- 03 7月, 2008 14 次提交
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由 Alasdair G Kergon 提交于
When devices are stacked, one device's merge_bvec_fn may need to perform the mapping and then call one or more functions for its underlying devices. The following bio fields are used: bio->bi_sector bio->bi_bdev bio->bi_size bio->bi_rw using bio_data_dir() This patch creates a new struct bvec_merge_data holding a copy of those fields to avoid having to change them directly in the struct bio when going down the stack only to have to change them back again on the way back up. (And then when the bio gets mapped for real, the whole exercise gets repeated, but that's a problem for another day...) Signed-off-by: NAlasdair G Kergon <agk@redhat.com> Cc: Neil Brown <neilb@suse.de> Cc: Milan Broz <mbroz@redhat.com> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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由 Adel Gadllah 提交于
This patch adds the commands that the former sg filter allowed for read access to the cmdfilter to keep userspace apps that rely on them working. Signed-off-by: NAdel Gadllah <adel.gadllah@gmail.com> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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由 Jens Axboe 提交于
Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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由 Adel Gadllah 提交于
This patch exports the per-gendisk command filter to user space through sysfs, so it can be changed by the system administrator. All users of the old cmd filter have been converted to use the new one. Original patch from Peter Jones. Signed-off-by: NAdel Gadllah <adel.gadllah@gmail.com> Signed-off-by: NPeter Jones <pjones@redhat.com> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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由 Ian Campbell 提交于
Avoid allocations causing swap activity on the resume path by preventing the allocations from doing IO and allowing them to access the emergency pools. These paths are used when a frontend device is trying to connect to its backend driver over Xenbus. These reconnections are triggered on demand by IO, so by definition there is already IO underway, and further IO would naturally deadlock. On resume, this path is triggered when the running system tries to continue using its devices. If it cannot then the resume will fail; to try to avoid this we let it dip into the emergency pools. [ linux-2.6.18-xen changesets e8b49cfbdac, fdb998e79aba ] Signed-off-by: NIan Campbell <ian.campbell@citrix.com> Signed-off-by: NJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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由 Jan Beulich 提交于
Signed-off-by: NJan Beulich <jbeulich@novell.com> Signed-off-by: NJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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由 Wim Colgate 提交于
[ linux-2.6.18-xen changeset c1c57fea77e9 ] Signed-off-by: NWim Colgate <wim@xensource.com> Signed-off-by: NJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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由 Christian Limpach 提交于
Return 0 instead of -EINVAL if the blkfront device is a cdrom, i.e. had the VDISK_CDROM attribute. This allows udev's cdrom_id to correctly detect the device as a cdrom device. [ Add blkif_ioctl, and CDROMMULTISESSION ] [ linux-2.6.18-xen changeset d2bd9af846b5 ] Signed-off-by: NChristian Limpach <Christian.Limpach@xensource.com> Signed-off-by: NJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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由 Ian Campbell 提交于
[ linux-2.6.18-xen changeset 667228bf8fc5 ] Signed-off-by: NIan Campbell <ian.campbell@xensource.com> Signed-off-by: NJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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由 Alan Cox 提交于
Not sure how this came to get inverted but it appears to have been my mess up. Signed-off-by: NAlan Cox <alan@redhat.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jesse Barnes 提交于
When scheduled swaps occur, we need to blit between front & back buffers. If the buffers are tiled, we need to set the appropriate XY_SRC_COPY tile bit, but only on 965 chips, since it will cause corruption on pre-965 (e.g. 945). Bug reported by and fix tested by Tomas Janousek <tomi@nomi.cz>. Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org> Acked-by: NDave Airlie <airlied@linux.ie> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Geert Uytterhoeven 提交于
