David Gibson [Wed, 27 Jul 2005 18:44:21 +0000 (11:44 -0700)]
[PATCH] ppc64: remove another fixed address constraint
Presently the LparMap, one of the structures the kernel shares with the
legacy iSeries hypervisor has a fixed offset address in head.S. This patch
changes this so the LparMap is a normally initialized structure, without
fixed address. This allows us to use macros to compute some of the values
in the structure, which wasn't previously possible because the assembler
always uses signed-% which gets the wrong answers for the computations in
question.
Unfortunately, a gcc bug means that doing this requires another structure
(hvReleaseData) to be initialized in asm instead of C, but on the whole the
result is cleaner than before.
Signed-off-by: David Gibson <dwg@au1.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
PPC64 machines before Power4 need a segment table page allocated for each
CPU. Currently these are allocated statically in a big array in head.S for
all CPUs. The segment tables need to be in the first segment (so
do_stab_bolted doesn't take a recursive fault on the stab itself), but
other than that there are no constraints which require the stabs for the
secondary CPUs to be statically allocated.
This patch allocates segment tables dynamically during boot, using
lmb_alloc() to ensure they are within the first 256M segment. This reduces
the kernel image size by 192k...
Tested on RS64 iSeries, POWER3 pSeries, and POWER5.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Olaf Hering [Wed, 27 Jul 2005 18:44:16 +0000 (11:44 -0700)]
[PATCH] ppc64: hide CONFIG_ADB
This bites me all day when I use our default config for ppc64. We use a
patch to fix the compile errors and provide the CONFIG_MAC_EMUMOUSEBTN
functionality (which is behind CONFIG_INPUT_ADBHID). But Benh doesnt like
it.
Just hide all the ADB parts from via-pmu on ppc64 instead.
drivers/macintosh/adbhid.c: In function `adbhid_init':
drivers/macintosh/adbhid.c:1199: error: `_MACH_chrp' undeclared (first use in this function)
drivers/macintosh/adbhid.c:1199: error: (Each undeclared identifier is reported only once
drivers/macintosh/adbhid.c:1199: error: for each function it appears in.)
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Olaf Hering [Wed, 27 Jul 2005 18:44:15 +0000 (11:44 -0700)]
[PATCH] ppc64: update defconfigs
update defconfig, use new CONFIG_HZ and set it to 100 just for the kicks.
Signed-off-by: Olaf Hering <olh@suse.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Kumar Gala [Wed, 27 Jul 2005 18:44:10 +0000 (11:44 -0700)]
[PATCH] ppc32: Fix typo in setup of 2nd PCI bus on 85xx
Typo bug that was using PCI1 defines instead of PCI2 when setting up the
second PCI bus controller on 85xx based systems. This hasn't been a real
issue since currently the PCI2 sizes are the same as the PCI1 sizes for
currently supported boards.
Thanks to Andrew Klossner @ Xerox for point this out.
Signed-off-by: Kumar Gala <kumar.gala@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Kumar Gala [Wed, 27 Jul 2005 18:44:07 +0000 (11:44 -0700)]
[PATCH] ppc32: Make the UARTs on MPC824x individual platform devices
The UARTs on the MPC824x are unique devices and really shouldn't be thought
of as a DUART. In addition, if both UARTs are in use we need to configure
the part to enable the 2nd UART since the pins for the UARTs are
multiplexed. Adds support to run the 824x Sandpoint with both UARTs if
desired.
Signed-off-by: Matt McClintock <msm@freescale.com> Signed-off-by: Kumar Gala <kumar.gala@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Andy Whitcroft [Wed, 27 Jul 2005 18:44:02 +0000 (11:44 -0700)]
[PATCH] Remove bogus warning in page_alloc.c
Originally __free_pages_bulk used the relative page number within a zone to
define its buddies. This meant that to maintain the "maximally aligned"
requirements (that an allocation of size N will be aligned at least to N
physically) zones had to also be aligned to 1<<MAX_ORDER pages. When
__free_pages_bulk was updated to use the relative page frame numbers of the
free'd pages to pair buddies this released the alignment constraint on the
'left' edge of the zone. This allows _either_ edge of the zone to contain
partial MAX_ORDER sized buddies. These simply never will have matching
buddies and thus will never make it to the 'top' of the pyramid.
The patch below removes a now redundant check ensuring that the mem_map was
aligned to MAX_ORDER.
