aboutsummaryrefslogtreecommitdiffstats
Commit message (Collapse)AuthorAge
* intel-iommu: Clean up handling of "caching mode" vs. IOTLB flushing.David Woodhouse2009-05-10
| | | | | | | | | | | | | | | | As we just did for context cache flushing, clean up the logic around whether we need to flush the iotlb or just the write-buffer, depending on caching mode. Fix the same bug in qi_flush_iotlb() that qi_flush_context() had -- it isn't supposed to be returning an error; it's supposed to be returning a flag which triggers a write-buffer flush. Remove some superfluous conditional write-buffer flushes which could never have happened because they weren't for non-present-to-present mapping changes anyway. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* intel-iommu: Clean up handling of "caching mode" vs. context flushing.David Woodhouse2009-05-10
| | | | | | | | | | | | | | | | It really doesn't make a lot of sense to have some of the logic to handle caching vs. non-caching mode duplicated in qi_flush_context() and __iommu_flush_context(), while the return value indicates whether the caller should take other action which depends on the same thing. Especially since qi_flush_context() thought it was returning something entirely different anyway. This patch makes qi_flush_context() and __iommu_flush_context() both return void, removes the 'non_present_entry_flush' argument and makes the only call site which _set_ that argument to 1 do the right thing. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* VT-d: fix invalid domain id for KVM context flushYu Zhao2009-05-10
| | | | | | | | | | The domain->id is a sequence number associated with the KVM guest and should not be used for the context flush. This patch replaces the domain->id with a proper id value for both bare metal and KVM. Signed-off-by: Yu Zhao <yu.zhao@intel.com> Acked-by: Weidong Han <weidong.han@intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* Fix !CONFIG_DMAR build failure introduced by Intel IOMMU Pass Through SupportFenghua Yu2009-05-01
| | | | | | | | This updated patch should fix the compiling errors and remove the extern iommu_pass_through from drivers/pci/intel-iommu.c file. Signed-off-by: Fenghua Yu <fenghua.yu@intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* Intel IOMMU Pass Through SupportFenghua Yu2009-04-29
| | | | | | | | | | | | | | | | | | | The patch adds kernel parameter intel_iommu=pt to set up pass through mode in context mapping entry. This disables DMAR in linux kernel; but KVM still runs on VT-d and interrupt remapping still works. In this mode, kernel uses swiotlb for DMA API functions but other VT-d functionalities are enabled for KVM. KVM always uses multi level translation page table in VT-d. By default, pass though mode is disabled in kernel. This is useful when people don't want to enable VT-d DMAR in kernel but still want to use KVM and interrupt remapping for reasons like DMAR performance concern or debug purpose. Signed-off-by: Fenghua Yu <fenghua.yu@intel.com> Acked-by: Weidong Han <weidong@intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* Linux 2.6.30-rc3v2.6.30-rc3Linus Torvalds2009-04-21
|
* driver synchronization: make scsi_wait_scan more advancedArjan van de Ven2009-04-21
| | | | | | | | | | | | | | | | | | | | | | | | | There is currently only one way for userspace to say "wait for my storage device to get ready for the modules I just loaded": to load the scsi_wait_scan module. Expectations of userspace are that once this module is loaded, all the (storage) devices for which the drivers were loaded before the module load are present. Now, there are some issues with the implementation, and the async stuff got caught in the middle of this: The existing code only waits for the scsy async probing to finish, but it did not take into account at all that probing might not have begun yet. (Russell ran into this problem on his computer and the fix works for him) This patch fixes this more thoroughly than the previous "fix", which had some bad side effects (namely, for kernel code that wanted to wait for the scsi scan it would also do an async sync, which would deadlock if you did it from async context already.. there's a report about that on lkml): The patch makes the module first wait for all device driver probes, and then it will wait for the scsi parallel scan to finish. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Tested-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Trivial: fix a typo in slow-work.hJonathan Corbet2009-04-21