Commit 656acd2b ("Input: fix locking in force-feedback core") causes the following regression on m68k: | linux/drivers/input/ff-core.c: In function 'input_ff_upload': | linux/drivers/input/ff-core.c:172: error: dereferencing pointer to incomplete type | linux/drivers/input/ff-core.c: In function 'erase_effect': | linux/drivers/input/ff-core.c:197: error: dereferencing pointer to incomplete type | linux/drivers/input/ff-core.c:204: error: dereferencing pointer to incomplete type | make[4]: *** [drivers/input/ff-core.o] Error 1 As the incomplete type is `struct task_struct', including <linux/sched.h> fixes it. Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org> Acked-by: NDmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Alex Chiang 提交于
During the development of the physical PCI slot patch series, Gary Hade kept on reporting strange oopses due to interactions between pci_slot and acpiphp. http://lkml.org/lkml/2007/11/28/319 find_root_bridges() unconditionally installs handle_hotplug_event_bridge() as an ACPI_SYSTEM_NOTIFY handler for all root bridges. However, during module cleanup, remove_bridge() will only remove the notify handler iff the root bridge had a hot-pluggable slot directly underneath. That is: root bridge -> hotplug slot But, if the topology looks like either of the following: root bridge -> non-hotplug slot root bridge -> p2p bridge -> hotplug slot Then we currently do not remove the notify handler from that root bridge. This can cause a kernel oops if we modprobe acpiphp later and it gets loaded somewhere else in memory. If the root bridge then receives a hotplug event, it will then attempt to call a stale, non-existent notify handler and we blow up. Much thanks goes to Gary Hade for his persistent debugging efforts. Signed-off-by: NAlex Chiang <achiang@hp.com> Signed-off-by: NGary Hade <garyhade@us.ibm.com> Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>
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由 Benjamin Li 提交于
For Broadcom 5706, 5708, 5709 rev. A nics, any read beyond the VPD end tag will hang the device. This problem was initially observed when a vpd entry was created in sysfs ('/sys/bus/pci/devices/<id>/vpd'). A read to this sysfs entry will dump 32k of data. Reading a full 32k will cause an access beyond the VPD end tag causing the device to hang. Once the device is hung, the bnx2 driver will not be able to reset the device. We believe that it is legal to read beyond the end tag and therefore the solution is to limit the read/write length. A majority of this patch is from Matthew Wilcox who gave code for reworking the PCI vpd size information. A PCI quirk added for the Broadcom NIC's to limit the read/write's. Signed-off-by: NBenjamin Li <benli@broadcom.com> Signed-off-by: NMatthew Wilcox <willy@linux.intel.com> Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>
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- 02 7月, 2008 3 次提交
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由 Mauro Carvalho Chehab 提交于
UVC makefile defines obj as: obj-$(CONFIG_USB_VIDEO_CLASS) := uvcvideo.o Instead of: obj-$(CONFIG_USB_VIDEO_CLASS) += uvcvideo.o Due to that, if uvc is selected, all obj-y or obj-m that were added to compilation were forget. This breaks a proper kernel build. Acked-by: NLaurent Pinchart <laurent.pinchart@skynet.be> Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>
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由 Milan Broz 提交于
Add cond_resched() to prevent monopolising CPU when processing large bios. dm-crypt processes encryption of bios in sector units. If the bio request is big it can spend a long time in the encryption call. Signed-off-by: NMilan Broz <mbroz@redhat.com> Tested-by: NYan Li <elliot.li.tech@gmail.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NAlasdair G Kergon <agk@redhat.com>
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由 Ben Hutchings 提交于
Some PCI devices will lock up if we attempt to read from VPD addresses beyond some device-dependent limit. Until we can identify these devices and adjust the file size accordingly, only let root read VPD through sysfs to prevent a DoS by normal users. Signed-off-by: NBen Hutchings <bhutchings@solarflare.com> Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>
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- 01 7月, 2008 8 次提交
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由 Ben Dooks 提交于
Add a MODULE_ALIAS() statement for the i2c-s3c2410 controller to ensure that it can be autoloaded on the S3C2440 systems that we support. Signed-off-by: NBen Dooks <ben-linux@fluff.org>
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由 Ben Dooks 提交于
The driver should be returning -ENXIO for transfers that do not pass the initial address byte stage. Note, also small tidyups to the driver comments in the area. Signed-off-by: NBen Dooks <ben-linux@fluff.org>
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由 Ben Dooks 提交于
