27 Jun, 2006
31 commits
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This introduces the clocksource management infrastructure. A clocksource is a
driver-like architecture generic abstraction of a free-running counter. This
code defines the clocksource structure, and provides management code for
registering, selecting, accessing and scaling clocksources.Additionally, this includes the trivial jiffies clocksource, a lowest common
denominator clocksource, provided mainly for use as an example.[hirofumi@mail.parknet.co.jp: Don't enable IRQ too early]
Signed-off-by: John Stultz
Signed-off-by: Ingo Molnar
Signed-off-by: Paul Mundt
Signed-off-by: John Stultz
Signed-off-by: OGAWA Hirofumi
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch adds "-o bh" option to force use of buffer_heads. This option
is needed when we make "nobh" as default - and if we run into problems.Signed-off-by: Badari Pulavarty
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Michael Buesch
Cc: Jeff Garzik
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Michael Buesch
Cc: Jeff Garzik
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Michael Buesch
Cc: Jeff Garzik
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Michael Buesch
Cc: Jeff Garzik
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Michael Buesch
Cc: Jeff Garzik
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Michael Buesch
Cc: Jeff Garzik
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Michael Buesch
Cc: Jeff Garzik
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Michael Buesch
Cc: Jeff Garzik
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch series replaces the old non-generic Hardware Random Number
Generator support by a fully generic RNG API.This makes it possible to register additional RNGs from modules. With this
patch series applied, Laptops with a bcm43xx chip (PowerBook) have a HW RNG
available now.Additionally two new RNG drivers are added for the "ixp4xx" and "omap"
devices. (Written by Deepak Saxena). This patch series includes the old
patches by Deepak Saxena.The old x86-rng driver has beed split.
The userspace RNG daemon can later be updated to select the RNG through
/sys/class/misc/hw_random/ for convenience. For now it is sufficient to use
cat and echo -n on the sysfs attributes.Signed-off-by: Michael Buesch
Acked-by: Jeff Garzik
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Alexey Dobriyan
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add a /proc//attr/keycreate entry that stores the appropriate context for
newly-created keys. Modify the selinux_key_alloc hook to make use of the new
entry. Update the flask headers to include a new "setkeycreate" permission
for processes. Update the flask headers to include a new "create" permission
for keys. Use the create permission to restrict which SIDs each task can
assign to newly-created keys. Add a new parameter to the security hook
"security_key_alloc" to indicate whether it is being invoked by the kernel, or
from userspace. If it is being invoked by the kernel, the security hook
should never fail. Update the documentation to reflect these changes.Signed-off-by: Michael LeMay
Signed-off-by: James Morris
Signed-off-by: David Howells
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Restrict /proc/keys such that only those keys to which the current task is
granted View permission are presented.The documentation is also updated to reflect these changes.
Signed-off-by: Michael LeMay
Signed-off-by: James Morris
Signed-off-by: David Howells
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Cause key_alloc_serial() to generate key serial numbers randomly rather than
in linear sequence.Using an linear sequence permits a covert communication channel to be
established, in which one process can communicate with another by creating or
not creating new keys within a certain timeframe. The second process can
probe for the expected next key serial number and judge its existence by the
error returned.This is a problem as the serial number namespace is globally shared between
all tasks, regardless of their context.For more information on this topic, this old TCSEC guide is recommended:
http://www.radium.ncsc.mil/tpep/library/rainbow/NCSC-TG-030.html
Signed-off-by: Michael LeMay
Signed-off-by: James Morris
Signed-off-by: David Howells
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Let keyctl_chown() change a key's owner, including attempting to transfer the
quota burden to the new user.Signed-off-by: David Howells
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Cause the keys linked to a keyring to be unlinked from it when revoked and it
causes the data attached to a user-defined key to be discarded when revoked.This frees up most of the quota a key occupied at that point, rather than
waiting for the key to actually be destroyed.Signed-off-by: David Howells
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add the ability for key creation to overrun the user's quota in some
circumstances - notably when a session keyring is created and assigned to a
process that didn't previously have one.This means it's still possible to log in, should PAM require the creation of a
new session keyring, and fix an overburdened key quota.Signed-off-by: David Howells
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch converts the combination of list_del(A) and list_add(A, B) to
list_move(A, B) under fs/.Cc: Ian Kent
Acked-by: Joel Becker
Cc: Neil Brown
Cc: Hans Reiser
Cc: Urban Widmark
Acked-by: David Howells
Acked-by: Mark Fasheh
Signed-off-by: Akinobu Mita
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch converts the combination of list_del(A) and list_add(A, B) to
list_move(A, B) under drivers/.Acked-by: Corey Minyard
Cc: Ben Collins
Acked-by: Roland Dreier
Cc: Alasdair Kergon
Cc: Gerd Knorr
Cc: Paul Mackerras
Cc: Frank Pavlic
Acked-by: Matthew Wilcox
Cc: Andrew Vasquez
Cc: Mikael Starvik
Cc: Greg Kroah-Hartman
Signed-off-by: Akinobu Mita
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch converts the combination of list_del(A) and list_add(A, B) to
list_move(A, B) under net/rxrpc.Acked-by: David Howells
Signed-off-by: Akinobu Mita
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch converts the combination of list_del(A) and list_add(A, B) to
list_move(A, B).Cc: Greg Kroah-Hartman
Cc: Ram Pai
Signed-off-by: Akinobu Mita
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch converts the combination of list_del(A) and list_add(A, B) to
list_move(A, B) under arch/.Cc: Geert Uytterhoeven
Cc: "David S. Miller"
Signed-off-by: Akinobu Mita
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch converts list_add(A, B.prev) to list_add_tail(A, &B) for
readability.Acked-by: Karsten Keil
Cc: Jan Harkes
Acked-by: Jan Kara
AOLed-by: David Woodhouse
Cc: Sridhar Samudrala
Signed-off-by: Akinobu Mita
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This method died some time ago, so kill the doc for it.
