Lai Jiangshan [Thu, 8 Jan 2009 02:07:39 +0000 (18:07 -0800)]
cgroups: call find_css_set() safely in cgroup_attach_task()
In cgroup_attach_task(), tsk maybe exit when we call find_css_set(). and
find_css_set() will access to invalid css_set.
This patch increases the count before get_css_set(), and decreases it
after find_css_set().
NOTE:
css_set's refcount is also taskcount, after this patch applied, taskcount
may be off-by-one WHEN cgroup_lock() is not held. but I reviewed other
code which use taskcount, they are still correct. No regression found by
reviewing and simply testing.
So I do not use two counters in css_set. (one counter for taskcount, the
other for refcount. like struct mm_struct) If this fix cause regression,
we will use two counters in css_set.
Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Cc: Paul Menage <menage@google.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Pavel Emelyanov <xemul@openvz.org>
Cc: Balbir Singh <balbir@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Lai Jiangshan [Thu, 8 Jan 2009 02:07:38 +0000 (18:07 -0800)]
cgroups: use task_lock() for access tsk->cgroups safe in cgroup_clone()
Use task_lock() protect tsk->cgroups and get_css_set(tsk->cgroups).
Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Acked-by: Paul Menage <menage@google.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Pavel Emelyanov <xemul@openvz.org>
Cc: Balbir Singh <balbir@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Lai Jiangshan [Thu, 8 Jan 2009 02:07:37 +0000 (18:07 -0800)]
cgroups: don't put struct cgroupfs_root protected by RCU
We don't access struct cgroupfs_root in fast path, so we should not put
struct cgroupfs_root protected by RCU
But the comment in struct cgroup_subsys.root confuse us.
struct cgroup_subsys.root is used in these places:
1 find_css_set(): if (ss->root->subsys_list.next == &ss->sibling)
2 rebind_subsystems(): if (ss->root != &rootnode)
rcu_assign_pointer(ss->root, root);
rcu_assign_pointer(subsys[i]->root, &rootnode);
3 cgroup_has_css_refs(): if (ss->root != cgrp->root)
4 cgroup_init_subsys(): ss->root = &rootnode;
5 proc_cgroupstats_show(): ss->name, ss->root->subsys_bits,
ss->root->number_of_cgroups, !ss->disabled);
6 cgroup_clone(): root = subsys->root;
if ((root != subsys->root) ||
All these place we have held cgroup_lock() or we don't dereference to
struct cgroupfs_root. It's means wo don't need RCU when use struct
cgroup_subsys.root, and we should not put struct cgroupfs_root protected
by RCU.
Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Reviewed-by: Paul Menage <menage@google.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Pavel Emelyanov <xemul@openvz.org>
Cc: Balbir Singh <balbir@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Lai Jiangshan [Thu, 8 Jan 2009 02:07:36 +0000 (18:07 -0800)]
cgroups: fix cgroup_iter_next() bug
We access res->cgroups without the task_lock(), so res->cgroups may be
changed. it's unreliable, and "if (l == &res->cgroups->tasks)" may be
false forever.
We don't need add any lock for fixing this bug. we just access to struct
css_set by struct cg_cgroup_link, not by struct task_struct.
Since we hold css_set_lock, struct cg_cgroup_link is reliable.
Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Reviewed-by: Paul Menage <menage@google.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Pavel Emelyanov <xemul@openvz.org>
Cc: Balbir Singh <balbir@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Lai Jiangshan [Thu, 8 Jan 2009 02:07:36 +0000 (18:07 -0800)]
cgroups: add lock for child->cgroups in cgroup_post_fork()
When cgroup_post_fork() is called, child is seen by find_task_by_vpid(),
so child->cgroups maybe be changed, It'll incorrect.
child->cgroups<old>'s refcnt is decreased
child->cgroups<new>'s refcnt is increased
but child->cg_list is added to child->cgroups<old>'s list.
Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Reviewed-by: Paul Menage <menage@google.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Pavel Emelyanov <xemul@openvz.org>
Cc: Balbir Singh <balbir@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Li Zefan [Thu, 8 Jan 2009 02:07:35 +0000 (18:07 -0800)]
memcg: fix a typo in Kconfig
s/contoller/controller/
Signed-of-by: Li Zefan <lizf@cn.fujitsu.com>
Cc: Paul Menage <menage@google.com>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Balbir Singh <balbir@in.ibm.com>
Cc: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Li Zefan [Thu, 8 Jan 2009 02:07:34 +0000 (18:07 -0800)]
ns_cgroup: remove unused spinlock
I happened to find the spinlock in struct ns_cgroup is never used.
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Cc: Paul Menage <menage@google.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Balbir Singh <balbir@in.ibm.com>
Cc: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Li Zefan [Thu, 8 Jan 2009 02:07:33 +0000 (18:07 -0800)]
cgroups: remove some redundant NULL checks
- In cgroup_clone(), if vfs_mkdir() returns successfully,
dentry->d_fsdata will be the pointer to the newly created
cgroup and won't be NULL.
- a cgroup file's dentry->d_fsdata won't be NULL, guaranteed
by cgroup_add_file().
- When walking through the subsystems of a cgroup_fs (using
for_each_subsys), cgrp->subsys[ss->subsys_id] won't be NULL,
guaranteed by cgroup_create().
(Also remove 2 unused variables in cgroup_rmdir().
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Cc: Paul Menage <menage@google.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Balbir Singh <balbir@in.ibm.com>
Cc: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Li Zefan [Thu, 8 Jan 2009 02:07:32 +0000 (18:07 -0800)]
cgroups: documentation updates
- remove 'releasable' since it has been moved to the debug subsys.
- update lock requirements of subsys callbacks.
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Cc: Paul Menage <menage@google.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Balbir Singh <balbir@in.ibm.com>
Cc: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
KAMEZAWA Hiroyuki [Thu, 8 Jan 2009 02:07:30 +0000 (18:07 -0800)]
cgroups: make cgroup config a submenu
Making CGROUP related configs be a sub-menu.
This patch make CGROUP related configs be a sub-menu and makes 1st level
configs of "General Setup" shorter.
including following additional changes
- add help comment about CGROUPS and GROUP_SCHED.
- moved MM_OWNER config to the bottom.
(for good indent in menuconfig)
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Reviewed-by: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
Cc: Balbir Singh <balbir@in.ibm.com>
Cc: Paul Menage <menage@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jan Kara [Thu, 8 Jan 2009 02:07:29 +0000 (18:07 -0800)]
quota: don't set grace time when user isn't above softlimit
do_set_dqblk() allowed SETDQBLK quotactl to set user's grace time even if
user was not above his softlimit. This does not make much sence and by
coincidence causes quota code to omit softlimit warning when user really
exceeds softlimit. This patch makes do_set_dqblk() reset user's grace
time if he has not exceeded softlimit.
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Richard A. Holden III [Thu, 8 Jan 2009 02:07:28 +0000 (18:07 -0800)]
coda: fix fs/coda/sysctl.c build warnings when !CONFIG_SYSCTL
Fix
fs/coda/sysctl.c:14: warning: 'fs_table_header' defined but not used
fs/coda/sysctl.c:44: warning: 'fs_table' defined but not used
these are only used when CONFIG_SYSCTL is defined.
