1. 11 Nov, 2002 18 commits
    • Art Haas's avatar
    • Art Haas's avatar
      e3ee9b13
    • Art Haas's avatar
      9514a176
    • Rusty Russell's avatar
      [PATCH] New Module Loader: x86 support · 5de3fe93
      Rusty Russell authored
      This patch provides basic x86 support for modules.
      5de3fe93
    • Rusty Russell's avatar
      [PATCH] In-kernel Module Loader · aa65be3f
      Rusty Russell authored
      This is an implementation of the in-kernel module loader extending
      the try_inc_mod_count() primitive and making its use compulsory.
      This has the benifit of simplicity, and similarity to the existing
      scheme.  To reduce the cost of the constant increments and
      decrements, reference counters are lockless and per-cpu.
      
      Eliminated (coming in following patches):
       o Modversions
       o Module parameters
       o kallsyms
       o EXPORT_SYMBOL_GPL and MODULE_LICENCE checks
       o DEVICE_TABLE support.
      
      New features:
       o Typesafe symbol_get/symbol_put
       o Single "insert this module" syscall interface allows trivial userspace.
       o Raceless loading and unloading
      
      You will need the trivial replacement module utilities from:
      	http://ozlabs.org/~rusty/module-init-tools-0.6.tar.gz
      aa65be3f
    • Rusty Russell's avatar
      [PATCH] KBUILD_MODNAME define for build system · 850b830c
      Rusty Russell authored
      By Kai Germaschewski.
      
      This patch adds a -DKBUILD_MODNAME to the kernel compile, which
      contains the base of the module name which is being built.
      
       - Some sreorganization of the c_flags since they're needed for
         generating modversions (.ver) and compiling
       - Use the right KBUILD_MODNAME also when the user just wants a .i/.s/.lst
         file for debugging and also when generating modversions
       - It looks like with your current approach you can't have a ',' or '-' in
         KBUILD_MODNAME - however, that means that KBUILD_MODNAME is not quite
         right for passing module parameters for built-in modules on the command
         line, it would be confusing to pass parameters for ide-cd as
         ide_cd.foo=whatever. So that part could use a little more thought.
       - If you think your module_names trick makes a noticable difference, feel
         free to re-add it.
       - It's possible that objects are linked into more than one module - I
         suppose this shouldn't be a problem, since these objects hopefully
         don't have a module_init() nor do they export symbols. Not sure if your
         patch did handle this.
      850b830c
    • Alexander Viro's avatar
      [PATCH] misc cleanups · df993fb5
      Alexander Viro authored
       - compile fixes in amiflop.c
       - removal of dead local variables in ll_rw_blk.c
       - removed gratitious devfs_get_handle() in usb/input/hiddev.c
         (no need to do lookup for "usb" and then create "hid" in
         there - enough to create "usb/hid" at once).
      df993fb5
    • Alexander Viro's avatar
      [PATCH] dasd fixe and cleanups · 58da1aad
      Alexander Viro authored
      dasd.c forgot to set ->private_data, but was using it ;-/  Fixed.
      
      Remaining dasd_devmap_from_kdev() callers switched to
      dasd_devmap_from_bdev() (other than call from dasd_devmap_from_bdev(),
      that is).
      
      dasd_devmap_from_kdev() merged into dasd_devmap_from_bdev().
      58da1aad
    • Alexander Viro's avatar
      [PATCH] bd_dev cleanups · 1f8547ed
      Alexander Viro authored
      Eliminated several gratitious ->bd_dev uses.
      1f8547ed
    • Alexander Viro's avatar
      [PATCH] bdevname() cleanups · bb05e1aa
      Alexander Viro authored
      Bunch of kdevname() uses replaced with bdevname().
      
