12 Jun, 2008
1 commit
-
This implements a few changes on top of the recent kobjsize() refactoring
introduced by commit 6cfd53fc03670c7a544a56d441eb1a6cc800d72b.As Christoph points out:
virt_to_head_page cannot return NULL. virt_to_page also
does not return NULL. pfn_valid() needs to be used to
figure out if a page is valid. Otherwise the page struct
reference that was returned may have PageReserved() set
to indicate that it is not a valid page.As discussed further in the thread, virt_addr_valid() is the preferable
way to validate the object pointer in this case. In addition to fixing
up the reserved page case, it also has the benefit of encapsulating the
hack introduced by commit 4016a1390d07f15b267eecb20e76a48fd5c524ef on
the impacted platforms, allowing us to get rid of the extra checking in
kobjsize() for the platforms that don't perform this type of bizarre
memory_end abuse (every nommu platform that isn't blackfin). If blackfin
decides to get in line with every other platform and use PageReserved
for the DMA pages in question, kobjsize() will also continue to work
fine.It also turns out that compound_order() will give us back 0-order for
non-head pages, so we can get rid of the PageCompound check and just
use compound_order() directly. Clean that up while we're at it.Signed-off-by: Paul Mundt
Reviewed-by: Christoph Lameter
Acked-by: David Howells
Signed-off-by: Linus Torvalds
07 Jun, 2008
1 commit
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kobjsize() has been abusing page->index as a method for sorting out
compound order, which blows up both for page cache pages, and SLOB's
reuse of the index in struct slob_page.Presently we are not able to accurately size arbitrary pointers that
don't come from kmalloc(), so the best we can do is sort out the
compound order from the head page if it's a compound page, or default
to 0-order if it's impossible to ksize() the object.Obviously this leaves quite a bit to be desired in terms of object
sizing accuracy, but the behaviour is unchanged over the existing
implementation, while fixing the page->index oopses originally reported
here:http://marc.info/?l=linux-mm&m=121127773325245&w=2
Accuracy could also be improved by having SLUB and SLOB both set PG_slab
on ksizeable pages, rather than just handling the __GFP_COMP cases
irregardless of the PG_slab setting, as made possibly with Pekka's
patches:http://marc.info/?l=linux-kernel&m=121139439900534&w=2
http://marc.info/?l=linux-kernel&m=121139440000537&w=2
http://marc.info/?l=linux-kernel&m=121139440000540&w=2This is primarily a bugfix for nommu systems for 2.6.26, with the aim
being to gradually kill off kobjsize() and its particular brand of
object abuse entirely.Reviewed-by: Pekka Enberg
Signed-off-by: Paul Mundt
Acked-by: David Howells
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
25 May, 2008
1 commit
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The atomic_t type is 32bit but a 64bit system can have more than 2^32
pages of virtual address space available. Without this we overflow on
ludicrously large mappingsSigned-off-by: Alan Cox
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
29 Apr, 2008
1 commit
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The kernel implements readlink of /proc/pid/exe by getting the file from
the first executable VMA. Then the path to the file is reconstructed and
reported as the result.Because of the VMA walk the code is slightly different on nommu systems.
This patch avoids separate /proc/pid/exe code on nommu systems. Instead of
walking the VMAs to find the first executable file-backed VMA we store a
reference to the exec'd file in the mm_struct.That reference would prevent the filesystem holding the executable file
from being unmounted even after unmapping the VMAs. So we track the number
of VM_EXECUTABLE VMAs and drop the new reference when the last one is
unmapped. This avoids pinning the mounted filesystem.[akpm@linux-foundation.org: improve comments]
[yamamoto@valinux.co.jp: fix dup_mmap]
Signed-off-by: Matt Helsley
Cc: Oleg Nesterov
Cc: David Howells
Cc:"Eric W. Biederman"
Cc: Christoph Hellwig
Cc: Al Viro
Cc: Hugh Dickins
Signed-off-by: YAMAMOTO Takashi
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
28 Apr, 2008
1 commit
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Don't perform kobjsize operations on objects the kernel doesn't manage.
