- 30 4月, 2007 14 次提交
-
-
由 Jens Axboe 提交于
Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
-
由 Jens Axboe 提交于
We don't enable it by default, don't let it get enabled during runtime. Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
-
由 Jens Axboe 提交于
We can track it fairly accurately locally, let the slice handling take care of the rest. Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
-
由 Jens Axboe 提交于
We don't use it anymore in the slice expiry handling. Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
-
由 Jens Axboe 提交于
It's only used for preemption now that the IDLE and RT queues also use the rbtree. If we pass an 'add_front' variable to cfq_service_tree_add(), we can set ->rb_key to 0 to force insertion at the front of the tree. Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
-
由 Jens Axboe 提交于
Use the max_slice-cur_slice as the multipler for the insertion offset. Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
-
由 Jens Axboe 提交于
Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
-
由 Jens Axboe 提交于
Same treatment as the RT conversion, just put the sorted idle branch at the end of the tree. Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
-
由 Jens Axboe 提交于
Currently CFQ does a linked insert into the current list for RT queues. We can just factor the class into the rb insertion, and then we don't have to treat RT queues in a special way. It's faster, too. Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
-
由 Jens Axboe 提交于
For cases where the rbtree is mainly used for sorting and min retrieval, a nice speedup of the rbtree code is to maintain a cache of the leftmost node in the tree. Also spotted in the CFS CPU scheduler code. Improved by Alan D. Brunelle <Alan.Brunelle@hp.com> by updating the leftmost hint in cfq_rb_first() if it isn't set, instead of only updating it on insert. Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
-
由 Jens Axboe 提交于
Drawing on some inspiration from the CFS CPU scheduler design, overhaul the pending cfq_queue concept list management. Currently CFQ uses a doubly linked list per priority level for sorting and service uses. Kill those lists and maintain an rbtree of cfq_queue's, sorted by when to service them. This unfortunately means that the ionice levels aren't as strong anymore, will work on improving those later. We only scale the slice time now, not the number of times we service. This means that latency is better (for all priority levels), but that the distinction between the highest and lower levels aren't as big. The diffstat speaks for itself. cfq-iosched.c | 363 +++++++++++++++++--------------------------------- 1 file changed, 125 insertions(+), 238 deletions(-) Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
-
由 Jens Axboe 提交于
- Move the queue_new flag clear to when the queue is selected - Only select the non-first queue in cfq_get_best_queue(), if there's a substantial difference between the best and first. - Get rid of ->busy_rr - Only select a close cooperator, if the current queue is known to take a while to "think". Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
-
由 Jens Axboe 提交于
- Implement logic for detecting cooperating processes, so we choose the best available queue whenever possible. - Improve residual slice time accounting. - Remove dead code: we no longer see async requests coming in on sync queues. That part was removed a long time ago. That means that we can also remove the difference between cfq_cfqq_sync() and cfq_cfqq_class_sync(), they are now indentical. And we can kill the on_dispatch array, just make it a counter. - Allow a process to go into the current list, if it hasn't been serviced in this scheduler tick yet. Possible future improvements including caching the cfqq lookup in cfq_close_cooperator(), so we don't have to look it up twice. cfq_get_best_queue() should just use that last decision instead of doing it again. Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
-
由 Jens Axboe 提交于
When testing the syslet async io approach, I discovered that CFQ sometimes didn't perform as well as expected. cfq_should_preempt() needs to better check for cooperating tasks, so fix that by allowing preemption of an equal priority queue if the recently queued request is as good a candidate for IO as the one we are currently waiting for. Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
-
- 28 4月, 2007 26 次提交
-
-
由 Linus Torvalds 提交于
* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6: sis900: Allocate rx replacement buffer before rx operation usb-net/pegasus: simplify carrier detection
-
由 Neil Horman 提交于
Just found a hole in my last patch. It was reported to me that shortly after we integrated this patch. The report was of an oops that took place inside of netif_rx when using the sis900 driver. Looking at my origional patch I noted that there was a spot between the new skb_alloc and the refill_rx_ring label where skb got reassigned to the pointer currently held in the rx_ring for the purposes of receiveing the frame. The result of this is however that the buffer that gets passed to netif_rx (if it is called), then gets placed right back into the rx_ring. So if you receive frames fast enough the skb being processed by the network stack can get corrupted. The reporter is testing out the fix I've written for this below (I'm not near my hardware at the moment to test myself), but I wanted to post it for review ASAP. I'll post test results when I hear them, but I think this is a pretty straightforward fix. It just uses a separate pointer to do the rx operation, so that we don't improperly reassign the pointer that we use to refill the rx ring. Signed-off-by: NNeil Horman <nhorman@tuxdriver.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
-
由 Dan Williams 提交于
Simplify pegasus carrier detection; rely only on the periodic MII polling. Reverts pieces of c43c49bd. Signed-off-by: NDan Williams <dcbw@redhat.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
-
由 Linus Torvalds 提交于
* master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6: [SCSI] esp_scsi.c: Fix compilation.