Signed-off-by: Andy Whitcroft <apw@shadowen.org> Cc: Christoph Lameter <christoph@lameter.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Attached patch removes #ifdef CONFIG_WATCHDOG_NOWAYOUT mess duplicated in
almost every watchdog driver and replaces it with common define in
linux/watchdog.h.
Brian Gerst [Wed, 27 Jul 2005 18:43:57 +0000 (11:43 -0700)]
[PATCH] Fix warning in powernow-k8.c
powernow-k8.c: In function `query_current_values_with_pending_wait':
powernow-k8.c:110: warning: `hi' may be used uninitialized in this function
Signed-off-by: Brian Gerst <bgerst@didntduck.org> Cc: Dave Jones <davej@codemonkey.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
David Ranson [Wed, 27 Jul 2005 18:43:55 +0000 (11:43 -0700)]
[PATCH] serial: MRi MRI-PCIDS1 dual port serial card
Add support for the MRi PCIDS1 dual port serial card. This card is a
little controversial since it is the subject of a PCI vendor/device ID
clash. (See
http://www.ussg.iu.edu/hypermail/linux/kernel/0303.1/0516.html). I have
for now just used the hex ID 0x950a. The divisor was part calculated part
iterated, so may not be exactly correct (but works for me at all settings
between 300 - 115300 bps).
Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Andrew Morton [Wed, 27 Jul 2005 18:43:54 +0000 (11:43 -0700)]
[PATCH] check_user_page_readable() deadlock fix
Fix bug identifued by Richard Purdie <rpurdie@rpsys.net>.
oprofile calls check_user_page_readable() from interrupt context, so we
deadlock over various VFS locks.
But check_user_page_readable() doesn't imply either a read or a write of the
page's contents. Change __follow_page() so that check_user_page_readable()
can tell __follow_page() that we're not accessing the page's contents, and use
that info to avoid the troublesome lock-takings.
Also, make follow_page() inline for the single callsite in memory.c to save a
bit of stack space.
Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Oliver Paukstadt from our test department is testing the xip patches in
Linus' git-tree. He found a problem that shows when reading a file that
contains sparse blocks (holes) on a -o xip mounted ext2 filesystem: the
BUG_ON() in fs/ext2/xip.c:40 triggers where it should not. The problem was
introduced by a cleanup in my previous patch, this patch fixes it.
Pete Zaitcev [Wed, 27 Jul 2005 18:43:51 +0000 (11:43 -0700)]
[PATCH] ub: fix for blank CDs
This patch fixes a microcode lockup in my CD-ROM adapters when a blank CD
is inserted. However, do not try to burn CDs yet! I'm pretty sure that
trying it will end in coasters.
- Fix a few cases where we were unable to resynchronize with replies
for previous commands. The main thing is to keep reading replies
in case of a stall. This is done with the new state CLRRS.
- Since I am forgetting the basic state machine already, document it.
- Move counter increments in the looping path in its own function.
- Fix a harmless buglet in case CSW read fails to submit: do not
override state.
- Implement the Alan Stern's idea for adaptive signature checking.
Signed-off-by: Pete Zaitcev <zaitcev@yahoo.com> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
- fix mixing of declarations and code. The mixing of declarations and
code displays warnings when used against RedHat RHEL4.0 distro (compiler
version is 3.4.3-22.1) and hence I separated them out.
Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
The jsm driver uses a static number of 253. The major number 253 is a
reserved for "LOCAL/EXPERIMENTAL USE" by both char and block devices. So
take advantage of the dynamic allocation of major number by the kernel.
Signed-off-by: V. Ananda Krishnan <mansarov@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This patch adds support for the Olitec ISDN PCI card in the hisax gazel
driver. The gazel driver supports this card, but wasn't aware of its PCI
ids. Users used to modify the PCI ids of a supported card in
include/linux/pci_ids.h and recompile their kernel to get this card
running, as said in most Howtos. This patch makes the hisax gazel driver
recognize the PCI ids of the Olitec ISDN PCI card.
Alan Stern [Wed, 27 Jul 2005 18:43:46 +0000 (11:43 -0700)]
[PATCH] scsi_scan: check return code from scsi_sysfs_add_sdev
Adds a missing check for an error return code from scsi_sysfs_add_sdev.
This resolves entry #4863 in the OSDL bugzilla. Although in that bug
report the failure occurred because of a confusion over scanning vs.
rescanning, in general add_sdev can fail for a number of reasons (the
simplest being insufficient memory) and the caller should cope properly.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Cc: James Bottomley <James.Bottomley@SteelEye.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Ian Kent [Wed, 27 Jul 2005 18:43:45 +0000 (11:43 -0700)]
[PATCH] autofs4: fix infamous "Busy inodes after umount ..." message
If the automount daemon receives a signal which causes it to sumarily
terminate the autofs4 module leaks dentries. The same problem exists with
detached mount requests without the warning.
