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2011-02-16workqueue: make sure MAYDAY_INITIAL_TIMEOUT is at least 2 jiffies longTejun Heo1-1/+3
MAYDAY_INITIAL_TIMEOUT is defined as HZ / 100 and depending on configuration may end up 0 or 1. Even when it's 1, depending on when the mayday timer is added in the current jiffy interval, it may expire way before a jiffy has passed. Make sure MAYDAY_INITIAL_TIMEOUT is at least two to guarantee that at least a full jiffy has passed before calling rescuers. Signed-off-by: Tejun Heo <[email protected]> Reported-by: Ray Jui <[email protected]> Cc: [email protected]
2011-02-16Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6Linus Torvalds19-1256/+278
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6: [SCSI] qla2xxx: Return DID_NO_CONNECT when FC device is lost. [SCSI] mptfusion: Bump version 03.04.18 [SCSI] mptfusion: Fix Incorrect return value in mptscsih_dev_reset [SCSI] mptfusion: mptctl_release is required in mptctl.c [SCSI] target: fix use after free detected by SLUB poison [SCSI] target: Remove procfs based target_core_mib.c code [SCSI] target: Fix SCF_SCSI_CONTROL_SG_IO_CDB breakage [SCSI] target: Fix top-level configfs_subsystem default_group shutdown breakage [SCSI] target: fixed missing lock drop in error path [SCSI] target: Fix demo-mode MappedLUN shutdown UA/PR breakage [SCSI] target/iblock: Fix failed bd claim NULL pointer dereference [SCSI] target: iblock/pscsi claim checking for NULL instead of IS_ERR [SCSI] scsi_debug: Fix 32-bit overflow in do_device_access causing memory corruption [SCSI] qla2xxx: Change from irq to irqsave with host_lock [SCSI] qla2xxx: Fix race that could hang kthread_stop()
2011-02-16Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Linus Torvalds1-0/+1
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: sha-s390 - Reset index after processing partial block
2011-02-16vfs: fix BUG_ON() in fs/namei.c:1461Linus Torvalds1-5/+4
When Al moved the nameidata_dentry_drop_rcu_maybe() call into the do_follow_link function in commit 844a391799c2 ("nothing in do_follow_link() is going to see RCU"), he mistakenly left the BUG_ON(inode != path->dentry->d_inode); behind. Which would otherwise be ok, but that BUG_ON() really needs to be _after_ dropping RCU, since the dentry isn't necessarily stable otherwise. So complete the code movement in that commit, and move the BUG_ON() into do_follow_link() too. This means that we need to pass in 'inode' as an argument (just for this one use), but that's a small thing. And eventually we may be confident enough in our path lookup that we can just remove the BUG_ON() and the unnecessary inode argument. Reported-and-tested-by: Eric Dumazet <[email protected]> Acked-by: Al Viro <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2011-02-16workqueue, freezer: unify spelling of 'freeze' + 'able' to 'freezable'Tejun Heo17-35/+35
There are two spellings in use for 'freeze' + 'able' - 'freezable' and 'freezeable'. The former is the more prominent one. The latter is mostly used by workqueue and in a few other odd places. Unify the spelling to 'freezable'. Signed-off-by: Tejun Heo <[email protected]> Reported-by: Alan Stern <[email protected]> Acked-by: "Rafael J. Wysocki" <[email protected]> Acked-by: Greg Kroah-Hartman <[email protected]> Acked-by: Dmitry Torokhov <[email protected]> Cc: David Woodhouse <[email protected]> Cc: Alex Dubov <[email protected]> Cc: "David S. Miller" <[email protected]> Cc: Steven Whitehouse <[email protected]>
2011-02-16hwmon: (jc42) do not allow writing to locked registersClemens Ladisch2-8/+37
On systems where the temperature sensor is actually used, the BIOS is likely to have locked the alarm registers. In that case, all writes through the corresponding sysfs files would be silently ignored. To prevent this, detect the locks and make the affected sysfs files read-only. Signed-off-by: Clemens Ladisch <[email protected]> Cc: [email protected] Signed-off-by: Guenter Roeck <[email protected]>
2011-02-16hwmon: (jc42) more helpful documentationClemens Ladisch2-7/+13
