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2008-10-09Allow elevators to sort/merge discard requestsDavid Woodhouse
But blkdev_issue_discard() still emits requests which are interpreted as soft barriers, because naïve callers might otherwise issue subsequent writes to those same sectors, which might cross on the queue (if they're reallocated quickly enough). Callers still _can_ issue non-barrier discard requests, but they have to take care of queue ordering for themselves. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-10-09Add BLKDISCARD ioctl to allow userspace to discard sectorsDavid Woodhouse
We may well want mkfs tools to use this to mark the whole device as unwanted before they format it, for example. The ioctl takes a pair of uint64_ts, which are start offset and length in _bytes_. Although at the moment it might make sense for them both to be in 512-byte sectors, I don't want to limit the ABI to that. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-10-09Use WRITE_BARRIER in blkdev_issue_flush(), not (1<<BIO_RW_BARRIER)OGAWA Hirofumi
Barriers should be submitted with the WRITE flag set. Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-10-09blktrace: simplify flags handling in __blk_add_traceDavid Woodhouse
Let the compiler see what's going on, and it can all get a lot simpler. On PPC64 this reduces the size of the code calculating these bits by about 60%. On x86_64 it's less of a win -- only 40%. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-10-09blktrace: support discard requestsDavid Woodhouse
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-10-09Support 'discard sectors' operation.David Woodhouse
We can benefit from knowing that the file system no longer cares about the contents of certain sectors, by throwing them away immediately and then never having to garbage collect them, and using the extra free space to make our operations more efficient. Do so. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-10-09Support 'discard sectors' operation in translation layer support coreDavid Woodhouse
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-10-09Let the block device know when sectors can be discardedDavid Woodhouse
[hirofumi@mail.parknet.co.jp: discard _after_ checking for corrupt chains] Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Acked-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-10-09Add 'discard' request handlingDavid Woodhouse
Some block devices benefit from a hint that they can forget the contents of certain sectors. Add basic support for this to the block core, along with a 'blkdev_issue_discard()' helper function which issues such requests. The caller doesn't get to provide an end_io functio, since blkdev_issue_discard() will automatically split the request up into multiple bios if appropriate. Neither does the function wait for completion -- it's expected that callers won't care about when, or even _if_, the request completes. It's only a hint to the device anyway. By definition, the file system doesn't _care_ about these sectors any more. [With feedback from OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> and Jens Axboe <jens.axboe@oracle.com] Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-10-09Fix up comments about matching flags between bio and rqDavid Woodhouse
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-10-09highmem: use bio_has_data() in the bounce pathJens Axboe
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-10-09block: use bio_has_data() in the IO completion pathJens Axboe
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-10-09block: use bio_has_data() to check for data carrying bioJens Axboe
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-10-09block: add bio_has_data() to detect whether a bio carries data or notJens Axboe
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-10-09SG_IO block filter whitelist missing MMC SET READ AHEAD commandxiphmont@xiph.org
I have another request for the block filter SG_IO command whitelist, specifically the MMC streaming command set SET READ AHEAD command. The command applies only to MMC CDROM/DVDROM drives with the streaming optional feature set. The command is useful to cdparanoia in that it allows explicit cache control side effects that are, on many drives, cdparanoia's most efficient way to flush/disable the media cache on cdrom drives. I am aware of no reason why it should not be accessible from usespace. Also note that the command is already fully accessible through the SCSI-native version of the SG_IO ioctl as well as the traditional SG interface. The command is only being refused on block devices. That means that on a typical stock distro, the command is available through /dev/sg* but not /dev/scd* although both are typically available and accessible. Filtering the command is not providing any protection, only a confusing inconsistency. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-10-08Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linusLinus Torvalds
