- 01 Oct, 2005 2 commits
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Benjamin Herrenschmidt authored
The old 550Mhz titanium powerbook can switch to a lower frequency (500Mhz). A user has been repeately reporting overtemp conditions on his machine at high speed so this simple patch adds support to PowerMac cpufreq for this machine. The difference in frequency isn't big but seem enough to fix that user's problems. The patch has been around for some time now and doesn't seem to cause any problem, so I suppose it could go in now. Signed-off-by:
Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by:
Alain RICHARD <alain.richard@equation.fr> Signed-off-by:
Linus Torvalds <torvalds@osdl.org>
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Deepak Saxena authored
Serial port only needs 32 bytes of resource space but we are currently asking for 64K. Signed-off-by:
Deepak Saxena <dsaxena@plexity.net> Signed-off-by:
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- 30 Sep, 2005 38 commits
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Linus Torvalds authored
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Ravikiran G Thirumalai authored
The tests Alok carried out on Petr's box confirmed that cpu_to_node[BP] is not setup early enough by numa_init_array due to the x86_64 changes in 2.6.14-rc*, and unfortunately set wrongly by the work around code in numa_init_array(). cpu_to_node[0] gets set with 1 early and later gets set properly to 0 during identify_cpu() when all cpus are brought up, but confusing the numa slab in the process. Here is a quick fix for this. The right fix obviously is to have cpu_to_node[bsp] setup early for numa_init_array(). The following patch will fix the problem now, and the code can stay on even when cpu_to_node{BP] gets fixed early correctly. Thanks to Petr for access to his box. Signed off by: Ravikiran Thirumalai <kiran@scalex86.org> Signed-off-by:Alok N Kataria <alokk@calsoftinc.com> Signed-off-by:
Andrew Morton <akpm@osdl.org> Signed-off-by:
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Ravikiran G Thirumalai authored
Fix the BP node_to_cpumask. 2.6.14-rc* broke the boot cpu bit as the cpu_to_node(0) is now not setup early enough for numa_init_array. cpu_to_node[] is setup much later at srat_detect_node on acpi srat based em64t machines. This seems like a problem on amd machines too, Tested on em64t though. /sys/devices/system/node/node0/cpumap shows up sanely after this patch. Signed off by: Ravikiran Thirumalai <kiran@scalex86.org> Signed-off-by:
Shai Fultheim <shai@scalex86.org> Cc: Andi Kleen <ak@muc.de> Signed-off-by:
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Zhang, Yanmin authored
The up()/down() orders are incorrect in arch/x86_64/kprobes.c file. kprobe_mutext is used to protect the free kprobe instruction slot list. arch_prepare_kprobe applies for a slot from the free list, and arch_remove_kprobe returns a slot to the free list. The incorrect up()/down() orders to operate on kprobe_mutex fail to protect the free list. If 2 threads try to get/return kprobe instruction slot at the same time, the free slot list might be broken, or a free slot might be applied by 2 threads. Signed-off-by:
Zhang Yanmin <Yanmin.zhang@intel.com> Cc: Andi Kleen <ak@muc.de> Signed-off-by:
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Jody McIntyre authored
less noise in dmesg Signed-off-by:
Ben Collins <bcollins@debian.org> Signed-off-by:
Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by:
Jody McIntyre <scjody@steamballoon.com> Signed-off-by:
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Jody McIntyre authored
amdtp, dv1394, raw1394, video1394: Delete legacy module aliases. The macros did not work and the aliases are not needed nowadays. Signed-off-by:
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Jody McIntyre authored
Work around limitation in rawiso routines. Required with 1394b cards on architectures where PAGE_SIZE is 4096. Based on a previous patch by Ben Collins. Signed-off-by:
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Jody McIntyre authored
Remove superfluous include. Signed-off-by:
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Jody McIntyre authored
trivial edits of a few comments Signed-off-by:
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Jody McIntyre authored
Use of time_before() macro, defined at linux/jiffies.h, which deal with wrapping correctly and are nicer to read. Signed-off-by:
Marcelo Feitoza Parisi <marcelo@feitoza.com.br> Signed-off-by:
Domen Puncer <domen@coderock.org> Signed-off-by:
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Jody McIntyre authored
Fix debug code so it prints the correct speed (was defaulting to 100, so anything > 400 showed only 100). Signed-off-by:
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Jody McIntyre authored
Skip a superfluous pause that occured when the config ROM of a node was scanned unsuccessfully. This also occurs if a node without link wrongly enables its "link active" self ID flag. A GWCTech 6-port hub does this. Signed-off-by:
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Jody McIntyre authored
Units were not detected if the local IRM performed a bus reset. ("The root node is not cycle master capable; selecting a new root node and resetting...", often seen with iPods and other SBP-2 devices). Rearrange the order of IRM duties and node scanning. TODO: Audit the ROM caching and parsing code for underlying issues. Signed-off-by: -
Jody McIntyre authored
