Commit Graph

23517 Commits

Author SHA1 Message Date
David Howells
1d9b7d97d6 [PATCH] Keys: Replace duplicate non-updateable keys rather than failing
Cause an attempt to add a duplicate non-updateable key (such as a keyring) to
a keyring to discard the extant copy in favour of the new one rather than
failing with EEXIST:

	# do the test in an empty session
	keyctl session
	# create a new keyring called "a" and attach to session
	keyctl newring a @s
	# create another new keyring called "a" and attach to session,
	# displacing the keyring added by the second command:
	keyctl newring a @s

Without this patch, the third command will fail.

For updateable keys (such as those of "user" type), the update method will
still be called rather than a new key being created.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:22:50 -08:00
David Howells
3dccff8dc0 [PATCH] Keys: Fix key quota management on key allocation
Make key quota detection generate an error if either quota is exceeded rather
than only if both quotas are exceeded.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:22:50 -08:00
Chen, Kenneth W
a7d06ca7b6 [PATCH] x86: HUGETLBFS and DEBUG_PAGEALLOC are incompatible
DEBUG_PAGEALLOC is not compatible with hugetlb page support.  That debug
option turns off PSE.  Once it is turned off in CR4, the cpu will ignore
pse bit in the pmd and causing infinite page-not- present faults.

So disable DEBUG_PAGEALLOC if the user selected hugetlbfs.

Signed-off-by: Ken Chen <kenneth.w.chen@intel.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:22:50 -08:00
Ashok Raj
d3f4aaa3d7 [PATCH] x86: make CONFIG_HOTPLUG_CPU depend on !X86_PC
Make CONFIG_HOTPLUG_CPU depend on !X86_PC, so we need to turn on either
CONFIG_GENERICARCH, CONFIG_BIGSMP or any other subarch except X86_PC when
CONFIG_HOTPLUG_CPU=y

With 2.6.15+ kernels when CONFIG_HOTPLUG_CPU is turned on we switch to
bigsmp mode for sending IPI's and ioapic configurations that caused the
following error message.

>> More than 8 CPUs detected and CONFIG_X86_PC cannot handle it.
>> Use CONFIG_X86_GENERICARCH or CONFIG_X86_BIGSMP.

Originally bigsmp was added just to handle >8 cpus, but now with hotplug
cpu support we need to use bigsmp mode (why?  see below), that cause the
above error message even if there were less than 8 cpus in the system.

The message is bogus, but we are cannot use logical flat mode due to issues
with broadcast IPI can confuse a CPU just comming up.  We use flat physical
mode just like x86_64 case.  More details on why bigsmp now uses flat
physical mode (vs.  cluster mode) in following link.

http://marc.theaimsgroup.com/?l=linux-kernel&m=113261865814107&w=2

Signed-off-by: Ashok Raj <ashok.raj@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:22:50 -08:00
Anton Blanchard
f5335c0f1b [PATCH] quieten zone_pcp_init
In zone_pcp_init we print out all zones even if they are empty:

On node 0 totalpages: 245760
  DMA zone: 245760 pages, LIFO batch:31
  DMA32 zone: 0 pages, LIFO batch:0
  Normal zone: 0 pages, LIFO batch:0
  HighMem zone: 0 pages, LIFO batch:0

To conserve dmesg space why not print only the non zero zones.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:22:50 -08:00
Christoph Lameter
d784124cfe [PATCH] mm: make page migration dependent on swap and NUMA
The page migration code could function without NUMA but we currently have
no users for the non-NUMA case.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Cc: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:22:50 -08:00
Christoph Lameter
0718dc2a82 [PATCH] slab: fix memory leak in alloc_kmemlist
We have had this memory leak for a while now.  The situation is complicated
by the use of alloc_kmemlist() as a function to resize various caches by
do_tune_cpucache().

What we do here is first of all make sure that we deallocate properly in
the loop over all the nodes.

If we are just resizing caches then we can simply return with -ENOMEM if an
allocation fails.

If the cache is new then we need to rollback and remove all earlier
allocations.

We detect that a cache is new by checking if the link to the global cache
chain has been setup.  This is a bit hackish ....

(also fix up too overlong lines that I added in the last patch...)