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: [MIPS] Sibyte: Register PIO PATA device only for Swarm and Litte Sur
2008-10-08Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: tcp: Fix tcp_hybla zero congestion window growth with small rho and large cwnd. net: Fix netdev_run_todo dead-lock tcp: Fix possible double-ack w/ user dma net: only invoke dev->change_rx_flags when device is UP netrom: Fix sock_orphan() use in nr_release ax25: Quick fix for making sure unaccepted sockets get destroyed. Revert "ax25: Fix std timer socket destroy handling." [Bluetooth] Add reset quirk for A-Link BlueUSB21 dongle [Bluetooth] Add reset quirk for new Targus and Belkin dongles [Bluetooth] Fix double frees on error paths of btusb and bpa10x drivers
2008-10-08[MIPS] Sibyte: Register PIO PATA device only for Swarm and Litte SurRalf Baechle
Symbol name spaghetti which is too complicated to cleanup on this stage of the release cycle breaks the build on BCM1480 platforms. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-07tcp: Fix tcp_hybla zero congestion window growth with small rho and large cwnd.Daniele Lacamera
Because of rounding, in certain conditions, i.e. when in congestion avoidance state rho is smaller than 1/128 of the current cwnd, TCP Hybla congestion control starves and the cwnd is kept constant forever. This patch forces an increment by one segment after #send_cwnd calls without increments(newreno behavior). Signed-off-by: Daniele Lacamera <root@danielinux.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-07net: Fix netdev_run_todo dead-lockHerbert Xu
Benjamin Thery tracked down a bug that explains many instances of the error unregister_netdevice: waiting for %s to become free. Usage count = %d It turns out that netdev_run_todo can dead-lock with itself if a second instance of it is run in a thread that will then free a reference to the device waited on by the first instance. The problem is really quite silly. We were trying to create parallelism where none was required. As netdev_run_todo always follows a RTNL section, and that todo tasks can only be added with the RTNL held, by definition you should only need to wait for the very ones that you've added and be done with it. There is no need for a second mutex or spinlock. This is exactly what the following patch does. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-07Merge branch 'master' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/holtmann/bluetooth-2.6
2008-10-07tcp: Fix possible double-ack w/ user dmaAli Saidi
From: Ali Saidi <saidi@engin.umich.edu> When TCP receive copy offload is enabled it's possible that tcp_rcv_established() will cause two acks to be sent for a single packet. In the case that a tcp_dma_early_copy() is successful, copied_early is set to true which causes tcp_cleanup_rbuf() to be called early which can send an ack. Further along in tcp_rcv_established(), __tcp_ack_snd_check() is called and will schedule a delayed ACK. If no packets are processed before the delayed ack timer expires the packet will be acked twice. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-07net: only invoke dev->change_rx_flags when device is UPPatrick McHardy
Jesper Dangaard Brouer <hawk@comx.dk> reported a bug when setting a VLAN device down that is in promiscous mode: When the VLAN device is set down, the promiscous count on the real device is decremented by one by vlan_dev_stop(). When removing the promiscous flag from the VLAN device afterwards, the promiscous count on the real device is decremented a second time by the vlan_change_rx_flags() callback. The root cause for this is that the ->change_rx_flags() callback is invoked while the device is down. The synchronization is meant to mirror the behaviour of the ->set_rx_mode callbacks, meaning the ->open function is responsible for doing a full sync on open, the ->close() function is responsible for doing full cleanup on ->stop() and ->change_rx_flags() is meant to do incremental changes while the device is UP. Only invoke ->change_rx_flags() while the device is UP to provide the intended behaviour. Tested-by: Jesper Dangaard Brouer <jdb@comx.dk> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-07SLOB: fix bogus ksize calculationMatt Mackall
