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* e1000e: fix error checksAdrian Bunk2007-10-16
| | | | | | | | Spotted by the Coverity checker. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* e1000e: Fix debug printk macroAuke Kok2007-10-16
| | | | | | | Spotted by Joe Perches. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* tokenring/3c359.c: fixed array index problemMarcus Meissner2007-10-16
| | | | | | | | | The xl_laa array is just 6 bytes long, so we should substract 10 from the index, like is also done some lines above already. Signed-Off-By: Marcus Meissner <meissner@suse.de> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [netdrvr] forcedeth: remove in-driver copy of net_device_statsJeff Garzik2007-10-16
| | | | | | | A copy of struct net_device_stats now lives in struct net_device, making in-driver copies a waste of memory. Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* [netdrvr] forcedeth: improved probe info; dev_printk() cleanupsJeff Garzik2007-10-16
| | | | | | | | | | | | | | | | | | | | | | | | main change: * greatly improve per-NIC probe diagnostic output. Similar to other net drivers, print out MAC address, PHY info, and various hardware and software flags that may be relevant. other changes: * similar to other net drivers, only print the initial version message when we have found at least one board. * don't bother to print error message when pci_enable_device() fails, it will do so for us. * use dev_printk() rather than printk() in nv_probe(). This gives use a standardized output similar to the rest of the kernel, and eliminates the need to manually print out PCI bus id. * use DRV_NAME constant where appropriate * clean struct pci_driver indentation Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* forcedeth: fix NAPI rx poll functionIngo Molnar2007-10-16
| | | | | | | | | | | | | | | | | | | | | | | | | fix the forcedeth NAPI poll function to not emit this warning: [ 186.635916] WARNING: at net/core/dev.c:2166 net_rx_action() [ 186.641351] [<c060d9f5>] net_rx_action+0x145/0x1b0 [ 186.646191] [<c011d752>] __do_softirq+0x42/0x90 [ 186.650784] [<c011d7c6>] do_softirq+0x26/0x30 [ 186.655202] [<c011db48>] local_bh_enable+0x48/0xa0 [ 186.660055] [<c06023e0>] lock_sock_nested+0xa0/0xc0 [ 186.664995] [<c065da16>] tcp_recvmsg+0x16/0xbc0 [ 186.669588] [<c013e94b>] __generic_file_aio_write_nolock+0x27b/0x520 [ 186.676001] [<c0601d75>] sock_common_recvmsg+0x45/0x70 [ 186.681202] [<c05ff5df>] sock_aio_read+0x11f/0x140 [ 186.686054] [<c015c086>] do_sync_read+0xc6/0x110 [ 186.690735] [<c012b9b0>] autoremove_wake_function+0x0/0x40 [ 186.696280] [<c060dcfc>] net_tx_action+0x3c/0xe0 [ 186.700961] [<c015c9c2>] vfs_read+0x132/0x140 [ 186.705378] [<c015cd41>] sys_read+0x41/0x70 [ 186.709625] [<c0102b66>] sysenter_past_esp+0x5f/0x89 [ 186.714651] ======================= Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* Merge master.kernel.org:/pub/scm/linux/kernel/git/bart/ide-2.6Linus Torvalds2007-10-16
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/bart/ide-2.6: (33 commits) amd74xx: remove /proc/ide/amd74xx amd74xx/via82cxxx: don't initialize drive->dn sis5513: remove /proc/ide/sis ide: remove CONFIG_IDEDMA_ONLYDISK ide: add "hdx=nodma" kernel parameter ide: remove hwif->autodma and drive->autodma ide: remove "idex=dma" kernel parameter ide: remove CONFIG_BLK_DEV_IDEDMA_FORCED ide: use PCI_VDEVICE() macro sis5513: clear prefetch and postwrite for ATAPI devices it8213/piix/slc90e66: "de-couple" PIO and UDMA modes ide: unexport noautodma ide: unexport ide_tune_dma ide: remove ->ide_dma_check (take 2) ide-pmac: add PIO autotune fallback to ->ide_dma_check ide-cris: add PIO autotune fallback to ->ide_dma_check sl82c105: add PIO autotune fallback to ->ide_dma_check cs5530/sc1200: add PIO autotune fallback to ->ide_dma_check ide: remove ide_use_fast_pio() ide: remove drive->init_speed zeroing ...
