- 06 Jun, 2003 19 commits
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Andrew Morton authored
From: Dave Olien <dmo@osdl.org> The change makes the transfer rate numbers come out right for the fibre channel version of this controller. For 1G FC, the NegotiatedSynchronousMegaTransfers is 1000, and the NegotiatedDataWidthBIts is 1. The old code assumed NegotiatedDataWidthBits was always either 8 or 16. The new code is simpler, and does the calculation correctly for all cases.
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Andrew Morton authored
From: Matthew Dobson <colpatch@us.ibm.com> This patch implements a generic version of the nr_cpus_node(node) macro implemented for ppc64 by the previous patch. The generic version simply computes an hweight of the bitmask returned by node_to_cpumask(node) topology macro. This patch also adds a generic_hweight64() function and an hweight_long() function which are used as helpers for the generic nr_cpus_node() macro. This patch also adds a for_each_node_with_cpus() macro, which is used in sched_best_cpu() in kernel/sched.c to fix the original problem of scheduling processes on CPU-less nodes. This macro should also be used in the future to avoid similar problems. Test compiled and booted by Andrew Theurer (habanero@us.ibm.com) on both x440 and ppc64.
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Andrew Morton authored
From: Matthew Dobson <colpatch@us.ibm.com> This patch defines a topology macro for ppc64, nr_cpus_node(node) which returns the number of CPUs on 'node'. This patch also adds code to compute and store these values in an array for quick lookup. Test compiled and booted by Andrew Theurer (habanero@us.ibm.com) on both x440 and ppc64.
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Andrew Morton authored
From: Matthew Dobson <colpatch@us.ibm.com> sched_best_cpu schedules processes on nodes based on node_nr_running. For CPU-less nodes, this is always 0, and thus sched_best_cpu tends to migrate tasks to these nodes, which eventually get remigrated elsewhere. This patch adds include/linux/topology.h, and modifies all includes of asm/topology.h to linux/topology.h. A subsequent patch in this series adds helper functions to linux/topology.h to ensure processes are only migrated to nodes with CPUs. Test compiled and booted by Andrew Theurer (habanero@us.ibm.com) on both x440 and ppc64.
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Andrew Morton authored
From: Ingo Molnar <mingo@elte.hu> Apparently this BUG is triggerable due to correct and expected events.
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Andrew Morton authored
As "Dmitry A. Fedorov" <D.A.Fedorov@inp.nsk.su> points out, get_current_user() has a local variable __user which conflicts with the sparse tagging. But get_current_user() has no callers.
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Andrew Morton authored
From: Adam Belay <ambx1@neo.rr.com> - cs4236 doesn't check if the memory for the resource table was successfully allocated.
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Andrew Morton authored
- Add comment about slab ctor behaviour (Ingo Oeser) - mm/slab.c:fprob() shows up in profiles a lot. Rename it to something more meaningful. - fatfs printk warning fix (Randy Dunlap) - give the the time interpolator list and lock file-static scope (hch)
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Andrew Morton authored
From: Christoph Hellwig <hch@lst.de> Currently the tty code abuses tty_driver.name as the prefix for the devfs names of the ttys. This is a very bad idea because it means the tty name changes depending on whether devfs is enabled or not, leading to different names in /proc/tty/ depending on whether we have devfs or not (and not whether it actually is mounted!) and a huge amount of ifdefs. The patch below adds a .devfs_name member instead, similar to the block device changes a few weeks ago.
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Andrew Morton authored
From: Samuel Thibault <Samuel.Thibault@ens-lyon.fr> Still working on kernel facilities for braille devices, the need for being able to force blanking and unblanking raised: even when a key is pressed, the screen must remain blank, for privacy of the blind user who is typing on the keyboard and reading on its braille terminal. I merely added an ignore_poke variable which is set, and the screen blanked. Then, poke_blanked_console returns immediatly. Upon real unblank (because of an Oops or an explicit tioclinux), ignore_poke is reset to get back to normal operation mode. I had to remove the (unnecessary ?) call to unblank_screen from set_selection to prevent mouse selection unblanking the screen. I also added a way for processes to know whether the screen is blanked (the blind user might hence know whether people can read the screen).
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Andrew Morton authored
From: Samuel Thibault <Samuel.Thibault@ens-lyon.fr> Some fixes for console blanking: on some laptops, doing VESA blanking after the bios did an apm blanking because of a screen closure thrashes the recovery (the video board doesn't seem to have synchronisation registers correctly initialized, since the LCD panel progressively turns white, maybe damaging it ?). I hence moved the schedule for vesa powerdown after the apm blank hook call, so that if it succeeds, it won't be called. I also moved the apm unblank & palette restoration after the vesa unblank, to have a more lifo scheme (also required, or the screen remains black). Btw, why del_timer_sync was called twice in timer_do_blank_screen when vesa_off_interval==0 ?