The documentation lists standard numbers and chip names in excruciating detail, but that's all it does. To help mere mortals in deciding whether to enable this driver, mention what this sensor is for and in which systems it might be found. Also add a link to the actual JC 42.4 specification. Signed-off-by: Clemens Ladisch <[email protected]> Cc: [email protected] Signed-off-by: Guenter Roeck <[email protected]>
2011-02-16hwmon: (jc42) fix type mismatchClemens Ladisch1-1/+1
In set_temp_crit_hyst(), make the variable 'val' have the correct type for strict_strtoul(). Signed-off-by: Clemens Ladisch <[email protected]> Cc: [email protected] Signed-off-by: Guenter Roeck <[email protected]>
2011-02-15Linux 2.6.38-rc5Linus Torvalds1-1/+1
2011-02-15Merge branch 'for-linus' of ↵Linus Torvalds18-69/+165
git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu: m68knommu: set flow handler for secondary interrupt controller of 5249 m68knommu: remove use of IRQ_FLG_LOCK from 68360 platform support m68knommu: fix dereference of port.tty m68knommu: add missing linker __modver section m68knommu: fix mis-named variable int set_irq_chip loop m68knommu: add optimize memmove() function m68k: remove arch specific non-optimized memcmp() m68knommu: fix use of un-defined _TIF_WORK_MASK m68knommu: Rename m548x_wdt.c to m54xx_wdt.c m68knommu: fix m548x_wdt.c compilation after headers renaming m68knommu: Remove dependencies on nonexistent M68KNOMMU
2011-02-16m68knommu: set flow handler for secondary interrupt controller of 5249Greg Ungerer1-1/+3
The secondary interrupt controller of the ColdFire 5249 code is not setting the edge triggered flow handler. Set it. Signed-off-by: Greg Ungerer <[email protected]>
2011-02-16m68knommu: remove use of IRQ_FLG_LOCK from 68360 platform supportGreg Ungerer2-2/+2
The m68knommu arch does not define or use IRQ_FLG_LOCK in its irq subsystem. Remove obsolete use of it. Signed-off-by: Greg Ungerer <[email protected]>
2011-02-16m68knommu: fix dereference of port.ttyGreg Ungerer1-15/+14
The struct_tty associated with a port is now a direct pointer from within the local private driver info struct. So fix all uses of it. Signed-off-by: Greg Ungerer <[email protected]>
2011-02-16m68knommu: add missing linker __modver sectionGreg Ungerer1-0/+6
Add missing linker section __modver to fix: LD vmlinux /usr/local/bin/../m68k-uclinux/bin/ld.real: error: no memory region specified for loadable section `__modver' Signed-off-by: Greg Ungerer <[email protected]>
2011-02-16m68knommu: fix mis-named variable int set_irq_chip loopGreg Ungerer1-2/+2
Compiling for 68360 targets gives: CC arch/m68knommu/platform/68360/ints.o arch/m68knommu/platform/68360/ints.c: In function ‘init_IRQ’: arch/m68knommu/platform/68360/ints.c:135:16: error: ‘irq’ undeclared (first use in this function) arch/m68knommu/platform/68360/ints.c:135:16: note: each undeclared identifier is reported only once for each function it appears in Fix variable name used. Signed-off-by: Greg Ungerer <[email protected]>
2011-02-16m68knommu: add optimize memmove() functionGreg Ungerer3-2/+107
Add an m68k/coldfire optimized memmove() function for the m68knommu arch. This is the same function as used by m68k. Simple speed tests show this is faster once buffers are larger than 4 bytes, and significantly faster on much larger buffers (4 times faster above about 100 bytes). This also goes part of the way to fixing a regression caused by commit ea61bc461d09e8d331a307916530aaae808c72a2 ("m68k/m68knommu: merge MMU and non-MMU string.h"), which breaks non-coldfire non-mmu builds (which is the 68x328 and 68360 families). They currently have no memmove() fucntion defined, since there was none in the m68knommu/lib functions. Signed-off-by: Greg Ungerer <[email protected]>
2011-02-16m68k: remove arch specific non-optimized memcmp()Greg Ungerer2-14/+1
The m68k arch implements its own memcmp() function. It is not optimized in any way (it is the most strait forward coding of memcmp you can get). Remove it and use the kernels standard memcmp() implementation. This also goes part of the way to fixing a regression caused by commit ea61bc461d09e8d331a307916530aaae808c72a2 ("m68k/m68knommu: merge MMU and non-MMU string.h"), which breaks non-coldfire non-mmu builds (which is the 68x328 and 68360 families). They currently have no memcmp() function defined, since there is none in the m68knommu/lib functions. Signed-off-by: Greg Ungerer <[email protected]> Acked-by: Geert Uytterhoeven <[email protected]>