Signed-off-by: Alan Cox
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Magic sysrq fails to work on many keyboards, particulary most of notebook
keyboards. This patch fixes it.The idea is quite simple: Discard the SysRq break code if Alt is still being
held down. This way the broken keyboard can send the break code (or the user
with a normal keyboard can release the SysRq key) and the kernel waits until
the next key is pressed or the Alt key is released.Signed-off-by: Pavel Machek
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
nmi_create_files() in arch/i386/oprofile/nmi_int.c depends on
model->num_counters (number of performance counters) being less than 10.
While this is currently the case, it's too clever by half.Other archs aren't quite as clever: they assume 100. I suggest to
normalize them all to 1000.Cc: Philippe Elie
Cc: John Levon
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
There's a problem in drivers/bluetooth/dtl1_cs.c::dtl1_hci_send_frame()
If bt_skb_alloc() returns NULL, then skb_reserve(s, NSHL); will cause a
NULL pointer deref - ouch. If we can't allocate the resources we require
we need to tell the caller by returning -ENOMEM.Found by the coverity checker as bug #409
Signed-off-by: Jesper Juhl
Acked-by: Marcel Holtmann
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Convert kernel/cpu.c from semaphore to mutex.
I've reviewed all lock_cpu_hotplug() critical sections, and they all seem to
fit mutex semantics.Signed-off-by: Ingo Molnar
Cc: Rusty Russell
Cc: Ashok Raj
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
It seems ppc64 wants to lock mutexes in early bootup code, with interrupts
disabled, and they expect interrupts to stay disabled, else they crash.Work around this bug by making mutex debugging variants save/restore irq
flags.Signed-off-by: Ingo Molnar
Cc: Benjamin Herrenschmidt
Cc: Paul Mackerras
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Update this driver for recent header file movement.
Cc: David Brownell
Cc: Greg KH
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
26 Jun, 2006
9 commits
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binfmt_flat.c calls set_personality with PER_LINUX as the personality.
On the arm architecture this results in the program running in 26bit
usermode. PER_LINUX_32BIT should be used instead. This doesn't affect
other architectures that use binfmt_flat.Signed-off-by: Greg Ungerer
Signed-off-by: Linus Torvalds -
Change enable_irq() macro to be a statement, not expression.
Signed-off-by: Greg Ungerer
Signed-off-by: Linus Torvalds -
Fix PLL setting for the Coldfire 5249 CPU. This brings it into line with
the new style frequency configuration of m68knommu parts.Signed-off-by: Greg Ungerer
Signed-off-by: Linus Torvalds -
Fix flush code for the ColdFire 5206/5206e/5272 cases.
Add support for the new ColdFire 532x CPU familySigned-off-by: Greg Ungerer
Signed-off-by: Linus Torvalds -
Here is a patch to the system call handling for 5307/5272/etc to:
- fix the strace support (one tested the wrong bit)
- make all system calls a little bit faster by inlining set_esp0 and
supporting ENOSYS out of the critical path.
- remove extraneous spacesSigned-off-by: Greg Ungerer
Signed-off-by: Linus Torvalds -
This patch solve a bug triggered by execvp (this function use calloc to
store the argument list and gcc 3.4.x align the stack to word, not to dword).
This situation aren't related to signal handling and all 2.6.x have the bug.
On ColdFire targets we must force the stack to be aligned.Original patch from Andrea Tarani ,
Signed-off-by: Greg Ungerer
Signed-off-by: Linus Torvalds -
Remove list of fixed clock frequency options used for configuring master
clock, and make field an int. Much more flexible this way, no need to add
more options for every new used freqency.Signed-off-by: Greg Ungerer
Signed-off-by: Linus Torvalds -
Remove list of fixed clock frequency options used for configuring master
clock, and make field an int. Much more flexible this way, no need to add
more options for every new used freqency.Signed-off-by: Greg Ungerer
Signed-off-by: Linus Torvalds -
Add support for the AVNET 5282 board.
Patch submitted by Daniel Alomar .Signed-off-by: Greg Ungerer
Signed-off-by: Linus Torvalds
