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2007-07-10xip sendfile removalCarsten Otte
This patch removes xip_file_sendfile, the sendfile implementation for xip without replacement. Those customers that use xip on s390 are not using sendfile() as far as we know, and so far s390 is the only platform this could potentially be used on so far. Having sendfile is not a popular feature for execute in place file systems, however we have a working implementation of splice_read() based on fs/splice.c if anyone asks for it. At this point in time, it does not seem preferable to merge splice_read() for xip because it causes extra maintenence effort due to code duplication and it requires struct page behind the xip memory segment. We'd like to get rid of that in favor of supporting flash based embedded platforms (Monta Vista work) soon. Signed-off-by: Carsten Otte <cotte@de.ibm.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-10splice: completely document external interface with kerneldocJens Axboe
Also add fs/splice.c as a kerneldoc target with a smaller blurb that should be expanded to better explain the overview of splice. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-10sendfile: remove bad_sendfile() from bad_file_opsJens Axboe
do_sendfile() prefers splice over sendfile, so it should not trigger (directly, at least). Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-10shmem: convert to using splice instead of sendfile()Hugh Dickins
Remove shmem_file_sendfile and resurrect shmem_readpage, as used by tmpfs to support loop and sendfile in 2.4 and 2.5. Now tmpfs can support splice, loop and sendfile in the simplest way, using generic_file_splice_read and generic_file_splice_write (with the aid of shmem_prepare_write). We could make some efficiency tweaks later, if there's a real need; but this is stable and works well as is. Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-10relay: use splice_to_pipe() instead of open-coding the pipe loopJens Axboe
It cleans up the relay splice implementation a lot, and gets rid of a lot of internal pipe knowledge that should not be in there. Plus fixes for padding and partial first page (and lots more) from Tom Zanussi. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-10pipe: allow passing around of ops private pointerJens Axboe
relay needs this for proper consumption handling, and the network receive support needs it as well to lookup the sk_buff on pipe release. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-10splice: divorce the splice structure/function definitions from the pipe headerJens Axboe
We need to move even more stuff into the header so that folks can use the splice_to_pipe() implementation instead of open-coding a lot of pipe knowledge (see relay implementation), so move to our own header file finally. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-10splice: relay supportTom Zanussi
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-10sendfile: convert nfsd to splice_direct_to_actor()Jens Axboe
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-10sendfile: convert nfs to using splice_read()Jens Axboe
Acked-by: Trond Myklebust <trond.myklebust@fys.uio.no> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-10loop: convert to using splice_direct_to_actor() instead of sendfile()Jens Axboe
This gets rid of the dependency on ->sendfile() for receiving data and converts loop to ->splice_read() instead. Also includes an IV offset fix from Hugh Dickins. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-10splice: add void cookie to the actor dataJens Axboe
We need that for passing driver private info. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-10sendfile: kill generic_file_sendfile()Jens Axboe
It's no longer used. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-10sendfile: remove .sendfile from filesystems that use generic_file_sendfile()Jens Axboe
They can use generic_file_splice_read() instead. Since sys_sendfile() now prefers that, there should be no change in behaviour. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-10sys_sendfile: switch to using ->splice_read, if availableJens Axboe
This patch makes sendfile prefer to use ->splice_read(), if it's available in the file_operations structure. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-10vmsplice: add vmsplice-to-user supportJens Axboe
A bit of a cheat, it actually just copies the data to userspace. But this makes the interface nice and symmetric and enables people to build on splice, with room for future improvement in performance. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-10splice: abstract out actor dataJens Axboe
For direct splicing (or private splicing), the output may not be a file. So abstract out the handling into a specified actor function and put the data in the splice_desc structure earlier, so we can build on top of that. This is the first step in better splice handling for drivers, and also for implementing vmsplice _to_ user memory. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6: (31 commits) firewire: fw-sbp2: fix DMA mapping of management ORBs firewire: fw-sbp2: fix DMA mapping of command ORBs firewire: fw-sbp2: fix DMA mapping of S/G tables firewire: fw-sbp2: add a boundary check firewire: fw-sbp2: correctly align page tables firewire: fw-sbp2: memset wants string.h firewire: fw-sbp2: use correct speed in sbp2_agent_reset firewire: fw-sbp2: correctly dereference by container_of firewire: Document userspace ioctl interface. firewire: fw-sbp2: implement nonexclusive login firewire: fw-sbp2: let SCSI shutdown commands through before logout firewire: fw-sbp2: implement max sectors limit for some old bridges firewire: simplify a struct type firewire: support S100B...S400B and link slower than PHY firewire: optimize gap count with 1394b leaf nodes firewire: remove unused macro firewire: missing newline in printk firewire: fw-sbp2: remove unused struct member ieee1394: remove old isochronous ABI ieee1394: sbp2: change some module parameters from int to bool ...