| * amd74xx: remove /proc/ide/amd74xxBartlomiej Zolnierkiewicz2007-10-16
| | | | | | | | | | | | | | | | | | | | This belongs to user-space (and only if really needed). text data bss dec hex filename 6723 2000 28 8751 222f drivers/ide/pci/amd74xx.o.before 3833 2000 16 5849 16d9 drivers/ide/pci/amd74xx.o.after Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * amd74xx/via82cxxx: don't initialize drive->dnBartlomiej Zolnierkiewicz2007-10-16
| | | | | | | | | | | | | | | | drive->dn is initialized by ide-probe.c::probe_hwif() so no need to do it in ->init_hwif method. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * sis5513: remove /proc/ide/sisBartlomiej Zolnierkiewicz2007-10-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This belongs to user-space (and only if really needed). text data bss dec hex filename 7129 404 8 7541 1d75 drivers/ide/pci/sis5513.o.before 3916 404 1 4321 10e1 drivers/ide/pci/sis5513.o.after Additionaly to being bloat the code contained two bugs: - wrong cable bit was checked (0x0001 instead of 0x8000) on ATA_133 chipsets - incorrect UDMA cycle time was reported on ATA_100a/ATA_133 chipsets Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * ide: remove CONFIG_IDEDMA_ONLYDISKBartlomiej Zolnierkiewicz2007-10-16
| | | | | | | | | | | | | | | | ATAPI devices with broken DMA support should be handled by DMA blacklist and for debugging purposes we have new shiny "hdx=nodma" kernel paremeter. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * ide: add "hdx=nodma" kernel parameterBartlomiej Zolnierkiewicz2007-10-16
| | | | | | | | | | | | | | | | | | * Add "hdx=nodma" option allowing user to disallow DMA for a given device. * Obsolete "ide=nodma" option. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * ide: remove hwif->autodma and drive->autodmaBartlomiej Zolnierkiewicz2007-10-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * hpt34x.c: disable DMA masks for HPT345 (hwif->autodma is zero so DMA won't be enabled anyway). * trm290.c: disable IDE_HFLAG_TRUST_BIOS_FOR_DMA flag (hwif->autodma is zero so DMA won't be enabled anyway). * Check noautodma global variable instead of drive->autodma in ide_tune_dma(). This fixes handling of "ide=nodma" kernel parameter for icside, ide-cris, au1xxx-ide, pmac, it821x, jmicron, sgiioc4 and siimage host drivers. * Remove hwif->autodma (it was not checked by IDE core code anyway) and drive->autodma (was set by all host drivers - except HPT345/TRM290 special cases - unless "ide=nodma" was used). While at it: - remove needless printk() from icside.c - remove stale FIXME/comment from ide-probe.c - don't force DMA off if PCI bus-mastering had to be enabled in setup-pci.c (this setting was always later over-ridden by host drivers anyway) Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * ide: remove "idex=dma" kernel parameterBartlomiej Zolnierkiewicz2007-10-16
| | | | | | | | | | | | | | | | | | It has been obsoleted since 1 Nov 2004, is valid only when used together with "ide=nodma" kernel parameter (which makes no sense) and only for aec62xx, cmd64x, cs5220, generic, hpt366, sl82c105, tc86c001 and triflex host drivers. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * ide: remove CONFIG_BLK_DEV_IDEDMA_FORCEDBartlomiej Zolnierkiewicz2007-10-16
| | | | | | | | | | | | | | | | | | This code doesn't use pci_assign_resource() and ide_get_or_set_dma_base() uses pci_resource_start() to get DMA base address so it has no chance of working. Moreover this belongs to PCI quirks (in case somebody would like to fix it). Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * ide: use PCI_VDEVICE() macroBartlomiej Zolnierkiewicz2007-10-16
| | | | | | | | | | | | | | | | | | While at it: - make struct pci_device_id tables const - use PCI_DEVICE_ID_ITE_8213 define in it8213.c - fix comment in generic.c Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * sis5513: clear prefetch and postwrite for ATAPI devicesBartlomiej Zolnierkiewicz2007-10-16