| | | | | | | | | Fix a comment typo in slow-work.h ...a trivial mistake, but it will mess up kerneldoc if nothing else. Signed-off-by: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* PERCPU: Collect the DECLARE/DEFINE declarations togetherDavid Howells2009-04-21
| | | | | | | | | | | | | Collect the DECLARE/DEFINE declarations together in linux/percpu-defs.h so that they're in one place, and give them descriptive comments, particularly the SHARED_ALIGNED variant. It would be nice to collect these in linux/percpu.h, but that's not possible without sorting out the severe #include recursion between the x86 arch headers and the general headers (and possibly other arches too). Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* FRV: Fix the section attribute on UP DECLARE_PER_CPU()David Howells2009-04-21
| | | | | | | | | | | | | | | | | | | | | | | | In non-SMP mode, the variable section attribute specified by DECLARE_PER_CPU() does not agree with that specified by DEFINE_PER_CPU(). This means that architectures that have a small data section references relative to a base register may throw up linkage errors due to too great a displacement between where the base register points and the per-CPU variable. On FRV, the .h declaration says that the variable is in the .sdata section, but the .c definition says it's actually in the .data section. The linker throws up the following errors: kernel/built-in.o: In function `release_task': kernel/exit.c:78: relocation truncated to fit: R_FRV_GPREL12 against symbol `per_cpu__process_counts' defined in .data section in kernel/built-in.o kernel/exit.c:78: relocation truncated to fit: R_FRV_GPREL12 against symbol `per_cpu__process_counts' defined in .data section in kernel/built-in.o To fix this, DECLARE_PER_CPU() should simply apply the same section attribute as does DEFINE_PER_CPU(). However, this is made slightly more complex by virtue of the fact that there are several variants on DEFINE, so these need to be matched by variants on DECLARE. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstableLinus Torvalds2009-04-21
|\ | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable: Btrfs: fix btrfs fallocate oops and deadlock Btrfs: use the right node in reada_for_balance Btrfs: fix oops on page->mapping->host during writepage Btrfs: add a priority queue to the async thread helpers Btrfs: use WRITE_SYNC for synchronous writes
| * Btrfs: fix btrfs fallocate oops and deadlockChris Mason2009-04-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Btrfs fallocate was incorrectly starting a transaction with a lock held on the extent_io tree for the file, which could deadlock. Strictly speaking it was using join_transaction which would be safe, but it is better to move the transaction outside of the lock. When preallocated extents are overwritten, btrfs_mark_buffer_dirty was being called on an unlocked buffer. This was triggering an assertion and oops because the lock is supposed to be held. The bug was calling btrfs_mark_buffer_dirty on a leaf after btrfs_del_item had been run. btrfs_del_item takes care of dirtying things, so the solution is a to skip the btrfs_mark_buffer_dirty call in this case. Signed-off-by: Chris Mason <chris.mason@oracle.com>
| * Btrfs: use the right node in reada_for_balanceChris Mason2009-04-20
| | | | | | | | | | | | | | | | | | | | | | | | | | reada_for_balance was using the wrong index into the path node array, so it wasn't reading the right blocks. We never directly used the results of the read done by this function because the btree search is started over at the end. This fixes reada_for_balance to reada in the correct node and to avoid searching past the last slot in the node. It also makes sure to hold the parent lock while we are finding the nodes to read. Signed-off-by: Chris Mason <chris.mason@oracle.com>
| * Btrfs: fix oops on page->mapping->host during writepageChris Mason2009-04-20
| | | | | | | | | | | | | | | | | | | | | | | | The extent_io writepage call updates the writepage index in the inode as it makes progress. But, it was doing the update after unlocking the page, which isn't legal because page->mapping can't be trusted once the page is unlocked. This lead to an oops, especially common with compression turned on. The fix here is to update the writeback index before unlocking the page. Signed-off-by: Chris Mason <chris.mason@oracle.com>