2007-07-09Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: HID: handle cases of volume knobs generating relative values HID: Logitech keyboard 0xc311 needs reset leds quirk HID: support for logitech cordless desktop LX500 special mapping HID: fix autocentering of PID devices HID: separate quirks for report descriptor fixup HID: Add NOGET quirk for all NCR devices HID: support for Petalynx Maxter remote control HID: fix mismatch between hid-input HUT find/search mapping and the HUT HID: support for Gameron dual psx adaptor USB HID: avoid flush_scheduled_work() HID: Use menuconfig objects HID: force hid-input for Microsoft SideWinder GameVoice device HID: input mapping for Chicony KU-0418 tactical pad HID: make debugging output runtime-configurable
2007-07-09Merge branch 'upstream-linus' of ↵Linus Torvalds
master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6 * 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6: (75 commits) Ethernet driver for EISA only SNI RM200/RM400 machines Extract chip specific code out of lasi_82596.c ehea: Whitespace cleanup pasemi_mac: Fix TX interrupt threshold spidernet: Replace literal with const r8169: perform RX config change after mac filtering r8169: mac address change support r8169: display some extra debug information during startup r8169: add endianess annotations to [RT]xDesc r8169: align the IP header when there is no DMA constraint r8169: add bit description for the TxPoll register r8169: cleanup r8169: remove the media option r8169: small 8101 comment r8169: confusion between hardware and IP header alignment r8169: merge with version 8.001.00 of Realtek's r8168 driver r8169: merge with version 6.001.00 of Realtek's r8169 driver r8169: prettify mac_version r8169: populate the hw_start handler for the 8110 r8169: populate the hw_start handler for the 8168 ...
2007-07-10firewire: fw-sbp2: fix DMA mapping of management ORBsStefan Richter
The CPU must not touch the buffer after it was DMA-mapped. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by: Kristian Høgsberg <krh@redhat.com>
2007-07-10firewire: fw-sbp2: fix DMA mapping of command ORBsStefan Richter
The CPU must not touch the buffer after it was DMA-mapped. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by: Kristian Høgsberg <krh@redhat.com>
2007-07-10firewire: fw-sbp2: fix DMA mapping of S/G tablesStefan Richter
- The CPU must not touch the buffer after it was DMA-mapped. - The size argument of dma_unmap_single(...page_table...) was bogus. - Move a comment closer to the code to which it refers to. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by: Kristian Høgsberg <krh@redhat.com>
2007-07-10firewire: fw-sbp2: add a boundary checkStefan Richter
Add rudimentary check for the case that the page table overflows due to merging of s/g elements by the IOMMU. This would have lead to overwriting of arbitrary memory. After this change I expect that an offending command will be unsuccessfully retried until the scsi_device is taken offline by SCSI core. It's a border case and not worth to implement a recovery strategy. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Acked-by: Kristian Høgsberg <krh@redhat.com>
2007-07-10firewire: fw-sbp2: correctly align page tablesStefan Richter
This is required per SBP-2 clause 5.2. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Acked-by: Kristian Høgsberg <krh@redhat.com>
2007-07-10firewire: fw-sbp2: memset wants string.hStefan Richter
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Acked-by: Kristian Høgsberg <krh@redhat.com>
2007-07-10firewire: fw-sbp2: use correct speed in sbp2_agent_resetStefan Richter
noticed by Jay Fenlason Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Acked-by: Kristian Høgsberg <krh@redhat.com>
2007-07-10firewire: fw-sbp2: correctly dereference by container_ofJay Fenlason
Replace a cast with a container_of(). As long as nobody reorders the structure elements, they do the same thing, but container_of() is more readable. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> (added complete_command_orb) Acked-by: Kristian Høgsberg <krh@redhat.com>