| | | | | | | | | | | | | | Clear prefetch and postwrite for ATAPI devices instead of depending on BIOS. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * it8213/piix/slc90e66: "de-couple" PIO and UDMA modesBartlomiej Zolnierkiewicz2007-10-16
| | | | | | | | | | | | | | Don't force PIO4 when programming UDMA mode (suggested by Sergei). Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * ide: unexport noautodmaAdrian Bunk2007-10-16
| | | | | | | | | | | | | | | | noautodma can now be unexported. Signed-off-by: Adrian Bunk <bunk@kernel.org> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * ide: unexport ide_tune_dmaAdrian Bunk2007-10-16
| | | | | | | | | | | | | | | | static code mustn't be exported. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * ide: remove ->ide_dma_check (take 2)Bartlomiej Zolnierkiewicz2007-10-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Add IDE_HFLAG_TRUST_BIOS_FOR_DMA host flag for host drivers that depend on BIOS for programming device/controller for DMA. Set it in cy82c693, generic, ns87415, opti621 and trm290 host drivers. * Add IDE_HFLAG_VDMA host flag for host drivers using VDMA. Set it in cs5520 host driver. * Teach ide_tune_dma() about IDE_HFLAG_TRUST_BIOS_FOR_DMA flag. * Add generic ide_dma_check() helper and remove all open coded ->ide_dma_check implementations. Fix all places checking for presence of ->ide_dma_check hook to check for ->ide_dma_on instead. * Remove no longer needed code from config_drive_for_dma(). * Make ide_tune_dma() static. v2: * Fix config_drive_for_dma() return values. * Fix ide-dma.c build for CONFIG_BLK_DEV_IDEDMA_PCI=n by adding dummy config_drive_for_dma() inline. * Fix IDE_HFLAG_TRUST_BIOS_FOR_DMA handling in ide_dma_check(). * Fix init_hwif_it8213() comment. There should be no functionality changes caused by this patch. Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * ide-pmac: add PIO autotune fallback to ->ide_dma_checkBartlomiej Zolnierkiewicz2007-10-16
| | | | | | | | | | | | | | | | | | | | Since ide-pmac allows separate PIO and DMA timings, and ide-pmac always sets ->autotune this change shouldn't have any other effect than bringing ide-pmac driver in-line with other host drivers wrt ->ide_dma_check implementation. Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * ide-cris: add PIO autotune fallback to ->ide_dma_checkBartlomiej Zolnierkiewicz2007-10-16
| | | | | | | | | | | | | | | | | | | | Since ide-cris allows separate PIO and DMA timings, and ide-cris always sets ->autotune this change shouldn't have any other effect than bringing ide-cris driver in-line with other host drivers wrt ->ide_dma_check implementation. Cc: Mikael Starvik <starvik@axis.com> Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * sl82c105: add PIO autotune fallback to ->ide_dma_checkBartlomiej Zolnierkiewicz2007-10-16
| | | | | | | | | | | | | | | | Since sl82c105 re-programs DMA/PIO timings for DMA enable/disable, and sets ->autotune this change shouldn't have any other effect than bringing sl82c105 driver in-line with other host drivers wrt ->ide_dma_check implementation. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * cs5530/sc1200: add PIO autotune fallback to ->ide_dma_checkBartlomiej Zolnierkiewicz2007-10-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Add PIO autotune fallback to ->ide_dma_check. Since cs5530/sc1200 allow separate PIO and DMA timings, and cs5530/sc1200 always set ->autotune this change shouldn't have any other effect than bringing these drivers in-line with other host drivers wrt ->ide_dma_check implementations. * Fix ->ide_dma_check to return "-1" if DMA cannot be set. * Bump driver version. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * ide: remove ide_use_fast_pio()Bartlomiej Zolnierkiewicz2007-10-16