On Blackfin, drivers can get dma coherent memory by calling a function
dma_alloc_coherent(). We do this in nommu by configuring a chunk of uncached
memory at the top of memory.Since we don't want the kernel to use the uncached memory, we lie to the
kernel, and tell it that it's max memory is between 0, and the start of the
uncached dma coherent section.this all works well, until this memory gets exposed into userspace (with a
frame buffer), when you look at the process's maps, it shows the framebuf:root:/proc> cat maps
[snip]
03f0ef00-03f34700 rw-p 00000000 1f:00 192 /dev/fb0
root:/proc>This is outside the "normal" range for the kernel. When the kernel tries to
find the size of this object (when you run ps), it dies in nommu.c in
kobjsize.BUG_ON(page->index >= MAX_ORDER);
since the page we are referring to is outside what the kernel thinks is it's
max valid memory.root:~> while [ 1 ]; ps > /dev/null; done
kernel BUG at mm/nommu.c:119!
Kernel panic - not syncing: BUG!We fixed this by adding a check to reject out of range object pointers as it
already does that for NULL pointers.Signed-off-by: Michael Hennerich
Signed-off-by: Robin Getz
Acked-by: David Howells
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
06 Feb, 2008
2 commits
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This builds on top of the earlier vmalloc_32_user() work introduced by
b50731732f926d6c49fd0724616a7344c31cd5cf, as we now have places in the nommu
allmodconfig that hit up against these missing APIs.As vmalloc_32_user() is already implemented, this is moved over to
vmalloc_user() and simply made a wrapper. As all current nommu platforms are
32-bit addressable, there's no special casing we have to do for ZONE_DMA and
things of that nature as per GFP_VMALLOC32.remap_vmalloc_range() needs to check VM_USERMAP in order to figure out whether
we permit the remap or not, which means that we also have to rework the
vmalloc_user() code to grovel for the VMA and set the flag.Signed-off-by: Paul Mundt
Acked-by: David McCullough
Acked-by: David Howells
Acked-by: Greg Ungerer
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Make vmalloc functions work the same way as kfree() and friends that
take a const void * argument.[akpm@linux-foundation.org: fix consts, coding-style]
Signed-off-by: Christoph Lameter
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
05 Dec, 2007
1 commit
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If mmap_min_addr is set and a process attempts to mmap (not fixed) with a
non-null hint address less than mmap_min_addr the mapping will fail the
security checks. Since this is just a hint address this patch will round
such a hint address above mmap_min_addr.gcj was found to try to be very frugal with vm usage and give hint addresses
in the 8k-32k range. Without this patch all such programs failed and with
the patch they happily get a higher address.This patch is wrappad in CONFIG_SECURITY since mmap_min_addr doesn't exist
without it and there would be no security check possible no matter what. So
we should not bother compiling in this rounding if it is just a waste of
time.Signed-off-by: Eric Paris
Signed-off-by: James Morris
29 Oct, 2007
1 commit
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mm/nommu.c needs to #include linux/module.h for it to understand EXPORT_*()
macros.Signed-off-by: David Howells
Signed-off-by: Linus Torvalds
20 Oct, 2007
1 commit
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Fix the wishy-washy comment to clearly explain why kmalloc() can't
use the __GFP_HIGHMEM zone modifier.Signed-off-by: Robert P. J. Day
Signed-off-by: Adrian Bunk
17 Oct, 2007
1 commit
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This patch contains the following cleanups that are now possible:
- remove the unused security_operations->inode_xattr_getsuffix
- remove the no longer used security_operations->unregister_security
- remove some no longer required exit code
- remove a bunch of no longer used exportsSigned-off-by: Adrian Bunk
Acked-by: James Morris
Cc: Chris Wright
Cc: Stephen Smalley
Cc: Serge Hallyn
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
23 Aug, 2007
1 commit
