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2009-06-10KVM: Enable snooping control for supported hardwareSheng Yang
Memory aliases with different memory type is a problem for guest. For the guest without assigned device, the memory type of guest memory would always been the same as host(WB); but for the assigned device, some part of memory may be used as DMA and then set to uncacheable memory type(UC/WC), which would be a conflict of host memory type then be a potential issue. Snooping control can guarantee the cache correctness of memory go through the DMA engine of VT-d. [avi: fix build on ia64] Signed-off-by: Sheng Yang <sheng@linux.intel.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2009-06-10KVM: Make kvm header C++ friendlynathan binkert
Two things needed fixing: 1) g++ does not allow a named structure type within an anonymous union and 2) Avoid name clash between two padding fields within the same struct by giving them different names as is done elsewhere in the header. Signed-off-by: Nathan Binkert <nate@binkert.org> Signed-off-by: Avi Kivity <avi@redhat.com>
2009-06-10KVM: Fix interrupt unhalting a vcpu when it shouldn'tGleb Natapov
kvm_vcpu_block() unhalts vpu on an interrupt/timer without checking if interrupt window is actually opened. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2009-06-10KVM: Device assignment framework reworkSheng Yang
After discussion with Marcelo, we decided to rework device assignment framework together. The old problems are kernel logic is unnecessary complex. So Marcelo suggest to split it into a more elegant way: 1. Split host IRQ assign and guest IRQ assign. And userspace determine the combination. Also discard msi2intx parameter, userspace can specific KVM_DEV_IRQ_HOST_MSI | KVM_DEV_IRQ_GUEST_INTX in assigned_irq->flags to enable MSI to INTx convertion. 2. Split assign IRQ and deassign IRQ. Import two new ioctls: KVM_ASSIGN_DEV_IRQ and KVM_DEASSIGN_DEV_IRQ. This patch also fixed the reversed _IOR vs _IOW in definition(by deprecated the old interface). [avi: replace homemade bitcount() by hweight_long()] Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Sheng Yang <sheng@linux.intel.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2009-06-10KVM: APIC: get rid of deliver_bitmaskGleb Natapov
Deliver interrupt during destination matching loop. Signed-off-by: Gleb Natapov <gleb@redhat.com> Acked-by: Xiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2009-06-10KVM: consolidate ioapic/ipi interrupt delivery logicGleb Natapov
Use kvm_apic_match_dest() in kvm_get_intr_delivery_bitmask() instead of duplicating the same code. Use kvm_get_intr_delivery_bitmask() in apic_send_ipi() to figure out ipi destination instead of reimplementing the logic. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2009-06-10KVM: ioapic/msi interrupt delivery consolidationGleb Natapov
ioapic_deliver() and kvm_set_msi() have code duplication. Move the code into ioapic_deliver_entry() function and call it from both places. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2009-06-10KVM: declare ioapic functions only on affected hardwareChristian Borntraeger
Since "KVM: Unify the delivery of IOAPIC and MSI interrupts" I get the following warnings: CC [M] arch/s390/kvm/kvm-s390.o In file included from arch/s390/kvm/kvm-s390.c:22: include/linux/kvm_host.h:357: warning: 'struct kvm_ioapic' declared inside parameter list include/linux/kvm_host.h:357: warning: its scope is only this definition or declaration, which is probably not what you want This patch limits IOAPIC functions for architectures that have one. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2009-06-10KVM: Enable MSI-X for KVM assigned deviceSheng Yang