| | | | | | | | | | | | | | | | | | | | Remove ide_use_fast_pio() and just re-tune PIO unconditionally if DMA tuning has failed in ->ide_dma_check. All host drivers using ide_use_fast_pio() set drive->autotune so PIO is always tuned anyway and in some cases we _really_ need to re-tune PIO because PIO and DMA timings are shared. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * ide: remove drive->init_speed zeroingBartlomiej Zolnierkiewicz2007-10-16
| | | | | | | | | | | | | | | | Several host drivers used to reset drive->init_speed in their ->ide_dma_check implementations which resulted in incorrect init speed being reported to the user, fix it. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * au1xxx-ide: use ide_tune_dma()Bartlomiej Zolnierkiewicz2007-10-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Remove needless setting of drive->using_dma from auide_dma_check(). * Split off auide_mdma_filter() from auide_dma_check(). * Use ide_tune_dma() in auide_dma_check(), this fixes following issues: - device's DMA capability bit not being checked - device not being checked against generic DMA blacklist - transfer mode not being set on device/host * Add PIO autotune fallback to auide_dma_check(). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * it8213/piix/slc90e66: remove {it8213,piix,slc90e66}_dma_2_pio()Bartlomiej Zolnierkiewicz2007-10-16
| | | | | | | | | | Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * atiixp: DMA setup fixesBartlomiej Zolnierkiewicz2007-10-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Fix handling of unsupported/invalid modes in atiixp_set_dma_mode(). * ATI controllers allow separate PIO and DMA timings so remove programming of PIO modes from atiixp_set_dma_mode(). Also remove no longer needed atiixp_dma_2_pio() helper. * SWDMA timings are not programmed by atiixp_set_dma_mode() and if SWDMA mode is chosen atiixp_dma_host_on() erroneously enables UDMA, just disable support for SWDMA modes for now. * Enable support for MWDMA0 mode. * Bump driver version. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * sc1200: always tune PIOBartlomiej Zolnierkiewicz2007-10-16
| | | | | | | | | | Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * cs5530: always tune PIOBartlomiej Zolnierkiewicz2007-10-16
| | | | | | | | Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * ide-cris: always tune PIOBartlomiej Zolnierkiewicz2007-10-16
| | | | | | | | | | | | Acked-by: Mikael Starvik <starvik@axis.com> Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * slc90e66: always tune PIOBartlomiej Zolnierkiewicz2007-10-16
| | | | | | | | | | Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * aec62xx: always tune PIOBartlomiej Zolnierkiewicz2007-10-16
| | | | | | | | | | Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * sis5513: always tune PIOBartlomiej Zolnierkiewicz2007-10-16
| | | | | | | | | | | | | | | | | | | | | | * Always set ->autotune in init_hwif_sis5513(), this means practically no change in behavior since PIO was always tuned in ->ide_dma_check and >autotune was always set for ->dma_base == 0 case. * Bump driver version. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * sis5513: DMA setup fixesBartlomiej Zolnierkiewicz2007-10-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Add sis_ata133_get_base() helper function for obtaining the address of the drive control registers on chipset_family == ATA_133 chipsets. * Add three helper functions for programming PIO/MWDMA timings: - sis_ata16_program_timings() (for ATA_16/33/66/100a chipset families) - sis_ata100_program_timings() (for ATA_100/133a chipset families) - sis_ata133_program_timings() (for ATA_133 chipset family) MWDMA timings are taken from datasheets and they match ATA spec. * Add generic helper function sis_program_timings() and use it in ->set_pio_mode and ->set_dma_mode methods (previously the driver depended on BIOS to program the correct MWDMA timings). * Remove redundant !chipset_family check from init_hwif_sis5513() (init_chipset_sis5513() guarantees that we will never get here if chipset_family cannot be determined). * SWDMA seems to be unsupported by SiS chipsets (no info about SWDMA in datasheets and for SWDMA0 mode timing requirements are impossible to fulfill) so remove ->swdma_mask from init_hwif_sis5513() and handling of SWDMA modes from sis_set_dma_mode(). * Enable DMA support for chipset_family == ATA_16. * Bump driver version. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * hpt366: always tune PIOBartlomiej Zolnierkiewicz2007-10-16
| | | | | | | | | | Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * ide-cs: Add additional id string (corsair, 1GB)Kristoffer Ericson2007-10-16
| | | | | | | | | | | | | | | | | | | | This patch adds id strings for Corsair 1GB (identified as Hyperstone Model1) inside legacy/ide-cs.c. It also includes some minor whitespace cleanups. Signed-off-by: Kristoffer Ericson <kristoffer.ericson@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * ide: fix serverworks.c UDMA regressionTony Battersby2007-10-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The patch described by the following excerpt from ChangeLog-2.6.22 makes it impossible to use UDMA on a Tyan S2707 motherboard (SvrWks CSB5): commit 2d5eaa6dd744a641e75503232a01f52d0768884c Author: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Date: Thu May 10 00:01:08 2007 +0200 ide: rework the code for selecting the best DMA transfer mode (v3) ... This one-line patch against 2.6.23 fixes the problem. Signed-off-by: Tony Battersby <tonyb@cybernetics.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* | fix cirrusfb breakageAl Viro2007-10-16
| | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Merge branch 'for-linus' of ↵Linus Torvalds2007-10-16
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/selinux-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/selinux-2.6: SELinux: kills warnings in Improve SELinux performance when AVC misses SELinux: improve performance when AVC misses. SELinux: policy selectable handling of unknown classes and perms SELinux: Improve read/write performance SELinux: tune avtab to reduce memory usage
| * | SELinux: kills warnings in Improve SELinux performance when AVC missesKaiGai Kohei2007-10-16
| | | | | | | | | | | | | | | | | | | | | | | | This patch kills ugly warnings when the "Improve SELinux performance when ACV misses" patch. Signed-off-by: KaiGai Kohei <kaigai@ak.jp.nec.com> Signed-off-by: James Morris <jmorris@namei.org>
| * | SELinux: improve performance when AVC misses.KaiGai Kohei2007-10-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * We add ebitmap_for_each_positive_bit() which enables to walk on any positive bit on the given ebitmap, to improve its performance using common bit-operations defined in linux/bitops.h. In the previous version, this logic was implemented using a combination of ebitmap_for_each_bit() and ebitmap_node_get_bit(), but is was worse in performance aspect. This logic is most frequestly used to compute a new AVC entry, so this patch can improve SELinux performance when AVC misses are happen. * struct ebitmap_node is redefined as an array of "unsigned long", to get suitable for using find_next_bit() which is fasted than iteration of shift and logical operation, and to maximize memory usage allocated from general purpose slab. * Any ebitmap_for_each_bit() are repleced by the new implementation in ss/service.c and ss/mls.c. Some of related implementation are changed, however, there is no incompatibility with the previous version. * The width of any new line are less or equal than 80-chars. The following benchmark shows the effect of this patch, when we access many files which have different security context one after another. The number is more than /selinux/avc/cache_threshold, so any access always causes AVC misses. selinux-2.6 selinux-2.6-ebitmap AVG: 22.763 [s] 8.750 [s] STD: 0.265 0.019 ------------------------------------------ 1st: 22.558 [s] 8.786 [s] 2nd: 22.458 [s] 8.750 [s] 3rd: 22.478 [s] 8.754 [s] 4th: 22.724 [s] 8.745 [s] 5th: 22.918 [s] 8.748 [s] 6th: 22.905 [s] 8.764 [s] 7th: 23.238 [s] 8.726 [s] 8th: 22.822 [s] 8.729 [s] Signed-off-by: KaiGai Kohei <kaigai@ak.jp.nec.com> Acked-by: Stephen Smalley <sds@tycho.nsa.gov> Signed-off-by: James Morris <jmorris@namei.org>