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The new exec code inserts an accounted vma into an mm struct which is not
current->mm. The existing memory check code has a hard coded assumption
that this does not happen as does the security code.As the correct mm is known we pass the mm to the security method and the
helper function. A new security test is added for the case where we need
to pass the mm and the existing one is modified to pass current->mm to
avoid the need to change large amounts of code.(Thanks to Tobias for fixing rejects and testing)
Signed-off-by: Alan Cox
Cc: WU Fengguang
Cc: James Morris
Cc: Tobias Diedrich
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
22 Jul, 2007
1 commit
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Trying to survive an allmodconfig on a nommu platform results in many
screen lengths of module unhappiness. Many of the mmap related things that
binfmt_flat hooks in to are never exported despite being global, and there
are also missing definitions for vmalloc_32_user() and vm_insert_page().I've implemented vmalloc_32_user() trying to stick as close to the
mm/vmalloc.c implementation as possible, though we don't have any need for
VM_USERMAP, so groveling for the VMA can be skipped. vm_insert_page() has
been stubbed for now in order to keep the build happy.Signed-off-by: Paul Mundt
Cc: David Howells
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
20 Jul, 2007
2 commits
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Change ->fault prototype. We now return an int, which contains
VM_FAULT_xxx code in the low byte, and FAULT_RET_xxx code in the next byte.
FAULT_RET_ code tells the VM whether a page was found, whether it has been
locked, and potentially other things. This is not quite the way he wanted
it yet, but that's changed in the next patch (which requires changes to
arch code).This means we no longer set VM_CAN_INVALIDATE in the vma in order to say
that a page is locked which requires filemap_nopage to go away (because we
can no longer remain backward compatible without that flag), but we were
going to do that anyway.struct fault_data is renamed to struct vm_fault as Linus asked. address
is now a void __user * that we should firmly encourage drivers not to use
without really good reason.The page is now returned via a page pointer in the vm_fault struct.
Signed-off-by: Nick Piggin
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Nonlinear mappings are (AFAIKS) simply a virtual memory concept that encodes
the virtual address -> file offset differently from linear mappings.->populate is a layering violation because the filesystem/pagecache code
should need to know anything about the virtual memory mapping. The hitch here
is that the ->nopage handler didn't pass down enough information (ie. pgoff).
But it is more logical to pass pgoff rather than have the ->nopage function
calculate it itself anyway (because that's a similar layering violation).Having the populate handler install the pte itself is likewise a nasty thing
to be doing.This patch introduces a new fault handler that replaces ->nopage and
->populate and (later) ->nopfn. Most of the old mechanism is still in place
so there is a lot of duplication and nice cleanups that can be removed if
everyone switches over.The rationale for doing this in the first place is that nonlinear mappings are
subject to the pagefault vs invalidate/truncate race too, and it seemed stupid
to duplicate the synchronisation logic rather than just consolidate the two.After this patch, MAP_NONBLOCK no longer sets up ptes for pages present in
pagecache. Seems like a fringe functionality anyway.NOPAGE_REFAULT is removed. This should be implemented with ->fault, and no
users have hit mainline yet.[akpm@linux-foundation.org: cleanup]
[randy.dunlap@oracle.com: doc. fixes for readahead]
[akpm@linux-foundation.org: build fix]
Signed-off-by: Nick Piggin
Signed-off-by: Randy Dunlap
Cc: Mark Fasheh
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
17 Jul, 2007
1 commit
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Be consistent with VM mmap, implement expand_stack(). We can't actually do