This patch finally enable MSI-X. What we need for MSI-X: 1. Intercept one page in MMIO region of device. So that we can get guest desired MSI-X table and set up the real one. Now this have been done by guest, and transfer to kernel using ioctl KVM_SET_MSIX_NR and KVM_SET_MSIX_ENTRY. 2. Information for incoming interrupt. Now one device can have more than one interrupt, and they are all handled by one workqueue structure. So we need to identify them. The previous patch enable gsi_msg_pending_bitmap get this done. 3. Mapping from host IRQ to guest gsi as well as guest gsi to real MSI/MSI-X message address/data. We used same entry number for the host and guest here, so that it's easy to find the correlated guest gsi. What we lack for now: 1. The PCI spec said nothing can existed with MSI-X table in the same page of MMIO region, except pending bits. The patch ignore pending bits as the first step (so they are always 0 - no pending). 2. The PCI spec allowed to change MSI-X table dynamically. That means, the OS can enable MSI-X, then mask one MSI-X entry, modify it, and unmask it. The patch didn't support this, and Linux also don't work in this way. 3. The patch didn't implement MSI-X mask all and mask single entry. I would implement the former in driver/pci/msi.c later. And for single entry, userspace should have reposibility to handle it. Signed-off-by: Sheng Yang <sheng@linux.intel.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2009-06-10KVM: Add MSI-X interrupt injection logicSheng Yang
We have to handle more than one interrupt with one handler for MSI-X. Avi suggested to use a flag to indicate the pending. So here is it. Signed-off-by: Sheng Yang <sheng@linux.intel.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2009-06-10KVM: Ioctls for init MSI-X entrySheng Yang
Introduce KVM_SET_MSIX_NR and KVM_SET_MSIX_ENTRY two ioctls. This two ioctls are used by userspace to specific guest device MSI-X entry number and correlate MSI-X entry with GSI during the initialization stage. MSI-X should be well initialzed before enabling. Don't support change MSI-X entry number for now. Signed-off-by: Sheng Yang <sheng@linux.intel.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2009-06-10KVM: Unify the delivery of IOAPIC and MSI interruptsSheng Yang
Signed-off-by: Sheng Yang <sheng@linux.intel.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2009-06-10KVM: Split IOAPIC structureSheng Yang
Prepared for reuse ioapic_redir_entry for MSI. Signed-off-by: Sheng Yang <sheng@linux.intel.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2009-06-10Merge branch 'topic/pcm-jiffies-check' into for-linusTakashi Iwai
* topic/pcm-jiffies-check: ALSA: pcm - A helper function to compose PCM stream name for debug prints ALSA: pcm - Fix update of runtime->hw_ptr_interrupt ALSA: pcm - Fix a typo in hw_ptr update check ALSA: PCM midlevel: lower jiffies check margin using runtime->delay value ALSA: PCM midlevel: Do not update hw_ptr_jiffies when hw_ptr is not changed ALSA: PCM midlevel: introduce mask for xrun_debug() macro ALSA: PCM midlevel: improve fifo_size handling
2009-06-10Merge branch 'topic/pcm-delay' into for-linusTakashi Iwai
* topic/pcm-delay: ALSA: usbaudio - Add delay account ALSA: Add extra delay count in PCM
2009-06-10Merge branch 'topic/lx6464es' into for-linusTakashi Iwai
* topic/lx6464es: ALSA: Add missing description of lx6464es to ALSA-Configuration.txt ALSA: lx6464es - Disable lx_message_send() ALSA: lx6464es - Use snd_card_create() ALSA: lx6464es - driver for the digigram lx6464es interface
2009-06-10Merge branch 'topic/div64-cleanup' into for-linusTakashi Iwai
* topic/div64-cleanup: ALSA: Clean up 64bit division functions
2009-06-10Merge branch 'topic/ctxfi' into for-linusTakashi Iwai
* topic/ctxfi: (35 commits) ALSA: ctxfi - Clear PCM resources at hw_params and hw_free ALSA: ctxfi - Check the presence of SRC instance in PCM pointer callbacks ALSA: ctxfi - Add missing start check in atc_pcm_playback_start() ALSA: ctxfi - Add use_system_timer module option ALSA: ctxfi - Fix wrong model id for UAA ALSA: ctxfi - Clean up probe routines ALSA: ctxfi - Fix / clean up hw20k2 chip code ALSA: ctxfi - Fix possible buffer pointer overrun ALSA: ctxfi - Remove useless initializations and cast ALSA: ctxfi - Fix DMA mask for emu20k2 chip ALSA: ctxfi - Make volume controls more intuitive ALSA: ctxfi - Optimize the native timer handling using wc counter ALSA: ctxfi - Add missing inclusion of linux/math64.h ALSA: ctxfi - Set device 0 for mixer control elements ALSA: ctxfi - Clean up / optimize ALSA: ctxfi - Set periods_min to 2 ALSA: ctxfi - Use native timer interrupt on emu20k1 ALSA: ctxfi - Fix previous fix for 64bit DMA ALSA: ctxfi - Fix endian-dependent codes ALSA: ctxfi - Allow 64bit DMA ...