Signed-off-by: Richard A. Holden III <aciddeath@gmail.com>
Cc: Jan Harkes <jaharkes@cs.cmu.edu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Randy Dunlap [Thu, 8 Jan 2009 02:07:27 +0000 (18:07 -0800)]
jbd: remove excess kernel-doc notation
Remove excess kernel-doc from fs/jbd/transaction.c:
Warning(linux-2.6.28-git5//fs/jbd/transaction.c:764): Excess function parameter 'credits' description in 'journal_get_write_access'
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Duane Griffin [Thu, 8 Jan 2009 02:07:26 +0000 (18:07 -0800)]
ext3: tighten restrictions on inode flags
At the moment there are few restrictions on which flags may be set on
which inodes. Specifically DIRSYNC may only be set on directories and
IMMUTABLE and APPEND may not be set on links. Tighten that to disallow
TOPDIR being set on non-directories and only NODUMP and NOATIME to be set
on non-regular file, non-directories.
Introduces a flags masking function which masks flags based on mode and
use it during inode creation and when flags are set via the ioctl to
facilitate future consistency.
Signed-off-by: Duane Griffin <duaneg@dghda.com>
Acked-by: Andreas Dilger <adilger@sun.com>
Cc: <linux-ext4@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Duane Griffin [Thu, 8 Jan 2009 02:07:26 +0000 (18:07 -0800)]
ext3: don't inherit inappropriate inode flags from parent
At present INDEX is the only flag that new ext3 inodes do NOT inherit from
their parent. In addition prevent the flags DIRTY, ECOMPR, IMAGIC and
TOPDIR from being inherited. List inheritable flags explicitly to prevent
future flags from accidentally being inherited.
This fixes the TOPDIR flag inheritance bug reported at
http://bugzilla.kernel.org/show_bug.cgi?id=9866.
Signed-off-by: Duane Griffin <duaneg@dghda.com>
Acked-by: Andreas Dilger <adilger@sun.com>
Cc: <linux-ext4@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pekka Enberg [Thu, 8 Jan 2009 02:07:25 +0000 (18:07 -0800)]
ext3: allocate ->s_blockgroup_lock separately
As spotted by kmemtrace, struct ext3_sb_info is 17152 bytes on 64-bit
which makes it a very bad fit for SLAB allocators. The culprit of the
wasted memory is ->s_blockgroup_lock which can be as big as 16 KB when
NR_CPUS >= 32.
To fix that, allocate ->s_blockgroup_lock, which fits nicely in a order 2
page in the worst case, separately. This shinks down struct ext3_sb_info
enough to fit a 1 KB slab cache so now we allocate 16 KB + 1 KB instead of
32 KB saving 15 KB of memory.
Acked-by: Andreas Dilger <adilger@sun.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: <linux-ext4@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Josef Bacik [Thu, 8 Jan 2009 02:07:24 +0000 (18:07 -0800)]
jbd: improve fsync batching
There is a flaw with the way jbd handles fsync batching. If we fsync() a
file and we were not the last person to run fsync() on this fs then we
automatically sleep for 1 jiffie in order to wait for new writers to join
into the transaction before forcing the commit. The problem with this is
that with really fast storage (ie a Clariion) the time it takes to commit
a transaction to disk is way faster than 1 jiffie in most cases, so
sleeping means waiting longer with nothing to do than if we just committed
the transaction and kept going. Ric Wheeler noticed this when using
fs_mark with more than 1 thread, the throughput would plummet as he added
more threads.
This patch attempts to fix this problem by recording the average time in
nanoseconds that it takes to commit a transaction to disk, and what time
we started the transaction. If we run an fsync() and we have been running
for less time than it takes to commit the transaction to disk, we sleep
for the delta amount of time and then commit to disk. We acheive
sub-jiffie sleeping using schedule_hrtimeout. This means that the wait
time is auto-tuned to the speed of the underlying disk, instead of having
this static timeout. I weighted the average according to somebody's
comments (Andreas Dilger I think) in order to help normalize random
outliers where we take way longer or way less time to commit than the
average. I also have a min() check in there to make sure we don't sleep
longer than a jiffie in case our storage is super slow, this was requested
by Andrew.
I unfortunately do not have access to a Clariion, so I had to use a
ramdisk to represent a super fast array. I tested with a SATA drive with
barrier=1 to make sure there was no regression with local disks, I tested
with a 4 way multipathed Apple Xserve RAID array and of course the
ramdisk. I ran the following command
fs_mark -d /mnt/ext3-test -s 4096 -n 2000 -D 64 -t $i
where $i was 2, 4, 8, 16 and 32. I mkfs'ed the fs each time. Here are my
results
type threads with patch without patch
sata 2 24.6 26.3
sata 4 49.2 48.1
sata 8 70.1 67.0
sata 16 104.0 94.1
sata 32 153.6 142.7
xserve 2 246.4 222.0
xserve 4 480.0 440.8
xserve 8 829.5 730.8
xserve 16 1172.7 1026.9
xserve 32 1816.3 1650.5
ramdisk 2 2538.3 1745.6
ramdisk 4 2942.3 661.9
ramdisk 8 2882.5 999.8
ramdisk 16 2738.7 1801.9
ramdisk 32 2541.9 2394.0
Signed-off-by: Josef Bacik <jbacik@redhat.com>
Cc: Andreas Dilger <adilger@sun.com>
Cc: Arjan van de Ven <arjan@infradead.org>
Cc: Ric Wheeler <rwheeler@redhat.com>
Cc: <linux-ext4@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Duane Griffin [Thu, 8 Jan 2009 02:07:21 +0000 (18:07 -0800)]
ext2: tighten restrictions on inode flags
At the moment there are few restrictions on which flags may be set on
which inodes. Specifically DIRSYNC may only be set on directories and
IMMUTABLE and APPEND may not be set on links. Tighten that to disallow
TOPDIR being set on non-directories and only NODUMP and NOATIME to be set
on non-regular file, non-directories.
Introduces a flags masking function which masks flags based on mode and
use it during inode creation and when flags are set via the ioctl to
facilitate future consistency.
Signed-off-by: Duane Griffin <duaneg@dghda.com>
Acked-by: Andreas Dilger <adilger@sun.com>
Cc: <linux-ext4@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Duane Griffin [Thu, 8 Jan 2009 02:07:20 +0000 (18:07 -0800)]
ext2: don't inherit inappropriate inode flags from parent
At present BTREE/INDEX is the only flag that new ext2 inodes do NOT
inherit from their parent. In addition prevent the flags DIRTY, ECOMPR,
INDEX, IMAGIC and TOPDIR from being inherited. List inheritable flags
explicitly to prevent future flags from accidentally being inherited.
This fixes the TOPDIR flag inheritance bug reported at
http://bugzilla.kernel.org/show_bug.cgi?id=9866.
Signed-off-by: Duane Griffin <duaneg@dghda.com>
Acked-by: Andreas Dilger <adilger@sun.com>
Cc: <linux-ext4@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pekka J Enberg [Thu, 8 Jan 2009 02:07:19 +0000 (18:07 -0800)]
ext2: allocate ->s_blockgroup_lock separately
As spotted by kmemtrace, struct ext2_sb_info is 17024 bytes on 64-bit
which makes it a very bad fit for SLAB allocators. The culprit of the
wasted memory is ->s_blockgroup_lock which can be as big as 16 KB when
NR_CPUS >= 32.
To fix that, allocate ->s_blockgroup_lock, which fits nicely in a order 2
page in the worst case, separately. This shinks down struct ext2_sb_info
enough to fit a 1 KB slab cache so now we allocate 16 KB + 1 KB instead of
32 KB saving 15 KB of memory.
Acked-by: Andreas Dilger <adilger@sun.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: <linux-ext4@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Qinghuang Feng [Thu, 8 Jan 2009 02:07:18 +0000 (18:07 -0800)]
ext2: fix ext2_splice_branch() comments
There is no argument named @chain in ext2_splice_branch, remove references
to it.