SLOB's ksize calculation was braindamaged and generally harmlessly underreported the allocation size. But for very small buffers, it could in fact overreport them, leading code depending on krealloc to overrun the allocation and trample other data. Signed-off-by: Matt Mackall <mpm@selenic.com> Tested-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-07Revert "V4L/DVB (8904): cx88: add missing unlock_kernel"Linus Torvalds
This reverts commit 135aedc38e812b922aa56096f36a3d72ffbcf2fb, as requested by Hans Verkuil. It was a patch for 2.6.28 where the BKL was pushed down from v4l core to the drivers, not for 2.6.27! Requested-by: Hans Verkuil <hverkuil@xs4all.nl> Cc: Mauro Carvalho Chehab <mchehab@infradead.org> Signed-of-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-06Linux 2.6.27-rc9Linus Torvalds
2008-10-06Marker depmod fix core kernel listMathieu Desnoyers
* Theodore Ts'o (tytso@mit.edu) wrote: > > I've been playing with adding some markers into ext4 to see if they > could be useful in solving some problems along with Systemtap. It > appears, though, that as of 2.6.27-rc8, markers defined in code which is > compiled directly into the kernel (i.e., not as modules) don't show up > in Module.markers: > > kvm_trace_entryexit arch/x86/kvm/kvm-intel %u %p %u %u %u %u %u %u > kvm_trace_handler arch/x86/kvm/kvm-intel %u %p %u %u %u %u %u %u > kvm_trace_entryexit arch/x86/kvm/kvm-amd %u %p %u %u %u %u %u %u > kvm_trace_handler arch/x86/kvm/kvm-amd %u %p %u %u %u %u %u %u > > (Note the lack of any of the kernel_sched_* markers, and the markers I > added for ext4_* and jbd2_* are missing as wel.) > > Systemtap apparently depends on in-kernel trace_mark being recorded in > Module.markers, and apparently it's been claimed that it used to be > there. Is this a bug in systemtap, or in how Module.markers is getting > built? And is there a file that contains the equivalent information > for markers located in non-modules code? I think the problem comes from "markers: fix duplicate modpost entry" (commit d35cb360c29956510b2fe1a953bd4968536f7216) Especially : - add_marker(mod, marker, fmt); + if (!mod->skip) + add_marker(mod, marker, fmt); } return; fail: Here is a fix that should take care if this problem. Thanks for the bug report! Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Tested-by: "Theodore Ts'o" <tytso@mit.edu> CC: Greg KH <greg@kroah.com> CC: David Smith <dsmith@redhat.com> CC: Roland McGrath <roland@redhat.com> CC: Sam Ravnborg <sam@ravnborg.org> CC: Wenji Huang <wenji.huang@oracle.com> CC: Takashi Nishiie <t-nishiie@np.css.fujitsu.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-06Merge branch 'for_linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb: kgdb: call touch_softlockup_watchdog on resume kgdb, x86: Avoid invoking kgdb_nmicallback twice per NMI
2008-10-06Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: gart iommu have direct mapping when agp is present too
2008-10-06Merge git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6: ide: workaround for bogus gcc warning in ide_sysfs_register_port() ide-cd: Optiarc DVD RW AD-7200A does play audio IDE: Fix platform device registration in Swarm IDE driver (v2) ide-dma: fix ide_build_dmatable() for TRM290 ide-cd: temporary tray close fix
2008-10-06Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linusLinus Torvalds
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: [MIPS] IP27: Fix build errors if CONFIG_MAPPED_KERNEL=y [MIPS] Fix CMP Kconfig configuration and mark as broken.
2008-10-06Merge branch 'fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb: (33 commits) V4L/DVB (9103): em28xx: HVR-900 B3C0 - fix audio clicking issue V4L/DVB (9099): em28xx: Add detection for K-WORLD DVB-T 310U V4L/DVB (9092): gspca: Bad init values for sonixj ov7660. V4L/DVB (9080): gspca: Add a delay after writing to the sonixj sensors. V4L/DVB (9075): gspca: Bad check of returned status in i2c_read() spca561. V4L/DVB (9053): fix buffer overflow in uvc-video V4L/DVB (9043): S5H1420: Fix size of shadow-array to avoid overflow V4L/DVB (9037): Fix support for Hauppauge Nova-S SE V4L/DVB (9029): Fix deadlock in demux code V4L/DVB (8979): sms1xxx: Add new USB product ID for Hauppauge WinTV MiniStick V4L/DVB (8978): sms1xxx: fix product name for Hauppauge WinTV MiniStick V4L/DVB (8967): Use correct XC3028L firmware for AMD ATI TV Wonder 600 V4L/DVB (8963): s2255drv field count fix V4L/DVB (8961): zr36067: Fix RGBR pixel format V4L/DVB (8960): drivers/media/video/cafe_ccic.c needs mm.h V4L/DVB (8958): zr36067: Return proper bytes-per-line value V4L/DVB (8957): zr36067: Restore the default pixel format V4L/DVB (8955): bttv: Prevent NULL pointer dereference in radio_open V4L/DVB (8935): em28xx-cards: Remove duplicate entry (EM2800_BOARD_KWORLD_USB2800) V4L/DVB (8933): gspca: Disable light frquency for zc3xx cs2102 Kokom. ...