| * Btrfs: add a priority queue to the async thread helpersChris Mason2009-04-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Btrfs is using WRITE_SYNC_PLUG to send down synchronous IOs with a higher priority. But, the checksumming helper threads prevent it from being fully effective. There are two problems. First, a big queue of pending checksumming will delay the synchronous IO behind other lower priority writes. Second, the checksumming uses an ordered async work queue. The ordering makes sure that IOs are sent to the block layer in the same order they are sent to the checksumming threads. Usually this gives us less seeky IO. But, when we start mixing IO priorities, the lower priority IO can delay the higher priority IO. This patch solves both problems by adding a high priority list to the async helper threads, and a new btrfs_set_work_high_prio(), which is used to make put a new async work item onto the higher priority list. The ordering is still done on high priority IO, but all of the high priority bios are ordered separately from the low priority bios. This ordering is purely an IO optimization, it is not involved in data or metadata integrity. Signed-off-by: Chris Mason <chris.mason@oracle.com>
| * Btrfs: use WRITE_SYNC for synchronous writesChris Mason2009-04-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Part of reducing fsync/O_SYNC/O_DIRECT latencies is using WRITE_SYNC for writes we plan on waiting on in the near future. This patch mirrors recent changes in other filesystems and the generic code to use WRITE_SYNC when WB_SYNC_ALL is passed and to use WRITE_SYNC for other latency critical writes. Btrfs uses async worker threads for checksumming before the write is done, and then again to actually submit the bios. The bio submission code just runs a per-device list of bios that need to be sent down the pipe. This list is split into low priority and high priority lists so the WRITE_SYNC IO happens first. Signed-off-by: Chris Mason <chris.mason@oracle.com>
* | Merge branch 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6Linus Torvalds2009-04-21
|\ \ | | | | | | | | | | | | * 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6: go7007: Convert to the new i2c device binding model
| * | go7007: Convert to the new i2c device binding modelJean Delvare2009-04-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move the go7007 driver away from the legacy i2c binding model, which is going away really soon now. The I2C addresses of the audio and video chips in s2250-board didn't look quite right, apparently they were left-aligned values when Linux wants right-aligned values, so I fixed them too. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Greg Kroah-Hartman <gregkh@suse.de>
* | | bfin_5xx: misplaced parenthesesRoel Kluin2009-04-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | `!' has a higher precedence than `&', parentheses are misplaced. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Acked-by: Sonic Zhang <sonic.zhang@analog.com> Cc: Bryan Wu <cooloney@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | vmscan,memcg: reintroduce sc->may_swapKOSAKI Motohiro2009-04-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit a6dc60f8975ad96d162915e07703a4439c80dcf0 ("vmscan: rename sc.may_swap to may_unmap") removed the may_swap flag, but memcg had used it as a flag for "we need to use swap?", as the name indicate. And in the current implementation, memcg cannot reclaim mapped file caches when mem+swap hits the limit. re-introduce may_swap flag and handle it at get_scan_ratio(). This patch doesn't influence any scan_control users other than memcg. Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Cc: Balbir Singh <balbir@linux.vnet.ibm.com> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | edac: ppc mpc85xx fix mc err detectDave Jiang2009-04-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Error found by Jeff Haran. The error detect register is 0s when no errors are detected. The check code is incorrect, so reverse check sense. Reported-by: Jeff Haran <jharan@Brocade.COM> Signed-off-by: Dave Jiang <djiang@mvista.com> Signed-off-by: Doug Thompson <dougthompson@xmission.