2009-06-10Merge branch 'topic/cleanup' into for-linusTakashi Iwai
* topic/cleanup: ALSA: Remove deprecated include/sound/driver.h ALSA: Remove deprecated snd_card_new()
2009-06-10Merge branch 'topic/caiaq' into for-linusTakashi Iwai
* topic/caiaq: ALSA: snd_usb_caiaq: bump version number ALSA: snd_usb_caiaq: give better shortname ALSA: Core - add snd_card_set_id() function ALSA: snd_usb_caiaq: give better longname ALSA: snd_usb_caiaq: use strlcpy ALSA: snd_usb_caiaq: clean whitespaces
2009-06-10Merge branch 'topic/asoc' into for-linusTakashi Iwai
* topic/asoc: (135 commits) ASoC: Apostrophe patrol ASoC: codec tlv320aic23 fix bogus divide by 0 message ASoC: fix NULL pointer dereference in soc_suspend() ASoC: Fix build error in twl4030.c ASoC: SSM2602: assign last substream to the master when shutting down ASoC: Blackfin: document how anomaly 05000250 is handled ASoC: Blackfin: set the transfer size according the ac97_frame size ASoC: SSM2602: remove unsupported sample rates ASoC: TWL4030: Check the interface format for 4 channel mode ASoC: TWL4030: Use reg_cache in twl4030_init_chip ASoC: Initialise dev for the dummy S/PDIF DAI ASoC: Add dummy S/PDIF codec support ASoC: correct print specifiers for unsigneds ASoC: Modify mpc5200 AC97 driver to use V9 of spin_event_timeout() ASoC: Switch FSL SSI DAI over to symmetric_rates ASoC: Mark MPC5200 AC97 as BROKEN until PowerPC merge issues are resolved ASoC: Fabric bindings for STAC9766 on the Efika ASoC: Support for AC97 on Phytec pmc030 base board. ASoC: AC97 driver for mpc5200 ASoC: Main rewite of the mpc5200 audio DMA code ...