We should check for the reception of an ACK after transmitting each data byte. The address send has been correctly checking this, but the data write byte state should have also been checking for these failures. As part of the same fix, we remove the ACK checking from the receive path where it should not have been checking for an ACK which our hardware was sending. Signed-off-by: NBen Dooks <ben-linux@fluff.org>
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由 Laurent Pinchart 提交于
This driver supports video input devices compliant with the USB Video Class specification. This means lots of currently manufactured webcams, and probably most of the future ones. Signed-off-by: NLaurent Pinchart <laurent.pinchart@skynet.be> Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>
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由 Pavel Roskin 提交于
Rewrite AID calculation in handle_pspoll() to avoid truncating bits. Make hostap_80211_header_parse() static, don't export it. Avoid shadowing variables. Signed-off-by: NPavel Roskin <proski@gnu.org> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Pavel Roskin 提交于
DEBUG_EXTRA is reported to the kernel log by default, but DEBUG_EXTRA2 is not. Unrelated WDS frames pollute the log unnecessarily. Signed-off-by: NPavel Roskin <proski@gnu.org> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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Now that we support warm-plug mate port will be registered even if there are no devices attached to it. Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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This reverts commit ac162362. It was premature to remove it now, we will do it post-2.6.26. Thanks to Russell King for noticing the issue. Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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- 30 6月, 2008 1 次提交
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由 Dmitry Torokhov 提交于
The newly added event_lock spinlock in the input core disallows sleeping and therefore using mutexes in event handlers. Convert force-feedback core to rely on event_lock instead of mutex to protect slots allocated for fore-feedback effects. The original mutex is still used to serialize uploading and erasing of effects. Reported-by: NAnssi Hannula <anssi.hannula@gmail.com> Signed-off-by: NDmitry Torokhov <dtor@mail.ru>
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- 28 6月, 2008 8 次提交
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由 Li Zefan 提交于
I got a problem when I wanted to check if the kernel supports process event connector, and It seems there's no way to do this check. At best I can check if the kernel supports connector or not, by looking into /proc/net/netlink, or maybe checking the return value of bind() to see if it's ENOENT. So it would be useful to add /proc/net/connector to list all supported connectors: # cat /proc/net/connector Name ID connector 4294967295:4294967295 cn_proc 1:1 w1 3:1 Changelog: - fix memory leak: s/seq_release/single_release - use spin_lock_bh instead of spin_lock_irqsave Signed-off-by: NLi Zefan <lizf@cn.fujitsu.com> Acked-by: NEvgeniy Polyakov <johnpol@2ka.mipt.ru> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Andre Haupt 提交于
Signed-off-by: NAndre Haupt <andre@bitwigglers.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Neil Brown 提交于
md_probe can fail (e.g. alloc_disk could fail) without returning an error (as it alway returns NULL). So when we call mddev_find immediately afterwards, we need to check that md_probe actually succeeded. This means checking that mdev->gendisk is non-NULL. cc: <stable@kernel.org> Cc: Dave Jones <davej@redhat.com> Signed-off-by: NNeil Brown <neilb@suse.de>
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由 Neil Brown 提交于
We shouldn't acknowledge that a stripe has been expanded (When reshaping a raid5 by adding a device) until the moved data has actually been written out. However we are currently acknowledging (by calling md_done_sync) when the POST_XOR is complete and before the write. So track in s.locked whether there are pending writes, and don't call md_done_sync yet if there are. Note: we all set R5_LOCKED on devices which are are about to read from. This probably isn't technically necessary, but is usually done when writing a block, and justifies the use of s.locked here. This bug can lead to a crash if an array is stopped while an reshape is in progress. Cc: <stable@kernel.org> Signed-off-by: NNeil Brown <neilb@suse.de>
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由 Neil Brown 提交于