2008-10-06atmel-mci: Initialize BLKR before sending data transfer commandHaavard Skinnemoen
The atmel-mci driver sometimes fails data transfers like this: mmcblk0: error -5 transferring data end_request: I/O error, dev mmcblk0, sector 2749769 end_request: I/O error, dev mmcblk0, sector 2749777 It turns out that this might be caused by the BLKR register (which contains the block size and the number of blocks being transfered) being initialized too late. This patch moves the initialization of BLKR so that it contains the correct value before the block transfer command is sent. This error is difficult to reproduce, but if you insert a long delay (mdelay(10) or thereabouts) between the calls to atmci_start_command() and atmci_submit_data(), all transfers seem to fail without this patch, while I haven't seen any failures with this patch. Reported-by: Hein_Tibosch <hein_tibosch@yahoo.es> Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-06netrom: Fix sock_orphan() use in nr_releaseJarek Poplawski
While debugging another bug it was found that NetRom socks are sometimes seen unorphaned in sk_free(). This patch moves sock_orphan() in nr_release() to the beginning (like in ax25, or rose). Reported-and-tested-by: Bernard Pidoux f6bvp <f6bvp@free.fr> Signed-off-by: Jarek Poplawski <jarkao2@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-06ax25: Quick fix for making sure unaccepted sockets get destroyed.David S. Miller
Since we reverted 30902dc3cb0ea1cfc7ac2b17bcf478ff98420d74 ("ax25: Fix std timer socket destroy handling.") we have to put some kind of fix in to cure the issue whereby unaccepted connections do not get destroyed. The approach used here is from Tihomir Heidelberg - 9a4gl Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-06Revert "ax25: Fix std timer socket destroy handling."David S. Miller
This reverts commit 30902dc3cb0ea1cfc7ac2b17bcf478ff98420d74. It causes all kinds of problems, based upon a report by Bernard (f6bvp) and analysis by Jarek Poplawski. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-06kgdb: call touch_softlockup_watchdog on resumeJason Wessel
The softlockup watchdog needs to be touched when resuming the from the kgdb stopped state to avoid the printk that a CPU is stuck if the debugger was active for longer than the softlockup threshold. Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
2008-10-06kgdb, x86: Avoid invoking kgdb_nmicallback twice per NMIJan Kiszka
Stress-testing KVM's latest NMI support with kgdbts inside an SMP guest, I came across spurious unhandled NMIs while running the singlestep test. Looking closer at the code path each NMI takes when KGDB is enabled, I noticed that kgdb_nmicallback is called twice per event: One time via DIE_NMI_IPI notification, the second time on DIE_NMI. Removing the first invocation cures the unhandled NMIs here. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
2008-10-06x86 ACPI: Blacklist two HP machines with buggy BIOSesRafael J. Wysocki
There is a bug in the BIOSes of some HP boxes with AMD Turions which connects IO-APIC pins with ACPI thermal trip points in such a way that if the state of the IO-APIC is not as expected by the (buggy) BIOS, the thermal trip points are set to insanely low values (usually all of them become 16 degrees Celsius). As a result, thermal throttling kicks in and knock the system down to its shoes. Unfortunately some of the recent IO-APIC changes made the bug show up. To prevent this from happening, blacklist machines that are known to be affected (nx6115 and 6715b in this particular case). This fixes http://bugzilla.kernel.org/show_bug.cgi?id=11516 listed as a regression from 2.6.26. On my box it was caused by: commit 691874fa96d6349a8b60f8ea9c2bae52ece79941 Author: Maciej W. Rozycki <macro@linux-mips.org> Date: Tue May 27 21:19:51 2008 +0100 x86: I/O APIC: timer through 8259A second-chance Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> and the whole story is described in this (huge) thread: http://marc.info/?l=linux-kernel&m=121358440508410&w=4 Matthew Garrett told us about that happening on the nx6125: http://marc.info/?l=linux-kernel&m=121396307411930&w=4 and then Maciej analysed the breakage on the basis of a DSDT from the nx6325: http://marc.info/?l=linux-kernel&m=121401068718826&w=4 As far as the Dmitry's and Jason's boxes are concerned, I recognized the symptoms and asked them to verify that the blacklisting helped. It appears that the buggy BIOS code has been copy-pasted to the entire range of machines, for no good reason. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Tested-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Tested-by: Jason Vas Dias <jason.vas.dias@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-06[Bluetooth] Add reset quirk for A-Link BlueUSB21 dongleMarcel Holtmann