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Cc: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:22:50 -08:00
Christoph Lameter
cafeb02e09 [PATCH] alloc_kmemlist: Some cleanup in preparation for a real memory leak fix
Inspired by Jesper Juhl's patch from today

1. Get rid of err
	We do not set it to anything else but zero.

2. Drop the CONFIG_NUMA stuff.
	There are definitions for alloc_alien_cache and free_alien_cache()
	that do the right thing for the non NUMA case.

3. Better naming of variables.

4. Remove redundant cachep->nodelists[node] expressions.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:22:50 -08:00
Christoph Lameter
e00946fe23 [PATCH] slab: Bypass free lists for __drain_alien_cache()
__drain_alien_cache() currently drains objects by freeing them to the
(remote) freelists of the original node.  However, each node also has a
shared list containing objects to be used on any processor of that node.
We can avoid a number of remote node accesses by copying the pointers to
the free objects directly into the remote shared array.

And while we are at it: Skip alien draining if the alien cache spinlock is
already taken.

Kiran reported that this is a performance benefit.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:22:49 -08:00
Christoph Lameter
3ded175a4b [PATCH] slab: add transfer_objects() function
slabr_objects() can be used to transfer objects between various object
caches of the slab allocator.  It is currently only used during
__cache_alloc() to retrieve elements from the shared array.  We will be
using it soon to transfer elements from the alien caches to the remote
shared array.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:22:49 -08:00
Pekka Enberg
c5e3b83e97 [PATCH] mm: use kmem_cache_zalloc
Convert mm/ to use the new kmem_cache_zalloc allocator.

Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:22:49 -08:00
Pekka Enberg
40c07ae8da [PATCH] slab: optimize constant-size kzalloc calls
As suggested by Eric Dumazet, optimize kzalloc() calls that pass a
compile-time constant size.  Please note that the patch increases kernel
text slightly (~200 bytes for defconfig on x86).

Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:22:49 -08:00
Pekka Enberg
a8c0f9a41f [PATCH] slab: introduce kmem_cache_zalloc allocator
Introduce a memory-zeroing variant of kmem_cache_alloc.  The allocator
already exits in XFS and there are potential users for it so this patch
makes the allocator available for the general public.

Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:22:49 -08:00
Al Viro
871751e25d [PATCH] slab: implement /proc/slab_allocators
Implement /proc/slab_allocators.   It produces output like:

idr_layer_cache: 80 idr_pre_get+0x33/0x4e
buffer_head: 2555 alloc_buffer_head+0x20/0x75
mm_struct: 9 mm_alloc+0x1e/0x42
mm_struct: 20 dup_mm+0x36/0x370
vm_area_struct: 384 dup_mm+0x18f/0x370
vm_area_struct: 151 do_mmap_pgoff+0x2e0/0x7c3
vm_area_struct: 1 split_vma+0x5a/0x10e
vm_area_struct: 11 do_brk+0x206/0x2e2
vm_area_struct: 2 copy_vma+0xda/0x142
vm_area_struct: 9 setup_arg_pages+0x99/0x214
fs_cache: 8 copy_fs_struct+0x21/0x133
fs_cache: 29 copy_process+0xf38/0x10e3
files_cache: 30 alloc_files+0x1b/0xcf
signal_cache: 81 copy_process+0xbaa/0x10e3
sighand_cache: 77 copy_process+0xe65/0x10e3
sighand_cache: 1 de_thread+0x4d/0x5f8
anon_vma: 241 anon_vma_prepare+0xd9/0xf3
size-2048: 1 add_sect_attrs+0x5f/0x145
size-2048: 2 journal_init_revoke+0x99/0x302
size-2048: 2 journal_init_revoke+0x137/0x302
size-2048: 2 journal_init_inode+0xf9/0x1c4

Cc: Manfred Spraul <manfred@colorfullife.com>
Cc: Alexander Nyberg <alexn@telia.com>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Christoph Lameter <clameter@engr.sgi.com>
Cc: Ravikiran Thirumalai <kiran@scalex86.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
DESC
slab-leaks3-locking-fix
EDESC
From: Andrew Morton <akpm@osdl.org>