2009-06-09rfkill: include err.hJohannes Berg
Since we use ERR_PTR and similar macros, we need to include linux/err.h. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-09Improve vmlinux.lds.h support for arch specific linker scriptsSam Ravnborg
To support alingment of the individual architecture specific linker scripts provide a set of general definitions in vmlinux.lds.h With these definitions applied the diverse linekr scripts can be reduced in line count and their readability are improved - IMO. A sample linker script is included to give the preferred order of the sections for the architectures that do not have any special requirments. These definitions are also a first step towards eventual support for -ffunction-sections. The definitions makes it much easier to do a global renaming of section names - but the main purpose is to clean up the linker scripts. Tim Aboot has provided a lot of inputs to improve the definitions - all faults are mine. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Tim Abbott <tabbott@mit.edu>
2009-06-09initconst adjustmentsJan Beulich
- add .init.rodata to INIT_DATA, and group all initconst flavors together - move strings generated from __setup_param() into .init.rodata - add .*init.rodata to modpost's sets of init sections - make modpost warn about references between meminit and cpuinit as well as memexit and cpuexit sections (as CPU and memory hotplug are independently selectable features) Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-06-09tracing: add trace_seq_vprint interfaceSteven Rostedt
The code to update the print formats for events requires a vprintf format in the trace_seq. This patch adds that interface. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2009-06-09tracing: fix the block trace points print sizeSteven Rostedt
The sector field is either u64 or unsigned long depending on the arch. This patch casts the sector to unsigned long long to prevent the printf warnings. [ Impact: remove compile warnings ] Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2009-06-09drm/i915: Enable probe on new chipsetZhenyu Wang
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com> Signed-off-by: Eric Anholt <eric@anholt.net>
2009-06-09tracing/events: convert block trace points to TRACE_EVENT()Li Zefan
TRACE_EVENT is a more generic way to define tracepoints. Doing so adds these new capabilities to this tracepoint: - zero-copy and per-cpu splice() tracing - binary tracing without printf overhead - structured logging records exposed under /debug/tracing/events - trace events embedded in function tracer output and other plugins - user-defined, per tracepoint filter expressions ... Cons: - no dev_t info for the output of plug, unplug_timer and unplug_io events. no dev_t info for getrq and sleeprq events if bio == NULL. no dev_t info for rq_abort,...,rq_requeue events if rq->rq_disk == NULL. This is mainly because we can't get the deivce from a request queue. But this may change in the future. - A packet command is converted to a string in TP_assign, not TP_print. While blktrace do the convertion just before output. Since pc requests should be rather rare, this is not a big issue. - In blktrace, an event can have 2 different print formats, but a TRACE_EVENT has a unique format, which means we have some unused data in a trace entry. The overhead is minimized by using __dynamic_array() instead of __array(). I've benchmarked the ioctl blktrace vs the splice based TRACE_EVENT tracing: dd dd + ioctl blktrace dd + TRACE_EVENT (splice) 1 7.36s, 42.7 MB/s 7.50s, 42.0 MB/s 7.41s, 42.5 MB/s 2 7.43s, 42.3 MB/s 7.48s, 42.1 MB/s 7.43s, 42.4 MB/s 3 7.38s, 42.6 MB/s 7.45s, 42.2 MB/s 7.41s, 42.5 MB/s So the overhead of tracing is very small, and no regression when using those trace events vs blktrace. And the binary output of TRACE_EVENT is much smaller than blktrace: # ls -l -h -rw-r--r-- 1 root root 8.8M 06-09 13:24 sda.blktrace.0 -rw-r--r-- 1 root root 195K 06-09 13:24 sda.blktrace.1 -rw-r--r-- 1 root root 2.7M 06-09 13:25 trace_splice.out Following are some comparisons between TRACE_EVENT and blktrace: plug: kjournald-480 [000] 303.084981: block_plug: [kjournald] kjournald-480 [000] 303.084981: 8,0 P N [kjournald] unplug_io: kblockd/0-118 [000] 300.052973: block_unplug_io: [kblockd/0] 1 kblockd/0-118 [000] 300.052974: 8,0 U N [kblockd/0] 1 remap: kjournald-480 [000] 303.085042: block_remap: 8,0 W 102736992 + 8 <- (8,8) 33384 kjournald-480 [000] 303.085043: 8,0 A W 102736992 + 8 <- (8,8) 33384 bio_backmerge: kjournald-480 [000] 303.085086: block_bio_backmerge: 8,0 W 102737032 + 8 [kjournald] kjournald-480 [000] 303.085086: 8,0 M W 102737032 + 8 [kjournald] getrq: kjournald-480 [000] 303.084974: block_getrq: 8,0 W 102736984 + 8 [kjournald] kjournald-480 [000] 303.084975: 8,0 G W 102736984 + 8 [kjournald] bash-2066 [001] 1072.953770: 8,0 G N [bash] bash-2066 [001] 1072.953773: block_getrq: 0,0 N 0 + 0 [bash] rq_complete: konsole-2065 [001] 300.053184: block_rq_complete: 8,0 W () 103669040 + 16 [0] konsole-2065 [001] 300.053191: 8,0 C W 103669040 + 16 [0] ksoftirqd/1-7 [001] 1072.953811: 8,0 C N (5a 00 08 00 00 00 00 00 24 00) [0] ksoftirqd/1-7 [001] 1072.953813: block_rq_complete: 0,0 N (5a 00 08 00 00 00 00 00 24 00) 0 + 0 [0] rq_insert: kjournald-480 [000] 303.084985: block_rq_insert: 8,0 W 0 () 102736984 + 8 [kjournald] kjournald-480 [000] 303.084986: 8,0 I W 102736984 + 8 [kjournald] Changelog from v2 -> v3: - use the newly introduced __dynamic_array(). Changelog from v1 -> v2: - use __string() instead of __array() to minimize the memory required to store hex dump of rq->cmd(). - support large pc requests. - add missing blk_fill_rwbs_rq() in block_rq_requeue TRACE_EVENT. - some cleanups. Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> LKML-Reference: <4A2DF669.5070905@cn.fujitsu.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2009-06-09[SCSI] iscsi class: Add new NETLINK_ISCSI messages for cnic/bnx2i driver.Michael Chan
Add ISCSI_NETLINK messages for iSCSI NICs to get information such as path from userspace. Original iscsid messages are now always sent as multicast to group 1. The new messages are sent to group 2. The multicast changes were made by Mike Christie. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: Benjamin Li <benli@broadcom.com> Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-06-09netfilter: xt_socket: added new revision of the 'socket' match supporting flagsLaszlo Attila Toth
If the XT_SOCKET_TRANSPARENT flag is set, enabled 'transparent' socket option is required for the socket to be matched. Signed-off-by: Laszlo Attila Toth <panther@balabit.hu> Signed-off-by: Patrick McHardy <kaber@trash.net>
2009-06-09cpumask: introduce zalloc_cpumask_varYinghai Lu
So can get cpumask_var with cpumask_clear Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2009-06-09Add serial number support for virtio_blk, V4ajohn cooper
This patch extracts the opaque data from pci i/o region 0 via the added VIRTIO_BLK_F_IDENTIFY field. By convention this data takes the form of that returned by an ATA IDENTIFY DEVICE command, however the driver (except for structure size) makes no interpretation of the data. The structure data is copied wholesale to userspace via a HDIO_GET_IDENTITY ioctl command (eg: hdparm -i <dev>). Signed-off-by: john cooper <john.cooper@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2009-06-09e1000e: Expose MDI-X status via ethtool changeChaitanya Lala
Ethtool is a standard way of getting information about ethernet interfaces. We enhance ethtool kernel interface & e1000e to make the MDI-X status readable via ethtool in userspace. Signed-off-by: Chaitanya Lala <clala@riverbed.com> Signed-off-by: Arthur Jones <ajones@riverbed.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-09net: add NL802154 interface for configuration of 802.15.4 devicesSergey Lapin
Add a netlink interface for configuration of IEEE 802.15.4 device. Also this interface specifies events notification sent by devices towards higher layers. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: Sergey Lapin <slapin@ossfans.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-09net: add IEEE 802.15.4 socket family implementationSergey Lapin
