- 01 3月, 2010 10 次提交
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由 Stephen M. Cameron 提交于
cciss: do not use void pointer for scsi hba data and get rid of related unnecessary type casting and delete some superfluous and misleading comments nearby. Signed-off-by: NStephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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由 Stephen M. Cameron 提交于
cciss: factor out scatter gather chain block mapping code Rationale is I want to use this code from the scsi half of the driver. Signed-off-by: NStephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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由 Stephen M. Cameron 提交于
cciss: fix scatter gather chain block dma direction kludge The data direction for the chained block of scatter gather elements should always be PCI_DMA_TODEVICE, but was mistakenly set to the direction of the data transfer, then a kludge to fix it was added, in which pci_dma_sync_single_for_device or pci_dma_sync_single_for_cpu was called. If the correct direction is used in the first place, the kludge isn't needed. Signed-off-by: NStephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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由 Stephen M. Cameron 提交于
cciss: simplify scatter gather code. Instead of allocating an array of pointers to a structure containing an SGDescriptor structure, and two other elements that aren't really used, just allocate SGDescriptor structs. Signed-off-by: NStephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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由 Stephen M. Cameron 提交于
cciss: factor out scatter gather chain block allocation and freeing Rationale is that I want to use this code from the scsi half of the driver. Signed-off-by: NStephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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由 Stephen M. Cameron 提交于
cciss: detect bad alignment of scsi commands at build time Incidentally fix some nearby c++ style comments. Signed-off-by: NStephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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由 Stephen M. Cameron 提交于
cciss: clarify command list padding calculation Signed-off-by: NStephen M. Cameron <scameron@beardog.cce.hp.com> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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由 Corrado Zoccolo 提交于
CFQ currently applies the same logic of detecting seeky queues and grouping them together for rotational disks as well as SSDs. For SSDs, the time to complete a request doesn't depend on the request location, but only on the size. This patch therefore changes the criterion to group queues by request size in case of SSDs, in order to achieve better fairness. Signed-off-by: NCorrado Zoccolo <czoccolo@gmail.com> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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由 Corrado Zoccolo 提交于
Current seeky detection is based on average seek lenght. This is suboptimal, since the average will not distinguish between: * a process doing medium sized seeks * a process doing some sequential requests interleaved with larger seeks and even a medium seek can take lot of time, if the requested sector happens to be behind the disk head in the rotation (50% probability). Therefore, we change the seeky queue detection to work as follows: * each request can be classified as sequential if it is very close to the current head position, i.e. it is likely in the disk cache (disks usually read more data than requested, and put it in cache for subsequent reads). Otherwise, the request is classified as seeky. * an history window of the last 32 requests is kept, storing the classification result. * A queue is marked as seeky if more than 1/8 of the last 32 requests were seeky. This patch fixes a regression reported by Yanmin, on mmap 64k random reads. Reported-by: NYanmin Zhang <yanmin_zhang@linux.intel.com> Signed-off-by: NCorrado Zoccolo <czoccolo@gmail.com> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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由 Jens Axboe 提交于
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- 26 2月, 2010 7 次提交
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由 Richard Kennedy 提交于
On 64 bit builds when CONFIG_BLK_CGROUP=n (the default) this removes 8 bytes of padding from structure io_context and drops its size from 72 to 64 bytes, so needing one fewer cachelines and allowing more objects per slab in it's kmem_cache. Signed-off-by: NRichard Kennedy <richard@rsk.demon.co.uk> ---- patch against 2.6.33 compiled & test on x86_64 AMDX2 regards Richard Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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由 Martin K. Petersen 提交于
Except for SCSI no device drivers distinguish between physical and hardware segment limits. Consolidate the two into a single segment limit. Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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由 Martin K. Petersen 提交于