If, while assembling an array, we find a device which is not fully in-sync with the array, it is important to set the "fullsync" flags. This is an exact analog to the setting of this flag in hot_add_disk methods. Currently, only v1.x metadata supports having devices in an array which are not fully in-sync (it keep track of how in sync they are). The 'fullsync' flag only makes a difference when a write-intent bitmap is being used. In this case it tells recovery to ignore the bitmap and recovery all blocks. This fix is already in place for raid1, but not raid5/6 or raid10. So without this fix, a raid1 ir raid4/5/6 array with version 1.x metadata and a write intent bitmaps, that is stopped in the middle of a recovery, will appear to complete the recovery instantly after it is reassembled, but the recovery will not be correct. If you might have an array like that, issueing echo repair > /sys/block/mdXX/md/sync_action will make sure recovery completes properly. Cc: <stable@kernel.org> Signed-off-by: NNeil Brown <neilb@suse.de>
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由 Richard Sharpe 提交于
There is a small off-by-one bug in firewire-sbp2. This causes problems when a device exports multiple LUN Directories. I found it when trying to talk to a SONY DVD Jukebox. Signed-off-by: NRichard Sharpe <realrichardsharpe@gmail.com> Acked-by: NKristian Høgsberg <krh@redhat.com> Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> (op. order, changelog)
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由 Harvey Harrison 提交于
clock is already cpu-endian (see le32_to_cpu slightly before), so le64_to_cpu doesn't make much sense. Signed-off-by: NHarvey Harrison <harvey.harrison@gmail.com> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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由 Ivo van Doorn 提交于
This fixes a circular locking dependency in the workqueue handling. The interface work task uses the mac80211 function ieee80211_iterate_active_interfaces() which grabs the RTNL lock. However when the interface is brough down, this happens under the RTNL lock as well, this causes problems because mac80211 will flush the workqueue during the ifdown event. This causes mac80211 to wait until the driver has completed all work which can't finish because it is waiting on the RTNL lock. This is fixed by moving rt2x00 workqueue tasks on a different workqueue, this workqueue can be flushed when the ieee80211_hw structure is removed by the driver (when the driver is unloaded) which does not happen under the RTNL lock. Signed-off-by: NIvo van Doorn <IvDoorn@gmail.com> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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- 27 6月, 2008 6 次提交
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由 Ben Hutchings 提交于
dev_close() must be called holding the RTNL. Compile-tested only. Signed-off-by: NBen Hutchings <bhutchings@solarflare.com> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
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由 Ben Hutchings 提交于
dev_close() must be called holding the RTNL. Compile-tested only. Signed-off-by: NBen Hutchings <bhutchings@solarflare.com> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
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由 Andi Kleen 提交于
s2io has IOMMU overflow checking, but unfortunately it is wrong. It didn't use the standard macros, which meant that it only worked on POWER and SPARC because only those define DMA_ERROR_CODE. Convert it to use the standard macros instead. I also commented two more bugs in the IOMMU handling. It assumes that 0 DMA addresses cannot happen, but that's not true in all IOMMU setups. The information if a buffer has been already mapped needs to be stored elsewhere. Didn't fix those because it needs careful checking of the buffer handling by the maintainers. Cc: ram.vepa@neterion.com Cc: santosh.rastapur@neterion.com Cc: sivakumar.subramani@neterion.com Cc: sreenivasa.honnur@neterion.com Signed-off-by: NAndi Kleen <ak@linux.intel.com> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
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由 Andy Gospodarek 提交于
When enabling TSO via ethool on e1000, it is possible to set NETIF_F_TSO6 on hardware that does not support it. Setting TSO via ethtool now matches the settings used when the hardware is probed. Signed-off-by: NAndy Gospodarek <andy@greyhouse.net> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
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由 Kevin Hao 提交于
The E100 device can't work on current kernel (2.6.26-rc6) and will cause kernel corruption on intel ixdp4xx. Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
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由 Al Viro 提交于
PCI_DEVICE_CLASS sets .device and .vendor to PCI_ANY_DEV, which overrides the effect of preceding PCI_DEVICE() and makes all elements of netxen_pci_tbl[] identical. Introduced in the commit dcd56fdb. Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
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