The new A-Link Bluetooth dongle is another one based on the BCM2046 chip from Broadcom and it also needs to send HCI_Reset before it becomes fully operational. Without the quirk it will show a lot of I/O errors. Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2008-10-06[Bluetooth] Add reset quirk for new Targus and Belkin donglesMarcel Holtmann
Targus and Belkin have come out with new Bluetooth 2.1 capable dongles using the latest BCM2046 chip from Broadcom. Both of them are so called HID proxy dongles and they need to send HCI_Reset before they become fully operational. Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2008-10-06[Bluetooth] Fix double frees on error paths of btusb and bpa10x driversMarcel Holtmann
The transfer buffer of an URB will be automatically freed when using the URB_FREE_BUFFER transfer_flag. So the extra calls to kfree() will cause a double free. Reported-by: Justin Mattock <justinmattock@gmail.com> Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2008-10-06[MIPS] IP27: Fix build errors if CONFIG_MAPPED_KERNEL=yRalf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-06[MIPS] Fix CMP Kconfig configuration and mark as broken.Ralf Baechle
Because sync-r4k.c doesn't build. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-05ide: workaround for bogus gcc warning in ide_sysfs_register_port()Bartlomiej Zolnierkiewicz
Reported-by: "Steven Noonan" <steven@uplinklabs.net> Suggested-by: "Elias Oltmanns" <eo@nebensachen.de> Cc: mingo@elte.hu Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-10-05ide-cd: Optiarc DVD RW AD-7200A does play audioBodo Eggert
The Optiarc DVD RW AD-7200A can play audio, but tells it could not. Signed-off-by: Bodo Eggert <7eggert@gmx.de> Tested-by: Nick Warne <nick@ukfsn.org> Received-from: Borislav Petkov <petkovbb@googlemail.com> [bart: keep "audio" quirks together] Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-10-05IDE: Fix platform device registration in Swarm IDE driver (v2)Ralf Baechle
The Swarm IDE driver uses a release method which is defined in the driver itself thus potentially oopsable. The simple fix would be to just leak the device but this patch goes the full length and moves the entire handling of the platform device in the platform code and retains only the platform driver code in drivers/ide/mips/swarm.c. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Cc: "Maciej W. Rozycki" <macro@linux-mips.org> Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> [bart: remove no longer needed BLK_DEV_IDE_SWARM from ide/Kconfig] Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-10-05ide-dma: fix ide_build_dmatable() for TRM290Sergei Shtylylov
Apparently, 'xcount' being 0 does not mean 0 bytes for TRM290; it means 4 bytes, judging from the code immediately preceding this check. So, we must never try to "split" the PRD for TRM290. This is probably never hit anyway -- with the DMA buffers aligned to at least 512 bytes and ATAPI DMA not being used for non block I/O commands... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-10-05ide-cd: temporary tray close fixBorislav Petkov
This one fixes http://bugzilla.kernel.org/show_bug.cgi?id=11602. A more generic fix for drives which cannot autoclose tray will follow. Signed-off-by: Borislav Petkov <petkovbb@gmail.com> Cc: Jens Axboe <jens.axboe@oracle.com> [bart: add an extra parentheses for consistency with the rest of kernel code] Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-10-05x86: gart iommu have direct mapping when agp is present tooYinghai Lu
move init_memory_mapping() out of init_k8_gatt. for: http://bugzilla.kernel.org/show_bug.cgi?id=11676 2.6.27-rc2 to rc8, apgart fails, iommu=soft works, regression This is needed because we need to map the GART aperture even if the GATT is not initialized. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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