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Andrew Morton authored
From: john stultz <johnstul@us.ibm.com> Since jiffies didn't necessarily start incrementing at a second boundary, jiffies/HZ doesn't increment at the same moment as xtime.tv_sec. This causes one second wobbles in the calculation of btime (xtime.tv_sec - jiffies/HZ). This fix increases the precision of the calculation so the usec component of xtime is used as well. Additionally it fixes some of the non-atomic reading of time values.
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Andrew Morton authored
From: David Mosberger <davidm@napali.hpl.hp.com>, Christoph Hellwig I believe this is the last outstanding piece that prevents ia64 from being fully in sync with Linus' tree (yes, there are some minor ACPI changes outstanding and a toolchain bug that's left to fix, but other than that, I think we're clean). Many architectures (alpha, ia64, ppc, ppc64, sparc, and sparc64 at least) use a syscall convention which provides for a return value and a separate error flag. On those architectures, it can be beneficial if the kernel provides a mechanism to signal that a syscall call has completed successfully, even when the returned value is potentially a (small) negative number. The patch below provides a hook for such a mechanism via a macro called force_successful_syscall_return(). On x86, this would be simply a no-op (because on x86, user-level has to be hacked to handle such cases). On Alpha, it would be something along the lines of: #define force_successful_syscall_return() ptregs->r0 = 0 where "ptregs" is a pointer to the user's ptregs structure of the current task. On ia64, we have been using this for a long time: static inline void force_successful_syscall_return (void) { ia64_task_regs(current)->r8 = 0; } The other architectures (ppc, ppc64, sparc, and sparc64) currently have no mechanism to force a syscall return to be successful. But since the syscall convention already provide for a separate error flag, the arch maintainers could change this if they wanted to. There are only 3 places in the platform-independent portion of the kernel that need this macro: - memory_lseek() in drivers/char/mem.c - fs/fcntl.c for F_GETOWN - lseek for /proc/mem in fs/proc/array.c Ideally, there are a couple of other places that could benefit from this macro: - sys_getpriority() - sys_shmat() - sys_brk() - do_mmap2() - do_mremap() but these are not so critical, because the can be worked around in platform-specific code (e.g., see arch/ia64/kernel/sys_ia64.c). Note that for the above 3 cases, handling them in user level is rather suboptimal: - it would affect all lseek() syscalls, even though only /proc/mem and /dev/mem need the special treatment (at least until there are filesystems that can handle files >= 2^63 bytes) - all fcntl() calls would be affected, even though only F_GETOWN needs the special treatment so I think handling these in the kernel for the platforms that can makes tons of sense. The only limitation of force_successful_syscall_return() is that it doesn't help with system calls performed by the kernel. But the kernel does that so rarely and for such a limited set of syscalls that this is not a real problem.
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Andrew Morton authored
The addition of more fields to irq_desc_t may have broken compilation of other architectures. Go through and C99ify them (was needed anyway).
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Andrew Morton authored
Attempt to do something intelligent with IRQ handlers which don't return IRQ_HANDLED. - If they return neither IRQ_HANDLED nor IRQ_NONE, complain. - If they return IRQ_NONE more than 99900 times in 100000 interrupts, complain and disable the IRQ. I did have it at 750-in-1000, but someone had an otherwise-functioning system which triggered it. The 99.9% ratio is designed to address the problem wherein the babbling device shares an IRQ with a good device. We don't want the good device's trickle of IRQ_HANDLED callouts to defeat the lockup detector. (fat chance os this working right). - Add a kernel boot parameter `noirqdebug' to turn the whole thing off.
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Andrew Morton authored
From: Rusty Russell <rusty@rustcorp.com.au> OK, this does the *minimum* required to support DEFINE_PER_CPU inside modules. If we decide to change kmalloc_percpu later, great, we can turf this out. Basically, overallocates the amount of per-cpu data at boot to at least PERCPU_ENOUGH_ROOM if CONFIG_MODULES=y (arch-specific by default 32k: I have only 7744 bytes of percpu data in my kernel here, so makes sense), and a special allocator in module.c dishes it out.