Signed-off-by: Qinghuang Feng <qhfeng.kernel@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jüri Reitel [Thu, 8 Jan 2009 02:07:16 +0000 (18:07 -0800)]
rtc-ds1307: remove legacy probe() checks
Remove RTC register value checks from the rtc-ds1307 probe() function.
They were left over from the legacy style I2C driver, which had to defend
against finding a non-RTC chip when the driver was probed.
Also fix a minor glitch in the alarm support: DS1307 chips don't have
alarms, so name those methods after one of the chips which actually *do*
have alarms (DS1337).
Signed-off-by: Jüri Reitel <juri.reitel@liewenthal.ee>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Sebastien Barre <sbarre@sdelcc.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Acked-by: Jean Delvare <khali@linux-fr.org>
Cc: Rodolfo Giometti <giometti@enneenne.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
BARRE Sebastien [Thu, 8 Jan 2009 02:07:13 +0000 (18:07 -0800)]
rtc-ds1307: SMBus compatibility
Change i2c access functions to SMBus access functions in order to use the
ds1307 with SMBus adapter.
Signed-off-by: Sebastien Barre <sbarre@sdelcc.com>
Acked-by: David Brownell <david-b@pacbell.net>
Tested-by: David Brownell <david-b@pacbell.net>
Acked-by: Alessandro Zummo <a.zummo@towertech.it>
Acked-by: Jean Delvare <khali@linux-fr.org>
Cc: Rodolfo Giometti <giometti@enneenne.com>
Tested-by: Sebastien Barre <sbarre@sdelcc.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Alex Zeffertt [Thu, 8 Jan 2009 02:07:11 +0000 (18:07 -0800)]
xen: add xenfs to allow usermode <-> Xen interaction
The xenfs filesystem exports various interfaces to usermode. Initially
this exports a file to allow usermode to interact with xenbus/xenstore.
Traditionally this appeared in /proc/xen. Rather than extending procfs,
this patch adds a backward-compat mountpoint on /proc/xen, and provides
a xenfs filesystem which can be mounted there.
Signed-off-by: Alex Zeffertt <alex.zeffertt@eu.citrix.com>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Qinghuang Feng [Thu, 8 Jan 2009 02:07:10 +0000 (18:07 -0800)]
drivers/xen/xenbus/xenbus_client.c: cleanup kerneldoc
no argument named @xbt in xenbus_switch_state(), remove it.
Signed-off-by: Qinghuang Feng <qhfeng.kernel@gmail.com>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Dave Kleikamp [Thu, 8 Jan 2009 15:46:31 +0000 (09:46 -0600)]
async: Don't call async_synchronize_full_special() while holding sb_lock
sync_filesystems() shouldn't be calling async_synchronize_full_special
while holding a spinlock. The second while loop in that function is the
right place for this anyway.
Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Reported-by: Grissiom <chaos.proton@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Benjamin Krill [Wed, 7 Jan 2009 09:32:38 +0000 (10:32 +0100)]
serial: Add driver for the Cell Network Processor serial port NWP device
Add support for the nwp serial device which is connected to a DCR bus. It
uses the of_serial device driver to determine necessary properties from
the device tree. The supported device is added as serial port number 85.
NWP stands for network processor and it is part of the QPACE - Quantum
Chromodynamics Parallel Computing on the Cell Broadband Engine project.
The implementation is a lightweight uart implementation with the focus
to consume as little resources as possible and it is connected to a
DCR bus.
Signed-off-by: Benjamin Krill <ben@codiert.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Steven Rostedt [Tue, 6 Jan 2009 18:49:17 +0000 (18:49 +0000)]
powerpc: enable dynamic ftrace
This patch enables dynamic ftrace. The PowerPC port was dependent on
other code not yet in mainline. Now that the code is, we can now
let PowerPC compile with dynamic ftrace.
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Stephen Rothwell [Tue, 6 Jan 2009 13:58:22 +0000 (13:58 +0000)]
powerpc/cell: Fix the prototype of create_vma_map()
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Anton Vorontsov [Mon, 29 Dec 2008 06:40:35 +0000 (06:40 +0000)]
powerpc/mm: Make clear_fixmap() actually work
The clear_fixmap() routine issues map_page() with flags set to 0.
Currently this causes a BUG_ON() inside the map_page(), as it assumes
that a PTE should be clear before mapping.
This patch makes the map_page() to trigger the BUG_ON() only if the
flags were set.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Anton Vorontsov [Wed, 17 Dec 2008 10:09:35 +0000 (10:09 +0000)]
powerpc/kdump: Use ppc_save_regs() in crash_setup_regs()
The patch replaces internal registers dump implementation with
ppc_save_regs(). From now on PPC64 and PPC32 are using the same
code for crash_setup_regs().
NOTE: The old regs dump implementation was capturing SP (r1) directly
as is, so you could see crash_kexec() function on top of the back-trace.
But ppc_save_regs() goes up one stack frame, so you'll not see it
anymore, at the top-level you'll see who actually triggered the crash
dump instead.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Kumar Gala [Wed, 7 Jan 2009 05:00:05 +0000 (23:00 -0600)]
powerpc: Export cacheable_memzero as its now used in a driver
The Freescale PowerPC specific gianfar driver (gig-e) uses
cacheable_memzero for performance reasons we need to export
the symbol to allow the driver to be built as a module.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Benjamin Herrenschmidt [Tue, 6 Jan 2009 17:56:51 +0000 (17:56 +0000)]
powerpc: Fix missing semicolons in mmu_decl.h
This is a brown paper bag from one of my earlier patches that
breaks build on 40x and 8xx.
And yes, I've now added 40x and 8xx to my list of test configs :-)
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Ingo Molnar [Tue, 6 Jan 2009 14:06:28 +0000 (14:06 +0000)]
powerpc/pasemi: local_irq_save uses an unsigned long
[Split from a larger patch - sfr]
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Ingo Molnar [Tue, 6 Jan 2009 14:03:44 +0000 (14:03 +0000)]
powerpc/cell: Fix some u64 vs. long types
in/out_be64() work on u64s.
The first parameter to ppc_md.ioremap is a phys_addr_t.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Ingo Molnar [Tue, 6 Jan 2009 14:01:23 +0000 (14:01 +0000)]
powerpc/cell: Use correct types in beat files
Only pass the address of a u64 if that is what the function requires.
[Split out of a larger patch - sfr]
[update comment - sfr]
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Ingo Molnar [Tue, 6 Jan 2009 13:56:52 +0000 (13:56 +0000)]
powerpc: Use correct type in prom_init.c
tce_entryp is a "u64 *" not an "unsigned long *".
[Split from a large patch -sfr]
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Stephen Rothwell [Tue, 6 Jan 2009 13:54:25 +0000 (13:54 +0000)]
powerpc: Remove unnecessary casts
of_get_flat_dt_prop() returns a "void *", so we don't need to cast when
assigning its result to a pointer variable.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Geoff Levand [Thu, 8 Jan 2009 01:22:07 +0000 (17:22 -0800)]
mtd/ps3vram: Use _PAGE_NO_CACHE in memory ioremap
Use _PAGE_NO_CACHE for gpu memory ioremap. Also,
add __iomem attribute to gpu memory pointer and
change use of memset() to memset_io().
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Geoff Levand [Thu, 8 Jan 2009 01:22:02 +0000 (17:22 -0800)]
mtd/ps3vram: Use msleep in waits
Replace the use of udelay() with msleep() in the looping wait routines
ps3vram_notifier_wait() and ps3vram_wait_ring().