anything other than return an error in the no MMU case though.Signed-off-by: Greg Ungerer
Cc: David Howells
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
12 Jul, 2007
1 commit
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Add a new security check on mmap operations to see if the user is attempting
to mmap to low area of the address space. The amount of space protected is
indicated by the new proc tunable /proc/sys/vm/mmap_min_addr and defaults to
0, preserving existing behavior.This patch uses a new SELinux security class "memprotect." Policy already
contains a number of allow rules like a_t self:process * (unconfined_t being
one of them) which mean that putting this check in the process class (its
best current fit) would make it useless as all user processes, which we also
want to protect against, would be allowed. By taking the memprotect name of
the new class it will also make it possible for us to move some of the other
memory protect permissions out of 'process' and into the new class next time
we bump the policy version number (which I also think is a good future idea)Acked-by: Stephen Smalley
Acked-by: Chris Wright
Signed-off-by: Eric Paris
Signed-off-by: James Morris
09 May, 2007
1 commit
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This patch moves the die notifier handling to common code. Previous
various architectures had exactly the same code for it. Note that the new
code is compiled unconditionally, this should be understood as an appel to
the other architecture maintainer to implement support for it aswell (aka
sprinkling a notify_die or two in the proper place)arm had a notifiy_die that did something totally different, I renamed it to
arm_notify_die as part of the patch and made it static to the file it's
declared and used at. avr32 used to pass slightly less information through
this interface and I brought it into line with the other architectures.[akpm@linux-foundation.org: build fix]
[akpm@linux-foundation.org: fix vmalloc_sync_all bustage]
[bryan.wu@analog.com: fix vmalloc_sync_all in nommu]
Signed-off-by: Christoph Hellwig
Cc:
Cc: Russell King
Signed-off-by: Bryan Wu
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
13 Apr, 2007
1 commit
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num_physpages is not exported out in mm/nommu.c, so the ip_conntrack module
link will fail.Signed-off-by: Bryan Wu
Acked-By: David Howells
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
23 Mar, 2007
2 commits
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Make the SYSV SHM nattch counter work correctly by forcing multiple VMAs to
be produced to represent MAP_SHARED segments, even if they overlap exactly.Using this test program:
http://people.redhat.com/~dhowells/doshm.c
Run as:
doshm sysv
I can see nattch going from one before the patch:
# /doshm sysv
Command: sysv
shmid: 65536
memory: 0xc3700000
c0b00000-c0b04000 rw-p 00000000 00:00 0
c0bb0000-c0bba788 r-xs 00000000 00:0b 14582157 /lib/ld-uClibc-0.9.28.so
c3180000-c31dede4 r-xs 00000000 00:0b 14582179 /lib/libuClibc-0.9.28.so
c3520000-c352278c rw-p 00000000 00:0b 13763417 /doshm
c3584000-c35865e8 r-xs 00000000 00:0b 13763417 /doshm
c3588000-c358aa00 rw-p 00008000 00:0b 14582157 /lib/ld-uClibc-0.9.28.so
c3590000-c359b6c0 rw-p 00000000 00:00 0
c3620000-c3640000 rwxp 00000000 00:00 0
c3700000-c37fa000 rw-S 00000000 00:06 1411 /SYSV00000000 (deleted)
c3700000-c37fa000 rw-S 00000000 00:06 1411 /SYSV00000000 (deleted)
nattch 1To two after the patch:
# /doshm sysv
Command: sysv
shmid: 0
memory: 0xc3700000
c0bb0000-c0bba788 r-xs 00000000 00:0b 14582157 /lib/ld-uClibc-0.9.28.so
c3180000-c31dede4 r-xs 00000000 00:0b 14582179 /lib/libuClibc-0.9.28.so
c3320000-c3340000 rwxp 00000000 00:00 0
c3530000-c35325e8 r-xs 00000000 00:0b 13763417 /doshm
c3534000-c353678c rw-p 00000000 00:0b 13763417 /doshm
c3538000-c353aa00 rw-p 00008000 00:0b 14582157 /lib/ld-uClibc-0.9.28.so
c3590000-c359b6c0 rw-p 00000000 00:00 0
c35a4000-c35a8000 rw-p 00000000 00:00 0
c3700000-c37fa000 rw-S 00000000 00:06 1369 /SYSV00000000 (deleted)
c3700000-c37fa000 rw-S 00000000 00:06 1369 /SYSV00000000 (deleted)
nattch 2That's +1 to nattch for each shmat() made.
