11 Jan, 2006
1 commit
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Signed-off-by: Dave Jones
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
10 Jan, 2006
1 commit
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mutex implementation - add debugging code.
Signed-off-by: Ingo Molnar
Signed-off-by: Arjan van de Ven
09 Jan, 2006
7 commits
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Convert atomic_dec_and_lock to use new atomic primitives.
Signed-off-by: Nick Piggin
Cc: "Paul E. McKenney"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Fix the default behaviour for the remap operators in bitmap, cpumask and
nodemask.As previously submitted, the pair of masks defined a map of the
positions of the set bits in A to the corresponding bits in B. This is still
true.The issue is how to map the other positions, corresponding to the unset (0)
bits in A. As previously submitted, they were all mapped to the first set bit
position in B, a constant map.When I tried to code per-vma mempolicy rebinding using these remap operators,
I realized this was wrong.This patch changes the default to map all the unset bit positions in A to the
same positions in B, the identity map.For example, if A has bits 4-7 set, and B has bits 9-12 set, then the map
defined by the pair maps each bit position in the first 32 bits as
follows:0 ==> 0
...
3 ==> 3
4 ==> 9
...
7 ==> 12
8 ==> 8
9 ==> 9
...
31 ==> 31This now corresponds to the typical behaviour desired when migrating pages and
policies from one cpuset to another.The pages on nodes within the original cpuset, and the references in memory
policies to nodes within the original cpuset, are migrated to the
corresponding cpuset-relative nodes in the destination cpuset. Other pages
and node references are left untouched.Signed-off-by: Paul Jackson
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Make DEBUG_SLAB depend on SLAB.
Signed-off-by: Ingo Molnar
Cc: Matt Mackall
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Shrink the height of a radix tree when it is partially truncated - we only do
shrinkage of full truncation at present.Signed-off-by: Nick Piggin
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Correctly determine the tags to be cleared in radix_tree_delete() so we
don't keep moving up the tree clearing tags that we don't need to. For
example, if a tag is simply not set in the deleted item, nor anywhere up
the tree, radix_tree_delete() would attempt to clear it up the entire
height of the tree.Also, tag_set() was made conditional so as not to dirty too many cachelines
high up in the radix tree. Instead, put this logic into
radix_tree_tag_set().Signed-off-by: Nick Piggin
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Introduce helper any_tag_set() rather than repeat the same code sequence 4
times.Signed-off-by: Nick Piggin
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Export a number of features required to build all the modules. It also
implements the following simple features:(*) csum_partial_copy_from_user() for MMU as well as no-MMU.
(*) __ucmpdi2().
so that they can be exported too.
Signed-off-by: David Howells
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
07 Jan, 2006
3 commits
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Sanitize some s390 Kconfig options. We have ARCH_S390, ARCH_S390X,
ARCH_S390_31, 64BIT, S390_SUPPORT and COMPAT. Replace these 6 options by
S390, 64BIT and COMPAT.Signed-off-by: Martin Schwidefsky
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Patch cleans up the alloc_bootmem fix for swiotlb. Patch removes
alloc_bootmem_*_limit api and fixes alloc_boot_*low api to do the right
thing -- allocate from low32 memory.Signed-off-by: Ravikiran Thirumalai
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
bad_range is supposed to be a temporary check. It would be a pity to throw it
out. Make it depend on CONFIG_DEBUG_VM instead.CONFIG_HOLES_IN_ZONE systems were relying on this to check pfn_valid in the
page allocator. Add that to page_is_buddy instead.Signed-off-by: Nick Piggin
Cc: Hugh Dickins
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
05 Jan, 2006
6 commits
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lib/lib.a(kobject_uevent.o)(.text+0x25f): In function `kobject_uevent':
: undefined reference to `__alloc_skb'
lib/lib.a(kobject_uevent.o)(.text+0x2a1): In function `kobject_uevent':
: undefined reference to `skb_over_panic'
lib/lib.a(kobject_uevent.o)(.text+0x31d): In function `kobject_uevent':
: undefined reference to `skb_over_panic'
lib/lib.a(kobject_uevent.o)(.text+0x356): In function `kobject_uevent':
: undefined reference to `netlink_broadcast'
lib/lib.a(kobject_uevent.o)(.init.text+0x9): In function `kobject_uevent_init':
: undefined reference to `netlink_kernel_create'
make: *** [.tmp_vmlinux1] Error 1Netlink is unconditionally enabled if CONFIG_NET, so that's OK.
kobject_uevent.o is compiled even if !CONFIG_HOTPLUG, which is lazy.
