1. 06 Jun, 2003 22 commits
    • Linus Torvalds's avatar
      2b7c7b9e
    • Andrew Morton's avatar
      [PATCH] loop: remove the balance_dirty_pages() call · 80e8ebf2
      Andrew Morton authored
      The loop thread is getting permanently stuck in balance_dirty_pages()
      (nr_writeback is exceeded) because the loop thread itself is responsible for
      completing writeback on behalf of higher layers.
      
      So we need to take that out: don't throttle the loop thread.  Throttle the
      tasks which are generating all the dirty data instead.
      80e8ebf2
    • Andrew Morton's avatar
      [PATCH] /proc/sys/vm/min_free_kbytes · cefe53f8
      Andrew Morton authored
      From: Matthew Dobson <colpatch@us.ibm.com>
      
      This resurrects the old /proc/sys/vm/free_pages functionality: the ability to
      tell page reclaim how much free memory to maintain.
      
      This may be needed for specialised networking applications, and it provides
      an interesting way to stress the kernel: set it very low so atomic
      allocations can easily fail.
      
      Also, a 16G ppc64 box currently cruises along at 1M free memory, which is
      surely too little to supporthigh-speed networking.  We have not changed that
      setting here, but it is now possible to do so.
      
      The patch also reduces the amount of free memory which the VM will maintain
      in ZONE_HIGHMEM, as it is almost always wasted memory.
      cefe53f8
    • Andrew Morton's avatar
      [PATCH] DAC960 fix for fibre channel transfer rate · 1b0a5d8e
      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.
      1b0a5d8e
    • Andrew Morton's avatar
      [PATCH] Don't let processes be scheduled on CPU-less nodes (3/3) · 946ac12e
      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.
      946ac12e
    • Andrew Morton's avatar
      [PATCH] Don't let processes be scheduled on CPU-less nodes (2/3) · 848da4be
      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.
      848da4be
    • Andrew Morton's avatar
      [PATCH] Don't let processes be scheduled on CPU-less nodes (1/3) · 2eb57dd2
      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.
      2eb57dd2
    • Andrew Morton's avatar
      [PATCH] remove triggerable BUG() from de_thread · 7347b0d7
      Andrew Morton authored
      From: Ingo Molnar <mingo@elte.hu>
      
      Apparently this BUG is triggerable due to correct and expected events.
      7347b0d7
    • Andrew Morton's avatar
      [PATCH] remove get_current_user() · 54ed494f
      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.
      54ed494f
    • Andrew Morton's avatar
      [PATCH] cs423x fixes · 303ef7ec
      Andrew Morton authored
      From: Adam Belay <ambx1@neo.rr.com>
      