| * | SELinux: policy selectable handling of unknown classes and permsEric Paris2007-10-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Allow policy to select, in much the same way as it selects MLS support, how the kernel should handle access decisions which contain either unknown classes or unknown permissions in known classes. The three choices for the policy flags are 0 - Deny unknown security access. (default) 2 - reject loading policy if it does not contain all definitions 4 - allow unknown security access The policy's choice is exported through 2 booleans in selinuxfs. /selinux/deny_unknown and /selinux/reject_unknown. Signed-off-by: Eric Paris <eparis@redhat.com> Acked-by: Stephen Smalley <sds@tycho.nsa.gov> Signed-off-by: James Morris <jmorris@namei.org>
| * | SELinux: Improve read/write performanceYuichi Nakamura2007-10-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It reduces the selinux overhead on read/write by only revalidating permissions in selinux_file_permission if the task or inode labels have changed or the policy has changed since the open-time check. A new LSM hook, security_dentry_open, is added to capture the necessary state at open time to allow this optimization. (see http://marc.info/?l=selinux&m=118972995207740&w=2) Signed-off-by: Yuichi Nakamura<ynakam@hitachisoft.jp> Acked-by: Stephen Smalley <sds@tycho.nsa.gov> Signed-off-by: James Morris <jmorris@namei.org>
| * | SELinux: tune avtab to reduce memory usageYuichi Nakamura2007-10-16
| |/ | | | | | | | | | | | | | | | | | | | | | | This patch reduces memory usage of SELinux by tuning avtab. Number of hash slots in avtab was 32768. Unused slots used memory when number of rules is fewer. This patch decides number of hash slots dynamically based on number of rules. (chain length)^2 is also printed out in avtab_hash_eval to see standard deviation of avtab hash table. Signed-off-by: Yuichi Nakamura<ynakam@hitachisoft.jp> Acked-by: Stephen Smalley <sds@tycho.nsa.gov> Signed-off-by: James Morris <jmorris@namei.org>
* | Merge branch 'for-linus' of ↵Linus Torvalds2007-10-16
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: (25 commits) firewire: fw-cdev: reorder wakeup vs. spinlock firewire: in-code doc updates. firewire: a header cleanup firewire: adopt read cycle timer ABI from raw1394 firewire: fw-ohci: check for misconfigured bus (phyID == 63) firewire: fw-ohci: missing dma_unmap_single firewire: fw-ohci: log posted write errors firewire: fw-ohci: reorder includes firewire: fw-ohci: fix includes firewire: fw-ohci: enforce read order for selfID generation firewire: fw-sbp2: use an own workqueue (fix system responsiveness) firewire: fw-sbp2: expose module parameter for workarounds firewire: fw-sbp2: add support for multiple logical units per target firewire: fw-sbp2: always enable IRQs before calling command ORB callback firewire: fw-core: local variable shadows a global one firewire: optimize fw_core_add_address_handler ieee1394: ieee1394_core.c: use DEFINE_SPINLOCK for spinlock definition ieee1394: csr1212: proper refcounting ieee1394: nodemgr: fix leak of struct csr1212_keyval ieee1394: pcilynx: I2C cleanups ...
| * | firewire: fw-cdev: reorder wakeup vs. spinlockJay Fenlason2007-10-16
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Jay Fenlason <fenlason@redhat.com> Prompted by https://bugzilla.redhat.com/show_bug.cgi?id=323411 Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
| * | firewire: in-code doc updates.Yann Dirson2007-10-16
| | | | | | | | | | | | | | | Signed-off-by: Yann Dirson <ydirson@altern.org> Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> (update)
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