Add support for communication over IEEE 802.15.4 networks. This implementation is neither certified nor complete, but aims to that goal. This commit contains only the socket interface for communication over IEEE 802.15.4 networks. One can either send RAW datagrams or use SOCK_DGRAM to encapsulate data inside normal IEEE 802.15.4 packets. Configuration interface, drivers and software MAC 802.15.4 implementation will follow. Initial implementation was done by Maxim Gorbachyov, Maxim Osipov and Pavel Smolensky as a research project at Siemens AG. Later the stack was heavily reworked to better suit the linux networking model, and is now maitained as an open project partially sponsored by Siemens. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: Sergey Lapin <slapin@ossfans.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-09Add constants for the ieee 802.15.4 stackSergey Lapin
IEEE 802.15.4 stack requires several constants to be defined/adjusted. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: Sergey Lapin <slapin@ossfans.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-09pkt_sched: Change PSCHED_SHIFT from 10 to 6Jarek Poplawski
Change PSCHED_SHIFT from 10 to 6 to increase schedulers time resolution. This will increase 16x a number of (internal) ticks per nanosecond, and is needed to improve accuracy of schedulers based on rate tables, like HTB, TBF or CBQ, with rates above 100Mbit. It is assumed this change is safe for 32bit accounting of time diffs up to 2 minutes, which should be enough for common use (extremely low rate values may overflow, so get inaccurate instead). To make full use of this change an updated iproute2 will be needed. (But using older iproute2 should be safe too.) This change breaks ticks - microseconds similarity, so some minor code fixes might be needed. It is also planned to change naming adequately eg. to PSCHED_TICKS2NS() etc. in the near future. Reported-by: Antonio Almeida <vexwek@gmail.com> Tested-by: Antonio Almeida <vexwek@gmail.com> Signed-off-by: Jarek Poplawski <jarkao2@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-09pkt_sched: Use PSCHED_SHIFT in PSCHED time conversionJarek Poplawski
Use PSCHED_SHIFT constant instead of '10' in PSCHED_US2NS() and PSCHED_NS2US() macros to enable changing this value later. Additionally use PSCHED_SHIFT in sch_hfsc SM_SHIFT and ISM_SHIFT definitions. This part of the patch is based on feedback from Patrick McHardy <kaber@trash.net>. Reported-by: Antonio Almeida <vexwek@gmail.com> Tested-by: Antonio Almeida <vexwek@gmail.com> Signed-off-by: Jarek Poplawski <jarkao2@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-09CUSE: implement CUSE - Character device in UserspaceTejun Heo
CUSE enables implementing character devices in userspace. With recent additions of ioctl and poll support, FUSE already has most of what's necessary to implement character devices. All CUSE has to do is bonding all those components - FUSE, chardev and the driver model - nicely. When client opens /dev/cuse, kernel starts conversation with CUSE_INIT. The client tells CUSE which device it wants to create. As the previous patch made fuse_file usable without associated fuse_inode, CUSE doesn't create super block or inodes. It attaches fuse_file to cdev file->private_data during open and set ff->fi to NULL. The rest of the operation is almost identical to FUSE direct IO case. Each CUSE device has a corresponding directory /sys/class/cuse/DEVNAME (which is symlink to /sys/devices/virtual/class/DEVNAME if SYSFS_DEPRECATED is turned off) which hosts "waiting" and "abort" among other things. Those two files have the same meaning as the FUSE control files. The only notable lacking feature compared to in-kernel implementation is mmap support. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
2009-06-09netdevice.h: Use frag list abstraction interfaces.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-09skbuff: Add frag list abstraction interfaces.David S. Miller
With the hope that these can be used to eliminate direct references to the frag list implementation. Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-09Revert "block: Fix bounce limit setting in DM"Jens Axboe
This reverts commit a05c0205ba031c01bba33a21bf0a35920eb64833. DM doesn't need to access the bounce_pfn directly. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2009-06-09Merge branch 'master' into nextJames Morris
2009-06-08bluetooth: Kill skb_frags_no(), unused.David S. Miller