2011-02-15Merge branch 'drm-fixes' of ↵Linus Torvalds46-302/+679
git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 * 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (27 commits) drm/radeon/kms: hopefully fix pll issues for real (v3) drm/radeon/kms: add bounds checking to avivo pll algo drm: fix wrong usages of drm_device in DRM Developer's Guide drm/radeon/kms: fix a few more atombios endian issues drm/radeon/kms: improve 6xx/7xx CS error output drm/radeon/kms: check AA resolve registers on r300 drm/radeon/kms: fix tracking of BLENDCNTL, COLOR_CHANNEL_MASK, and GB_Z on r300 drm/radeon/kms: use linear aligned for evergreen/ni bo blits drm/radeon/kms: use linear aligned for 6xx/7xx bo blits drm/radeon: fix race between GPU reset and TTM delayed delete thread. drm/radeon/kms: evergreen/ni big endian fixes (v2) drm/radeon/kms: 6xx/7xx big endian fixes drm/radeon/kms: atombios big endian fixes drm/radeon: 6xx/7xx non-kms endian fixes drm/radeon/kms: optimize CS state checking for r100->r500 drm: do not leak kernel addresses via /proc/dri/*/vma drm/radeon/kms: add connector table for mac g5 9600 radeon mkregtable: Add missing fclose() calls drm/radeon/kms: fix interlaced modes on dce4+ drm/radeon: fix memory debugging since d961db75ce86a84f1f04e91ad1014653ed7d9f46 ...
2011-02-15Merge branch 'for-linus' of ↵Linus Torvalds1-1/+2
git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6: pci: use security_capable() when checking capablities during config space read
2011-02-15thp: prevent hugepages during args/env copying into the user stackAndrea Arcangeli2-20/+18
Transparent hugepages can only be created if rmap is fully functional. So we must prevent hugepages to be created while is_vma_temporary_stack() is true. This also optmizes away some harmless but unnecessary setting of khugepaged_scan.address and it switches some BUG_ON to VM_BUG_ON. Signed-off-by: Andrea Arcangeli <[email protected]> Acked-by: Rik van Riel <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2011-02-15Merge branch 'release' of ↵Linus Torvalds4-31/+54
git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: ACPI / Video: Probe for output switch method when searching video devices. ACPI / Wakeup: Enable button GPEs unconditionally during initialization ACPI / ACPICA: Avoid crashing if _PRW is defined for the root object ACPI: Fix acpi_os_read_memory() and acpi_os_write_memory() (v2)
2011-02-15Merge branch 'tools-release' of ↵Linus Torvalds1-102/+98
git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-idle-2.6 * 'tools-release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-idle-2.6: tools: turbostat: style updates tools: turbostat: fix bitwise and operand
2011-02-15sparc64: Fix NMI startup bug which also breaks perf.David S. Miller3-2/+4
Doing NMI startup as an early initcall doesn't work because we need to have SMP started up by then. So we'd only NMI startup one cpu, which causes perf PMU grab to BUG because the nmi_active count isn't what it's supposed to be. This also points out that we don't have proper CPU up/down notifiers for the NMI code which will need to be fixed at some point. Signed-off-by: David S. Miller <[email protected]>
2011-02-15Merge branch 'iomem' into releaseLen Brown1-7/+18
2011-02-15spi/pxa2xx pci: fix the release - remove raceSebastian Andrzej Siewior1-40/+21
Right now the platform device and its platform data is included in one big struct which requires its custom ->release function. The problem with the release function within the driver is that it might be called after the driver was removed because someone was holding a reference to it and it was not called right after platform_device_unregister(). So we also free the platform device memory to which one might hold a reference. This patch uses the normal pdev functions so this kind of race does not occur. Signed-off-by: Sebastian Andrzej Siewior <[email protected]> Signed-off-by: Grant Likely <[email protected]>
2011-02-15isdn: hisax: Use l2headersize() instead of dup (and buggy) func.David S. Miller1-8/+1