      - cs4236 doesn't check if the memory for the resource table was
        successfully allocated.
      303ef7ec
    • Andrew Morton's avatar
      [PATCH] misc fixes · 2ad69038
      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)
      2ad69038
    • Andrew Morton's avatar
      [PATCH] Fix tty devfs mess · 7807eb6a
      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.
      7807eb6a
    • Andrew Morton's avatar
      [PATCH] Console privacy for braille users · 9c481bc0
      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).
      9c481bc0
    • Andrew Morton's avatar
      [PATCH] Console blanking fix · 520aa095
      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 ?
      520aa095
    • Andrew Morton's avatar
      [PATCH] fix wobbly /proc/stat:btime · daee4676
      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.
      daee4676
    • Andrew Morton's avatar
      [PATCH] force_successful_syscall_return() · a4369a58
      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.
      a4369a58
    • Andrew Morton's avatar
      [PATCH] IRQs: fix up irq_desc initialisation for non-ia32 · 792fb4b7
      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).
      792fb4b7
    • Andrew Morton's avatar
      [PATCH] IRQs: handle bad return values from handlers · 13c01fe7
      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.
      13c01fe7
    • Andrew Morton's avatar
      [PATCH] per-cpu support inside modules (minimal) · 21af2f02
      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.
      21af2f02
    • Andrew Morton's avatar
      [PATCH] kmalloc_percpu: interface change · 32028c70
      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.
      32028c70
    • Roman Zippel's avatar
      [PATCH] ignore attempts to change unchangable symbols · 6b206194
      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.
      6b206194
    • Roman Zippel's avatar
      [PATCH] boolean symbol state fix · cffbe99e
      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.
      cffbe99e
  2. 05 Jun, 2003 18 commits
    • Jeff Garzik's avatar
      Merge redhat.com:/garz/repo/linus-2.5 · cb4acf11
      Jeff Garzik authored
      into redhat.com:/garz/repo/net-drivers-2.5
      cb4acf11
    • Hideaki Yoshifuji's avatar
      [netdrvr] C99 initializers for arcnet · 7107a09c
      Hideaki Yoshifuji authored
      7107a09c
    • Scott Feldman's avatar
      [PATCH] remove ethtool privileged references · 5443b474
      Scott Feldman authored
      dev_ioctl already checks capable(CAP_NET_ADMIN) for SOICETHTOOL, so
      privileged reference are not necessary.
      5443b474
    • Scott Feldman's avatar
      [PATCH] 10GbE ethtool support · c4a875e5
      Scott Feldman authored
      Add 10GbE support for ethtool.
      c4a875e5
    • Zwane Mwaikambo's avatar
      [PATCH] cli/sti cleanup for fmvj18x · f86e71e8
      Zwane Mwaikambo authored
      This one should be safe as we're protected by the xmit_lock in all instances
      f86e71e8
    • Jeff Garzik's avatar
      08d84e53
    • Simon Kelley's avatar
      [netdrvr] add atmel[_cs], new wireless driver · bd75dd8c
      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.
      bd75dd8c
    • Stephen Hemminger's avatar
      [PATCH] sb1000 driver bugs · b1871948
      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.
      b1871948
    • Hollis Blanchard's avatar
      [PATCH] awe_wave.c user pointer dereference · 5c9e7fc0
      Hollis Blanchard authored
      Two ioctl functions in sound/oss/awe_wave.c were directly dereferencing
      a user-supplied pointer in a few places.
      5c9e7fc0
    • Linus Torvalds's avatar
      zlib cleanup: final fixups · cd6a8eae
      Linus Torvalds authored
      Jörn missed a few places of FAR conversion in inflate
      cd6a8eae
    • Jörn Engel's avatar
      [PATCH] zlib cleanup: OF · 3e3addbb
      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.
      3e3addbb
    • Jörn Engel's avatar
      [PATCH] zlib cleanup: z_off_t · e5a74b67
      Jörn Engel authored
      This nice macro must have been one of the good intentions on the road
      to hell.  Completely unused. :)
      e5a74b67
    • Jörn Engel's avatar
      [PATCH] zlib cleanup: ZEXPORT · 319b508d
      Jörn Engel authored
      Just a simple s/ZEXPORT//.
      319b508d
    • Jörn Engel's avatar
      [PATCH] zlib cleanup: ZEXTERN · aa12a7e3
      Jörn Engel authored
      This one was just simple s/ZEXTERN/extern/g.
      aa12a7e3
    • Jörn Engel's avatar
      [PATCH] zlib cleanup: __32BIT__ and STDC · a4f5516f
      Jörn Engel authored
      Remove unused __32BIT__ and STDC macros
      a4f5516f
    • Jörn Engel's avatar
      [PATCH] zlib cleanup: remove FAR macro · ff8009c0
      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.
      ff8009c0
    • Linus Torvalds's avatar
      Merge bk://kernel.bkbits.net/gregkh/linux/tty-2.5 · 412858d5
      Linus Torvalds authored
      into home.transmeta.com:/home/torvalds/v2.5/linux
      412858d5
    • Linus Torvalds's avatar
      Merge bk://ldm.bkbits.net/linux-2.5-core · b99d34fb
      Linus Torvalds authored
      into home.transmeta.com:/home/torvalds/v2.5/linux
      b99d34fb