The block layer calling convention is blk_queue_<limit name>. blk_queue_max_sectors predates this practice, leading to some confusion. Rename the function to appropriately reflect that its intended use is to set max_hw_sectors. Also introduce a temporary wrapper for backwards compability. This can be removed after the merge window is closed. Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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由 Martin K. Petersen 提交于
Add a BLK_ prefix to block layer constants. Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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由 Martin K. Petersen 提交于
blk_queue_max_hw_sectors is no longer called by any subsystem and can be removed. Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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由 Martin K. Petersen 提交于
Clarify blk_queue_max_sectors and update documentation. Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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由 Gui Jianfeng 提交于
There's no need to take css reference here, for the caller has already called rcu_read_lock() to prevent cgroup from being removed. Signed-off-by: NGui Jianfeng <guijianfeng@cn.fujitsu.com> Reviewed-by: NLi Zefan <lizf@cn.fujitsu.com> Acked-by: NVivek Goyal <vgoyal@redhat.com> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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- 25 2月, 2010 6 次提交
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由 Jens Axboe 提交于
Conflicts: include/linux/blkdev.h Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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由 Xiaotian Feng 提交于
If radix_tree_preload is failed in ima_inode_alloc, we don't need radix_tree_preload_end because kernel is alread preempt enabled Signed-off-by: NXiaotian Feng <dfeng@redhat.com> Signed-off-by: NMimi Zohar <zohar@us.ibm.com> Signed-off-by: NJames Morris <jmorris@namei.org>
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由 Linus Torvalds 提交于
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git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6由 Linus Torvalds 提交于
* 'urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6: parisc: Set PCI CLS early in boot.
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git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6由 Linus Torvalds 提交于
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6: [IA64] Fix broken sn2 build
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由 Carlos O'Donell 提交于
Set the PCI CLS early in the boot process to prevent device failures. In pcibios_set_master use the new pci_cache_line_size instead of a hard-coded value. Signed-off-by: NCarlos O'Donell <carlos@codesourcery.com> Reviewed-by: NGrant Grundler <grundler@google.com> Signed-off-by: NKyle McMartin <kyle@redhat.com>
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- 24 2月, 2010 10 次提交
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git://git.monstr.eu/linux-2.6-microblaze由 Linus Torvalds 提交于
* 'for-linus' of git://git.monstr.eu/linux-2.6-microblaze: microblaze: Fix out_le32() macro microblaze: Fix cache loop function for cache range
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git://git.kernel.dk/linux-2.6-block由 Linus Torvalds 提交于
* 'for-linus' of git://git.kernel.dk/linux-2.6-block: Revert "block: improve queue_should_plug() by looking at IO depths"
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由 Steven J. Magnani 提交于
Trailing semicolon causes compilation involving out_le32() to fail. Signed-off-by: NSteven J. Magnani <steve@digidescorp.com> Signed-off-by: NMichal Simek <monstr@monstr.eu>
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由 Michal Simek 提交于
I create wrong asm code but none test shows that this part of code is wrong. I am not convinces that were good idea to create asm optimized macros for caches. The reason is that there is not optimization with previous code that's why make sense to add old code and do some benchmarking which functions are faster. Signed-off-by: NMichal Simek <monstr@monstr.eu>
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由 Akinobu Mita 提交于
Now that the bio list management stuff is generic, convert pktcdvd to use bio lists instead of its own private bio list implementation. Signed-off-by: NAkinobu Mita <akinobu.mita@gmail.com> Acked-by: NPeter Osterlund <petero2@telia.com> Cc: Christoph Hellwig <hch@infradead.org> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6由 Linus Torvalds 提交于
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: net: bug fix for vlan + gro issue tc35815: Remove a wrong netif_wake_queue() call which triggers BUG_ON cdc_ether: new PID for Ericsson C3607w to the whitelist (resubmit) IPv6: better document max_addresses parameter MAINTAINERS: update mv643xx_eth maintenance status e1000: Fix DMA mapping error handling on RX iwlwifi: sanity check before counting number of tfds can be free iwlwifi: error checking for number of tfds in queue iwlwifi: set HT flags after channel in rxon