Furthermore, it twiddles with the details of SKB list handling directly, which we're trying to eliminate. Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-08ring-buffer: pass in lockdep class key for reader_lockPeter Zijlstra
On Sun, 7 Jun 2009, Ingo Molnar wrote: > Testing tracer sched_switch: <6>Starting ring buffer hammer > PASSED > Testing tracer sysprof: PASSED > Testing tracer function: PASSED > Testing tracer irqsoff: > ============================================= > PASSED > Testing tracer preemptoff: PASSED > Testing tracer preemptirqsoff: [ INFO: possible recursive locking detected ] > PASSED > Testing tracer branch: 2.6.30-rc8-tip-01972-ge5b9078-dirty #5760 > --------------------------------------------- > rb_consumer/431 is trying to acquire lock: > (&cpu_buffer->reader_lock){......}, at: [<c109eef7>] ring_buffer_reset_cpu+0x37/0x70 > > but task is already holding lock: > (&cpu_buffer->reader_lock){......}, at: [<c10a019e>] ring_buffer_consume+0x7e/0xc0 > > other info that might help us debug this: > 1 lock held by rb_consumer/431: > #0: (&cpu_buffer->reader_lock){......}, at: [<c10a019e>] ring_buffer_consume+0x7e/0xc0 The ring buffer is a generic structure, and can be used outside of ftrace. If ftrace traces within the use of the ring buffer, it can produce false positives with lockdep. This patch passes in a static lock key into the allocation of the ring buffer, so that different ring buffers will have their own lock class. Reported-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1244477919.13761.9042.camel@twins> [ store key in ring buffer descriptor ] Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2009-06-09Add MAX17040 Fuel Gauge driverMinkyu Kang
The MAX17040 is a I2C interfaced Fuel Gauge systems for lithium-ion batteries This patch adds support the MAX17040 Fuel Gauge Signed-off-by: Minkyu Kang <mk7.kang@samsung.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
2009-06-08[SCSI] net, libfcoe: Add the FCoE Initialization Protocol ethertypeJoe Eykholt
FIP is the FCoE Initialization Protocol and this patch adds the protocol ethertype to the kernel's list of ethertypes. Signed-off-by: Joe Eykholt <jeykholt@cisco.com> Signed-off-by: Robert Love <robert.w.love@intel.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-06-08Merge branch 'for-rmk' of git://git.marvell.com/orion into develRussell King
2009-06-08Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
* master.kernel.org:/home/rmk/linux-2.6-arm: [ARM] 5543/1: arm: serial amba: add missing declaration in serial.h [ARM] pxa: fix pxa27x_udc default pullup GPIO [ARM] pxa/imote2: fix UCAM sensor board ADC model number mx[23]: don't put clock lookups in __initdata fix oops when using console=ttymxcN with N > 0 [ARM] ARMv7 errata: only apply fixes when running on applicable CPU [ARM] 5534/1: kmalloc must return a cache line aligned buffer
2009-06-08netfilter: passive OS fingerprint xtables matchEvgeniy Polyakov
Passive OS fingerprinting netfilter module allows to passively detect remote OS and perform various netfilter actions based on that knowledge. This module compares some data (WS, MSS, options and it's order, ttl, df and others) from packets with SYN bit set with dynamically loaded OS fingerprints. Fingerprint matching rules can be downloaded from OpenBSD source tree or found in archive and loaded via netfilter netlink subsystem into the kernel via special util found in archive. Archive contains library file (also attached), which was shipped with iptables extensions some time ago (at least when ipt_osf existed in patch-o-matic). Following changes were made in this release: * added NLM_F_CREATE/NLM_F_EXCL checks * dropped _rcu list traversing helpers in the protected add/remove calls * dropped unneded structures, debug prints, obscure comment and check Fingerprints can be downloaded from http://www.openbsd.org/cgi-bin/cvsweb/src/etc/pf.os or can be found in archive Example usage: -d switch removes fingerprints Please consider for inclusion. Thank you. Passive OS fingerprint homepage (archives, examples): http://www.ioremap.net/projects/osf Signed-off-by: Evgeniy Polyakov <zbr@ioremap.net> Signed-off-by: Patrick McHardy <kaber@trash.net>
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