2007-07-10firewire: Document userspace ioctl interface.Kristian Høgsberg
The isochronous packet format is still not documented, but this is a good first step. Signed-off-by: Kristian Høgsberg <krh@redhat.com> Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> (format, wording)
2007-07-10firewire: fw-sbp2: implement nonexclusive loginStefan Richter
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by: Kristian Høgsberg <krh@redhat.com>
2007-07-10firewire: fw-sbp2: let SCSI shutdown commands through before logoutStefan Richter
This affects of course only the "soft shutdown" case, e.g. "modprobe -r firewire-sbp2", while it doesn't matter for hot unplug. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by: Kristian Høgsberg <krh@redhat.com>
2007-07-10firewire: fw-sbp2: implement max sectors limit for some old bridgesStefan Richter
This currently only affects one bridge in the hardwired blacklist. I don't own one of those, hence haven't tested it. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-07-10firewire: simplify a struct typeStefan Richter
cleanup after "firewire: support S100B...S400B and link slower than PHY" Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by: Kristian Høgsberg <krh@redhat.com>
2007-07-10firewire: support S100B...S400B and link slower than PHYStefan Richter
Use a speed probe to determine the speed over 1394b buses and of nodes which report a link speed less than their PHY speed. Log the effective maximum speed of newly created nodes in dmesg. Also, read the config ROM (except bus info block) at the maximum speed rather than S100. This isn't a real optimization though because we still only use quadlet read requests for the entire ROM. The patch also adds support for S1600 and S3200, although such hardware does not exist yet. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by: Kristian Høgsberg <krh@redhat.com>
2007-07-10firewire: optimize gap count with 1394b leaf nodesStefan Richter
Table-based gap count optimization cannot be used if 1394b repeater PHYs are present. But it does work with 1394b leaf nodes. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by: Kristian Høgsberg <krh@redhat.com>
2007-07-10firewire: remove unused macroStefan Richter
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-07-10firewire: missing newline in printkStefan Richter
Also remove some errno printouts which will be shown by infrastructure code anyway. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-07-10firewire: fw-sbp2: remove unused struct memberStefan Richter
cleanup after support of single-buffer requests was dropped Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by: Kristian Hoegsberg <krh@redhat.com>
2007-07-10ieee1394: remove old isochronous ABIStefan Richter
Based on patch "the scheduled removal of RAW1394_REQ_ISO_{SEND,LISTEN}" from Adrian Bunk, November 20 2006. This patch also removes the underlying facilities in ohci1394 and disables them in pcilynx. That is, hpsb_host_driver.devctl() and hpsb_host_driver.transmit_packet() are no longer used for iso reception and transmission. Since video1394 and dv1394 only work with ohci1394 and raw1394's rawiso interface has never been implemented in pcilynx, pcilynx is now no longer useful for isochronous applications. raw1394 will still handle the request types but will complete the requests with errors that indicate API version conflicts. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-07-10ieee1394: sbp2: change some module parameters from int to boolStefan Richter
This is upwards compatible, except that integer values other than 0 or 1 are no longer accepted. But values like "Y", "N", "no", "nnoooh!" work now. Also, improve a comment on the serialize_io parameter and make the ORB_SET_EXCLUSIVE macro ultra-safe. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-07-10ieee1394: first minimal NUMA awarenessStefan Richter
Association of a host device with a node on NUMA machines optimizes allocations of skbs given from the networking stack to eth1394. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-07-10ieee1394: eth1394: revert parent device to that in 2.6.20Stefan Richter