Update for slab-remove-cachep-spinlock.patch

Cc: Al Viro <viro@ftp.linux.org.uk>
Cc: Manfred Spraul <manfred@colorfullife.com>
Cc: Alexander Nyberg <alexn@telia.com>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Christoph Lameter <clameter@engr.sgi.com>
Cc: Ravikiran Thirumalai <kiran@scalex86.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:22:49 -08:00
Alessandro Zummo
f52ac8fec8 [PATCH] cirrus ep93xx watchdog driver
Add a driver for the on-chip watchdog on the cirrus ep93xx series of ARM
CPUs.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Cc: Wim Van Sebroeck <wim@iguana.be>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:22:49 -08:00
David Howells
214fda1f6e [PATCH] Optimise d_find_alias()
The attached patch optimises d_find_alias() to only take the spinlock if
there's anything in the the inode's alias list.  If there isn't, it returns
NULL immediately.

With respect to the superblock sharing patch, this should reduce by one the
number of times the dcache_lock is taken by nfs_lookup() for ordinary
directory lookups.

Only in the case where there's already a dentry for particular directory inode
(such as might happen when another mountpoint is rooted at that dentry) will
the lock then be taken the extra time.

Signed-off-by: David Howells <dhowells@redhat.com>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:22:49 -08:00
Thomas Gleixner
7d99b7d634 [PATCH] Validate and sanitze itimer timeval from userspace
According to the specification the timevals must be validated and an
errorcode -EINVAL returned in case the timevals are not in canonical form.
This check was never done in Linux.

The pre 2.6.16 code converted invalid timevals silently.  Negative timeouts
were converted by the timeval_to_jiffies conversion to the maximum timeout.

hrtimers and the ktime_t operations expect timevals in canonical form.
Otherwise random results might happen on 32 bits machines due to the
optimized ktime_add/sub operations.  Negative timeouts are treated as
already expired.  This might break applications which work on pre 2.6.16.

To prevent random behaviour and API breakage the timevals are checked and
invalid timevals sanitized in a simliar way as the pre 2.6.16 code did.

Invalid timevals are reported with a per boot limited number of kernel
messages so applications which use this misfeature can be corrected.

After a grace period of one year the sanitizing should be replaced by a
correct validation check.  This is also documented in
Documentation/feature-removal-schedule.txt

The validation and sanitizing is done inside do_setitimer so all callers
(sys_setitimer, compat_sys_setitimer, osf_setitimer) are catched.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:22:49 -08:00
Thomas Gleixner
c08b8a4910 [PATCH] sys_alarm() unsigned signed conversion fixup
alarm() calls the kernel with an unsigend int timeout in seconds.  The
value is stored in the tv_sec field of a struct timeval to setup the
itimer.  The tv_sec field of struct timeval is of type long, which causes
the tv_sec value to be negative on 32 bit machines if seconds > INT_MAX.

Before the hrtimer merge (pre 2.6.16) such a negative value was converted
to the maximum jiffies timeout by the timeval_to_jiffies conversion.  It's
not clear whether this was intended or just happened to be done by the
timeval_to_jiffies code.

hrtimers expect a timeval in canonical form and treat a negative timeout as
already expired.  This breaks the legitimate usage of alarm() with a
timeout value > INT_MAX seconds.

For 32 bit machines it is therefor necessary to limit the internal seconds
value to avoid API breakage.  Instead of doing this in all implementations
of sys_alarm the duplicated sys_alarm code is moved into a common function
in itimer.c

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:22:48 -08:00
Andrew Morton
185ae6d7a3 [PATCH] timer irq driven soft watchdog fix
I seem to have lost this hunk in yesterday's patch.  It brings the
coming-online CPU's softlockup timer up to date so we don't get false-positive
tripups during CPU hot-add.

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:22:48 -08:00
Andrey Panin
bc83455bc8 [PATCH] fix DMI onboard device discovery
Attached patch fixes invalid pointer arithmetic in DMI code to make onboard
device discovery working again.

akpm: bug has been present since dmi_find_device() was added in 2.6.14.
Affects ipmi only (I think) - the symptoms weren't described.

akpm: changed to use pointer arithmetic rather than open-coded sizeof.

