- 03 Oct, 2006 35 commits
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Tobias Oed authored
This patch allows me to use dma with my cd/dvd attached to my on board pdc20265 ide controller Alan sayeth: Looks sane. Would be nice to know if there is any documentation supporting this hack being safe but the logic makes sense. The LBA48 case faces the same problem - the state machine gets confused about the transfer length and needs kicking Signed-off-by:
Tobias Oed <tobiasoed@hotmail.com> Acked-by:
Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl> Cc: Jens Axboe <axboe@suse.de> Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by:
Andrew Morton <akpm@osdl.org> Signed-off-by:
Linus Torvalds <torvalds@osdl.org>
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Sergei Shtylyov authored
ide_dma_speed() fails to actually honor the IDE drivers' mode support masks) because of the bogus checks -- thus, selecting the DMA transfer mode that the driver explicitly refuses to support is possible. Additionally, there is no check for validity of the UltraDMA mode data in the drive ID, and the function is misdocumented. Signed-off-by:
Sergei Shtylyov <sshtylyov@ru.mvista.com> Cc: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by:
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Matt Mackall authored
Make IDE_HWIFS configurable if EMBEDDED This lets us lop as much as 16k off an x86 build. It's a little ugly, but it's dead simple. Note the fix for HWIFS < 2. Sizing interfaces dynamically unfortunately turns out to be pretty major surgery. add/remove: 0/1 grow/shrink: 0/11 up/down: 0/-16182 (-16182) function old new delta ide_hwifs 16920 1692 -15228 init_irq 1113 750 -363 ideprobe_init 283 138 -145 ide_pci_setup_ports 1329 1193 -136 save_match 85 - -85 ide_register_hw_with_fixup 367 287 -80 ide_setup 1364 1308 -56 is_chipset_set 40 4 -36 create_proc_ide_interfaces 225 205 -20 init_ide_data 84 67 -17 ide_probe_for_cmd640x 1198 1183 -15 ide_unregister 1452 1451 -1 Signed-off-by:
Matt Mackall <mpm@selenic.com> Cc: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl> Acked-by:
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Hua Zhong authored
In 2.6.15.1 I encountered some IDE crashes when unplugging IDE cables to emulate disk errors. Below is a patch against 2.6.16 which I think still applies. 1. The first BUG_ON could trigger when a PREFLUSH IO fails (it would fail the original barrier request which hasn't been marked REQ_STARTED yet). 2. the rq could have been dequeued already (same as 1). 3. HWGROUP(drive)->rq could be NULL because of the ide_error() several lines earlier. Signed-off-by:
Hua Zhong <hzhong@gmail.com> Cc: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by:
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Sergei Shtylylov authored
Release the DMA engine for the custom mapping IDE drivers also (for example, siimage.c does allocate it in both I/O-mapped and custom-mapped modes). Remove useless code from the error path of ide_allocate_dma_engine(). Signed-off-by:
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Sergei Shtylylov authored
- Claim extra DMA I/O ports regardless of what IDE channels are present/enabled. - Remove extra ports handling from ide_mapped_mmio_dma() since it's not applicable to the custom-mapping IDE drivers. Signed-off-by:
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Alan Cox authored
Less functional than libata this just uses the merged interface provided for dumb legacy OS's. This is basically a bridge for people not yet ready to use libata for some reason or another. Port visibility is entirely dependant on the BIOS setup. Signed-off-by:
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Christoph Lameter authored
When the per cpu sched domains are build then they also need to be placed on the node where the cpu resides otherwise we will have frequent off node accesses which will slow down the system. Signed-off-by:
Christoph Lameter <clameter@sgi.com> Acked-by:
Ingo Molnar <mingo@elte.hu> Acked-by:
Nick Piggin <nickpiggin@yahoo.com.au> Signed-off-by:
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Satoru Takeuchi authored
Fixing wrong comment for find_idlest_cpu(). Signed-off-by:
Satoru Takeuchi <takeuchi_satoru@jp.fujitsu.com> Acked-by:
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Siddha, Suresh B authored