This patch cleans these dentries at umount.
Signed-off-by: Ian Kent <raven@themaw.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
[PATCH] watchdog: add missing 0x in alim1535_wdt.c
Usually the device IDs are given in hex. This one is a bit strange: it is
without 0x in the first place and used with it some lines later. I suspect
the first one to be the wrong.
Adrian Bunk [Wed, 27 Jul 2005 18:43:41 +0000 (11:43 -0700)]
[PATCH] drivers/pnp/pnpbios/rsparser.c: fix compile error with PCI=n
drivers/pnp/pnpbios/rsparser.c: In function 'pnpbios_parse_allocated_irqresource':
drivers/pnp/pnpbios/rsparser.c:67: error: too many arguments to function 'pcibios_penalize_isa_irq'
Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
reiserfs_new_inode() can call iput() with the xattr lock held. This will
cause a deadlock to occur when reiserfs_delete_xattrs() is called to clean
up.
The following patch releases the lock and reacquires it after the iput.
This is safe because interaction with xattrs is complete, and the relock is
just to balance out the release in the caller.
The locking needs some reworking to be more sane, but that's more intrusive
and I was just looking to fix this bug.
Signed-off-by: Jeff Mahoney <jeffm@suse.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
AS is doing internal msec<->jiffies conversions twice, so the sysfs tunables
which represent time are coming out wrong. The switch from HZ=1000 exposed
this.
Cc: Nick Piggin <nickpiggin@yahoo.com.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This adds the "skas0" parameter to force skas0 operation on SKAS3 host and
shows which operating mode has been selected.
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Olaf Hering [Wed, 27 Jul 2005 18:43:30 +0000 (11:43 -0700)]
[PATCH] uml: add dependency to arch/um/Makefile for parallel builds
the header file must be build before mk_user_constants. Adding it as a
direct dep doesnt work for some reason.
arch/um/os-Linux/util/mk_user_constants.c:2:26: error: user-offsets.h: No such file or directory
arch/um/os-Linux/util/mk_user_constants.c: In function 'main':
arch/um/os-Linux/util/mk_user_constants.c:17: error: '__UM_FRAME_SIZE' undeclared (first use in this function)
arch/um/os-Linux/util/mk_user_constants.c:17: error: (Each undeclared identifier is reported only once
arch/um/os-Linux/util/mk_user_constants.c:17: error: for each function it appears in.)
make[1]: *** [arch/um/os-Linux/util/mk_user_constants] Error 1
Signed-off-by: Olaf Hering <olh@suse.de> Cc: Paolo Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
arch/mips/Kconfig is defining CONFIG_FB as bool and drivers/video/Kconfig
was changed a while ago to define it as tristate. Remove the MIPS
definition.
Tom Rini [Tue, 26 Jul 2005 19:49:53 +0000 (12:49 -0700)]
[PATCH] Change PowerPC MPC8xx maintainer
As Marcelo has been spending a great deal of time working on MPC8xx
systems of late (thanks!) and has more time than I do now for it, I'm
handing this over to him.
Signed-off-by: Tom Rini <trini@kernel.crashing.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
RLIMIT_RTPRIO is supposed to grant non privileged users the right to use
SCHED_FIFO/SCHED_RR scheduling policies with priorites bounded by the
RLIMIT_RTPRIO value via sched_setscheduler(). This is usually used by
audio users.
Unfortunately this is broken in 2.6.13rc3 as you can see in the excerpt
from sched_setscheduler below:
/*
* Allow unprivileged RT tasks to decrease priority:
*/
if (!capable(CAP_SYS_NICE)) {
/* can't change policy */
if (policy != p->policy)
return -EPERM;
After the above unconditional test which causes sched_setscheduler to
fail with no regard to the RLIMIT_RTPRIO value the following check is made:
Thus I do believe that the RLIMIT_RTPRIO value must be taken into
account for the policy check, especially as the RLIMIT_RTPRIO limit is
of no use without this change.
[PATCH] acpi: Don't call acpi_sleep_prepare from acpi_power_off
Now that all of the code paths that call acpi_power_off
have been modified to call either call kernel_power_off
(which calls apci_sleep_prepare by way of acpi_shutdown)
or to call acpi_sleep_prepare directly it is redundant to call
acpi_sleep_prepare from acpi_power_off.