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Geoff Levand [Tue, 6 Jan 2009 11:32:28 +0000 (11:32 +0000)]
mtd/ps3vram: Use proper kernel types
Replace the use of stdint.h types with kernel types
in the ps3vram driver.
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Geoff Levand [Tue, 6 Jan 2009 11:32:21 +0000 (11:32 +0000)]
mtd/ps3vram: Cleanup ps3vram driver messages
Cleanup the ps3vram driver messages. Add a new struct device pointer
variable dev to struct ps3vram_priv and use dev_dbg(), pr_dbg(), etc.
where appropriate.
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Geoff Levand [Tue, 6 Jan 2009 11:32:15 +0000 (11:32 +0000)]
mtd/ps3vram: Remove ps3vram debug routines
Remove the ps3vram debug routines ps3vram_dump_ring() and
ps3vram_dump_reports(). These routines are not needed.
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Geert Uytterhoeven [Tue, 6 Jan 2009 11:32:03 +0000 (11:32 +0000)]
mtd/ps3vram: Add modalias support to the ps3vram driver
Update ps3vram driver to use the new ps3 three id modalias support.
Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Jim Paris [Tue, 6 Jan 2009 11:32:10 +0000 (11:32 +0000)]
mtd/ps3vram: Add ps3vram driver for accessing video RAM as MTD
Add ps3vram driver, which exposes unused video RAM on the PS3 as a MTD
device suitable for storage or swap. Fast data transfer is achieved
using a local cache in system RAM and DMA transfers via the GPU.
Signed-off-by: Vivien Chappelier <vivien.chappelier@free.fr>
Signed-off-by: Jim Paris <jim@jtan.com>
Acked-by: Geoff Levand <geoffrey.levand@am.sony.com>
Acked-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Kamalesh Babulal [Tue, 6 Jan 2009 05:57:24 +0000 (05:57 +0000)]
powerpc: Fix iseries drivers build failure without CONFIG_VIOPATH
iSeries dependent drivers fail to build, when CONFIG_VIOPATH is disabled.
Fix the problem by making those drivers select it.
Signed-off-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Mohan Kumar M [Tue, 6 Jan 2009 00:23:01 +0000 (00:23 +0000)]
powerpc: Enable RELOCATABLE option for CRASH_DUMP
Enable RELOCATABLE option if user selects CRASH_DUMP option. Without this
patch user has to first select RELOCATABLE option and then has to enable
CRASH_DUMP option.
Signed-off-by: M. Mohan Kumar <mohan@in.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Dave Liu [Tue, 30 Dec 2008 23:42:55 +0000 (23:42 +0000)]
powerpc: Remove the redundant _tlbil_pid at SMP case
Signed-off-by: Dave Liu <daveliu@freescale.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Stephen Rothwell [Tue, 30 Dec 2008 17:09:15 +0000 (17:09 +0000)]
powerpc/cell: local_irq_save takes an unsigned long
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Stephen Rothwell [Tue, 30 Dec 2008 17:06:15 +0000 (17:06 +0000)]
powerpc/cell: Bitops work on unsigned longs
So change the flags member of struct spu from u64 to unsigned long.
This change will also prevent some warnings when we change u64 to unsigned
long long.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Matthias Fuchs [Tue, 30 Dec 2008 00:59:38 +0000 (00:59 +0000)]
powerpc: Add ioctls for RS485 mode control of serial drivers
These ioctls take a struct serial_rs485
(see linux/serial.h) as argument. They are already available
on x86. This patch adds them for the powerpc architecture.
Signed-off-by: Matthias Fuchs <mfuchs@ma-fu.de>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Paul Mackerras [Sun, 28 Dec 2008 14:12:57 +0000 (14:12 +0000)]
powerpc: Fix pciconfig_iobase system call on PCI-Express powermac
X has been failing to start on my quad G5 powermac since commit
1fd0f52583a85b21a394201b007bc1ee104b235d ("powerpc: Fix domain numbers
in /proc on 64-bit") went in. The reason is that the change allows X
to see the PCI-PCI bridge above the video card (previously it was
obscured by the fact that there were two "00" directories in
/proc/bus/pci), and the pciconfig_iobase system call on the bridge is
failing because of a hack that we have to return information about the
AGP bus when X asks about bus 0. This machine doesn't have an AGP bus
(it has PCI Express) and so the pciconfig_iobase call is returning -1,
which ultimately causes X to fail to start.
This fixes it by checking that we have an AGP bridge before
redirecting the pciconfig_iobase call to return information about the
AGP bus. With this, X starts successfully both on a quad G5 with
PCI Express and on an older dual G5 with AGP.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Julia Lawall [Thu, 25 Dec 2008 04:34:04 +0000 (04:34 +0000)]
powerpc/pasemi: Use DEFINE_SPINLOCK
SPIN_LOCK_UNLOCKED is deprecated. The following makes the change suggested
in Documentation/spinlocks.txt
The semantic patch that makes this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)
// <smpl>
@@
declarer name DEFINE_SPINLOCK;
identifier xxx_lock;
@@
- spinlock_t xxx_lock = SPIN_LOCK_UNLOCKED;
+ DEFINE_SPINLOCK(xxx_lock);
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Julia Lawall [Thu, 25 Dec 2008 04:33:34 +0000 (04:33 +0000)]
powerpc/52xx: Use DEFINE_SPINLOCK
SPIN_LOCK_UNLOCKED is deprecated. The following makes the change suggested
in Documentation/spinlocks.txt
The semantic patch that makes this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)
// <smpl>
@@
declarer name DEFINE_SPINLOCK;
identifier xxx_lock;
@@
- spinlock_t xxx_lock = SPIN_LOCK_UNLOCKED;
+ DEFINE_SPINLOCK(xxx_lock);
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Nathan Lynch [Tue, 23 Dec 2008 18:55:54 +0000 (18:55 +0000)]
powerpc: Rewrite sysfs processor cache info code
The current code for providing processor cache information in sysfs
has the following deficiencies:
- several complex functions that are hard to understand
- implicit recursion (cache_desc_release -> kobject_put -> cache_desc_release)
- explicit recursion (create_cache_index_info)
- use of two per-cpu arrays when one would suffice
- duplication of work on systems where CPUs share cache
Also, when I looked at implementing support for a shared_cpu_map
attribute, it was pretty much impossible to handle hotplug without
checking every single online CPU's cache_desc list and fixing things
up... not that this is a hot path, but it would have introduced
O(n^2)-ish behavior during boot. Addressing this involved rethinking
the core data structures used, which didn't lend itself to an
incremental approach.
This implementation maintains a "forest" (potentially more than one
tree) of cache objects which reflects the system's cache topology.
Cache objects are instantiated as needed as CPUs come online. A
per-cpu array is used mainly for sysfs-related bookkeeping; the
objects in the array just point to the appropriate points in the
forest.
This maintains compatibility with the existing code and includes some
enhancements:
- Implement the shared_cpu_map attribute, which is essential for
enabling userspace to discover the system's overall cache topology.
- Use cache-block-size properties if cache-line-size is not available.
I chose to place this implementation in a new file since it would have
roughly doubled the size of sysfs.c, which is already kind of messy.
Signed-off-by: Nathan Lynch <ntl@pobox.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Michael Ellerman [Mon, 22 Dec 2008 23:23:18 +0000 (23:23 +0000)]
powerpc/iseries: Kexec is known not to work on iseries
The non-zero return from the prepare callback is returned by sys_kexec_load()
to userspace, indicating that kexec is not supported on the machine.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Grant Likely [Fri, 19 Dec 2008 14:57:20 +0000 (14:57 +0000)]
powerpc: Copy bootable images in the default install script
This patch makes the default install script (arch/powerpc/boot/install.sh)
copy the bootable image files into the install directory. Before this
patch only the vmlinux image file was copied.