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | scsi: mpt: suppress debugobjects warningEric Paris2009-04-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Addresses http://bugzilla.kernel.org/show_bug.cgi?id=13133 ODEBUG: object is on stack, but not annotated ------------[ cut here ]------------ WARNING: at lib/debugobjects.c:253 __debug_object_init+0x1f3/0x276() Hardware name: VMware Virtual Platform Modules linked in: mptspi(+) mptscsih mptbase scsi_transport_spi ext3 jbd mbcache Pid: 540, comm: insmod Not tainted 2.6.28-mm1 #2 Call Trace: [<c042c51c>] warn_slowpath+0x74/0x8a [<c0469600>] ? start_critical_timing+0x96/0xb7 [<c060c8ea>] ? _spin_unlock_irqrestore+0x2f/0x3c [<c0446fad>] ? trace_hardirqs_off_caller+0x18/0xaf [<c044704f>] ? trace_hardirqs_off+0xb/0xd [<c060c8ea>] ? _spin_unlock_irqrestore+0x2f/0x3c [<c042cb84>] ? release_console_sem+0x1a5/0x1ad [<c05013e6>] __debug_object_init+0x1f3/0x276 [<c0501494>] debug_object_init+0x13/0x17 [<c0433c56>] init_timer+0x10/0x1a [<e08e5b54>] mpt_config+0x1c1/0x2b7 [mptbase] [<e08e3b82>] ? kmalloc+0x8/0xa [mptbase] [<e08e3b82>] ? kmalloc+0x8/0xa [mptbase] [<e08e6fa2>] mpt_do_ioc_recovery+0x950/0x1212 [mptbase] [<c04496c2>] ? __lock_acquire+0xa69/0xacc [<c060c8f1>] ? _spin_unlock_irqrestore+0x36/0x3c [<c060c3af>] ? _spin_unlock_irq+0x22/0x26 [<c04f2d8b>] ? string+0x2b/0x76 [<c04f310e>] ? vsnprintf+0x338/0x7b3 [<c04496c2>] ? __lock_acquire+0xa69/0xacc [<c060c8ea>] ? _spin_unlock_irqrestore+0x2f/0x3c [<c04496c2>] ? __lock_acquire+0xa69/0xacc [<c044897d>] ? debug_check_no_locks_freed+0xeb/0x105 [<c060c8f1>] ? _spin_unlock_irqrestore+0x36/0x3c [<c04488bc>] ? debug_check_no_locks_freed+0x2a/0x105 [<c0446b8c>] ? lock_release_holdtime+0x43/0x48 [<c043f742>] ? up_read+0x16/0x29 [<c05076f8>] ? pci_get_slot+0x66/0x72 [<e08e89ca>] mpt_attach+0x881/0x9b1 [mptbase] [<e091c8e5>] mptspi_probe+0x11/0x354 [mptspi] Noticing that every caller of mpt_config has its CONFIGPARMS struct declared on the stack and thus the &pCfg->timer is always on the stack I changed init_timer() to init_timer_on_stack() and it seems to have shut up..... Cc: "Moore, Eric Dean" <Eric.Moore@lsil.com> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Cc: Thomas Gleixner <tglx@linutronix.de> Acked-by: "Desai, Kashyap" <Kashyap.Desai@lsi.com> Cc: <stable@kernel.org> [2.6.29.x] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | sgi-xp/sgi-gru: allow modules to load on non-uv systemsRobin Holt2009-04-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For an upcoming distro release, we need to have the xp kernel module loadable even when not on UV equipment. The xpc module will not load. This will allow one set of modules dependent upon xp to work on either UV or non-UV equipment. Signed-off-by: Robin Holt <holt@sgi.com> Signed-off-by: Jack Steiner <steiner@sgi.com> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | uml: kill a kconfig warningWANG Cong2009-04-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Got this warning from Kconfig: boolean symbol INPUT tested for 'm'? test forced to 'n' because INPUT is tristate, not bool. Signed-off-by: WANG Cong <xiyou.wangcong@gmail.com> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | frv: insert PCI root bus resources for the MB93090 devel motherboardDavid Howells2009-04-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Insert PCI root bus resources for the FRV-based MB93090 development kit motherboard. This is required because the CPU's window onto the PCI bus address space is considerably smaller than the CPU's full address space and non-PCI devices lie outside of the PCI window that we might want to access. Without this patch, the PCI root bus uses the platform-level bus resources, and these are then confined to the PCI window, thus making platform_device_add() reject devices outside of this window. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | rtc-cmos: fix printk outputKrzysztof Halasa2009-04-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With no IRQ available/defined, RTC-CMOS driver prints something like: rtc0: alarms up to one no, y3k, 114 bytes nvram ^^^^ I guess the following is a bit easier to understand: rtc0: no alarms, y3k, 114 bytes nvram Signed-off-by: Krzysztof Halasa <khc@pm.waw.pl> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | spi: documentation: emphasise spi_master.setup() semanticsDavid Brownell2009-04-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is a doc-only patch which I hope will reduce the number of spi_master controller driver patches starting out with a common implementation bug. (As in: almost every spi_master driver I see starts out with its version of this bug. Sigh.) It just re-emphasizes that the setup() method may be called for one device while a transfer is active on another ... which means that most driver implementations shouldn't touch any registers. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | MAINTAINERS: add a more searchable string for the H8300 architecture.Robert P. J. Day2009-04-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a parenthesized string of "H8300" for more convenient searchability in the MAINTAINERS file. Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | MAINTAINERS: add Matt Mackall to embedded maintainersMatt Mackall2009-04-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: make more work for myself Signed-off-by: Matt Mackall <mpm@selenic.com> Cc: David Woodhouse <dwmw2@infradead.org> Acked-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | spi: pxa2xx: limit reaches -1Roel Kluin2009-04-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On line 944 the return value of flush() is considered as a boolean, but limit reaches -1 upon timeout which evaluates to true. On 540, 594, 720 the same occurs for wait_ssp_rx_stall() On 536 the same occurs for wait_dma_channel_stop() Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Acked-by: Eric Miao <eric.miao@marvell.com> Cc: David Brownell <david-b@pacbell.net> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | MAINTAINERS: update KMEMTRACE pattern after file renameJoe Perches2009-04-21
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Pekka Enberg <penberg@cs.helsinki.fi> Acked-by: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | MAINTAINERS: remove include/asm-*/suspend* file patternsJoe Perches2009-04-21
| | | | | | | | | | | | | | | | | | | | | | | | There are no more arches with suspend support using these directories. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | pxa2xx_spi: restore DRCMR on resumeDaniel Ribeiro2009-04-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If DMA is enabled, any spi_sync call after suspend/resume would block forever, because DRCMR is lost on suspend. This patch restores DRCMR to the same values set by probe. Signed-off-by: Daniel Ribeiro <drwyrm@gmail.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | drivers/input/serio/hp_sdc.c: fix crash when removing hp_sdc moduleHelge Deller2009-04-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On parisc machines, which don't have HIL, removing the hp_sdc module panics the kernel. Fix this by returning early in hp_sdc_exit() if no HP SDC controller was found. Add functionality to probe for the hp_sdc_mlc kernel module (which takes care of the upper layer HIL functionality on parisc) after two seconds. This is needed to get all the other HIL drivers (keyboard / mouse/ ..) drivers automatically loaded by udev later as well. Signed-off-by: Helge Deller <deller@gmx.de> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Frans Pop <elendil@planet.nl> Cc: Kyle McMartin <kyle@mcmartin.ca> Cc: Grant Grundler <grundler@parisc-linux.org> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | memcg: use rcu_dereference to access mm->ownerKAMEZAWA Hiroyuki2009-04-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | mm->owner should be accessed with rcu_dereference(). Reported-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Acked-by: Balbir Singh <balbir@linux.vnet.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | hugetlbfs: return negative error code for bad mount optionAkinobu Mita2009-04-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes the following BUG: # mount -o size=MM -t hugetlbfs none /huge hugetlbfs: Bad value 'MM' for mount option 'size=MM' ------------[ cut here ]------------ kernel BUG at fs/super.c:996! Due to BUG_ON(!mnt->mnt_sb); in vfs_kern_mount(). Also, remove unused #include <linux/quotaops.h> Cc: William Irwin <wli@holomorphy.com> Cc: <stable@kernel.org> Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | ipmi: add oem message handlingdann frazier2009-04-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Enable userspace to receive messages that a BMC transmits using an OEM medium. This is used by the HP iLO2. Based on code originally written by Patrick Schoeller. Signed-off-by: dann frazier <dannf@hp.com> Signed-off-by: Corey Minyard <cminyard@mvista.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | ipmi: fix statistics counting issuesCorey Minyard2009-04-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Bela Lubkin noticed that the statistics for send IPMB and LAN commands in the IPMI driver could be incremented even if an error occurred. Move the increments to the proper place to avoid this. Also add some statistics for retransmissions that failed, and some little helper functions to neaten up the code a little. Signed-off-by: Corey Minyard <cminyard@mvista.com> Cc: Bela Lubkin <blubkin@vmware.