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Andrew Morton authored
From: Rusty Russell <rusty@rustcorp.com.au> Several tweaks to the kmalloc_percpu()/kfree_percpu() interface, to allow future implementations to be more flexible, and make easier to use now we can see how it's actually being used. 1) No flags argument: GFP_ATOMIC doesn't make much sense, 2) Explicit alignment argument, so we don't have to give SMP_CACHE_BYTES alignment always, 3) Zeros memory, since most callers want that and it's not entirely trivial, 4) Convenient type-safe wrapper which takes a typename, and 5) Rename to alloc_percpu/__alloc_percpu, since usage no longer matches kmalloc.
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Roman Zippel authored
This fixes a problem which can show up with the new select facility, e.g. a symbol is forced to 'y', so we should never even try to change such symbols.
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Roman Zippel authored
This is an important fix to allow changing boolean symbols, whose dependency is 'm'. All internal symbol states must be converted from the tristate into boolean the state. I missed this change while adding expression support for defaults, please apply.
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- 05 Jun, 2003 21 commits
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Jeff Garzik authored
into redhat.com:/garz/repo/net-drivers-2.5
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Hideaki Yoshifuji authored
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Scott Feldman authored
dev_ioctl already checks capable(CAP_NET_ADMIN) for SOICETHTOOL, so privileged reference are not necessary.
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Scott Feldman authored
Add 10GbE support for ethtool.
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Zwane Mwaikambo authored
This one should be safe as we're protected by the xmit_lock in all instances
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Jeff Garzik authored
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Simon Kelley authored
Attached is a driver for Atmel at76c50x WiFi cards. This code started out as a GPL release from Atmel of pretty horrible quality and I've extensively re-worked it with the aim of making it acceptable in the kernel. Please could you take a look and either pass it into the patch stream or let me know what's wrong with it? The code has been tested on at least three different brand cards by different people. Jean Tourrilhes took a look at an earlier version an was positive. He's put incorporating this into 2.6 as a priority 1. The patch works fine on 2.5.70. The firmware issue has been addressed now. The only firmware in the driver is a small stub which reads the MAC address from NVRAM on the card. The source for that is included so there are no GPL issues. The main firmware is loaded from userspace using Manuel Estrada Sainz's sysfs firmware class. I know that the patch for that has been accepted but it hasn't turned up anywhere I can see yet. The driver compiles fine even without the firmware class. I've made a package of the firmware images which is available from my website. The remaining issues with the driver are migrating PCMCIA to the new driver model and PCI support. I'm happy to produce followup patches as the PCMCIA system gets evolved to the new driver model: the timing on that is controlled by others. This set of chips includes a PCI version and the driver should support that, but AFAIK there is no PCI hardware available anywhere. If Atmel can provide me with some it will be simple to add PCI support. The driver uses the CRC32 library module and the firmware loader. I've not put in dependencies on those, but when the lastest set of patches go into Kconfig I'll set it up so that selecting the Atmel driver selects CRC32 and FW_LOADER too.
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Stephen Hemminger authored
Inspecting the sb1000 driver showed some interesting bugs: - net device pointer is used before the device is allocated; gcc does catch this. - unregister is called even though device not registered successfully - net device is not freed on remove. Compiles but don't have hardware to test. Don't know how it ever worked though.
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Hollis Blanchard authored
Two ioctl functions in sound/oss/awe_wave.c were directly dereferencing a user-supplied pointer in a few places.
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Linus Torvalds authored
Jörn missed a few places of FAR conversion in inflate
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Jörn Engel authored
Remove the stale support for K&R function declarations through the OF() macro. This is the last patch to clean up zconf.h, at least for now.
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Jörn Engel authored
This nice macro must have been one of the good intentions on the road to hell. Completely unused. :)
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Jörn Engel authored
Just a simple s/ZEXPORT//.
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Jörn Engel authored
This one was just simple s/ZEXTERN/extern/g.
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Jörn Engel authored
Remove unused __32BIT__ and STDC macros
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Jörn Engel authored
This removes FAR, the typedefs using FAR (Bytef and friends) and the function prototypes for zalloc and zfree that should have gone earlier already.
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bk://kernel.bkbits.net/gregkh/linux/tty-2.5Linus Torvalds authored
into home.transmeta.com:/home/torvalds/v2.5/linux
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bk://ldm.bkbits.net/linux-2.5-coreLinus Torvalds authored
into home.transmeta.com:/home/torvalds/v2.5/linux
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Greg Kroah-Hartman authored
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Patrick Mochel authored
What happens when you get a patch that does something an applied patch already does, but a little better, and merge it sloppily: You end up calling the wrong function because you've defined equivalent methods in two places. Bad Pat, Bad.
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bk://kernel.bkbits.net/gregkh/linux/i2c-2.5Linus Torvalds authored
into home.transmeta.com:/home/torvalds/v2.5/linux
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