This patch makes the default 'make install' command useful for embedded
development when $(INSTALL_PATH) is set in the environment.
As a side effect, this patch changes the calling convention of the
install.sh script. Instead of a single 5th parameter, the script is now
passed a list of all the target images stored in the $(image-y) Makefile
variable. This should be backwards compatible with existing install scripts
since it just adds additional arguments and does not change existing ones.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Dave Hansen [Tue, 9 Dec 2008 08:21:36 +0000 (08:21 +0000)]
powerpc/mm: Cleanup careful_allocation(): consolidate memset()
Both users of careful_allocation() immediately memset() the
result. So, just do it in one place.
Also give careful_allocation() a 'z' prefix to bring it in
line with kzmalloc() and friends.
Signed-off-by: Dave Hansen <dave@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Dave Hansen [Tue, 9 Dec 2008 08:21:35 +0000 (08:21 +0000)]
powerpc/mm: Make careful_allocation() return virtual addrs
Since we memset() the result in both of the uses here,
just make careful_alloc() return a virtual address.
Also, add a separate variable to store the physial
address that comes back from the lmb_alloc() functions.
This makes it less likely that someone will screw it up
forgetting to convert before returning since the vaddr
is always in a void* and the paddr is always in an
unsigned long.
I admit this is arbitrary since one of its users needs
a paddr and one a vaddr, but it does remove a good
number of casts.
Signed-off-by: Dave Hansen <dave@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Dave Hansen [Tue, 9 Dec 2008 08:21:33 +0000 (08:21 +0000)]
powerpc/mm:: Cleanup careful_allocation(): bootmem already panics
If we fail a bootmem allocation, the bootmem code itself
panics. No need to redo it here.
Also change the wording of the other panic. We don't
strictly have to allocate memory on the specified node.
It is just a hint and that node may not even *have* any
memory on it. In that case we can and do fall back to
other nodes.
Signed-off-by: Dave Hansen <dave@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Dave Hansen [Tue, 9 Dec 2008 08:21:32 +0000 (08:21 +0000)]
powerpc/mm: Add better comment on careful_allocation()
The behavior in careful_allocation() really confused me
at first. Add a comment to hopefully make it easier
on the next doofus that looks at it.
Signed-off-by: Dave Hansen <dave@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Nicolas Palix [Wed, 3 Dec 2008 00:25:03 +0000 (00:25 +0000)]
powerpc/powermac: Add missing of_node_put
This patch fixes some unbalanced OF node references in the
powermac code
Signed-off-by: Nicolas Palix <npalix@diku.dk>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Benjamin Herrenschmidt [Tue, 11 Nov 2008 17:45:52 +0000 (17:45 +0000)]
powerpc/pci: Reserve legacy regions on PCI
There's a problem on some embedded platforms when we re-assign
everything on PCI, such as 44x. The generic code tries to avoid
assigning devices to addresses overlapping the low legacy
addresses such as VGA hard decoded areas using constants that
are unfortunately no good for us, as they don't take into account
the address translation we do to access PCI busses.
Thus we end up allocating things like IO BARs to 0, which is
technically legal, but will shadow hard decoded ports for use
by things like VGA cards.
This works around it by attempting to reserve legacy regions
before we try to assign addresses.
NOTE: This may have nasty side effects in cases I haven't tested
yet:
- We try to use FW mappings (ie. powermac) and the FW has allocated
a conflicting address over those legacy regions. This will typically
happen. I would expect the new code to just fail with an informative
message without harm but I haven't had a chance to test that scenario
yet.
- A device with fixed BARs overlapping those legacy addresses such
as an IDE controller in legacy mode is in the system. I don't know
for sure yet what will happen there, I have to test :-)
Ideally, we should change PCIBIOS_MIN_IO/MIN_MEM accross the board
to take a bus pointer so they can provide appropriate per-bus translated
values to the generic code but that's a more invasive patch. I will
do that in the future, but in the meantime, this fixes the problem
locally
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Benjamin Herrenschmidt [Thu, 8 Jan 2009 05:24:38 +0000 (16:24 +1100)]
Merge commit 'origin/master' into next
Linus Torvalds [Thu, 8 Jan 2009 01:23:53 +0000 (17:23 -0800)]
Merge git://git./linux/kernel/git/davem/sparc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
sparc64: Work around branch tracer warning.
sparc64: Fix unsigned long long warnings in drivers.
sparc64: Use unsigned long long for u64.
sparc: refactor code in fault_32.c
sparc64: refactor code in init_64.c
sparc64: refactor code in viohs.c
sparc: make proces_ver_nack a bit more readable
Linus Torvalds [Thu, 8 Jan 2009 01:22:04 +0000 (17:22 -0800)]
Merge branch 'for_linus' of git://git./linux/kernel/git/mchehab/linux-2.6
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6:
V4L/DVB (10191a): Update MAINTAINERS entries on media drivers
V4L/DVB (10190): cx88: Fix some Kbuild troubles
V4L/DVB (10189): dm1105: Fix build with INPUT=m and DVB_DM1105=y
V4L/DVB (10185): Use negated usb_endpoint_xfer_control, etc
V4L/DVB (10182): tda8290: fix TDA8290 + TDA18271 initialization
V4L/DVB (10181): v4l2-device: Fix some sparse warnings
V4L/DVB (10180): drivers/media: Fix a number of sparse warnings
V4L/DVB (10179): tda8290: Fix two sparse warnings
V4L/DVB (10178): dvb_frontend: Fix some sparse warnings due to static symbols
V4L/DVB (10177): Fix sparse warnings on em28xx
V4L/DVB (10176b): pxa-camera: fix redefinition warnings and missing DMA definitions
V4L/DVB (10176a): Switch remaining clear_user_page users over to clear_user_highpage
Linus Torvalds [Thu, 8 Jan 2009 01:21:24 +0000 (17:21 -0800)]
Merge branch 'for-2.6.29' of git://linux-nfs.org/~bfields/linux
* 'for-2.6.29' of git://linux-nfs.org/~bfields/linux: (67 commits)
nfsd: get rid of NFSD_VERSION
nfsd: last_byte_offset
nfsd: delete wrong file comment from nfsd/nfs4xdr.c
nfsd: git rid of nfs4_cb_null_ops declaration
nfsd: dprint each op status in nfsd4_proc_compound
nfsd: add etoosmall to nfserrno
NFSD: FIDs need to take precedence over UUIDs
SUNRPC: The sunrpc server code should not be used by out-of-tree modules
svc: Clean up deferred requests on transport destruction
nfsd: fix double-locks of directory mutex
svc: Move kfree of deferral record to common code
CRED: Fix NFSD regression
NLM: Clean up flow of control in make_socks() function
NLM: Refactor make_socks() function
nfsd: Ensure nfsv4 calls the underlying filesystem on LOCKT
SUNRPC: Ensure the server closes sockets in a timely fashion
NFSD: Add documenting comments for nfsctl interface
NFSD: Replace open-coded integer with macro
NFSD: Fix a handful of coding style issues in write_filehandle()
NFSD: clean up failover sysctl function naming
...
David S. Miller [Thu, 8 Jan 2009 01:15:57 +0000 (17:15 -0800)]
sparc64: Work around branch tracer warning.
As reported by Sam Ravnborg, Gcc-3.4.5 does not handle:
if (get_user() || get_user())
with the new branch tracer enabled.