After ieee1394 was converted away from class_device like the networking subsystem was already in 2.6.21, eth1394's device may point to the fw-host device as its parent again like in 2.6.20. This affects userspace tools which examine the sysfs representation of eth1394's device. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-07-10ieee1394: nodemgr: parallelize between several hostsStefan Richter
Remove the global nodemgr_serialize mutex which enclosed most of the host thread event loop. This allows for parallelism between several host adapter cards. Properly serialize the driver hooks .update(), .suspend(), .resume(), and .remove() by means of device->sem. These hooks can be called from outside the host threads' contexts. Get() and put() the device.driver when calling its hooks. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-07-10ieee1394: convert ieee1394 from "struct class_device" to "struct device"Kay Sievers
Here is a straightforward conversion to "struct device". The "struct class_device" will be removed from the kernel. It seems to work fine for me with and without CONFIG_SYSFS_DEPRECATED set. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-07-10ieee1394: raw1394: fix a 32/64-bits compat fixStefan Richter
I was told that only i386 aligns 64 bit integers at 4 bytes boundaries while all other architectures (32 bit architectures with 64 bit siblings) align it on 8 bytes boundaries. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-07-10ieee1394: raw1394: Add ioctl() for 32bit userland on 64bit kernel, amendmentStefan Richter
Pointed out by Arnd Bergmann: PPC32 aligns this at 64bit, IA32 packs it. A kernel-wide available __compat_u64 which is 4-byte aligned on AMD64 and IA64 would be nicer though. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-07-10ieee1394: raw1394: Add ioctl() for 32bit userland on 64bit kernelPetr Vandrovec
Add compat_ioctl. Although all structures are more or less same, raw1394_iso_packets got pointer inside, and raw1394_cycle_timer got unwanted padding in the middle. I did not add any translation for ioctls passing array of integers around as integers seem to have same size (32 bits) on all architectures supported by Linux. Signed-off-by: Petr Vandrovec <petr@vandrovec.name> Acked-by: Dan Dennedy <dan@dennedy.org> Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> (split into 3 patches)
2007-07-10ieee1394: raw1394: Fix write() for 32bit userland on 64bit kernelPetr Vandrovec
* write(fd, buf, 52) from 32bit app was returning 56. Most of callers did not care, but some (arm registration) did, and anyway it looks bad if request for writing 52 bytes returns 56. And returning sizeof anything in 'int' is not good as well. So all functions now return '0' instead of sizeof(struct raw1394_request) on success, and write() itself provides correct return value (it just returns value it was asked to write on success as raw1394 does not do any partial writes at all). * Related to this was problem that write() could have returned 0 when kernel state would become corrupted and moved to different state than opened/initialized/connected. Now it returns -EBADFD which seemed appropriate. Signed-off-by: Petr Vandrovec <petr@vandrovec.name> Acked-by: Dan Dennedy <dan@dennedy.org> Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> (split into 3 patches)
2007-07-10ieee1394: raw1394: Fix read() for 32bit userland on 64bit kernelPetr Vandrovec
read() always failed with -EFAULT. This was happening due to raw1394_compat_read copying data to wrong location - access_ok always failed as 'r' is kernel address, not user. Whole function just tried to copy data from 'r' to 'r', which is not good. Signed-off-by: Petr Vandrovec <petr@vandrovec.name> Acked-by: Dan Dennedy <dan@dennedy.org> Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> (split into 3 patches)
2007-07-10ieee1394: add comments in struct hpsb_packetStefan Richter
to clarify who is supposed to set what Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
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