      __bdevname() switched from kdev_t to dev_t; callers updated.
      bb05e1aa
    • Alexander Viro's avatar
      [PATCH] ->pmtu compile fix · 17d847a1
      Alexander Viro authored
      17d847a1
    • Alexander Viro's avatar
      [PATCH] dm_ioctl() fix · 345c6010
      Alexander Viro authored
      Compile fixes, cleanup.
      345c6010
    • Alexander Viro's avatar
      [PATCH] late-boot cleanups · eecdce9c
      Alexander Viro authored
      RAID autoconfig rewritten to use syscalls and moved into do_mounts.c;
      use of devfs_get_handle() in do_mounts.c also rewritten in syscalls.
      eecdce9c
    • Alexander Viro's avatar
      [PATCH] paride/pseudo.h cleanup · 36301ff0
      Alexander Viro authored
      paride/pseudo.h fed through Lindent, use of timer replaced with
      schedule_delayed_work() - that's what the old code tried to emulate.
      36301ff0
    • Alexander Viro's avatar
      [PATCH] sys_swapoff() cleanup · 76a79709
      Alexander Viro authored
      Instead of user_path_walk() and comparing dentries, sys_swapoff()
      opens its argument and compares ->i_mapping.  Result: slightly
      simpler code and swapoff(2) becomes tolerant to e.g.
      
      	swapon /dev/sda2
      	switch root from initrd to sda1
      	....
      	swapoff /dev/sda2  # where /dev is from sda1, not from initrd
      
      current tree fails in the case above (different dentries -> no love).
      76a79709
    • Alexander Viro's avatar
      [PATCH] CLONE_NEWNS fix · efcea164
      Alexander Viro authored
      Spotted by Andries - cloning namespace assumes that new tree is
      congruent to the old one (when switching root/cwd) but actually
      inverts the order of children in each node.
      efcea164
    • Hugh Dickins's avatar
      [PATCH] loop sendfile retval · 022bfbc0
      Hugh Dickins authored
      Buffer I/O error on device loop: its use of sendfile is (trivially)
      broken - retval is usually count done, only an error when negative.
      
      This code (like the old one) does not correctly handle partial reads.
      
      Nearby spinlocking clearly bogus, delete instead of remarking on it.
      022bfbc0
    • Dave Kleikamp's avatar
      Add fs/jfs/acl.c · e36c5243
      Dave Kleikamp authored
      This file was somehow skipped (along with jfs_acl.h> when I checked in
      the ACL support.
      e36c5243
  2. 10 Nov, 2002 18 commits
    • Linus Torvalds's avatar
      Linux v2.5.47 · 5be2bc3c
      Linus Torvalds authored
      5be2bc3c
    • Andrew Morton's avatar
      [PATCH] remove duplicated disk statistics · 36e573c7
      Andrew Morton authored
      This patch will break some userspace monitoring apps in the name of
      having sane disk statistics in 2.6.x.
      
      Patch from Rick Lindsley <ricklind@us.ibm.com>
      
      In 2.5.46, there are now disk statistics being collected twice: once
      for gendisk/hd_struct, and once for dkstat.  They are collecting the
      same thing.  This patch removes dkstat, which also had the disadvantage
      of being limited by DK_MAX_MAJOR and DK_MAX_DISK. (Those #defines are
      removed too.)
      
      In addition, this patch removes disk statistics from /proc/stat since
      they are now available via sysfs and there seems to have been a general
      preference in previous discussions to "clean up" /proc/stat.  Too many
      disks being reported in /proc/stat also caused buffer overflows when
      trying to print out the data.
      
      The code in led.c from the parisc architecture has not apparently been
      recompiled under recent versions of 2.5, since it references
      kstat.dk_drive which doesn't exist in later versions.  Accordingly,
      I've added an #ifdef 0 and a comment to that code so that it may at
      least compile, albeit without one feature -- a step up from its state
      now.  If it is preferable to keep the broken code in, that patch may
      easily be excised from below.
      36e573c7
    • Andrew Morton's avatar
      [PATCH] fix page alloc/free accounting · 3e4c5912
      Andrew Morton authored
      We're currently incrementing /proc/vmstat:pgalloc in front of the
      per-cpu page queues, and incrementing /proc/vmstat:pgfree behind the
      per-cpu queues.  So they get out of whack.
      
      Change it so that we increment the counters each time someone requests
      a page.  ie: they're both in front of the queues.
      