Just seperate it out into seperate statements for now
so people can get work done.
Signed-off-by: David S. Miller <davem@davemloft.net>
Mauro Carvalho Chehab [Fri, 2 Jan 2009 14:27:44 +0000 (11:27 -0300)]
V4L/DVB (10191a): Update MAINTAINERS entries on media drivers
This patch updates the MAINTAINERS entries for the media drivers.
We are doing a few changes during 2009 to improve patch handling for
drivers/media stuff.
Currently, v4l-dvb-maintainer list at linuxtv.org were used to to be v4l/dvb
driver maintainers ML, in order to keep track of patch merge requests and to
receive bug fixes. This list allows posting for everybody, but, in order to
avoid spam, the user subscribe/unsubscribe at the ML is moderated. Other
development discussions and end-user forums happened on two separated ML (one
for V4L and another for DVB).
At the beginning of 2009, we've created linux-media@vger.kernel.org, meaning to
be the main upstream development mailing list for drivers/media, including V4L
and DVB core and drivers.
The choice for vger.kernel.org were due to the fact that most of upstream lists
are there. Also, its anti-spam filtering rules are better than what we
currently have at linuxtv.org.
For now, both video4linux-list and linux-dvb ML will remain active, but more
focused on end users. It is expected that those lists will gradually be
replaced also by linux-media@vger.kernel.org.
This patch reflect those changes at linux MAINTAINERS file.
Since the development and bug fix discussions will now happen at
linux-media@vger.kernel.org, this patch does the following changes
- replaces v4l-dvb-maintainer ML for the new
linux-media@vger.kernel.org;
- replaces video4linux ML for the new linux-media@vger.kernel.org;
While here, it also:
- Fixes the existing -git tree entries for drivers/media (since the
repository name changed);
- Adds the missing drivers/media -git tree entry on a few maintainers
entries that don't point to a tree.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Mauro Carvalho Chehab [Tue, 6 Jan 2009 19:06:07 +0000 (16:06 -0300)]
V4L/DVB (10190): cx88: Fix some Kbuild troubles
As Randy Dunlap <randy.dunlap@oracle.com> reported, cx88 has some compilation issues:
drivers/built-in.o: In function `cx88_call_i2c_clients':
(.text+0x20af17): undefined reference to `videobuf_dvb_get_frontend'
drivers/built-in.o: In function `cx8802_probe':
cx88-mpeg.c:(.devinit.text+0x268c4): undefined reference to `videobuf_dvb_alloc_frontend'
cx88-mpeg.c:(.devinit.text+0x268ea): undefined reference to `videobuf_dvb_dealloc_frontends'
With those configs:
CONFIG_VIDEO_CX88=y
CONFIG_VIDEO_CX88_BLACKBIRD=y
CONFIG_VIDEO_CX88_DVB=m
CONFIG_DVB_CORE=m
After carefully examining the code, with the current code, several cx88 drivers
(cx8800, cx8802, cx88_dvb and cx88_blackbird) should be compiled as a module,
if one of them is marked as such. Just fixing Kconfig could create a very complex
set of rules. Also, this hides a problem with the current approach where the dvb
functionality weren't confined inside dvb module.
What happens is that:
- cx88-i2c (part of cx8800) has some special rules if DVB;
- cx88-mpeg (cx8802 module) has also part of DVB init code;
- cx88-dvb has the rest of the dvb code;
- cx88-blackbird can be used with cx88-mpeg, having cx88-dvb or not.
So, instead of doing some tricks at Kconfig and wait for a next breakage,
this patch moves the dvb code inside cx88-i2c and cx88-mpeg into cx88-dvb.
Another problem is that cx8802 were being compiled, even without cx88-dvb
and cx88-blackbird modules.
While on this code, let's fix also a reported problem:
http://www.linuxtv.org/pipermail/linux-dvb/2009-January/031225.html
A solution for the issue were proposed here:
http://www.mail-archive.com/linux-media@vger.kernel.org/msg00021.html
Thanks to Randy, Andy, Gregoire and Thomas for helping us to detect
and solve the issues.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Mauro Carvalho Chehab [Tue, 6 Jan 2009 11:33:46 +0000 (08:33 -0300)]
V4L/DVB (10189): dm1105: Fix build with INPUT=m and DVB_DM1105=y
As reported by Randy Dunlap <randy.dunlap@oracle.com>:
With CONFIG_INPUT=m and CONFIG_DVB_DM1105=y:
drivers/built-in.o: In function `input_sync':
dm1105.c:(.text+0x120c33): undefined reference to `input_event'
drivers/built-in.o: In function `dm1105_emit_key':
dm1105.c:(.text+0x120c6c): undefined reference to `input_event'
dm1105.c:(.text+0x120c82): undefined reference to `input_event'
dm1105.c:(.text+0x120cb2): undefined reference to `input_event'
dm1105.c:(.text+0x120cd1): undefined reference to `input_event'
drivers/built-in.o: In function `dm1105_ir_init':
(.devinit.text+0xd8ae): undefined reference to `input_allocate_device'
drivers/built-in.o: In function `dm1105_ir_init':
(.devinit.text+0xd9f6): undefined reference to `input_register_device'
drivers/built-in.o: In function `dm1105_ir_init':
(.devinit.text+0xda09): undefined reference to `input_free_device'
drivers/built-in.o: In function `dm1105_ir_exit':
(.devexit.text+0xcde): undefined reference to `input_unregister_device'
This is due to the lack of a dependency between dm1105 and CONFIG_INPUT
Cc: Igor M. Liplianin <liplianin@me.by>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Julia Lawall [Sat, 3 Jan 2009 19:53:10 +0000 (16:53 -0300)]
V4L/DVB (10185): Use negated usb_endpoint_xfer_control, etc
This patch extends
134179823b3ca9c8b98e0631906459dbb022ff9b by using
usb_endpoint_xfer_control, usb_endpoint_xfer_isoc, usb_endpoint_xfer_bulk,
and usb_endpoint_xfer_int in the negated case as well.
The semantic patch that makes this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)
// <smpl>
@@ struct usb_endpoint_descriptor *epd; @@
- (usb_endpoint_type(epd) != \(USB_ENDPOINT_XFER_CONTROL\|0\))
+ !usb_endpoint_xfer_control(epd)
@@ struct usb_endpoint_descriptor *epd; @@
- (usb_endpoint_type(epd) != \(USB_ENDPOINT_XFER_ISOC\|1\))
+ !usb_endpoint_xfer_isoc(epd)
@@ struct usb_endpoint_descriptor *epd; @@
- (usb_endpoint_type(epd) != \(USB_ENDPOINT_XFER_BULK\|2\))
+ !usb_endpoint_xfer_bulk(epd)
@@ struct usb_endpoint_descriptor *epd; @@
- (usb_endpoint_type(epd) != \(USB_ENDPOINT_XFER_INT\|3\))
+ !usb_endpoint_xfer_int(epd)
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Michael Krufky [Mon, 5 Jan 2009 21:25:04 +0000 (18:25 -0300)]
V4L/DVB (10182): tda8290: fix TDA8290 + TDA18271 initialization
Don't call tda8290_init_tuner unless we have either a TDA8275 or TDA8275A
present. Calling this function will cause a TDA18271 to get sick, so we
should only call it when needed.