There was a bug in my commit c978e7bb77dfd2cd3d1f547fa4e395cfe47f02b2 ("hisax: Fix unchecked alloc_skb() return.") One of the l2->flag checks is wrong. Even worse it turns out I'm duplicating an existing function, so use that instead. Reported-by: Milton Miller <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2011-02-15Merge branch 'fixes' of ↵Linus Torvalds5-115/+103
git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx: (21 commits) dmaengine: add slave-dma maintainer dma: ipu_idmac: do not lose valid received data in the irq handler dmaengine: imx-sdma: fix up param for the last BD in sdma_prep_slave_sg() dmaengine: imx-sdma: correct sdmac->status in sdma_handle_channel_loop() dmaengine: imx-sdma: return sdmac->status in sdma_tx_status() dmaengine: imx-sdma: set sdmac->status to DMA_ERROR in err_out of sdma_prep_slave_sg() dmaengine: imx-sdma: remove IMX_DMA_SG_LOOP handling in sdma_prep_slave_sg() dmaengine i.MX dma: initialize dma capabilities outside channel loop dmaengine i.MX DMA: do not initialize chan_id field dmaengine i.MX dma: check sg entries for valid addresses and lengths dmaengine i.MX dma: set maximum segment size for our device dmaengine i.MX SDMA: reserve channel 0 by not registering it dmaengine i.MX SDMA: initialize dma capabilities outside channel loop dmaengine i.MX SDMA: do not initialize chan_id field dmaengine i.MX sdma: check sg entries for valid addresses and lengths dmaengine i.MX sdma: set maximum segment size for our device DMA: PL08x: fix channel pausing to timeout rather than lockup DMA: PL08x: fix infinite wait when terminating transfers dmaengine: imx-sdma: fix inconsistent naming in sdma_assign_cookie() dmaengine: imx-sdma: propagate error in sdma_probe() instead of returning 0 ...
2011-02-15Merge branch 'for-2.6.38' of git://linux-nfs.org/~bfields/linuxLinus Torvalds4-93/+125
* 'for-2.6.38' of git://linux-nfs.org/~bfields/linux: nfsd: break lease on unlink due to rename nfsd4: acquire only one lease per file nfsd4: modify fi_delegations under recall_lock nfsd4: remove unused deleg dprintk's. nfsd4: split lease setting into separate function nfsd4: fix leak on allocation error nfsd4: add helper function for lease setup nfsd4: split up nfsd_break_deleg_cb NFSD: memory corruption due to writing beyond the stat array NFSD: use nfserr for status after decode_cb_op_status nfsd: don't leak dentry count on mnt_want_write failure
2011-02-15Merge branches 'core-fixes-for-linus' and 'timers-fixes-for-linus' of ↵Linus Torvalds2-7/+5
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: Revert "lockdep, timer: Fix del_timer_sync() annotation" * 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: timer debug: Hide kernel addresses via %pK in /proc/timer_list
2011-02-15Merge branch 'perf-fixes-for-linus' of ↵Linus Torvalds8-25/+42
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: Fix text_poke_smp_batch() deadlock perf tools: Fix thread_map event synthesizing in top and record watchdog, nmi: Lower the severity of error messages ARM: oprofile: Fix backtraces in timer mode oprofile: Fix usage of CONFIG_HW_PERF_EVENTS for oprofile_perf_init and friends
2011-02-15Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds8-15/+42
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, dmi, debug: Log board name (when present) in dmesg/oops output x86, ioapic: Don't warn about non-existing IOAPICs if we have none x86: Fix mwait_usable section mismatch x86: Readd missing irq_to_desc() in fixup_irq() x86: Fix section mismatch in LAPIC initialization
2011-02-15Merge branch 'for-linus' of ↵Linus Torvalds8-54/+72
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: matrix_keypad - increase the limit of rows and columns Input: wacom - fix error path in wacom_probe() Input: ads7846 - check proper condition when freeing gpio Revert "Input: do not pass injected events back to the originating handler" Input: sysrq - rework re-inject logic Input: serio - clear pending rescans after sysfs driver rebind Input: rotary_encoder - use proper irqflags Input: wacom_w8001 - report resolution to userland
2011-02-15[SCSI] qla2xxx: Return DID_NO_CONNECT when FC device is lost.Andrew Vasquez1-1/+0
