- 17 5月, 2011 5 次提交
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由 Andrew Lunn 提交于
Tested using the test program in Documentation/rtc.txt Signed-off-by: NAndrew Lunn <andrew@lunn.ch> Signed-off-by: NNicolas Pitre <nico@fluxnic.net>
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由 Andrew Lunn 提交于
Signed-off-by: NAndrew Lunn <andrew@lunn.ch> Signed-off-by: NNicolas Pitre <nico@fluxnic.net>
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由 Andrew Lunn 提交于
Signed-off-by: NAndrew Lunn <andrew@lunn.ch> Signed-off-by: NNicolas Pitre <nico@fluxnic.net>
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由 Andrew Lunn 提交于
Changing eg 0xffffffff to DMA_BIT_MASK(32) etc allows easier side by side comparision of identical code which can be consolidated. Signed-off-by: NAndrew Lunn <andrew@lunn.ch> Signed-off-by: NNicolas Pitre <nico@fluxnic.net>
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由 Thomas Gleixner 提交于
The core interrupt chip is a straight forward conversion. The gpio chip is implemented with two instances of the irq_chip_type which can be switched with the irq_set_type function. That allows us to use the generic callbacks and avoids the conditionals in them. Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Signed-off-by: NNicolas Pitre <nico@fluxnic.net>
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- 23 4月, 2011 6 次提交
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由 Thomas Gleixner 提交于
These callbacks are only called in the syscore suspend/resume code on interrupt chips which have been registered via the generic irq chip mechanism. Calling those callbacks per irq would be rather icky, but with the generic irq chip mechanism we can call this per registered chip. Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Cc: linux-arm-kernel@lists.infradead.org
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由 Thomas Gleixner 提交于
Implement a generic interrupt chip, which is configurable and is able to handle the most common irq chip implementations. Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Cc: linux-arm-kernel@lists.infradead.org Tested-by: NH Hartley Sweeten <hsweeten@visionengravers.com> Tested-by: NTony Lindgren <tony@atomide.com> Tested-by; Kevin Hilman <khilman@ti.com>
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由 Paul Mundt 提交于
This adds support for disabling threading on a per-IRQ basis via the IRQ status instead of the IRQ flow, which is necessary for interrupts that don't follow the natural IRQ flow channels, such as those that are virtually created. The new APIs added are simply: irq_set_thread() irq_set_nothread() which follow the rest of the IRQ status routines. Chained handlers also have IRQ_NOTHREAD set on them automatically, making the lack of threading explicit rather than implicit. Subsequently, the nothread flag can be viewed through the standard genirq debugging facilities. [ tglx: Fixed cleanup fallout ] Signed-off-by: NPaul Mundt <lethal@linux-sh.org> Link: http://lkml.kernel.org/r/%3C20110406210135.GF18426%40linux-sh.org%3ESigned-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Geert Uytterhoeven 提交于
[ tglx: Filled in the FIXME place holders ] Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org> Link: http://lkml.kernel.org/r/%3C1302426113-13808-2-git-send-email-geert%40linux-m68k.org%3ESigned-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Geert Uytterhoeven 提交于
Fix some parts to match the actual code. [ tglx: Resolved the FIXMEs Gerd put in ] Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org> Link: http://lkml.kernel.org/r/%3C1302426113-13808-3-git-send-email-geert%40linux-m68k.org%3ESigned-off-by: NThomas Gleixner <tglx@linutronix.de> Cc: linux-doc@vger.kernel.org
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由 Geert Uytterhoeven 提交于
commit 0c6f8a8b ("genirq: Remove compat code") removed the compat code, but forgot to update some references in comments and delete some of its documentation. Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org> Link: http://lkml.kernel.org/r/%3C1302426113-13808-1-git-send-email-geert%40linux-m68k.org%3ESigned-off-by: NThomas Gleixner <tglx@linutronix.de>
