20 Jul, 2007
1 commit
-
Transform some calls to kmalloc/memset to a single kzalloc (or kcalloc).
Here is a short excerpt of the semantic patch performing
this transformation:@@
type T2;
expression x;
identifier f,fld;
expression E;
expression E1,E2;
expression e1,e2,e3,y;
statement S;
@@x =
- kmalloc
+ kzalloc
(E1,E2)
... when != \(x->fld=E;\|y=f(...,x,...);\|f(...,x,...);\|x=E;\|while(...) S\|for(e1;e2;e3) S\)
- memset((T2)x,0,E1);@@
expression E1,E2,E3;
@@- kzalloc(E1 * E2,E3)
+ kcalloc(E1,E2,E3)[akpm@linux-foundation.org: get kcalloc args the right way around]
Signed-off-by: Yoann Padioleau
Cc: Richard Henderson
Cc: Ivan Kokshaysky
Acked-by: Russell King
Cc: Bryan Wu
Acked-by: Jiri Slaby
Cc: Dave Airlie
Acked-by: Roland Dreier
Cc: Jiri Kosina
Acked-by: Dmitry Torokhov
Cc: Benjamin Herrenschmidt
Acked-by: Mauro Carvalho Chehab
Acked-by: Pierre Ossman
Cc: Jeff Garzik
Cc: "David S. Miller"
Acked-by: Greg KH
Cc: James Bottomley
Cc: "Antonino A. Daplas"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
12 Jul, 2007
2 commits
-
Well, first of all, I don't want to change so many files either.
What I do:
Adding a new parameter "struct bin_attribute *" in the
.read/.write methods for the sysfs binary attributes.In fact, only the four lines change in fs/sysfs/bin.c and
include/linux/sysfs.h do the real work.
But I have to update all the files that use binary attributes
to make them compatible with the new .read and .write methods.
I'm not sure if I missed any. :(Why I do this:
For a sysfs attribute, we can get a pointer pointing to the
struct attribute in the .show/.store method,
while we can't do this for the binary attributes.
I don't know why this is different, but this does make it not
so handy to use the binary attributes as the regular ones.
So I think this patch is reasonable. :)Who benefits from it:
The patch that exposes ACPI tables in sysfs
requires such an improvement.
All the table binary attributes share the same .read method.
Parameter "struct bin_attribute *" is used to get
the table signature and instance number which are used to
distinguish different ACPI table binary attributes.Without this parameter, we need to offer different .read methods
for different ACPI table binary attributes.
This is impossible as there are various ACPI tables on different
platforms, and we don't know what they are until they are loaded.Signed-off-by: Zhang Rui
Signed-off-by: Greg Kroah-Hartman -
sysfs is now completely out of driver/module lifetime game. After
deletion, a sysfs node doesn't access anything outside sysfs proper,
so there's no reason to hold onto the attribute owners. Note that
often the wrong modules were accounted for as owners leading to
accessing removed modules.This patch kills now unnecessary attribute->owner. Note that with
this change, userland holding a sysfs node does not prevent the
backing module from being unloaded.For more info regarding lifetime rule cleanup, please read the
following message.http://article.gmane.org/gmane.linux.kernel/510293
(tweaked by Greg to not delete the field just yet, to make it easier to
merge things properly.)Signed-off-by: Tejun Heo
Cc: Cornelia Huck
Cc: Andrew Morton
Signed-off-by: Greg Kroah-Hartman
15 Feb, 2007
1 commit
-
After Al Viro (finally) succeeded in removing the sched.h #include in module.h
recently, it makes sense again to remove other superfluous sched.h includes.
There are quite a lot of files which include it but don't actually need
anything defined in there. Presumably these includes were once needed for
macros that used to live in sched.h, but moved to other header files in the
course of cleaning it up.To ease the pain, this time I did not fiddle with any header files and only
removed #includes from .c-files, which tend to cause less trouble.Compile tested against 2.6.20-rc2 and 2.6.20-rc2-mm2 (with offsets) on alpha,
arm, i386, ia64, mips, powerpc, and x86_64 with allnoconfig, defconfig,
allmodconfig, and allyesconfig as well as a few randconfigs on x86_64 and all
configs in arch/arm/configs on arm. I also checked that no new warnings were
introduced by the patch (actually, some warnings are removed that were emitted
by unnecessarily included header files).Signed-off-by: Tim Schmielau
Acked-by: Russell King
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
12 Feb, 2007
1 commit
-
This patch contains two fixes for RapisIO enumeration logic:
1. Fix enumeration in configurations with multiple switches. The patch adds:
a. Enumeration of an empty switch. Empty switch is a switch that
does not have any endpoint devices attached to it (except host device
or previous switch in a chain). New code assigns a phony destination
ID associated with the switch and sets up corresponding routes.b. Adds a second pass to the enumeration to setup routes to
devices discovered after switch was scanned.2. Fix enumeration failure when riohdid parameter has non-zero value.
Current version fails to setup response path to the host when it has
destination ID other that 0.Signed-off-by: Alexandre Bounine
Acked-by: Matt Porter
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
04 Oct, 2006
1 commit
-
Signed-off-by: Adrian Bunk
01 Jul, 2006
1 commit
-
Signed-off-by: Jörn Engel
Signed-off-by: Adrian Bunk
28 Jun, 2006
1 commit
-
locking init cleanups:
- convert " = SPIN_LOCK_UNLOCKED" to spin_lock_init() or DEFINE_SPINLOCK()
- convert rwlocks in a similar mannerthis patch was generated automatically.
Motivation:
- cleanliness
- lockdep needs control of lock initialization, which the open-coded
variants do not give
- it's also useful for -rt and for lock debugging in generalSigned-off-by: Ingo Molnar
Signed-off-by: Arjan van de Ven
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
14 Jan, 2006
1 commit
-
Signed-off-by: Russell King
Signed-off-by: Greg Kroah-Hartman
09 Jan, 2006
1 commit
-
Include fixes for 2.6.14-git11. Should allow to remove sched.h from
module.h on i386, x86_64, arm, ia64, ppc, ppc64, and s390. Probably more
to come since I haven't yet checked the other archs.Signed-off-by: Tim Schmielau
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
07 Nov, 2005
4 commits
-
Updates the RIO messaging interface to pass a device instance into the
event registeration and callbacks.Signed-off-by: Matt Porter
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Addresses issues raised with the 2.6.12-rc6-mm1 RIO support. Fix dma_mask
init, shrink some code, general cleanup.Signed-off-by: Matt Porter
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Adds RapidIO enumeration/discovery.
The core code implements enumeration/discovery, management of
devices/resources, and interfaces for RIO drivers.Signed-off-by: Matt Porter
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Adds a RapidIO subsystem to the kernel. RIO is a switched fabric interconnect
used in higher-end embedded applications. The curious can look at the specs
over at http://www.rapidio.orgThe core code implements enumeration/discovery, management of
devices/resources, and interfaces for RIO drivers.There's a lot more to do to take advantages of all the hardware features.
However, this should provide a good base for folks with RIO hardware to start
contributing.Signed-off-by: Matt Porter
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