Let's compound the sin.
Signed-off-by: Andrew Morton
Signed-off-by: Greg Kroah-Hartman -
The klist reference counting in the find functions that use
klist_iter_init_node is broken. If the function (for example
driver_find_device) is called with a NULL start object then everything is
fine, the first call to next_device()/klist_next increases the ref-count of
the first node on the list and does nothing for the start object which is
NULL.If they are called with a valid start object then klist_next will decrement
the ref-count for the start object but nobody has incremented it. Logical
place to fix this would be klist_iter_init_node because the function puts a
reference of the object into the klist_iter struct.Signed-off-by: Martin Schwidefsky
Signed-off-by: Frank Pavlic
Cc: Patrick Mochel
Signed-off-by: Andrew Morton
Signed-off-by: Greg Kroah-Hartman -
Leave the overloaded "hotplug" word to susbsystems which are handling
real devices. The driver core does not "plug" anything, it just exports
the state to userspace and generates events.Signed-off-by: Kay Sievers
Signed-off-by: Greg Kroah-Hartman -
The distinction between hotplug and uevent does not make sense these
days, netlink events are the default.udev depends entirely on netlink uevents. Only during early boot and
in initramfs, /sbin/hotplug is needed. So merge the two functions and
provide only one interface without all the options.The netlink layer got a nice generic interface with named slots
recently, which is probably a better facility to plug events for
subsystem specific events.
Also the new poll() interface to /proc/mounts is a nicer way to
notify about changes than sending events through the core.
The uevents should only be used for driver core related requests to
userspace now.Signed-off-by: Kay Sievers
Signed-off-by: Greg Kroah-Hartman -
The names of these events have been confusing from the beginning
on, as they have been more like claim/release events. We needed these
events for noticing HAL if storage devices have been mounted.Thanks to Al, we have the proper solution now and can poll()
/proc/mounts instead to get notfied about mount tree changes.Signed-off-by: Kay Sievers
Signed-off-by: Greg Kroah-Hartman -
It makes zero sense to have hotplug, but not the netlink
events enabled today. Remove this option and merge the
kobject_uevent.h header into the kobject.h header file.Signed-off-by: Kay Sievers
Signed-off-by: Greg Kroah-Hartman
21 Dec, 2005
2 commits
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When a spinlock debugging check hits, we print the CPU number as an
informational thing - but there is no guarantee that preemption is off
at that point - hence we should use raw_smp_processor_id(). Otherwise
DEBUG_PREEMPT will print a warning.With this fix the warning goes away and only the spinlock-debugging info
is printed.Signed-off-by: Ingo Molnar
Signed-off-by: Linus Torvalds -
The overflow checking condition in lib/swiotlb.c was wrong.
It would first run a NULL pointer through virt_to_phys before
testing it. Since pci_map_sg overflow is not that uncommon
and causes data corruption (including broken file systems) when not
properly detected I think it's better to fix it in 2.6.15.This affects x86-64 and IA64.
Signed-off-by: Andi Kleen
Signed-off-by: Linus Torvalds
29 Nov, 2005
1 commit
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genalloc improperly stores the sizes of freed chunks, allocates overlapping
memory regions, and oopses after its in-band data is overwritten.Signed-off-by: Chris Humbert
Cc: Jes Sorensen
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
08 Nov, 2005
1 commit
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Some manual fixups for clashing kfree() cleanups etc.
07 Nov, 2005
2 commits
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Reiser4 uses radix trees to solve a trouble reiser4_readdir has serving nfs
requests.Unfortunately, radix tree api lacks an operation suitable for modifying
existing entry. This patch adds radix_tree_lookup_slot which returns pointer
to found item within the tree. That location can be then updated.Both Nick and Christoph Lameter have patches which need this as well.
