-021-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Michael Witten <mfwitten@gmail.com> Acked-by: Matthew Wilcox <matthew.r.wilcox@intel.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
| | * | | | Docs: MSI-HOWTO: Use `unknown ...' rather than `... know about.'Michael Witten2011-08-021-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Michael Witten <mfwitten@gmail.com> Acked-by: Matthew Wilcox <matthew.r.wilcox@intel.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
| | * | | | Docs: MSI-HOWTO: may -> mightMichael Witten2011-08-021-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Michael Witten <mfwitten@gmail.com> Acked-by: Matthew Wilcox <matthew.r.wilcox@intel.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
| | * | | | Docs: MSI-HOWTO: Insert a commaMichael Witten2011-08-021-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Michael Witten <mfwitten@gmail.com> Acked-by: Matthew Wilcox <matthew.r.wilcox@intel.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
| | * | | | Docs: MSI-HOWTO: API -> functionMichael Witten2011-08-021-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Michael Witten <mfwitten@gmail.com> Acked-by: Matthew Wilcox <matthew.r.wilcox@intel.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
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