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Mauro Carvalho Chehab [Mon, 5 Jan 2009 04:42:38 +0000 (01:42 -0300)]
V4L/DVB (10181): v4l2-device: Fix some sparse warnings
/home/v4l/master/v4l/v4l2-device.c:32:2: warning: Using plain integer as NULL pointer
/home/v4l/master/v4l/v4l2-device.c:64:2: warning: Using plain integer as NULL pointer
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Mauro Carvalho Chehab [Mon, 5 Jan 2009 04:34:20 +0000 (01:34 -0300)]
V4L/DVB (10180): drivers/media: Fix a number of sparse warnings
anysee.c:44:5: warning: symbol 'dvb_usb_anysee_delsys' was not declared. Should it be static?
cx24116.c:378:3: warning: symbol 'CX24116_MODFEC_MODES' was not declared. Should it be static?
stb0899_algo.c:57:5: warning: symbol 'stb0899_get_srate' was not declared. Should it be static?
stb0899_algo.c:766:6: warning: symbol 'Log2Int' was not declared. Should it be static?
stb0899_drv.c:137:20: warning: symbol 'stb0899_quant_tab' was not declared. Should it be static?
stb0899_drv.c:180:20: warning: symbol 'stb0899_est_tab' was not declared. Should it be static?
stb0899_drv.c:220:5: warning: symbol '_stb0899_read_reg' was not declared. Should it be static?
budget-ci.c:1348:23: warning: symbol 'tt3200_stb6100_config' was not declared. Should it be static?
/home/v4l/master/v4l/cx25840-core.c:190:6: warning: symbol 'cx25840_work_handler' was not declared. Should it be static?
/home/v4l/master/v4l/m5602_s5k83a.c:116:6: warning: symbol 's5k83a_dump_registers' was not declared. Should it be static?
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Mauro Carvalho Chehab [Mon, 5 Jan 2009 04:23:50 +0000 (01:23 -0300)]
V4L/DVB (10179): tda8290: Fix two sparse warnings
/home/v4l/master/v4l/tda8290.c:233:7: warning: symbol 'i' shadows an earlier one
/home/v4l/master/v4l/tda8290.c:178:3: warning: symbol 'fm_mode' was not declared. Should it be static?
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Mauro Carvalho Chehab [Mon, 5 Jan 2009 04:19:06 +0000 (01:19 -0300)]
V4L/DVB (10178): dvb_frontend: Fix some sparse warnings due to static symbols
/home/v4l/master/v4l/dvb_frontend.c:838:19: warning: symbol 'dtv_cmds' was not declared. Should it be static?
/home/v4l/master/v4l/dvb_frontend.c:1035:6: warning: symbol 'dtv_property_dump' was not declared. Should it be static?
/home/v4l/master/v4l/dvb_frontend.c:1066:5: warning: symbol 'is_legacy_delivery_system' was not declared. Should it be static?
/home/v4l/master/v4l/dvb_frontend.c:1080:6: warning: symbol 'dtv_property_cache_sync' was not declared. Should it be static?
/home/v4l/master/v4l/dvb_frontend.c:1132:6: warning: symbol 'dtv_property_legacy_params_sync' was not declared. Should it be static?
/home/v4l/master/v4l/dvb_frontend.c:1187:6: warning: symbol 'dtv_property_adv_params_sync' was not declared. Should it be static?
/home/v4l/master/v4l/dvb_frontend.c:1222:6: warning: symbol 'dtv_property_cache_submit' was not declared. Should it be static?
/home/v4l/master/v4l/dvb_frontend.c:1253:5: warning: symbol 'dtv_property_process_get' was not declared. Should it be static?
/home/v4l/master/v4l/dvb_frontend.c:1362:5: warning: symbol 'dtv_property_process_set' was not declared. Should it be static?
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Mauro Carvalho Chehab [Mon, 5 Jan 2009 04:00:40 +0000 (01:00 -0300)]
V4L/DVB (10177): Fix sparse warnings on em28xx
/home/v4l/master/v4l/em28xx-core.c:396:25: warning: symbol 'outputs' was not declared. Should it be static?
/home/v4l/master/v4l/em28xx-input.c:324:6: warning: symbol 'em28xx_ir_start' was not declared. Should it be static?
/home/v4l/master/v4l/em28xx-cards.c:1925:5: warning: symbol 'em28xx_init_dev' was not declared. Should it be static?
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Eric Miao [Fri, 2 Jan 2009 15:16:02 +0000 (12:16 -0300)]
V4L/DVB (10176b): pxa-camera: fix redefinition warnings and missing DMA definitions
1. now pxa_camera.c uses ioremap() for register access, pxa_camera.h is
totally useless. Remove it.
2. <asm/dma.h> does no longer include <mach/dma.h>, include the latter
file explicitly
delete mode 100644 drivers/media/video/pxa_camera.h
Signed-off-by: Eric Miao <eric.miao@marvell.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Guennadi Liakhovetski [Sat, 3 Jan 2009 21:20:04 +0000 (18:20 -0300)]
V4L/DVB (10176a): Switch remaining clear_user_page users over to clear_user_highpage
Not all architectures provide clear_user_page(), but clear_user_highpage()
is available everywhere at least via the compatibility inline function.
Is this the "trivial patch" that's required for these two drivers?
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Harvey Harrison [Wed, 7 Jan 2009 22:31:57 +0000 (14:31 -0800)]
staging: __FUNCTION__ is gcc-specific, use __func__
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Harvey Harrison [Wed, 7 Jan 2009 22:42:41 +0000 (14:42 -0800)]
trivial: replace last usages of __FUNCTION__ in kernel
__FUNCTION__ is gcc-specific, use __func__
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Wed, 7 Jan 2009 23:43:58 +0000 (15:43 -0800)]
Merge branch 'sched-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
sched: fix possible recursive rq->lock
Linus Torvalds [Wed, 7 Jan 2009 23:41:01 +0000 (15:41 -0800)]
Merge branch 'linux-next' of git://git./linux/kernel/git/jbarnes/pci-2.6
* 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: (98 commits)
PCI PM: Put PM callbacks in the order of execution
PCI PM: Run default PM callbacks for all devices using new framework
PCI PM: Register power state of devices during initialization
PCI PM: Call pci_fixup_device from legacy routines
PCI PM: Rearrange code in pci-driver.c
PCI PM: Avoid touching devices behind bridges in unknown state
PCI PM: Move pci_has_legacy_pm_support
PCI PM: Power-manage devices without drivers during suspend-resume
PCI PM: Add suspend counterpart of pci_reenable_device
PCI PM: Fix poweroff and restore callbacks
PCI: Use msleep instead of cpu_relax during ASPM link retraining
PCI: PCIe portdrv: Add kerneldoc comments to remining core funtions
PCI: PCIe portdrv: Rearrange code so that related things are together
PCI: PCIe portdrv: Fix suspend and resume of PCI Express port services
PCI: PCIe portdrv: Add kerneldoc comments to some core functions
x86/PCI: Do not use interrupt links for devices using MSI-X
net: sfc: Use pci_clear_master() to disable bus mastering
PCI: Add pci_clear_master() as opposite of pci_set_master()
PCI hotplug: remove redundant test in cpq hotplug
PCI: pciehp: cleanup register and field definitions
...
Linus Torvalds [Wed, 7 Jan 2009 23:37:24 +0000 (15:37 -0800)]
Merge git://git./linux/kernel/git/gregkh/usb-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (123 commits)
wimax/i2400m: add CREDITS and MAINTAINERS entries
wimax: export linux/wimax.h and linux/wimax/i2400m.h with headers_install
i2400m: Makefile and Kconfig
i2400m/SDIO: TX and RX path backends
i2400m/SDIO: firmware upload backend
i2400m/SDIO: probe/disconnect, dev init/shutdown and reset backends
i2400m/SDIO: header for the SDIO subdriver
i2400m/USB: TX and RX path backends
i2400m/USB: firmware upload backend
i2400m/USB: probe/disconnect, dev init/shutdown and reset backends
i2400m/USB: header for the USB bus driver
i2400m: debugfs controls
i2400m: various functions for device management
i2400m: RX and TX data/control paths
i2400m: firmware loading and bootrom initialization
i2400m: linkage to the networking stack
i2400m: Generic probe/disconnect, reset and message passing
i2400m: host/device procotol and core driver definitions
i2400m: documentation and instructions for usage
wimax: Makefile, Kconfig and docbook linkage for the stack
...