-
由 Linus Torvalds 提交于
* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: [NET]: Fix networking compilation errors [AF_RXRPC/AFS]: Arch-specific fixes. [AFS]: Fix VLocation record update wakeup [NET]: Revert sk_buff walker cleanups.
-
git://git.infradead.org/mtd-2.6由 Linus Torvalds 提交于
* git://git.infradead.org/mtd-2.6: (46 commits) [MTD] [MAPS] drivers/mtd/maps/ck804xrom.c: convert pci_module_init() [MTD] [NAND] CM-x270 MTD driver [MTD] [NAND] Wrong calculation of page number in nand_block_bad() [MTD] [MAPS] fix plat-ram printk format [JFFS2] Fix compr_rubin.c build after include file elimination. [JFFS2] Handle inodes with only a single metadata node with non-zero isize [JFFS2] Tidy up licensing/copyright boilerplate. [MTD] [OneNAND] Exit loop only when column start with 0 [MTD] [OneNAND] Fix access the past of the real oobfree array [MTD] [OneNAND] Update Samsung OneNAND official URL [JFFS2] Better fix for all-zero node headers [JFFS2] Improve read_inode memory usage, v2. [JFFS2] Improve failure mode if inode checking leaves unchecked space. [JFFS2] Fix cross-endian build. [MTD] Finish conversion mtd_blkdevs to use the kthread API [JFFS2] Obsolete dirent nodes immediately on unlink, where possible. Use menuconfig objects: MTD [MTD] mtd_blkdevs: Convert to use the kthread API [MTD] Fix fwh_lock locking [JFFS2] Speed up mount for directly-mapped NOR flash ...
-
由 Adrian Bunk 提交于
This patch converts the pci_module_init() usage to pci_register_driver(). It's currently #if 0'ed, but still not a bad idea to change it. Signed-off-by: NAdrian Bunk <bunk@stusta.de> Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
-
由 David Howells 提交于
Fix miscellaneous networking compilation errors. (*) Export ktime_add_ns() for modules. (*) wext_proc_init() should have an ANSI declaration. Signed-off-by: NDavid Howells <dhowells@redhat.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 David Howells 提交于
Fixes for various arch compilation problems: (*) Missing module exports. (*) Variable name collision when rxkad and af_rxrpc both built in (rxrpc_debug). (*) Large constant representation problem (AFS_UUID_TO_UNIX_TIME). (*) Configuration dependencies. (*) printk() format warnings. Signed-off-by: NDavid Howells <dhowells@redhat.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 David Howells 提交于
Fix the wakeup transitions after a VLocation record update completes one way or another. This builds on Dave Miller's partial fix. Also move wakeups outside the spinlocked sections. Signed-off-by: NDavid Howells <dhowells@redhat.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 David S. Miller 提交于
This reverts eefa3906 The simplification made in that change works with the assumption that the 'offset' parameter to these functions is always positive or zero, which is not true. It can be and often is negative in order to access SKB header values in front of skb->data. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Alexey Dobriyan 提交于
irqreturn.h for irqreturn_t and dma_addr_t being u128 warnings ;-) Signed-off-by: NAlexey Dobriyan <adobriyan@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Mike Rapoport 提交于
This patch provides MTD support for NAND flash devices on CM-x270 modules. Signed-off-by: NMike Rapoport <mike@compulab.co.il> Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
-
由 Linus Torvalds 提交于
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/usb-2.6: (78 commits) USB: update MAINAINERS and CREDITS for Freescale USB driver USB: update gadget files for fsl_usb2_udc driver USB: add Freescale high-speed USB SOC device controller driver USB: quirk for broken suspend of IT8152F/G USB: iowarrior.c: timeouts too small in usb_control_msg calls USB: dell device id for option.c USB: Remove Huawei unusual_devs entry USB: CP2101 New Device IDs USB: add picdem device to ldusb usbfs micro optimitation USB: remove ancient/broken CRIS hcd usb ethernet gadget, workaround network stack API glitch USB: add "busnum" attribute for USB devices USB: cxacru: ADSL state management usbatm: Detect usb device shutdown and ignore failed urbs USB: Remove duplicate define of OHCI_QUIRK_ZFMICRO USB: BandRich BandLuxe HSDPA Data Card Driver USB gadget rndis: fix struct rndis_packet_msg_type unaligned bug USB Elan FTDI: check for driver registration status USB: sierra: add more checks on shutdown ...