Up to now sched group's cpu_power for each sched domain is initialized independently. This made the setup code ugly as the new sched domains are getting added. Make the sched group cpu_power setup code generic, by using domain child field and new domain flag in sched_domain. For most of the sched domains(except NUMA), sched group's cpu_power is now computed generically using the domain properties of itself and of the child domain. sched groups in NUMA domains are setup little differently and hence they don't use this generic mechanism. Signed-off-by:
Suresh Siddha <suresh.b.siddha@intel.com> Acked-by:
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Siddha, Suresh B authored
Introduce the child field in sched_domain struct and use it in sched_balance_self(). We will also use this field in cleaning up the sched group cpu_power setup(done in a different patch) code. Signed-off-by:
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Dave Jones authored
If only a single CPU is present, printing this doesn't make much sense. Signed-off-by:
Dave Jones <davej@redhat.com> Acked-by:
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Siddha, Suresh B authored
Remove dynamic sched group allocations for MC and SMP domains. These allocations can easily fail on big systems(1024 or so CPUs) and we can live with out these dynamic allocations. [akpm@osdl.org: build fix] Signed-off-by:
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Nick Piggin authored
Force /sbin/init off isolated cpus (unless every CPU is specified as an isolcpu). Users seem to think that the isolated CPUs shouldn't have much running on them to begin with. That's fair enough: intuitive, I guess. It also means that the cpu affinity masks of tasks will not include isolcpus by default, which is also more intuitive, perhaps. /sbin/init is spawned from the boot CPU's idle thread, and /sbin/init starts the rest of userspace. So if the boot CPU is specified to be an isolcpu, then prior to this patch, all of userspace will be run there. (throw in a couple of plausible devinit -> cpuinit conversions I spotted while we're here). Signed-off-by:
Nick Piggin <npiggin@suse.de> Cc: Dimitri Sivanich <sivanich@sgi.com> Acked-by:
Paul Jackson <pj@sgi.com> Acked-by:
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OGAWA Hirofumi authored
switch(reg1 & 0x700) { case 5: info_hpt366.private_data = &hpt366_40; break; case 9: info_hpt366.private_data = &hpt366_25; break; default: info_hpt366.private_data = &hpt366_33; break; } The above runs always default part. It should be "(reg1 & 0x700) >> 8". Signed-off-by:OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Acked-by:
Alan Cox <alan@redhat.com> Signed-off-by:
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Luiz Fernando N. Capitulino authored
The 'STABLE BRANCH' entry is duplicated, remove it. Signed-off-by:
Luiz Fernando N. Capitulino <lcapitulino@mandriva.com.br> Cc: Greg KH <greg@kroah.com> Cc: Chris Wright <chrisw@sous-sol.org> Signed-off-by:
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Bjorn Helgaas authored
We removed 8250_acpi in 2.6.17. If we don't have PNPACPI turned on, we won't find any ACPI serial devices, so mention this requirement in the troubleshooting part of the documentation. CONFIG_PNPACPI is already turned on in all the relevant defconfigs. Signed-off-by:
Bjorn Helgaas <bjorn.helgaas@hp.com> Acked-by:
"Luck, Tony" <tony.luck@intel.com> Signed-off-by:
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Corey Minyard authored
After the previous patch to disable the kernel IPMI daemon if interrupts were available, the issue of broken hardware was raised, and a reasonable request to add an override was mode. So here it is. Allow the user to force the kernel ipmi daemon on or off. This way, hardware with broken interrupts or users that are not concerned with performance can turn it on or off to their liking. [akpm@osdl.org: save 4 bytes in vmlinux] Signed-off-by:
Corey Minyard <minyard@acm.org> Signed-off-by:
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Pekka Enberg authored
Whomever said... "When you meet someone now who is writing a compiler or hacking a Unix kernel, at least you know they're not just doing it to pick up chicks." ...has obviously never met a _Linux_ kernel hacker. Anyway, sometimes people confuse my email addresses, which is why I really should add the proper one to CREDITS ;-). Signed-off-by:
Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by:
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Olaf Hering authored
