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  1. 29 5月, 2005 20 次提交
  3. 28 5月, 2005 14 次提交
  5. 27 5月, 2005 6 次提交
    • A
      [PATCH] Note on ACPI build fix · 8aadff7d
      由 Alexander Nyberg 提交于 
      Even after the previous fix you can still set CONFIG_ACPI_BOOT
indirectly even without CONFIG_ACPI by choosing CONFIG_PCI and
CONFIG_PCI_MMCONFIG.

That doesn't build very well either.

This makes PCI_MMCONFIG depend on ACPI, fixing that hole.

[ I guess in theory Kconfig could follow the whole chain of dependencies
  for things that get selected, but that sounds insanely complicated, so
  we'll just fix up these things by hand.  --Linus ]
Signed-off-by: NAlexander Nyberg <alexn@telia.com>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
      8aadff7d
    • L
      [PATCH] ACPI build fix · 3e11c3ce
      由 Len Brown 提交于 
      Fix 2.6.12 CONFIG_ACPI=n build regression.
CONFIG_ACPI_BOOT shall be set only if CONFIG_ACPI.
Signed-off-by: NLen Brown <len.brown@intel.com>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
      3e11c3ce
    • A
      [PATCH] Fixup VIA IRQ quirk · 9920e914
      由 Alexander Nyberg 提交于 
      quirk_via_irqpic can't be __devinit for swsuspend
Signed-off-by: NAlexander Nyberg <alexn@telia.com>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
      9920e914
    • L
      [PATCH] VIA IRQ quirk · 25be5e6c
      由 Len Brown 提交于 
      Delete quirk_via_bridge(), restore quirk_via_irqpic() -- but now
improved to be invoked upon device ENABLE, and now only for VIA devices
-- not all devices behind VIA bridges.
Signed-off-by: NBjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: NLen Brown <len.brown@intel.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
      25be5e6c
    • P
      [PATCH] cpuset exit NULL dereference fix · 2efe86b8
      由 Paul Jackson 提交于 
      There is a race in the kernel cpuset code, between the code
to handle notify_on_release, and the code to remove a cpuset.
The notify_on_release code can end up trying to access a
cpuset that has been removed.  In the most common case, this
causes a NULL pointer dereference from the routine cpuset_path.
However all manner of bad things are possible, in theory at least.

The existing code decrements the cpuset use count, and if the
count goes to zero, processes the notify_on_release request,
if appropriate.  However, once the count goes to zero, unless we
are holding the global cpuset_sem semaphore, there is nothing to
stop another task from immediately removing the cpuset entirely,
and recycling its memory.

The obvious fix would be to always hold the cpuset_sem
semaphore while decrementing the use count and dealing with
notify_on_release.  However we don't want to force a global
semaphore into the mainline task exit path, as that might create
a scaling problem.

The actual fix is almost as easy - since this is only an issue
for cpusets using notify_on_release, which the top level big
cpusets don't normally need to use, only take the cpuset_sem
for cpusets using notify_on_release.

This code has been run for hours without a hiccup, while running
a cpuset create/destroy stress test that could crash the existing
kernel in seconds.  This patch applies to the current -linus
git kernel.
Signed-off-by: NPaul Jackson <pj@sgi.com>
Acked-by: NSimon Derr <simon.derr@bull.net>
Acked-by: NDinakar Guniguntala <dino@in.ibm.com>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
      2efe86b8
    • A
      [PATCH] remove non-cleanroom pwc driver compression · 88c18346
      由 Alan Cox 提交于 
      The original pwc author raised some questions about the reverse
engineering of the decompressor algorithms used in the pwc driver.
Having done some detailed investigation it appears those concerns that
clean room policy was not followed are reasonable.  I've also had a
friendly discussion with Philips to ask their view on this.

This removes the problem items of code which reduces the pwc
functionality in the kernel a little but leaves all the framework for
setup that will be needed for decompressors in user space (where they
eventually belong).  This change set is designed to be the minimal risk
change set given that 2.6.12 is hopefully close to hand, with a view to
merging the much updated pwc code in 2.6.13 series kernels.

Someone else can then redo the decompressors properly (clean room) in
user space.

Note that while its easy to say that it should have been caught earlier,
but the violation was really only obvious to someone who had access to
both the proprietary source and the 'GPL' source.
      88c18346