Signed-off-by: Andrey Panin <pazke@donpac.ru>
Cc: Corey Minyard <minyard@acm.org>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:22:48 -08:00
Horms
b2fd16b4ff [PATCH] net: ne2k.c won't compile if pci_clone_list is const
net: ne2k.c won't compile if pci_clone_list is const

f71e130966 which (amongst other things)
made pci_clone_list in ne2k-pci.c const causes the following compile error.
This patch reverses that portion of that changeset

drivers/net/ne2k-pci.c:123: error: pci_clone_list causes a section type
conflict

~/ gcc --version
gcc (GCC) 4.0.3 (Debian 4.0.3-1)
~/ dpkg gcc-4.0 | grep Version
Version: 4.0.3-1

Signed-Off-By: Horms <horms@verge.net.au

 ne2k-pci.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

cee0890cc97247b6a9decd94f5dc0719ac8f0b1b

Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-03-24 12:10:55 -05:00
Andrew Victor
d4b7780ea1 [PATCH] AT91RM9200 Ethernet driver
This patch adds support for the Ethernet controller integrated in the
Atmel AT91RM9200 SoC processor.

Changes since the previous submission (01/02/2006) are:
  - Make use of the clk.h clock infrastructure.
  - The multicast hash function is not crc32. [Patch by Pedro Perez]

Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-03-24 12:10:55 -05:00
Linus Torvalds
e93252faca Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev
* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev:
  [PATCH] libata: Remove dependence on host_set->dev for SAS
  [PATCH] libata: ata_scsi_ioctl cleanup
  [PATCH] libata: ata_scsi_queuecmd cleanup
  [libata] export ata_dev_pair; trim trailing whitespace
  [PATCH] libata: add ata_dev_pair helper
  [PATCH] Make libata not powerdown drivers on PM_EVENT_FREEZE.
  [PATCH] libata: make ata_set_mode() responsible for failure handling
  [PATCH] libata: use ata_dev_disable() in ata_bus_probe()
  [PATCH] libata: implement ata_dev_disable()
  [PATCH] libata: check if port is disabled after internal command
  [PATCH] libata: make per-dev transfer mode limits per-dev
  [PATCH] libata: add per-dev pio/mwdma/udma_mask
  [PATCH] libata: implement ata_unpack_xfermask()
  [libata] Move some bmdma-specific code to libata-bmdma.c
  [libata sata_uli] kill scr_addr abuse
  [libata sata_nv] eliminate duplicate codepaths with iomap
  [libata sata_nv] cleanups: convert #defines to enums; remove in-file history
  [libata sata_sil24] cleanups: use pci_iomap(), kzalloc()
2006-03-24 08:19:51 -08:00
Andrew Morton
f125b56113 [PATCH] fix build error if CONFIG_SYSFS=n
uevent_seqnum and uevent_helper are only defined if CONFIG_HOTPLUG=y,
CONFIG_NET=n.

(I stole this back from Greg's tree - it makes allnoconfig work).

Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24 07:33:31 -08:00
Davi Arnaut
0cb409d98e [PATCH] strndup_user: convert keyctl
Copies user-space string with strndup_user() and moves the type string
duplication code to a function (thus fixing a wrong check on the length of the
type.)

Signed-off-by: Davi Arnaut <davi.arnaut@gmail.com>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24 07:33:31 -08:00
Davi Arnaut
24277dda3a [PATCH] strndup_user: convert module
Change hand-coded userspace string copying to strndup_user.

Signed-off-by: Davi Arnaut <davi.arnaut@gmail.com>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24 07:33:31 -08:00
Davi Arnaut
96840aa00a [PATCH] strndup_user()
This patch series creates a strndup_user() function to easy copying C strings
from userspace.  Also we avoid common pitfalls like userspace modifying the
final \0 after the strlen_user().

Signed-off-by: Davi Arnaut <davi.arnaut@gmail.com>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24 07:33:31 -08:00
Ingo Molnar
6687a97d40 [PATCH] timer-irq-driven soft-watchdog, cleanups
Make the softlockup detector purely timer-interrupt driven, removing
softirq-context (timer) dependencies.  This means that if the softlockup
watchdog triggers, it has truly observed a longer than 10 seconds
scheduling delay of a SCHED_FIFO prio 99 task.