The last change for partport_pc did fix the common case for all PowerMacs, but it broke the case for PCI multiport IO cards. In fact, the config option CONFIG_PARPORT_PC_SUPERIO=y lead to a hard crash when cups probed the parport driver. It enables the winbond and smsc probing. Remove the PARPORT_BASE check again, parport_pc_find_nonpci_ports() will take care of it. All powerpc configs should have CONFIG_PARPORT_PC_SUPERIO=n, the code did not find anything on the chrp boards we tested it on. Tested on a G4/466 with a PCI card: 0001:10:13.0 Serial controller: Timedia Technology Co Ltd PCI2S550 (Dual 16550 UART) (rev 01) (prog-if 02 [16550]) Subsystem: Timedia Technology Co Ltd Unknown device 5079 Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping+ SERR- FastB2B- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Interrupt: pin A routed to IRQ 53 Region 0: I/O ports at f2000800 [size=32] Region 2: I/O ports at f2000870 [size=8] Region 3: I/O ports at f2000860 [size=8] Signed-off-by:Olaf Hering <olaf@aepfle.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Adam Belay <ambx1@neo.rr.com> Cc: Dmitry Torokhov <dtor@mail.ru> Signed-off-by:
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Alan Cox authored
Clean up warnings in drivers/isdn by using long not int for the values where we pass void * and cast to integer types. The code is ok (ok passing the stuff this way isn't pretty but the code is valid). In all the cases I checked out the right thing happens anyway but this removes all the warnings. Signed-off-by:
Karsten Keil <kkeil@suse.de> Signed-off-by:
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Jeff Garzik authored
Acked-by:
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Jeff Garzik authored
Kill warning: drivers/char/ip2/ip2main.c: In function âip2_loadmainâ: drivers/char/ip2/ip2main.c:782: warning: label âout_classâ defined but not used This driver's initialization (and cleanup of errors during init) is extremely convoluted, and could stand to be transformed into the standard unwinding-goto style of error cleanup. Signed-off-by:
Jeff Garzik <jeff@garzik.org> Acked-by:
Michael H. Warfield <mhw@wittsend.com> Signed-off-by:
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Jeff Garzik authored
gcc issues the following warning: drivers/char/ipmi/ipmi_si_intf.c: In function âinit_ipmi_siâ: drivers/char/ipmi/ipmi_si_intf.c:1729: warning: âdata.irqâ may be used uninitialized in this function This is indeed a bug. data.irq is completely uninitialized in some code paths. Worse than that, data from a previous decode_dmi() run can easily leak through successive calls. Signed-off-by:
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Jeff Garzik authored
While reviewing the 'may be used uninitialized' bogus gcc warnings, I noticed that an error code assignment was only needed if an error had actually occured. Signed-off-by:
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Randy Dunlap authored
Add kernel-doc function headers in kernel/resource.c and use them in DocBook. Signed-off-by:
Randy Dunlap <rdunlap@xenotime.net> Signed-off-by:
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Randy Dunlap authored
Add kernel-doc function headers in kernel/dma.c and use it in DocBook. Clean up kernel-doc in mca_dma.h (the colon (':') represents a section header). Signed-off-by: -
keios authored
It is a non-standard heap-sort algorithm implementation because the index of child node is wrong . The sort function still outputs right result, but the performance is O( n * ( log(n) + 1 ) ) , about 10% ~ 20% worse than standard algorithm. Signed-off-by:
keios <keios.cn@gmail.com> Acked-by:
Zou Nan hai <nanhai.zou@intel.com> Signed-off-by:
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Franck Bui-Huu authored
Some uses of kallsyms_lookup() do not need to find out the name of a symbol and its module's name it belongs. This is specially true in arch specific code, which needs to unwind the stack to show the back trace during oops (mips is an example). In this specific case, we just need to retreive the function's size and the offset of the active intruction inside it. Adds a new entry "kallsyms_lookup_size_offset()" This new entry does exactly the same as kallsyms_lookup() but does not require any buffers to store any names. It returns 0 if it fails otherwise 1. Signed-off-by:
Franck Bui-Huu <vagabon.xyz@gmail.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by:
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David Howells authored
Permit kmalloc() to make allocations of up to 32MB if so configured. This may be useful under NOMMU conditions where vmalloc() can't do this. Signed-off-by:
David Howells <dhowells@redhat.com> Signed-off-by:
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David Howells authored