Signed-off-by: David Howells
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Supply a get_unmapped_area() to fix NOMMU SYSV SHM support.
Signed-off-by: David Howells
Acked-by: Adam Litke
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
09 Dec, 2006
1 commit
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Signed-off-by: Josef Sipek
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
08 Dec, 2006
1 commit
-
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
06 Dec, 2006
1 commit
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I was playing with blackfin when i hit a neat bug ... doing an open() on a
directory and then passing that fd to mmap() would cause the kernel to hangafter poking into the code a bit more, i found that
mm/nommu.c:validate_mmap_request() checks the length and if it is 0, just
returns the address ... this is in stark contrast to mmu's
mm/mmap.c:do_mmap_pgoff() where it returns -EINVAL for 0 length requests ...
i then noticed that some other parts of the logic is out of date between the
two funcs, so perhaps that's the easy fix ?Signed-off-by: Greg Ungerer
Signed-off-by: Linus Torvalds
04 Oct, 2006
1 commit
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This patch against fixes a spelling mistake ("control" instead of "cotrol").
Signed-off-by: Michael Opdenacker
Acked-by: Alan Cox
Signed-off-by: Adrian Bunk
01 Oct, 2006
1 commit
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Don't try and give NULL to fput() in the error handling in do_mmap_pgoff()
as it'll cause an oops.Signed-off-by: David Howells
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
27 Sep, 2006
8 commits
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Make futexes work under NOMMU conditions.
This can be tested by running this in one shell:
#define SYSERROR(X, Y) \
do { if ((long)(X) == -1L) { perror(Y); exit(1); }} while(0)int main()
{
int shmid, tmp, *f, n;shmid = shmget(23, 4, IPC_CREAT|0666);
SYSERROR(shmid, "shmget");f = shmat(shmid, NULL, 0);
SYSERROR(f, "shmat");n = *f;
printf("WAIT: %p{%x}\n", f, n);
tmp = futex(f, FUTEX_WAIT, n, NULL, NULL, 0);
SYSERROR(tmp, "futex");
printf("WAITED: %d\n", tmp);tmp = shmdt(f);
SYSERROR(tmp, "shmdt");exit(0);
}And then this in the other shell:
#define SYSERROR(X, Y) \
do { if ((long)(X) == -1L) { perror(Y); exit(1); }} while(0)int main()
{
int shmid, tmp, *f;shmid = shmget(23, 4, IPC_CREAT|0666);
SYSERROR(shmid, "shmget");f = shmat(shmid, NULL, 0);
SYSERROR(f, "shmat");(*f)++;
printf("WAKE: %p{%x}\n", f, *f);
tmp = futex(f, FUTEX_WAKE, 1, NULL, NULL, 0);
SYSERROR(tmp, "futex");
printf("WOKE: %d\n", tmp);tmp = shmdt(f);
SYSERROR(tmp, "shmdt");exit(0);
}The first program will set up a SYSV IPC SHM segment and wait on a futex in it
for the number at the start to change. The program will increment that number
and wake the first program up. This leads to output of the form:SHELL 1 SHELL 2
======================= =======================
# /dowait
WAIT: 0xc32ac000{0}
# /dowake
WAKE: 0xc32ac000{1}
WAITED: 0 WOKE: 1Signed-off-by: David Howells
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Make mremap() partially work for NOMMU kernels. It may resize a VMA provided
that it doesn't exceed the size of the slab object in which the storage is
allocated that the VMA refers to. Shareable VMAs may not be resized.Moving VMAs (as permitted by MREMAP_MAYMOVE) is not currently supported.