So simplify the code and simply don't call acpi_sleep_prepare.
In addition there is a little error handling done so if we
can't register the acpi class we don't hook pm_power_off.
I think I have done the right thing with the CONFIG_PM define
but I'm not certain. Can this code even be compiled if
CONFIG_PM is false?
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
[PATCH] acpi_power_off: Don't switch to the boot cpu
machine_power_off on i386 and x86_64 now switch to the
boot cpu out of paranoia and because the MP Specification indicates it
is a good idea on reboot, so for those architectures it is a noop.
I can't see anything in the acpi spec that requires you to be on
the boot cpu to power off the system, so this should not be an issue
for ia64. In addition ia64 has the altix a massive multi-node
system where switching to the boot cpu sounds insane as we may
hot removed the boot cpu.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
i386 machine_power_off was disabling the local apic
and all of it's users wanted to be on the boot cpu.
So call machine_shutdown which places us on the boot
cpu and disables the apics. This keeps us in sync
and reduces the number of cases we need to worry about in
the power management code.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Call machine_shutdown() to move to the boot cpu
and disable apics. Both acpi_power_off and
apm_power_off want to move to the boot cpu.
and we are already disabling the local apics
so calling machine_shutdown simply reuses
code.
ia64 doesn't have a special path in power_off
for efi so there is no reason i386 should. If
we really need to call the efi power off path
the efi driver can set pm_power_off like everyone
else.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
[PATCH] pcwd.c: Call kernel_power_off not machine_power_off
The call appears to come from process context so kernel_power_off
should be safe. And acpi_power_off won't necessarily work if you just
call machine_power_off.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
[PATCH] swpsuspend: Have suspend to disk use factors of sys_reboot
The suspend to disk code was a poor copy of the code in
sys_reboot now that we have kernel_power_off, kernel_restart
and kernel_halt use them instead of poorly duplicating them inline.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
[PATCH] 68328serial: sysrq should use emergency_reboot
The 68328serial.c driver has a weird local reimplementation of
magic sysrq. The code is architecture specific enough that calling
machine_restart() is probably ok. But there is no reason not to call
emergency_restart() so do so.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
[PATCH] Fix watchdog drivers to call emergency_reboot()
If a watchdog driver has decided it is time to reboot the system
we know something is wrong and we are in interrupt context
so emergency_reboot() is what we want.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
sysrq calls into the reboot path from an interrupt handler
we can either push the code do into process context and
call kernel_restart and get a clean reboot or we can simply
reboot the machine, and increase our chances of actually
rebooting. emergency_reboot() seems like the closest match
to what we have previously done, and what we want.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
It is not safe to call set_cpus_allowed() in interrupt
context and disabling the apics is complicated code.
So unconditionally skip machine_shutdown in machine_emergency_reboot
on x86_64.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
We only want to shutdown the apics if reboot_force
is not specified. Be we are doing this both
in machine_shutdown which is called unconditionally
and if (!reboot_force). So simply call machine_shutdown
if (!reboot_force). It looks like something
went weird with merging some of the kexec patches for
x86_64, and caused this.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
set_cpus_allowed is not safe in interrupt context
and disabling apics is complicated code so don't
call machine_shutdown on i386 from emergency_restart().
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
[PATCH] Don't export machine_restart, machine_halt, or machine_power_off.
machine_restart, machine_halt and machine_power_off are machine
specific hooks deep into the reboot logic, that modules
have no business messing with. Usually code should be calling
kernel_restart, kernel_halt, kernel_power_off, or
emergency_restart. So don't export machine_restart,
machine_halt, and machine_power_off so we can catch buggy users.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
When the kernel is working well and we want to restart cleanly
kernel_restart is the function to use. But in many instances
the kernel wants to reboot when thing are expected to be working
very badly such as from panic or a software watchdog handler.
This patch adds the function emergency_restart() so that
callers can be clear what semantics they expect when calling
restart. emergency_restart() is expected to be callable
from interrupt context and possibly reliable in even more
trying circumstances.
This is an initial generic implementation for all architectures.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
[PATCH] Make ctrl_alt_del call kernel_restart to get a proper reboot.
It is obvious we wanted to call kernel_restart here
but since we don't have it the code was expanded inline and hasn't
been correct since sometime in 2.4.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Because the factors of sys_reboot don't exist people calling
into the reboot path duplicate the code badly, leading to
inconsistent expectations of code in the reboot path.
This patch should is just code motion.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
projects / mv-sheeva.git / log