These patches make the kernel pass 64-bit inode numbers internally when communicating to userspace, even on a 32-bit system. They are required because some filesystems have intrinsic 64-bit inode numbers: NFS3+ and XFS for example. The 64-bit inode numbers are then propagated to userspace automatically where the arch supports it. Problems have been seen with userspace (eg: ld.so) using the 64-bit inode number returned by stat64() or getdents64() to differentiate files, and failing because the 64-bit inode number space was compressed to 32-bits, and so overlaps occur. This patch: Make filldir_t take a 64-bit inode number and struct kstat carry a 64-bit inode number so that 64-bit inode numbers can be passed back to userspace. The stat functions then returns the full 64-bit inode number where available and where possible. If it is not possible to represent the inode number supplied by the filesystem in the field provided by userspace, then error EOVERFLOW will be issued. Similarly, the getdents/readdir functions now pass the full 64-bit inode number to userspace where possible, returning EOVERFLOW instead when a directory entry is encountered that can't be properly represented. Note that this means that some inodes will not be stat'able on a 32-bit system with old libraries where they were before - but it does mean that there will be no ambiguity over what a 32-bit inode number refers to. Note similarly that directory scans may be cut short with an error on a 32-bit system with old libraries where the scan would work before for the same reasons. It is judged unlikely that this situation will occur because modern glibc uses 64-bit capable versions of stat and getdents class functions exclusively, and that older systems are unlikely to encounter unrepresentable inode numbers anyway. [akpm: alpha build fix] Signed-off-by:
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Andrew Morton authored
Make the pid.h macros look less revolting in an 80-col window. Signed-off-by:
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Paul Mundt authored
This seems to have been missed when unifdef went in via Sam's tree.. Signed-off-by:
Paul Mundt <lethal@linux-sh.org> Signed-off-by:
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Jeff Garzik authored
The previous hp100 changeset attempted to kill warnings, but was only tested on !CONFIG_ISA platforms. The correct conditional compilation setup involves tested CONFIG_ISA rather than just MODULE. Fixes link on CONFIG_ISA platforms (i386) in current -git. Signed-off-by:
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Andrew Morton authored
Commit 54dbc0c9 is causing various people's machines to fail to map PCI resources. Revert it in preparation for addressing the show-APICs-in-/proc/iomem requirement in a different manner. Cc: Aaron Durbin <adurbin@google.com> Cc: Andi Kleen <ak@muc.de> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by:
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- 02 Oct, 2006 5 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/roland/infinibandLinus Torvalds authored
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: IB/ehca: Tweak trace message format IB/ehca: Fix device registration IB/ipath: Fix RDMA reads RDMA/cma: Optimize error handling RDMA/cma: Eliminate unnecessary remove_list RDMA/cma: Set status correctly on route resolution error RDMA/cma: Fix device removal race RDMA/cma: Fix leak of cm_ids in case of failures
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Hoang-Nam Nguyen authored
Add an extra space to make things more readable. Signed-off-by:
Hoang-Nam Nguyen <hnguyen@de.ibm.com> Signed-off-by:
Roland Dreier <rolandd@cisco.com>
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Hoang-Nam Nguyen authored
Move the call to ib_register_device() later, since a device should not be registered until it is completely read to be used. This fixes crashes that occur if an upper-layer driver such as IPoIB is loaded before the ehca module. Signed-off-by:
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Ralph Campbell authored
The PSN used to generate the request following a RDMA read was incorrect and some state booking wasn't maintained correctly. This patch fixes that. Signed-off-by:
Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by:
Bryan O'Sullivan <bryan.osullivan@qlogic.com>
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Krishna Kumar authored
Reorganize code relating to cma_get_net_info() and rdam_create_id() to optimize error case handling (no need to alloc memory/etc. as part of rdma_create_id() if input parameters are wrong). Signed-off-by:
Krishna Kumar <krkumar2@in.ibm.com> Signed-off-by:
Sean Hefty <sean.hefty@intel.com> Signed-off-by:
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