      Also, remove a duplicated prep_new_page() call and as a consequence,
      drop the whole additional list walk in rmqueue_bulk().
      3e4c5912
    • Andrew Morton's avatar
      [PATCH] buffer_head refcounting fixes and cleanup · d9c53386
      Andrew Morton authored
      There was some strange code in the __getblk()/__find_get_block()/
      __bread() area which was performimg multiple bh_lru_install() calls as
      well as multiple touch_buffer() calls.
      
      Fix all that up.  We only need to run bh_lru_install() and
      touch_buffer() in __find_get_block().  Because if the block wasn't
      found, __getblk() will create it and will re-run __find_get_block().
      
      Also document a few things and make a couple of internal symbols static
      to buffer.c
      
      Also, don't run __find_get_block() from within
      unmap_underlying_metadata().  We hardly expect to find that block
      inside the LRU.  And we hardly expect to use it as metadata in the near
      future so there's no point in letting it evict another buffer if we
      found it.  So just go straight into the pagecache lookup for
      unmap_underlying_metadata().
      d9c53386
    • Andrew Morton's avatar
      [PATCH] Fix math underflow in disk accounting · 79d8554f
      Andrew Morton authored
      Patch from Lev Makhlis <mlev@despammed.com>
      
      The disk accounting will overflow after 4,000,000 seconds.  Extend that
      by a factor of 1000.
      79d8554f
    • Andrew Morton's avatar
      [PATCH] hugetlb: make private functions static · becd026d
      Andrew Morton authored
      Patch from William Lee Irwin III <wli@holomorphy.com>
      
      This patch makes various private structures and procedures static.
      becd026d
    • Andrew Morton's avatar
      [PATCH] hugetlb: remove /proc/ intrusion · 919de8f5
      Andrew Morton authored
      Patch from William Lee Irwin III <wli@holomorphy.com>
      
      This patch removes hugetlb's intrusion into /proc/
      919de8f5
    • Andrew Morton's avatar
      [PATCH] hugetlb: remove sysctl.c intrusion · 20078cee
      Andrew Morton authored
      Patch from William Lee Irwin III <wli@holomorphy.com>
      
      This patch removes hugetlb's intrusion into kernel/sysctl.c
      20078cee
    • Andrew Morton's avatar
      [PATCH] hugetlb: internalize hugetlb init · db6005a2
      Andrew Morton authored
      Patch from William Lee Irwin III <wli@holomorphy.com>
      
      This patch internalizes hugetlb initialization, implementing a command-line
      option in the process.
      db6005a2
    • Andrew Morton's avatar
      [PATCH] hugetlb: remove unlink_vma() · 755643ba
      Andrew Morton authored
      Patch from William Lee Irwin III <wli@holomorphy.com>
      
      This patch removes the unused function unlink_vma().
      755643ba
    • Andrew Morton's avatar
      [PATCH] hugetlb: fix zap_hugetlb_resources() · 0371880f
      Andrew Morton authored
      Patch from William Lee Irwin III <wli@holomorphy.com>
      
      This patch eliminates zap_hugetlb_resources, along with its usages.
      This actually fixes bugs, as zap_hugetlb_resources was itself buggy.
      0371880f
    • Andrew Morton's avatar
      [PATCH] SMP iowait stats · 3dd63b7d
      Andrew Morton authored
      Patch from William Lee Irwin III <wli@holomorphy.com>
      
      Idle time accounting is disturbed by the iowait statistics, for several
      reasons:
      
      (1) iowait time is not subdivided among cpus.
              The only way the distinction between idle time subtracted from
              cpus (in order to be accounted as iowait) can be made is by
              summing counters for a total and dividing the individual tick
              counters by the proportions. Any tick type resolution which is
              not properly per-cpu breaks this, meaning that cpus which are
              entirely idle, when any iowait is present on the system, will
              have all idle ticks accounted to iowait instead of true idle time.
      
      (2) kstat_read_proc() misreports iowait time
              The idle tick counter is passed twice to the sprintf(), once
              in the idle tick position, and once in the iowait tick position.
      