This patch also makes use of the fact that the VMA list is now ordered to cut
it short when possible.Signed-off-by: David Howells
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Order the per-mm_struct VMA list by address so that searching it can be cut
short when the appropriate address has been exceeded.Signed-off-by: David Howells
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Permit ptrace to modify a section that's non-shared but is marked
unwritable, such as is obtained by mapping the text segment of an ELF-FDPIC
executable binary with into a binary that's being ptraced[*].[*] Under NOMMU conditions ptrace causes read-only MAP_PRIVATE mmaps to become
totally private copies because if a private mapping was actually shared
then the debugging setting breakpoints in it would potentially crash
other processes.This is done by using the VM_MAYWRITE flag rather than the VM_WRITE flag
when deciding whether to permit a write.Without this patch a debugger can't set breakpoints in the mapped text
sections of executables that are mapped read-only private, even if the
mmap() syscall has taken a private copy because PT_PTRACED is set.In addition, VM_MAYREAD is used instead of VM_READ for similar reasons.
Signed-off-by: David Howells
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Check the VMA protections in get_user_pages() against what's being asked.
This checks to see that we don't accidentally write on a non-writable VMA or
permit an I/O mapping VMA to be accessed (which may lack page structs).Signed-off-by: David Howells
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
In NOMMU arch, if run "cat /proc/self/mem", data from physical address 0
are read. This behavior is different from MMU arch. In IA32, message
"cat: /proc/self/mem: Input/output error" is reported.This issue is rootcaused by not validate the start address in NOMMU
function get_user_pages(). Following patch solves this issue.Signed-off-by: Sonic Zhang
Cc: David Howells
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Use find_vma() in the NOMMU version of access_process_vm() rather than
reimplementing it.Signed-off-by: David Howells
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Check that access_process_vm() is accessing a valid mapping in the target
process.This limits ptrace() accesses and accesses through /proc//maps to only
those regions actually mapped by a program.Signed-off-by: David Howells
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
26 Sep, 2006
1 commit
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Remove the atomic counter for slab_reclaim_pages and replace the counter
and NR_SLAB with two ZVC counter that account for unreclaimable and
reclaimable slab pages: NR_SLAB_RECLAIMABLE and NR_SLAB_UNRECLAIMABLE.Change the check in vmscan.c to refer to to NR_SLAB_RECLAIMABLE. The
intend seems to be to check for slab pages that could be freed.Signed-off-by: Christoph Lameter
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
15 Jul, 2006
1 commit
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nommu.c needs to export two more symbols for drivers to use:
remap_pfn_range and unmap_mapping_range.Signed-off-by: Luke Yang
Cc: David Howells
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
01 Jul, 2006
1 commit
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Currently a single atomic variable is used to establish the size of the page
cache in the whole machine. The zoned VM counters have the same method of
implementation as the nr_pagecache code but also allow the determination of
the pagecache size per zone.Remove the special implementation for nr_pagecache and make it a zoned counter
named NR_FILE_PAGES.Updates of the page cache counters are always performed with interrupts off.
We can therefore use the __ variant here.Signed-off-by: Christoph Lameter
Cc: Trond Myklebust
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
11 Apr, 2006
1 commit
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This patch is an enhancement of OVERCOMMIT_GUESS algorithm in
__vm_enough_memory() in mm/nommu.c.When the OVERCOMMIT_GUESS algorithm calculates the number of free pages,
the algorithm subtracts the number of reserved pages from the result
nr_free_pages().Signed-off-by: Hideo Aoki
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
22 Mar, 2006
1 commit
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Now that compound page handling is properly fixed in the VM, move nommu
over to using compound pages rather than rolling their own refcounting.nommu vm page refcounting is broken anyway, but there is no need to have
divergent code in the core VM now, nor when it gets fixed.Signed-off-by: Nick Piggin
Cc: David Howells(Needs testing, please).
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
01 Mar, 2006
1 commit
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Fix oprofile linkage. Pointed out by "Luke Yang" .
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