-
ssh://master.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb由 Linus Torvalds 提交于
* 'master' of ssh://master.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb: (184 commits) V4L/DVB (5563): Radio-maestro.c Replace radio_ioctl to use video_ioctl2 V4L/DVB (5562): Radio-gemtek-pci.c Replace gemtek_pci_ioctl to use video_ioctl2 V4L/DVB (5560): Ivtv: fix incorrect bitwise-and for command flags. V4L/DVB (5558): Opera: use 7-bit i2c addresses V4L/DVB (5557): Cafe_ccic: check return value of pci_enable_device V4L/DVB (5556): Radio-gemtek.c Replace gemtek_ioctl to use video_ioctl2 V4L/DVB (5555): Radio-aimslab.c Replace rt_ioctl to use video_ioctl2 V4L/DVB (5554): Fix: vidioc_g_parm were not zeroing the memory V4L/DVB (5553): Replace typhoon_do_ioctl to use video_ioctl2 V4L/DVB (5552): Plan-b: Switch to refcounting PCI API V4L/DVB (5551): Plan-b: header change V4L/DVB (5550): Radio-sf16fmi.c Replace fmi_do_ioctl to use video_ioctl2 V4L/DVB (5549): Radio-sf16fmr2.c Replace fmr2_do_ioctl to use video_ioctl2 V4L/DVB (5548): Fix v4l2 buffer to the length V4L/DVB (5547): Add ENUM_FRAMESIZES and ENUM_FRAMEINTERVALS ioctls V4L/DVB (5546): Radio-terratec.c Replace tt_do_ioctl to use video_ioctl2 V4L/DVB (5545): Saa7146: Release capture buffers on device close V4L/DVB (5544): Budget-av: Make inversion setting configurable, add KNC ONE V1.0 card V4L/DVB (5543): Tda10023: Add support for frontend TDA10023 V4L/DVB (5542): Budget-av: Remove polarity switching of the clock for DVB-C ...
-
由 Li Yang 提交于
Add MAINAINERS and CREDITS entry for Freescale Highspeed USB device driver. Signed-off-by: NLi Yang <leoli@freescale.com> Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
-
由 Li Yang 提交于
Update gadget_chip.c, ether.c for newly added Freescale Highspeed USB device driver. Signed-off-by: NLi Yang <leoli@freescale.com> Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
-
由 Li Yang 提交于
Freescale high-speed USB SOC can be found on some Freescale processors among different architectures. It supports both host and device functions. This driver adds its device support for Linux USB Gadget layer. It is tested on MPC8349 and MPC8313, but should work on other platforms with minor tweaks. The driver passed USBCV 1.3 compliance tests. Note that this driver doesn't yet include OTG support. Signed-off-by: NLi Yang <leoli@freescale.com> Signed-off-by: NJiang Bo <tanya.jiang@freescale.com> Signed-off-by: NBruce Schmid <duck@freescale.com> Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
-
由 Raphael Assenat 提交于
Here's a patch which adds my device to the list. This patch enables the broken suspend quirk for the PCI OHCI controller present in the IT8152F/G RISC-to-PCI Companion Chip. Signed-off-by: NRaphael Assenat <raph@8d.com> Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
-
由 Eberhard Fahle 提交于
The driver uses usb_control_msg() for exchanging data with the device. When the driver lived freeley _outside_ the kernel tree (pre 2.6.21) the timeouts for these calls where set to 5*HZ for reading, 1HZ for writing. (These timeouts seemed to work fine for all users of the driver, at least nobody complained in the last 2 years. The current code (2.6.21-rc5) removed the 'HZ' from the timeouts and left the driver with 5 jiffies for reading and 1 jiffy for writing. My new machine is fast, but not that fast. The patch also removes a useless debug statement, which was left over from testing a broken firmware version From: Eberhard Fahle <e.fahle@wayoda.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
-
由 Hans Engelen 提交于
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
-
由 Phil Dibowitz 提交于
Per the Rui Santos and the hardware manufacturers, this actually inhibits useful parts of the hardware. The correct way to use this hardware is with the software at http://www.kanoistika.sk/bobovsky/archiv/umts/ and the manufacturers are also planning on including Linux drivers/material in future revisions. CC: Rui Santos <rsantos@grupopie.com> CC: <johann.wilhelm@student.tugraz.at> CC: <zihan@huawei.com> CC: <wanganyu1983@huawei.com> CC: <dingjianjian@huawei.com> Signed-off-by: NPhil Dibowitz <phil@ipom.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
-
由 Craig Shelley 提交于
Two new device IDs for CP2101 driver. Signed-off-by: NCraig Shelley <craig@microtron.org.uk> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
-
由 Joey Goncalves 提交于
Hi Greg: I have found that /drivers/usb/misc/ldusb.c works with the "PICDEM Full Speed USB" http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=1406&dDocName=en021940Signed-off-by: NJoey S Goncalves <jgoncalves@peragrin.com> Cc: Michael Hund <MHund@LD-Didactic.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
-
由 Oliver Neukum 提交于
the memory barrier is needed only with smp. Signed-off-by: NOliver Neukum <oneukum@suse.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
-
由 David Brownell 提交于
Remove the old crisv10 HCD ... it can't have built for some time, doesn't even have a Kconfig entry, was the last driver not to have been converted to the "hcd" framework, and considering the usbcore changes since its last patch was merged, has just got to buggy as all get-out. I'm told Axis has a new driver, and will be submitting it soon. Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net> Cc: Mikael Starvik <mikael.starvik@axis.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
-