Linus Torvalds [Wed, 7 Jan 2009 23:35:47 +0000 (15:35 -0800)]
Merge git://git./linux/kernel/git/arjan/linux-2.6-async
* git://git.kernel.org/pub/scm/linux/kernel/git/arjan/linux-2.6-async:
async: don't do the initcall stuff post boot
bootchart: improve output based on Dave Jones' feedback
async: make the final inode deletion an asynchronous event
fastboot: Make libata initialization even more async
fastboot: make the libata port scan asynchronous
fastboot: make scsi probes asynchronous
async: Asynchronous function calls to speed up kernel boot
David Miller [Wed, 7 Jan 2009 23:30:05 +0000 (15:30 -0800)]
topology: Fix sparc64 build.
Due to changeset
ba84be2338d3a2b6020d39279335bb06fcd332e1 ("remove
linux/hardirq.h from asm-generic/local.h") the sparc64 build started
failing on drivers/base/topology.c:
drivers/base/topology.c: In function ‘show_physical_package_id’:
drivers/base/topology.c:103: error: implicit declaration of function ‘cpu_data’
drivers/base/topology.c:103: error: request for member ‘proc_id’ in something not a structure or union
drivers/base/topology.c: In function ‘show_core_id’:
drivers/base/topology.c:106: error: request for member ‘core_id’ in something not a structure or union
Adding the obvious fix of including asm/cpudata.h into asm/topology.h on
sparc64 doesn't fix it, in fact it makes things worse because of the
header file dependency chain:
linux/gfp.h --> linux/mmzone.h --> linux/topology.h -->
asm/topology.h --> asm/cpudata.h --> linux/percpu.h -->
linux/slab.h
which results in:
include/linux/slub_def.h: In function ‘kmalloc_large’:
include/linux/slub_def.h:209: error: implicit declaration of function ‘__get_free_pages’
include/linux/slub_def.h:209: error: ‘__GFP_COMP’ undeclared (first use in this function)
include/linux/slub_def.h:209: error: (Each undeclared identifier is reported only once
include/linux/slub_def.h:209: error: for each function it appears in.)
include/linux/slub_def.h:209: warning: cast to pointer from integer of different size
The simplest thing to do is to add yet another one-off hack like parts
of the guilty changeset did, by putting an explicit linux/hardirq.h
include into drivers/base/topology.c
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Benny Halevy [Mon, 15 Dec 2008 17:42:24 +0000 (19:42 +0200)]
nfsd: get rid of NFSD_VERSION
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Benny Halevy [Mon, 15 Dec 2008 17:42:03 +0000 (19:42 +0200)]
nfsd: last_byte_offset
refactor the nfs4 server lock code to use last_byte_offset
to compute the last byte covered by the lock. Check for overflow
so that the last byte is set to NFS4_MAX_UINT64 if offset + len
wraps around.
Also, use NFS4_MAX_UINT64 for ~(u64)0 where appropriate.
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Marc Eshel [Mon, 15 Dec 2008 17:41:31 +0000 (19:41 +0200)]
nfsd: delete wrong file comment from nfsd/nfs4xdr.c
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Benny Halevy [Mon, 15 Dec 2008 17:41:10 +0000 (19:41 +0200)]
nfsd: git rid of nfs4_cb_null_ops declaration
There's no use for nfs4_cb_null_ops's declaration in fs/nfsd/nfs4callback.c
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Benny Halevy [Mon, 15 Dec 2008 17:40:49 +0000 (19:40 +0200)]
nfsd: dprint each op status in nfsd4_proc_compound
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Dean Hildebrand [Mon, 15 Dec 2008 17:40:15 +0000 (19:40 +0200)]
nfsd: add etoosmall to nfserrno
Signed-off-by: Dean Hildebrand <dhildeb@us.ibm.com>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Steve Dickson [Wed, 7 Jan 2009 21:54:30 +0000 (16:54 -0500)]
NFSD: FIDs need to take precedence over UUIDs
When determining the fsid_type in fh_compose(), the setting of the FID
via fsid= export option needs to take precedence over using the UUID
device id.
Signed-off-by: Steve Dickson <steved@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Trond Myklebust [Tue, 23 Dec 2008 21:30:12 +0000 (16:30 -0500)]
SUNRPC: The sunrpc server code should not be used by out-of-tree modules
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Tom Tucker [Mon, 5 Jan 2009 21:21:19 +0000 (15:21 -0600)]
svc: Clean up deferred requests on transport destruction
A race between svc_revisit and svc_delete_xprt can result in
deferred requests holding references on a transport that can never be
recovered because dead transports are not enqueued for subsequent
processing.
Check for XPT_DEAD in revisit to clean up completing deferrals on a dead
transport and sweep a transport's deferred queue to do the same for queued
but unprocessed deferrals.
Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Linus Torvalds [Wed, 7 Jan 2009 21:11:28 +0000 (13:11 -0800)]
Merge git://git./linux/kernel/git/sam/kbuild-fixes
* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes:
kbuild: fix typos (s/bin_shipped/bin.o_shipped/) in Documentation
kbuild: add a symlink to the source for separate objdirs
kconfig: add script to manipulate .config files on the command line
kbuild: reintroduce ALLSOURCE_ARCHS support for tags/cscope
bootchart: improve output based on Dave Jones' feedback
fix modules_install via NFS
qnx: include <linux/types.h> for definitions of __[us]{8,16,32,64} types
Wolfram Sang [Tue, 6 Jan 2009 14:12:27 +0000 (15:12 +0100)]
kbuild: fix typos (s/bin_shipped/bin.o_shipped/) in Documentation
The text always mentions ...bin.o_shipped, just the example makefiles
actually use ...bin_shipped. It was corrected in one place some time
ago, these ones seem to have been forgotten.
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Andi Kleen [Sat, 3 Jan 2009 02:21:42 +0000 (03:21 +0100)]
kbuild: add a symlink to the source for separate objdirs
I have some scripts which need to map back to the source directory
from an objdir. This was so far done by parsing the Makefile,
but the Makefile format changes occasionally and breaks my scripts
then.
To make this more reliable add a "source" symlink back.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Andi Kleen [Sat, 3 Jan 2009 02:21:41 +0000 (03:21 +0100)]
kconfig: add script to manipulate .config files on the command line
I often change single options in .config files. Instead of using
an editor or one of the frontends it's convenient to do this from
the command line. It's also useful to do from automated build scripts
when building different variants from a base config file.
I extracted most of the CONFIG manipulation code from one of my
build scripts into a new shell script scripts/config
The script is not integrated with the normal Kconfig machinery
and doesn't do any checking against Kconfig files, but just manipulates
that text format. This is always done at make time anyways.
I believe this script would be a useful standard addition for scripts/*
Sample usage:
./scripts/config --disable smp
Disable SMP in .config file
./scripts/config --file otherdir/.config --module e1000e
Enable E1000E as module in otherdir/.config
./scripts/config --state smp
y
Check state of config option CONFIG_SMP
After merging into git please make scripts/config executable
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>