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | ipmi: test for event buffer before usingCorey Minyard2009-04-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The IPMI driver would attempt to use the event buffer even if that didn't exist on the BMC. This patch modified the IPMI driver to check for the event buffer's existence before trying to use it. Signed-off-by: Corey Minyard <minyard@acm.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | ipmi: fix platform return checkCorey Minyard2009-04-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | The wrong return value is being tested when allocating a platform device in the IPMI SI code. Check the right value. Signed-off-by: Corey Minyard <minyard@acm.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | clocksource: add enable() and disable() callbacksMagnus Damm2009-04-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add enable() and disable() callbacks for clocksources. This allows us to put unused clocksources in power save mode. The functions clocksource_enable() and clocksource_disable() wrap the callbacks and are inserted in the timekeeping code to enable before use and disable after switching to a new clocksource. Signed-off-by: Magnus Damm <damm@igel.co.jp> Acked-by: John Stultz <johnstul@us.ibm.com> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | clocksource: pass clocksource to read() callbackMagnus Damm2009-04-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pass clocksource pointer to the read() callback for clocksources. This allows us to share the callback between multiple instances. [hugh@veritas.com: fix powerpc build of clocksource pass clocksource mods] [akpm@linux-foundation.org: cleanup] Signed-off-by: Magnus Damm <damm@igel.co.jp> Acked-by: John Stultz <johnstul@us.ibm.com> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | pxafb: lcsr1 is unused without CONFIG_FB_PXA_OVERLAYDenis V. Lunev2009-04-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fixes the warning: drivers/video/pxafb.c: In function 'pxafb_handle_irq': drivers/video/pxafb.c:1442: warning: unused variable 'lcsr1' [akpm@linux-foundation.org: save an ifdef] Signed-off-by: Denis V. Lunev <den@openvz.org> Cc: Eric Miao <eric.miao@marvell.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | asiliantfb: add missing return statementVlada Peric2009-04-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 032220ba (asiliantfb: fix cmap memory leaks) changed the function init_asiliant from void to int, resulting in the following compile warning: drivers/video/asiliantfb.c: In function `init_asiliant': drivers/video/asiliantfb.c:536: warning: control reaches end of non-void function Fix the warning by returning 0. Signed-off-by: Vlada Peric <vlada.peric@gmail.com> Cc: Andres Salomon <dilinger@debian.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixesLinus Torvalds2009-04-21
|\ \ \ | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes: GFS2: Fix page_mkwrite() return code GFS2: Clear dirty bit at end of inode glock sync
| * | | GFS2: Fix page_mkwrite() return codeSteven Whitehouse2009-04-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This allows for the possibility of returning VM_FAULT_OOM as well as VM_FAULT_SIGBUS. This ensures that the correct action is taken. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
| * | | GFS2: Clear dirty bit at end of inode glock syncSteven Whitehouse2009-04-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The dirty bit can get set during the inode glock sync. Its too complicated to change that at the moment, so this is the quick fix - to clear the bit again at the end of the function. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* | | | Merge branch 'sh/for-2.6.30' of ↵Linus Torvalds2009-04-21
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 * 'sh/for-2.6.30' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: sh: Fix mmap2 for handling differing PAGE_SIZEs. sh: sh7723: Don't default enable the RTC clock. sh: sh7722: Don't default enable the RTC clock. rtc: rtc-sh: clock framework support.
| * \ \ \ Merge branch 'sh/stable-updates' into sh/for-2.6.30Paul Mundt2009-04-21
| |\ \ \ \
| | * | | | sh: Fix mmap2 for handling differing PAGE_SIZEs.Toshinobu Sugioka2009-04-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | mmap2 uses a fixed page shift of 12, regardless of the PAGE_SIZE setting. Fix up the mmap2 code to add some sanity checks on the mapping, and to update pgoff accordingly. Error handling bits based on 4280e3126f641898f0ed1a931645373d3489e2a6 ("frv: fix mmap2 error handling"). Signed-off-by: Toshinobu Sugioka <sugioka@itonet.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-21 07:13:34 -0500