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- 19 4月, 2011 10 次提交
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由 Linus Torvalds 提交于
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git://codeaurora.org/quic/kernel/davidb/linux-msm由 Linus Torvalds 提交于
* 'for-39-rc4' of git://codeaurora.org/quic/kernel/davidb/linux-msm: msm: timer: fix missing return value msm: Remove extraneous ffa device check
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input由 Linus Torvalds 提交于
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: xen-kbdfront - fix mouse getting stuck after save/restore Input: estimate number of events per packet Input: evdev - indicate buffer overrun with SYN_DROPPED Input: document event types and codes and their intended use Input: add KEY_IMAGES specifically for AL Image Browser Input: twl4030_keypad - fix potential NULL dereference in twl4030_kp_probe() Input: h3600_ts - fix error handling at connect Input: twl4030_keypad - avoid potential NULL-pointer dereference
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git://git.kernel.dk/linux-2.6-block由 Linus Torvalds 提交于
* 'for-linus' of git://git.kernel.dk/linux-2.6-block: block: add blk_run_queue_async block: blk_delay_queue() should use kblockd workqueue md: fix up raid1/raid10 unplugging. md: incorporate new plugging into raid5. md: provide generic support for handling unplug callbacks. md - remove old plugging code. md/dm - remove remains of plug_fn callback. md: use new plugging interface for RAID IO. block: drop queue lock before calling __blk_run_queue() for kblockd punt Revert "block: add callback function for unplug notification" block: Enhance new plugging support to support general callbacks
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git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc由 Linus Torvalds 提交于
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: powerpc/powermac: Build fix with SMP and CPU hotplug powerpc/perf_event: Skip updating kernel counters if register value shrinks powerpc: Don't write protect kernel text with CONFIG_DYNAMIC_FTRACE enabled powerpc: Fix oops if scan_dispatch_log is called too early powerpc/pseries: Use a kmem cache for DTL buffers powerpc/kexec: Fix regression causing compile failure on UP powerpc/85xx: disable Suspend support if SMP enabled powerpc/e500mc: Remove CPU_FTR_MAYBE_CAN_NAP/CPU_FTR_MAYBE_CAN_DOZE powerpc/book3e: Fix CPU feature handling on 64-bit e5500 powerpc: Check device status before adding serial device powerpc/85xx: Don't add disabled PCIe devices
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git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable由 Linus Torvalds 提交于
* git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable: (24 commits) Btrfs: fix free space cache leak Btrfs: avoid taking the chunk_mutex in do_chunk_alloc Btrfs end_bio_extent_readpage should look for locked bits Btrfs: don't force chunk allocation in find_free_extent Btrfs: Check validity before setting an acl Btrfs: Fix incorrect inode nlink in btrfs_link() Btrfs: Check if btrfs_next_leaf() returns error in btrfs_real_readdir() Btrfs: Check if btrfs_next_leaf() returns error in btrfs_listxattr() Btrfs: make uncache_state unconditional btrfs: using cached extent_state in set/unlock combinations Btrfs: avoid taking the trans_mutex in btrfs_end_transaction Btrfs: fix subvolume mount by name problem when default mount subvolume is set fix user annotation in ioctl.c Btrfs: check for duplicate iov_base's when doing dio reads btrfs: properly handle overlapping areas in memmove_extent_buffer Btrfs: fix memory leaks in btrfs_new_inode() Btrfs: check for duplicate iov_base's when doing dio reads Btrfs: reuse the extent_map we found when calling btrfs_get_extent Btrfs: do not use async submit for small DIO io's Btrfs: don't split dio bios if we don't have to ...