      (3) performance enhancement
              The O(1) scheduler was very carefully constructed to perform
              accesses only to localized cachelines whenever possible. The
              global counter violates one of its core design principles,
              and the localization of "most" accesses is in greater harmony
              with its overall design and provides (at the very least) a
              qualitative performance improvement wrt. cache.
      
      The method of correcting this is simple: embed an atomic iowait counter
      in the runqueues, find the runqueue being manipulated in io_schedule(),
      increment its atomic counter prior to schedule(), and decrement it
      after returning from schedule(), which is guaranteed to be the same one,
      as the counter incremented is tracked as a variable local to the procedure.
      Then simply sum to obtain a global iowait statistic.
      
      (Atomicity is required as the post-wait decrement may occur on a different
      cpu from the one owning the counter.)
      
      io_schedule() and io_schedule_timeout() are moved to sched.c as they must
      access the runqueues, which are private to sched.c, and nr_iowait() is
      created in order to export the sum of all runqueues' nr_iowait().
      3dd63b7d
    • Andrew Morton's avatar
      [PATCH] Fix readv/writev return value · 33f9ef1c
      Andrew Morton authored
      A patch from Janet Morgan <janetmor@us.ibm.com>
      
      If you feed an iovec with a bad address not at the zeroeth segment into
      readv or writev, it returns the wrong value.
      
      	iovec 1:  base is 8050b20 len is 64
      	iovec 2:  base is ffffffff len is 64
      	iovec 3:  base is 8050ba0 len is 64
      
      The writev should return 64 bytes but is returning 128
      
      This is because we've added the new segment's length into `count'
      before running access_ok().
      
      The patch changes it to fix that up on the slow path, if access_ok() fails.
      33f9ef1c
    • Andrew Morton's avatar
      [PATCH] misc fixes · e300f70b
      Andrew Morton authored
      - Revert the 3c59x.c compile warning fixes.  The return type of inl()
        was reverted back to the correct 32 bits.
      
      - Fix an uninitialised timer in ext3 (JBD debug mode only) - run
        setup_ro_after() during initialisation.
      
      - Fix ifdef/endif imbalance in JFS
      e300f70b
    • Jaroslav Kysela's avatar
      ALSA update · b706cbf8
      Jaroslav Kysela authored
         - CS4231 - added sparc support to merge sparc/cs4231.c code
         - ICE1712
           - added support for AK4529
           - added support for Midiman M-Audio Delta410
         - USB driver
           - fixed against newer USB API but allow compilation under 2.4
      b706cbf8
    • Jaroslav Kysela's avatar
      ALSA update · a1a1c402
      Jaroslav Kysela authored
         - CS46xx driver
           - DSP is started after initializing AC97 codecs
           - rewrite SPDIF output stuff
           - variable period size support on playback and capture
           - DAC volume mechanism  rewrite
           - IEC958 input volume mechanism rewrite
           - added "AC3 Mode Switch" in mixer
           - code cleanups
         - ENS1371 driver
           - added definitions for the ES1373 chip
           - added code to control IEC958 (S/PDIF) channel status register
      a1a1c402
    • Jaroslav Kysela's avatar
      ALSA update · a673e746
      Jaroslav Kysela authored
        - Moved initialization of card->id to card_register() function.
          The new default id is composed from the shortname given by driver.
        - ES18xx - Fixed power management defines
        - VIA82xx - The SG table is build inside hw_params (outside spinlock - memory allocation).
      a673e746
    • Jaroslav Kysela's avatar
      ALSA update - small patches · 1c033b99
      Jaroslav Kysela authored
        - added kmalloc_nocheck and vmalloc_nocheck macros
        - PCM
          - the page callback returns 'struct page *'
          - fixed delay function (moved put_user call outside spinlock)
        - OSS PCM emulation
          - fixed read() lock when stream was terminated and no data is available
        - EMU8000
         - added 'can schedule' condition to snd_emu8000_write_wait()
        - AC'97
         - added ALC650 support
        - ALI5451
          - removed double free
      1c033b99
  3. 09 Nov, 2002 4 commits