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
01 Nov, 2005
1 commit
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Applied Al's change 06a544971fad0992fe8b92c5647538d573089dd4
to new location of swiotlb.cSigned-off-by: Tony Luck
31 Oct, 2005
12 commits
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I recently picked up my older work to remove unnecessary #includes of
sched.h, starting from a patch by Dave Jones to not include sched.h
from module.h. This reduces the number of indirect includes of sched.h
by ~300. Another ~400 pointless direct includes can be removed after
this disentangling (patch to follow later).
However, quite a few indirect includes need to be fixed up for this.In order to feed the patches through -mm with as little disturbance as
possible, I've split out the fixes I accumulated up to now (complete for
i386 and x86_64, more archs to follow later) and post them before the real
patch. This way this large part of the patch is kept simple with only
adding #includes, and all hunks are independent of each other. So if any
hunk rejects or gets in the way of other patches, just drop it. My scripts
will pick it up again in the next round.Signed-off-by: Tim Schmielau
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
A couple of (char *) casts removed in a previous cleanup patch in
lib/string.c:memmove() were actually useful, as they suppressed a couple of
warnings:assignment discards qualifiers from pointer target type
Fix by declaring the local variable const in the first place, so casts
aren't needed to strip the const qualifier.Signed-off-by: Paul Jackson
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch is a rewrite of the one submitted on October 1st, using modules
(http://marc.theaimsgroup.com/?l=linux-kernel&m=112819093522998&w=2).This rewrite adds a tristate CONFIG_RCU_TORTURE_TEST, which enables an
intense torture test of the RCU infratructure. This is needed due to the
continued changes to the RCU infrastructure to accommodate dynamic ticks,
CPU hotplug, realtime, and so on. Most of the code is in a separate file
that is compiled only if the CONFIG variable is set. Documentation on how
to run the test and interpret the output is also included.This code has been tested on i386 and ppc64, and an earlier version of the
code has received extensive testing on a number of architectures as part of
the PREEMPT_RT patchset.Signed-off-by: "Paul E. McKenney"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
They aren't used anywhere in that file.
Signed-off-by: Nicolas Pitre
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Fix-up the CONFIG_FRAME_POINTER help text language a bit.
Signed-off-by: Jesper Juhl
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
In the forthcoming task migration support, a key calculation will be
mapping cpu and node numbers from the old set to the new set while
preserving cpuset-relative offset.For example, if a task and its pages on nodes 8-11 are being migrated to
nodes 24-27, then pages on node 9 (the 2nd node in the old set) should be
moved to node 25 (the 2nd node in the new set.)As with other bitmap operations, the proper way to code this is to provide
the underlying calculation in lib/bitmap.c, and then to provide the usual
cpumask and nodemask wrappers.This patch provides that. These operations are termed 'remap' operations.
Both remapping a single bit and a set of bits is supported.Signed-off-by: Paul Jackson
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Cleanup trailing whitespace, blank lines, CodingStyle issues etc, for
lib/idr.cSigned-off-by: Jesper Juhl
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The first two hunks of the patch really belongs in patch 1, but I missed
them on the first pass and instead of redoing all 3 patches I stuck them in
this one.Signed-off-by: Jesper Juhl
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Removes a few pointless register keywords. register is merely a compiler
hint that access to the variable should be optimized, but gcc (3.3.6 in my
case) generates the exact same code with and without the keyword, and even
if gcc did something different with register present I think it is doubtful
we would want to optimize access to these variables - especially since this
is generic library code and there are supposed to be optimized versions in
asm/ for anything that really matters speed wise.(akpm: iirc, keyword register is a gcc no-op unless using -O0)
Signed-off-by: Jesper Juhl
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Removes some blank lines, removes some trailing whitespace, adds spaces
after commas and a few similar changes.Signed-off-by: Jesper Juhl
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add CONFIG_X86_32 for i386. This allows selecting options that only apply
to 32-bit systems.(X86 && !X86_64) becomes X86_32
(X86 || X86_64) becomes X86Signed-off-by: Brian Gerst
Cc: Sam Ravnborg
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
29 Oct, 2005
3 commits
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There is no need to include module.h in inflate.c
Signed-off-by: Olaf Hering
Cc: Benjamin Herrenschmidt
Cc: Anton Blanchard
Signed-off-by: Andrew Morton
Signed-off-by: Paul Mackerras -
This patch changes trough to through in a comment in kobject_uevent.c.
Signed-off-by: Greg Kroah-Hartman