Set serialize_io=1 by default. This is safer and required by seemingly more and more hardware. It causes little or no performance loss for S400 devices. Performance of S800 1394b devices may drop by 25...30%. Therefore make the parameter's description and dmesg message clearer about performance impact. Update description of the max_speed parameter too. IEEE1394_SPEED_MAX is currently S800. Signed-off-by:
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Jody McIntyre authored
Fixes for deadlocks of the ieee1394 and scsi subsystems and long delays in futile error recovery attempts when SBP-2 devices are removed or drivers are unloaded. - Complete commands quickly with DID_NO_CONNECT if the 1394 node is gone or if the 1394 low-level driver was unloaded. - Skip unnecessary work in the eh_abort_handler and eh_device_reset_handler if the node or 1394 low-level driver is gone. - Let scsi's high-level shut down gracefully when sbp2 is being unloaded or detached from the 1394 unit. A call to scsi_remove_device is added for this purpose, which requires us to store a scsi_device pointer. - scsi_device pointer is obtained from slave_alloc hook and cleared by slave_destroy. This avoids usage of the pointer after the scsi device was deleted e.g. by the user via scsi_mod's sysfs interface. Signed-off-by:
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Jody McIntyre authored
Cc: Ben Collins <bcollins@debian.org> Signed-off-by:
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Brent Casavant authored
This change removes a bogus error message from the IOC4 serial driver interrupt handler. This error message is bogus for two reasons. First, it can never occur given that current code takes care to initialize IOC4 in such a way that these "unknown" interrupts could never occur. Second, this code fails to take into account that other drivers can share the IOC4 interrupt mechanism through SA_SHIRQ, and thus this driver is not in-fact "all-knowing". Finally, this error message triggers every time some "unknown" interrupt occurs -- it's not rate limited or repetition limited in any way, thereby effectively denying use of the console device. Given its bogosity in the first place, it's best to just get rid of it entirely. Acked-by:
Pat Gefre <pfg@sgi.com> Signed-off-by:
Brent Casavant <bcasavan@sgi.com> Signed-off-by:
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Miklos Szeredi authored
Check O_DIRECT and return -EINVAL error in open. dentry_open() also checks this but only after the open method is called. This patch optimizes away the unnecessary upcalls in this case. It could be a correctness issue too: if filesystem has open() with side effect, then it should fail before doing the open, not after. Signed-off-by:
Miklos Szeredi <miklos@szeredi.hu> Signed-off-by:
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Paolo 'Blaisorblade' Giarrusso authored
Calling truncate() on hostfs spits a kernel warning "Something isn't implemented here", but it still works fine. Indeed, hostfs i_op->truncate doesn't do anything. But hostfs_setattr() -> set_attr() correctly detects ATTR_SIZE and calls truncate() on the host. So we should be safe (using ftruncate() may be better, in case the file is unlinked on the host, but we aren't sure to have the file open for writing, and reopening it would cause the same races; plus nobody should expect UML to be so careful). So, the warning is wrong, because the current implementation is working. Al, am I correct, and can the warning be therefore dropped? CC: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by:
Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by:
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Paolo 'Blaisorblade' Giarrusso authored
Revert commit 12ebcd73, i.e. [PATCH] uml: run mconsole "sysrq" in process context on request from Jeff Dike. a) sysrq may be run when the scheduler is non-functioning b) the warning I wanted to fix actually came from the fault handler run in atomic context. But I fixed that not to take the semaphore in a separate patch. c) the fault handler is run because of a fault, and that fault was unaffected by this patch. Signed-off-by:
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Paolo 'Blaisorblade' Giarrusso authored
SEGV_MAYBE_FIXABLE tests ptrace_faultinfo, and depends on it being 1 only in SKAS3 mode, while currently when running with mode=tt it will be 1 anyway. Fix this, and do the same for proc_mm. Signed-off-by:
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Paolo 'Blaisorblade' Giarrusso authored
I hadn't been running a SKAS3 host when testing the "uml: fix hang in TT mode on fault" patch (commit 546fe1cb), and I didn't think enough to the missing trap_no in SKAS3 mode. In fact, the resulting kernel doesn't work at all in SKAS3 mode. Signed-off-by:
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Michael Krufky authored
GPIO fix for the composite and tv mute states of bt8xx card #135: DViCO FusionHDTV5 Lite. Without this patch, selecting one of these states could produce unexpected behavior. Signed-off-by:
Michael Krufky <mkrufky@linuxtv.org> Signed-off-by:
Mauro Carvalho Chehab <mchehab@brturbo.com.br> Signed-off-by:
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Andrew Morton authored
include/asm/hw_irq.h:70: warning: `struct hw_interrupt_type' declared inside parameter list include/asm/hw_irq.h:70: warning: its scope is only this definition or declaration, which is probably not what you want Signed-off-by:
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Zach Brown authored
Recently aio_p{read,write} changed to perform retries internally rather than returning -EIOCBRETRY. This inadvertantly resulted in always calling aio_{read,write} with ki_left at 0 which would in turn immediately return 0. Harmless, but we can avoid this call by checking in the caller. Signed-off-by:Zach Brown <zach.brown@oracle.com> Signed-off-by:
Benjamin LaHaise <bcrl@linux.intel.com> Signed-off-by:
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Zach Brown authored
Only one of the run or kick path is supposed to put an iocb on the run list. If both of them do it than one of them can end up referencing a freed iocb. The kick path could delete the task_list item from the wait queue before getting the ctx_lock and putting the iocb on the run list. The run path was testing the task_list item outside the lock so that it could catch ki_retry methods that return -EIOCBRETRY *without* putting the iocb on a wait queue and promising to call kick_iocb. This unlocked check could then race with the kick path to cause both to try and put the iocb on the run list. The patch stops the run path from testing task_list by requring that any ki_retry that returns -EIOCBRETRY *must* guarantee that kick_iocb() will be called in the future. aio_p{read,write}, the only in-tree -EIOCBRETRY users, are updated. Signed-off-by: -
Zach Brown authored
Only one of the run or kick path is supposed to put an iocb on the run list. If both of them do it than one of them can end up referencing a freed iocb. The kick patch could set the Kicked bit before acquiring the ctx_lock and putting the iocb on the run list. The run path, while holding the ctx_lock, could see this partial kick and mistake it for a kick that was deferred while it was doing work with the run_list NULLed out. It would then race with the kick thread to add the iocb to the run list. This patch moves the kick setting under the ctx_lock so that only one of the kick or run path queues the iocb on the run list, as intended. Signed-off-by:
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Linus Torvalds authored
As requested by Thomas Gleixner <tglx@linutronix.de>: "5d3d0f77 breaks a couple of ARM boards, which depend on the historical bootmem allocation order. There is a cleaner solution around to remove the pgdat list completely, but this is a topic for post 2.6.14 Andi signalled ACK already." Signed-off-by:
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James Morris authored
The following patch updates the way SELinux classifies and handles IP based protocols. Currently, IP sockets are classified by SELinux as being either TCP, UDP or 'Raw', the latter being a default for IP socket that is not TCP or UDP. The classification code is out of date and uses only the socket type parameter to socket(2) to determine the class of IP socket. So, any socket created with SOCK_STREAM will be classified by SELinux as TCP, and SOCK_DGRAM as UDP. Also, other socket types such as SOCK_SEQPACKET and SOCK_DCCP are currently ignored by SELinux, which classifies them as generic sockets, which means they don't even get basic IP level checking. This patch changes the SELinux IP socket classification logic, so that only an IPPROTO_IP protocol value passed to socket(2) classify the socket as TCP or UDP. The patch also drops the check for SOCK_RAW and converts it into a default, so that socket types like SOCK_DCCP and SOCK_SEQPACKET are classified as SECCLASS_RAWIP_SOCKET (instead of generic sockets). Note that protocol-specific support for SCTP, DCCP etc. is not addressed here, we're just getting these protocols checked at the IP layer. This fixes a reported problem where SCTP sockets were being recognized as generic SELinux sockets yet still being passed in one case to an IP level check, which then fails for generic sockets. It will also fix bugs where any SOCK_STREAM socket is classified as TCP or any SOCK_DGRAM socket is classified as UDP. This patch also unifies the way IP sockets classes are determined in selinux_socket_bind(), so we use the already calculated value instead of trying to recalculate it. Signed-off-by:
James Morris <jmorris@namei.org> Signed-off-by:
Stephen Smalley <sds@tycho.nsa.gov> Signed-off-by:
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Nick Piggin authored
I need the following patch to compile -git8 here, otherwise these files fail to compile (asm/hw_irq.h needs definitions from linux/irq.h and that file provides the required include ordering). I did not do a full audit, though there looks to be many other places that should get the same treatment, if this is the right way to do it. Signed-off-by: -
Daniel Ritz authored
the free_irq() in USB suspend breaks resume on some setups where USB (ohci/ehci) shares the interrupt with an other device. Signed-off-by:
Daniel Ritz <daniel.ritz@gmx.ch> Signed-off-by:
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Kirill Korotaev authored
x86-64: Add missing () around arguments of pte_index macro Signed-Off-By:
Alexey Kuznetsov <kuznet@ms2.inr.ac.ru> Signed-Off-By:
Kirill Korotaev <dev@sw.ru> Signed-off-by:
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Al Viro authored
Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk> Signed-off-by:
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Linus Torvalds authored
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Linus Torvalds authored
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Al Viro authored
Signed-off-by:
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Al Viro authored
Signed-off-by:
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Al Viro authored
BUILD_BUG_ON(1) is asking for trouble (and getting it) when used in that manner - dead code elimination happens after we parse it and invalid type is invalid type, dead code or not. It might be version-dependent, but at least 4.0.1 refuses to accept that. Signed-off-by:
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