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由 Ajit Khaparde 提交于
Traffic (tcp) doesnot start on a vlan interface when gro is enabled. Even the tcp handshake was not taking place. This is because, the eth_type_trans call before the netif_receive_skb in napi_gro_finish() resets the skb->dev to napi->dev from the previously set vlan netdev interface. This causes the ip_route_input to drop the incoming packet considering it as a packet coming from a martian source. I could repro this on 2.6.32.7 (stable) and 2.6.33-rc7. With this fix, the traffic starts and the test runs fine on both vlan and non-vlan interfaces. CC: Herbert Xu <herbert@gondor.apana.org.au> CC: Patrick McHardy <kaber@trash.net> Signed-off-by: NAjit Khaparde <ajitk@serverengines.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6由 Linus Torvalds 提交于
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: ACPI: Be in TS_POLLING state during mwait based C-state entry ACPI: Fix regression where _PPC is not read at boot even when ignore_ppc=0 acer-wmi: Respect current backlight level when loading
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git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6由 Linus Torvalds 提交于
* 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: drm/vmwgfx: Fix queries if no dma buffer thrashing is occuring. drm/nv50: fix vram ptes on IGPs to point at stolen system memory drm/nv50: fix instmem binding on IGPs to point at stolen system memory drm/nv50: improve vram page table construction drm/nv50: more efficient clearing of gpu page table entries drm/nv50: make nv50_mem_vm_{bind,unbind} operate only on vram drm/nouveau: Fix up pre-nv17 analog load detection.
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由 Hedi Berriche 提交于
Revert the change made to arch/ia64/sn/kernel/setup.c by commit 204fba4a as it breaks the build. Fixing the build the b94b0808 way breaks xpc because genksyms then fails to generate an CRC for per_cpu____sn_cnodeid_to_nasid because of limitations in the generic genksyms code. Signed-off-by: NHedi Berriche <hedi@sgi.com> Signed-off-by: NTony Luck <tony.luck@intel.com>
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- 23 2月, 2010 7 次提交
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由 Atsushi Nemoto 提交于
The netif_wake_queue() is called correctly (i.e. only on !txfull condition) from txdone routine. So Unconditional call to the netif_wake_queue() here is wrong. This might cause calling of start_xmit routine on txfull state and trigger BUG_ON. This bug does not happen when NAPI disabled. After txdone there must be at least one free tx slot. But with NAPI, this is not true anymore and the BUG_ON can hits on heavy load. In this driver NAPI was enabled on 2.6.33-rc1 so this is regression from 2.6.32 kernel. Reported-by: NRalf Roesch <ralf.roesch@rw-gmbh.de> Signed-off-by: NAtsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Torgny Johansson 提交于
This patch adds a new vid/pid to the cdc_ether whitelist. Device added: - Ericsson Mobile Broadband variant C3607w Signed-off-by: NTorgny Johansson <torgny.johansson@gmail.com> -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.htmlSigned-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Brian Haley 提交于
Andrew Morton wrote: >> >From ip-sysctl.txt file in kernel documentation I can see following description >> for max_addresses: >> max_addresses - INTEGER >> Number of maximum addresses per interface. 0 disables limitation. >> It is recommended not set too large value (or 0) because it would >> be too easy way to crash kernel to allow to create too much of >> autoconfigured addresses. ^^^^^^^^^^^^^^ >> If this parameter applies only for auto-configured IP addressed, please state >> it more clearly in docs or rename the parameter to show that it refers to >> auto-configuration. It did mention autoconfigured in the text, but the below makes it more obvious. More clearly document IPv6 max_addresses parameter. Signed-off-by: NBrian Haley <brian.haley@hp.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Lennert Buytenhek 提交于
I am no longer with Marvell. Signed-off-by: NLennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Anton Blanchard 提交于
Check for error return from pci_map_single/pci_map_page and clean up. With this and the previous patch the driver was able to handle a significant percentage of errors (I set the fault injection rate to 10% and could still download large files at a reasonable speed). Signed-off-by: NAnton Blanchard <anton@samba.org> Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Akinobu Mita 提交于
Now that the bio list management stuff is generic, convert generic_make_request to use bio lists instead of its own private bio list implementation. Signed-off-by: NAkinobu Mita <akinobu.mita@gmail.com> Cc: Christoph Hellwig <hch@infradead.org> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>