(the patch also turns off the softlockup detector during the initial bootup
phase and does small style fixes)

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24 07:33:30 -08:00
Sergey Vlasov
6a4d11c2ab [PATCH] Fix module refcount leak in __set_personality()
If the change of personality does not lead to change of exec domain,
__set_personality() returned without releasing the module reference
acquired by lookup_exec_domain().

Signed-off-by: Sergey Vlasov <vsu@altlinux.ru>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24 07:33:30 -08:00
Glauber de Oliveira Costa
b5a7c4f583 [PATCH] ext3: Properly report backup block present in a group
In filesystems with the meta block group flag on, ext3_bg_num_gdb() fails
to report the correct number of blocks used to store the group descriptor
backups in a given group.  It happens because meta_bg follows a different
logic from the original ext3 backup placement in groups multiples of 3, 5
and 7.

Signed-off-by: Glauber de Oliveira Costa <glommer@br.ibm.com>
Cc: Andreas Dilger <adilger@clusterfs.com>
Cc: "Stephen C. Tweedie" <sct@redhat.com>
Cc: Alex Tomas <alex@clusterfs.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24 07:33:30 -08:00
Andrew Morton
d3561f78fd [PATCH] RLIMIT_CPU: document wrong return value
Document the fact that setrlimit(RLIMIT_CPU) doesn't return error codes when
it should.  I don't think we can fix this without a 2.7.x..

Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Ulrich Weigand <uweigand@de.ibm.com>
Cc: Cliff Wickman <cpw@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24 07:33:30 -08:00
Andrew Morton
e0661111e5 [PATCH] RLIMIT_CPU: fix handling of a zero limit
At present the kernel doesn't honour an attempt to set RLIMIT_CPU to zero
seconds.  But the spec says it should, and that's what 2.4.x does.

Fixing this for real would involve some complexity (such as adding a new
it-has-been-set flag to the task_struct, and testing that everwhere, instead
of overloading the value of it_prof_expires).

Given that a 2.4 kernel won't actually send the signal until one second has
expired anyway, let's just handle this case by treating the caller's
zero-seconds as one second.

Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Ulrich Weigand <uweigand@de.ibm.com>
Cc: Cliff Wickman <cpw@sgi.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24 07:33:30 -08:00
Andrew Morton
ec9e16bacd [PATCH] sys_setrlimit() cleanup
- Whitespace cleanups

- Make that expression comprehensible.

There's a potential logic change here: we do the "is it_prof_expires equal to
zero" test after converting it to seconds, rather than doing the comparison
between raw cputime_t's.

But given that it's in units of seconds anyway, that shouldn't change
anything.

Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Ulrich Weigand <uweigand@de.ibm.com>
Cc: Cliff Wickman <cpw@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24 07:33:30 -08:00
Christoph Hellwig
de62a97ef5 [PATCH] deprecate the tasklist_lock export
Drivers have no business looking at the task list and thus using this lock.
 The only possibly modular users left are:

 arch/ia64/kernel/mca.c
 drivers/edac/edac_mc.c
 fs/binfmt_elf.c

which I'll send out fixes for soon.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24 07:33:29 -08:00
Alan Cox
554b7c801e [PATCH] Yet more rio cleaning (2 of 2)
- Remove more unused headers
- Remove various typedefs
- Correct type of PaddrP (physical addresses should be ulong)
- Kill use of bcopy
- More printk cleanups
- Kill true/false
- Clean up direct access to pci BARs

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24 07:33:29 -08:00
Alan Cox
57c2d60e1e [PATCH] Yet more rio cleaning (1 of 2)
- Remove more unused headers
- Remove various typedefs
- Correct type of PaddrP (physical addresses should be ulong)
- Kill use of bcopy
- More printk cleanups
- Kill true/false
- Clean up direct access to pci BARs