If the target device gets lost, this fix is needed, as it causes negative unintended responses on basic I/O tests. If the target device gets lost, the upstream qla2xxx driver returns SCSI_MLQUEUE_TARGET_BUSY which causes an immediate retry without drop in the number of allowed retries. This semantic change, as a result of removing FC_DEVICE_LOST check is reasonable, as it only extends a short transitional period, until the transport is called to notify that the rport as lost (fc_remote_port_delete()). Once transport notification is done, fc_remote_port_chkready() check will take over. Signed-off-by: Andrew Vasquez <[email protected]> Signed-off-by: Madhuranath Iyengar <[email protected]> Signed-off-by: James Bottomley <[email protected]>
2011-02-15Merge branch 'for-linus' of ↵Linus Torvalds1-65/+57
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: get rid of nameidata_dentry_drop_rcu() calling nameidata_drop_rcu() drop out of RCU in return_reval split do_revalidate() into RCU and non-RCU cases in do_lookup() split RCU and non-RCU cases of need_revalidate nothing in do_follow_link() is going to see RCU
2011-02-15Merge git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstableLinus Torvalds9-11/+68
* git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable: Btrfs: check return value of alloc_extent_map() Btrfs - Fix memory leak in btrfs_init_new_device() btrfs: prevent heap corruption in btrfs_ioctl_space_info() Btrfs: Fix balance panic Btrfs: don't release pages when we can't clear the uptodate bits Btrfs: fix page->private races
2011-02-15s390: remove task_show_regsMartin Schwidefsky3-45/+0
task_show_regs used to be a debugging aid in the early bringup days of Linux on s390. /proc/<pid>/status is a world readable file, it is not a good idea to show the registers of a process. The only correct fix is to remove task_show_regs. Reported-by: Al Viro <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2011-02-15pci: use security_capable() when checking capablities during config space readChris Wright1-1/+2
This reintroduces commit 47970b1b which was subsequently reverted as f00eaeea. The original change was broken and caused X startup failures and generally made privileged processes incapable of reading device dependent config space. The normal capable() interface returns true on success, but the LSM interface returns 0 on success. This thinko is now fixed in this patch, and has been confirmed to work properly. So, once again...Eric Paris noted that commit de139a3 ("pci: check caps from sysfs file open to read device dependent config space") caused the capability check to bypass security modules and potentially auditing. Rectify this by calling security_capable() when checking the open file's capabilities for config space reads. Reported-by: Eric Paris <[email protected]> Tested-by: Dave Young <[email protected]> Acked-by: James Morris <[email protected]> Cc: Dave Airlie <[email protected]> Cc: Alex Riesen <[email protected]> Cc: Sedat Dilek <[email protected]> Cc: Linus Torvalds <[email protected]> Signed-off-by: Chris Wright <[email protected]> Signed-off-by: James Morris <[email protected]>
2011-02-15get rid of nameidata_dentry_drop_rcu() calling nameidata_drop_rcu()Al Viro1-8/+0
can't happen anymore and didn't work right anyway Signed-off-by: Al Viro <[email protected]>
2011-02-15drop out of RCU in return_revalAl Viro1-19/+6
... thus killing the need to handle drop-from-RCU in d_revalidate() Signed-off-by: Al Viro <[email protected]>
2011-02-15split do_revalidate() into RCU and non-RCU casesAl Viro1-17/+30
fixing oopsen in lookup_one_len() Signed-off-by: Al Viro <[email protected]>
2011-02-15in do_lookup() split RCU and non-RCU cases of need_revalidateAl Viro1-15/+16
and use unlikely() instead of gotos, for fsck sake... Signed-off-by: Al Viro <[email protected]>
2011-02-15nothing in do_follow_link() is going to see RCUAl Viro1-8/+7
Signed-off-by: Al Viro <[email protected]>
2011-02-15x86, dmi, debug: Log board name (when present) in dmesg/oops outputNaga Chumbalkar2-8/+25