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由 Linus Torvalds 提交于
Rather than pass in some random truncated offset to the pid-related functions, check that the offset is in range up-front. This is just cleanup, the previous commit fixed the real problem. Cc: stable@kernel.org Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Linus Torvalds 提交于
next_pidmap() just quietly accepted whatever 'last' pid that was passed in, which is not all that safe when one of the users is /proc. Admittedly the proc code should do some sanity checking on the range (and that will be the next commit), but that doesn't mean that the helper functions should just do that pidmap pointer arithmetic without checking the range of its arguments. So clamp 'last' to PID_MAX_LIMIT. The fact that we then do "last+1" doesn't really matter, the for-loop does check against the end of the pidmap array properly (it's only the actual pointer arithmetic overflow case we need to worry about, and going one bit beyond isn't going to overflow). [ Use PID_MAX_LIMIT rather than pid_max as per Eric Biederman ] Reported-by: NTavis Ormandy <taviso@cmpxchg8b.com> Analyzed-by: NRobert Święcki <robert@swiecki.net> Cc: Eric W. Biederman <ebiederm@xmission.com> Cc: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Igor Mammedov 提交于
Mouse gets "stuck" after restore of PV guest but buttons are in working condition. If driver has been configured for ABS coordinates at start it will get XENKBD_TYPE_POS events and then suddenly after restore it'll start getting XENKBD_TYPE_MOTION events, that will be dropped later and they won't get into user-space. Regression was introduced by hunk 5 and 6 of 5ea5254aa0ad269cfbd2875c973ef25ab5b5e9db ("Input: xen-kbdfront - advertise either absolute or relative coordinates"). Driver on restore should ask xen for request-abs-pointer again if it is available. So restore parts that did it before 5ea5254. Acked-by: NOlaf Hering <olaf@aepfle.de> Signed-off-by: NIgor Mammedov <imammedo@redhat.com> [v1: Expanded the commit description] Signed-off-by: NKonrad Rzeszutek Wilk <konrad.wilk@oracle.com> Signed-off-by: NDmitry Torokhov <dtor@mail.ru>
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由 Jeff Brown 提交于
Calculate a default based on the number of ABS axes, REL axes, and MT slots for the device during input device registration. Signed-off-by: NJeff Brown <jeffbrown@android.com> Reviewed-by: NHenrik Rydberg <rydberg@euromail.se> Signed-off-by: NDmitry Torokhov <dtor@mail.ru>
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- 18 4月, 2011 19 次提交
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由 Chris Mason 提交于
The free space caching code was recently reworked to cache all the pages it needed instead of using find_get_page everywhere. One loop was missed though, so it ended up leaking pages. This fixes it to use our page array instead of find_get_page. Signed-off-by: NChris Mason <chris.mason@oracle.com>
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由 Christoph Hellwig 提交于
Instead of overloading __blk_run_queue to force an offload to kblockd add a new blk_run_queue_async helper to do it explicitly. I've kept the blk_queue_stopped check for now, but I suspect it's not needed as the check we do when the workqueue items runs should be enough. Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NJens Axboe <jaxboe@fusionio.com>
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由 Jens Axboe 提交于
Reported-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NJens Axboe <jaxboe@fusionio.com>
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由 NeilBrown 提交于
We just need to make sure that an unplug event wakes up the md thread, which is exactly what mddev_check_plugged does. Also remove some plug-related code that is no longer needed. Signed-off-by: NNeilBrown <neilb@suse.de>
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由 NeilBrown 提交于
In raid5 plugging is used for 2 things: 1/ collecting writes that require a bitmap update 2/ collecting writes in the hope that we can create full stripes - or at least more-full. We now release these different sets of stripes when plug_cnt is zero. Also in make_request, we call mddev_check_plug to hopefully increase plug_cnt, and wake up the thread at the end if plugging wasn't achieved for some reason. Signed-off-by: NNeilBrown <neilb@suse.de>
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由 NeilBrown 提交于
When an md device adds a request to a queue, it can call mddev_check_plugged. If this succeeds then we know that the md thread will be woken up shortly, and ->plug_cnt will be non-zero until then, so some processing can be delayed. If it fails, then no unplug callback is expected and the make_request function needs to do whatever is required to make the request happen. Signed-off-by: NNeilBrown <neilb@suse.de>
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由 NeilBrown 提交于