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24 07:33:29 -08:00
Alan Cox
db3185242a [PATCH] rio driver rework continued #5
Final polish.  There is no more save_flags/cli type locking left.  We also no
longer use the pcicopy function and file so they can go.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24 07:33:29 -08:00
Alan Cox
3d336aa257 [PATCH] rio driver rework continued #4
Third large chunk of code cleanup.  The split between this and #3 and #4 is
fairly arbitary and due to the message length limit on the list.  These
patches continue the process of ripping out macros and typedefs while cleaning
up lots of 32bit assumptions.  Several inlines for compatibility also get
removed and that causes a lot of noise.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24 07:33:29 -08:00
Alan Cox
00d83a54aa [PATCH] rio driver rework continued #3
Second large chunk of code cleanup.  The split between this and #3 and #4 is
fairly arbitary and due to the message length limit on the list.  These
patches continue the process of ripping out macros and typedefs while cleaning
up lots of 32bit assumptions.  Several inlines for compatibility also get
removed and that causes a lot of noise.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24 07:33:29 -08:00
Alan Cox
e2b3afd676 [PATCH] rio driver rework continued #2
First large chunk of code cleanup.  The split between this and #3 and #4 is
fairly arbitary and due to the message length limit on the list.  These
patches continue the process of ripping out macros and typedefs while cleaning
up lots of 32bit assumptions.  Several inlines for compatibility also get
removed and that causes a lot of noise.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24 07:33:29 -08:00
Alan Cox
27c6e526f3 [PATCH] rio driver rework continued #1
More header cleanups, strip out typedefs and remove cruft.  There are a lot of
magic macros that can go and also a great deal of abuse of volatile that is
not needed any more as this patch set cleans up the misuse of pointer access
to ISA and PCI space.

It now builds cleanly on 64bit, although there is more work left to do

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24 07:33:29 -08:00
Alan Cox
b6c6b6021e [PATCH] rioboot: post-Lindent
After the indent we can now clean up unused code, and fix all myriad cases
that don't use readb/writeb properly.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24 07:33:28 -08:00
Alan Cox
3b8e3f1e44 [PATCH] rioboot: lindent
This is the result of indent -kr -i8 -bri0 -l255

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24 07:33:28 -08:00
Alan Cox
74769abfcb [PATCH] rio: more header cleanup
Strip some of the typedef mess out Remove a small subset of unused defines
and the like.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24 07:33:28 -08:00
Takashi Iwai
10e705f83c [PATCH] Fix "value computed not used" warnings
Fixes for annoying gcc-4.1 compile warnings "value computed not used".
Simply cast to void.

(akpm: Linus will go ballistic...)

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24 07:33:28 -08:00
Christoph Hellwig
ac515898f3 [PATCH] deprecate the kernel_thread export
Announce that the kernel_thread export will be removed in half a year,
after all it's users have been converted to the kthread_ API, which I plan
to do over the next month.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24 07:33:28 -08:00
Kumar Gala
208a08f7cc [PATCH] ide: Allow IDE interface to specify its not capable of 32-bit operations
In some embedded systems the IDE hardware interface may only support 16-bit
or smaller accesses.  Allow the interface to specify if this is the case
and don't allow the drive or user to override the setting.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24 07:33:28 -08:00
Adrian Bunk
f751d50f6d [PATCH] show MCP menu only on ARCH_SA1100
On architectures like i386, the "Multimedia Capabilities Port drivers" menu is
visible, but it can't be visited since it contains nothing usable for
!ARCH_SA1100.

This patch therefore shows this menu only on ARCH_SA1100.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24 07:33:28 -08:00
Kyle McMartin
82d821ddca [PATCH] Conditionalize compat_sys_newfstatat
If we don't want sys_newfstatat because __ARCH_WANT_STAT64 is defined, then
we certainly don't want compat_sys_newfstatat either.

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24 07:33:27 -08:00
John Z. Bohach
2ea1c5392c [PATCH] console_setup() depends (wrongly?) on CONFIG_PRINTK
It appears that console_setup() code only gets compiled into the kernel if
CONFIG_PRINTK is enabled.  One detrimental side-effect of this is that
serial8250_console_setup() never gets invoked when CONFIG_PRINTK is not
set, resulting in baud rate not being read/parsed from command line (i.e.
console=ttyS0,115200n8 is ignored, at least the baud rate part...)

Attached patch moves console_setup() code from inside

#ifdef CONFIG_PRINTK

to outside (in printk.c), removing dependence on said config. option.

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24 07:33:27 -08:00