The "Type 2" SMBIOS record that contains Board Name is not strictly required and may be absent in the SMBIOS on some platforms. ( Please note that Type 2 is not listed in Table 3 in Sec 6.2 ("Required Structures and Data") of the SMBIOS v2.7 Specification. ) Use the Manufacturer Name (aka System Vendor) name. Print Board Name only when it is present. Before the fix: (i) dmesg output: DMI: /ProLiant DL380 G6, BIOS P62 01/29/2011 (ii) oops output: Pid: 2170, comm: bash Not tainted 2.6.38-rc4+ #3 /ProLiant DL380 G6 After the fix: (i) dmesg output: DMI: HP ProLiant DL380 G6, BIOS P62 01/29/2011 (ii) oops output: Pid: 2278, comm: bash Not tainted 2.6.38-rc4+ #4 HP ProLiant DL380 G6 Signed-off-by: Naga Chumbalkar <[email protected]> Reviewed-by: Bjorn Helgaas <[email protected]> Cc: <[email protected]> # .3x - good for debugging, please apply as far back as it applies cleanly LKML-Reference: <20110214224423.2182.13929.sendpatchset@nchumbalkar.americas.hpqcorp.net> Signed-off-by: Ingo Molnar <[email protected]>
2011-02-15x86, ioapic: Don't warn about non-existing IOAPICs if we have nonePaul Bolle1-0/+3
mp_find_ioapic() prints errors like: ERROR: Unable to locate IOAPIC for GSI 13 if it can't find the IOAPIC that manages that specific GSI. I see errors like that at every boot of a laptop that apparently doesn't have any IOAPICs. But if there are no IOAPICs it doesn't seem to be an error that none can be found. A solution that gets rid of this message is to directly return if nr_ioapics (still) is zero. (But keep returning -1 in that case, so nothing breaks from this change.) The call chain that generates this error is: pnpacpi_allocated_resource() case ACPI_RESOURCE_TYPE_IRQ: pnpacpi_parse_allocated_irqresource() acpi_get_override_irq() mp_find_ioapic() Signed-off-by: Paul Bolle <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2011-02-15Merge branch 'urgent' of ↵Ingo Molnar2-12/+13
git://git.kernel.org/pub/scm/linux/kernel/git/rric/oprofile into perf/urgent
2011-02-14arp_notify: unconditionally send gratuitous ARP for NETDEV_NOTIFY_PEERS.Ian Campbell1-10/+20
NETDEV_NOTIFY_PEER is an explicit request by the driver to send a link notification while NETDEV_UP/NETDEV_CHANGEADDR generate link notifications as a sort of side effect. In the later cases the sysctl option is present because link notification events can have undesired effects e.g. if the link is flapping. I don't think this applies in the case of an explicit request from a driver. This patch makes NETDEV_NOTIFY_PEER unconditional, if preferred we could add a new sysctl for this case which defaults to on. This change causes Xen post-migration ARP notifications (which cause switches to relearn their MAC tables etc) to be sent by default. Signed-off-by: Ian Campbell <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2011-02-14cxgb4vf: Use defined Mailbox TimeoutCasey Leedom1-1/+1
VF Driver should use mailbox command timeout specified in t4fw_interface.h rather than hard-coded value of 500ms. Signed-off-by: Casey Leedom <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2011-02-14cxgb4vf: Quiesce Virtual Interfaces on shutdown ...Casey Leedom1-0/+41
When a Virtual Machine is rebooted, KVM currently fails to issue a Function Level Reset against any "Attached PCI Devices" (AKA "PCI Passthrough"). In addition to leaving the attached device in a random state in the next booted kernel (which sort of violates the entire idea of a reboot reseting hardware state), this leaves our peer thinking that the link is still up. (Note that a bug has been filed with the KVM folks, #25332, but there's been no response on that as of yet.) So, we add a "->shutdown()" method for the Virtual Function PCI Device to handle administrative shutdowns like a reboot. Signed-off-by: Casey Leedom <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2011-02-14cxgb4vf: Behave properly when CONFIG_DEBUG_FS isn't defined ...Casey Leedom1-8/+8
When CONFIG_DEBUG_FS we get "ERR_PTR()"s back from the debugfs routines instead of NULL. Use the right predicates to check for this. Signed-off-by: Casey Leedom <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2011-02-14cxgb4vf: Check driver parameters in the right place ...Casey Leedom1-12/+11
Check module parameter validity in the module initialization routine instead of the PCI Device Probe routine. Signed-off-by: Casey Leedom <[email protected]> Signed-off-by: David S. Miller <[email protected]>