md has some plugging infrastructure for RAID5 to use because the normal plugging infrastructure required a 'request_queue', and when called from dm, RAID5 doesn't have one of those available. This relied on the ->unplug_fn callback which doesn't exist any more. So remove all of that code, both in md and raid5. Subsequent patches with restore the plugging functionality. Signed-off-by: NNeilBrown <neilb@suse.de>
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由 NeilBrown 提交于
Now that unplugging is done differently, the unplug_fn callback is never called, so it can be completely discarded. Signed-off-by: NNeilBrown <neilb@suse.de>
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由 NeilBrown 提交于
md/raid submits a lot of IO from the various raid threads. So adding start/finish plug calls to those so that some plugging happens. Signed-off-by: NNeilBrown <neilb@suse.de>
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由 Jens Axboe 提交于
If we know we are going to punt to kblockd, we can drop the queue lock before calling into __blk_run_queue() since it only does a safe bit test and a workqueue call. Since kblockd needs to grab this very lock as one of the first things it does, it's a good optimization to drop the lock before waking kblockd. Signed-off-by: NJens Axboe <jaxboe@fusionio.com>
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由 Jens Axboe 提交于
MD can't use this since it really requires us to be able to keep more than a single piece of state for the unplug. Commit 048c9374 added the required support for MD, so get rid of this now unused code. This reverts commit f7566457. Conflicts: block/blk-core.c Signed-off-by: NJens Axboe <jaxboe@fusionio.com>
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由 NeilBrown 提交于
md/raid requires an unplug callback, but as it does not uses requests the current code cannot provide one. So allow arbitrary callbacks to be attached to the blk_plug. Signed-off-by: NNeilBrown <neilb@suse.de> Signed-off-by: NJens Axboe <jaxboe@fusionio.com>
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由 Benjamin Herrenschmidt 提交于
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Eric B Munson 提交于
Because of speculative event roll back, it is possible for some event coutners to decrease between reads on POWER7. This causes a problem with the way that counters are updated. Delta calues are calculated in a 64 bit value and the top 32 bits are masked. If the register value has decreased, this leaves us with a very large positive value added to the kernel counters. This patch protects against this by skipping the update if the delta would be negative. This can lead to a lack of precision in the coutner values, but from my testing the value is typcially fewer than 10 samples at a time. Signed-off-by: NEric B Munson <emunson@mgebm.net> Cc: stable@kernel.org Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Stefan Roese 提交于
This problem was noticed on an MPC855T platform. Ftrace did oops when trying to write to the kernel text segment. Many thanks to Joakim for finding the root cause of this problem. Signed-off-by: NStefan Roese <sr@denx.de> Cc: Joakim Tjernlund <joakim.tjernlund@transmode.se> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Anton Blanchard 提交于
We currently enable interrupts before the dispatch log for the boot cpu is setup. If a timer interrupt comes in early enough we oops in scan_dispatch_log: Unable to handle kernel paging request for data at address 0x00000010 ... .scan_dispatch_log+0xb0/0x170 .account_system_vtime+0xa0/0x220 .irq_enter+0x88/0xc0 .do_IRQ+0x48/0x230 The patch below adds a check to scan_dispatch_log to ensure the dispatch log has been allocated. Signed-off-by: NAnton Blanchard <anton@samba.org> Cc: <stable@kernel.org> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Nishanth Aravamudan 提交于
PAPR specifies that DTL buffers can not cross AMS environments (aka CMO in the PAPR) and can not cross a memory entitlement granule boundary (4k). This is found in section 14.11.3.2 H_REGISTER_VPA of the PAPR. kmalloc does not guarantee an alignment of the allocation, though, beyond 8 bytes (at least in my understanding). Create a special kmem cache for DTL buffers with the alignment requirement. Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Paul Gortmaker 提交于
Recent commit b987812b caused a compile failure on UP because a considerably large block of the file was included within CONFIG_SMP, hence making a stub function not exposed on UP builds when it needed to be. Relocate the stub to the #else /* ! CONFIG_SMP */ section and also annotate the relevant else/endif so that nobody else falls into the same trap I did. Reported-by: NMichael Guntsche <mike@it-loops.com> Signed-off-by: NPaul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Benjamin Herrenschmidt 提交于
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