07 Jan, 2006
40 commits
-
There are some more places where the use of cputime_t instead of an integer
type and the associated macros is necessary for the virtual cputime accounting
on s390. Affected are the s390 specific appldata code and BSD process
accounting.Signed-off-by: Martin Schwidefsky
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Martin Schwidefsky
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Check return code of do_sigaltstack and force a SIGSEGV if it is -EFAULT.
Signed-off-by: Martin Schwidefsky
Signed-off-by: Cedric Le Goater
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Convert __access_ok to an inline C function and change __get_user primitive to
avoid uaccess compiler warnings.Signed-off-by: Martin Schwidefsky
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Hugh Dickins
Fix the broken atomic_cmpxchg primitive. Add atomic_sub_and_test,
atomic64_sub_return, atomic64_sub_and_test, atomic64_cmpxchg,
atomic64_add_unless and atomic64_inc_not_zero. Replace old style
atomic_compare_and_swap by atomic_cmpxchg. Shorten the whole header by
defining most primitives with the two inline functions atomic_add_return and
atomic_sub_return.In addition this patch contains the s390 related fixes of Hugh's "mm: fill
arch atomic64 gaps" patch.Signed-off-by: Martin Schwidefsky
Signed-off-by: Hugh Dickins
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Free the network IRQ when closing down the network devices at shutdown.
Delete the device from the opened devices list on close.These prevent an -EBADF when later disabling SIGIO on all extant descriptors
and a complaint from free_irq about freeing the IRQ twice.Signed-off-by: Jeff Dike
Cc: Paolo 'Blaisorblade' Giarrusso
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Fix up some bogus spacing in the mconsole driver. Also delete the
emacs formatting comment at the end.Signed-off-by: Jeff Dike
Cc: Paolo 'Blaisorblade' Giarrusso
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Pass sysrq output back to the mconsole client using the mechanism
introduced for stack output.Signed-off-by: Jeff Dike
Cc: Paolo 'Blaisorblade' Giarrusso
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The stack command now sends the printk output back to the mconsole client.
This is done by registering a special console for the mconsole driver. This
receives all printk output. Normally, it is ignored, but when a stack command
is issued, any printk output will be sent back to the client.This will capture any printk output, whether it is stack output or not, since
we can't tell the difference.Signed-off-by: Jeff Dike
Cc: Paolo 'Blaisorblade' Giarrusso
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This is needed for the console output patch, since we have a possibly
non-NULL-terminated string there. So, the new interface takes a string and a
length, and the old interface calls strlen on its string and calls the new
interface with the length.There's also a bit of whitespace cleanup.
Signed-off-by: Jeff Dike
Cc: Paolo 'Blaisorblade' Giarrusso
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Produce a compile-time error if both MODE_SKAS and MODE_TT are disabled.
Signed-off-by: Jeff Dike
Cc: Paolo 'Blaisorblade' Giarrusso
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Code cleanup - unregister_winch and winch_cleanup had some duplicate code.
This is now abstracted out into free_winch.Signed-off-by: Jeff Dike
Cc: Paolo 'Blaisorblade' Giarrusso
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch cleans up the umid code:
- The only_if_set argument to get_umid is gone.
- get_umid returns an empty string rather than NULL if there is no umid.
- umid_is_random is gone since its users went away.
- Some printfs were turned into printks because the code runs late enough
that printk is working.- Error paths were cleaned up.
- Some functions now return an error and let the caller print the error
message rather than printing it themselves. This eliminates the practice of
passing a pointer to printf or printk in, depending on where in the boot
process we are.- Major tidying of not_dead_yet - mostly error path cleanup, plus a comment
explaining why it doesn't react to errors the way you might expect.- Calls to os_* interfaces that were moved under os are changed back to
their native libc forms.- snprintf, strlcpy, and their bounds-checking friends are used more often,
replacing by-hand bounds checking in some places.Signed-off-by: Jeff Dike
Cc: Paolo 'Blaisorblade' Giarrusso
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
I reworked Gennady's umid OS abstraction patch because the code shouldn't
be moved entirely to os. As it turns out, I moved most of it anyway. This
patch is the minimal one needed to move the code and have it work.
It turns out that the concept of the umid is OS-independent, but
almost everything else about the implementation is OS-dependent.This is code movement without cleanup - a follow-on patch tidies
everything up without shuffling code around.Signed-off-by: Jeff Dike
Cc: Paolo 'Blaisorblade' Giarrusso
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch adds support for throttling and unthrottling input when the tty
driver can't handle it.Signed-off-by: Jeff Dike
Cc: Paolo 'Blaisorblade' Giarrusso
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
When the tty flip_buf is full, it's a good idea to delay the input processing
for a jiffy, rather than just scheduling the tasklet immediately.Signed-off-by: Jeff Dike
Cc: Paolo 'Blaisorblade' Giarrusso
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch simplifies the opening and closing of host console devices and the
registration and deregistration of IRQs. The intent is to make it obvious
that an IRQ can't exist without an open file descriptor.chan_enable will now open the channel, and when both opening and IRQ
registration are desired, this should be used. Opening only is done for the
initial console, so that interface still needs to exist.The free_irqs_later interface is now gone. It was intended to avoid freeing
an IRQ while it was being processed. It did this, but it didn't eliminate the
possiblity of free_irq being called from an interrupt, which is bad. In its
place is a list of irqs to be freed, which is processed by the signal handler
just before exiting. close_one_chan now disables irqs.When a host device disappears, it is just closed, and that disables IRQs.
The device id registered with the IRQ is now the chan structure, not the tty.
This is because the interrupt arrives on a descriptor associated with the
channel. This caused equivalent changes in the arguments to line_timer_cb.
line_disable is gone since it is not used any more.The count field in the line structure is gone. tty->count is used instead.
The complicated logic in sigio_handler with freeing IRQs when necessary and
making sure its idea of the next irq is correct is now much simpler. The irq
list can't be rearranged underneath it, so it is now a simple list walk.Signed-off-by: Jeff Dike
Cc: Paolo 'Blaisorblade' Giarrusso
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch changes when console devices are configured in order to prepare the
ground for the next patch.parse_chan_pair is now done earlier, when initcalls are run, rather than when
the device is opened.When a host device disappears, the channel list is closed, but not freed.
This is required by the previous change. line_config now takes the options
structure as an argument, and line_open doesn't.Signed-off-by: Jeff Dike
Cc: Paolo 'Blaisorblade' Giarrusso
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
line_setup is changed to return the device which it set up, rather than just
success or failure. This will be important in the line-config patch.Signed-off-by: Jeff Dike
Cc: Paolo 'Blaisorblade' Giarrusso
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Some structure fields were being dynamically initialized when they could be
initialized at compile-time instead. This also makes some declarations static
(in the C sense).Signed-off-by: Jeff Dike
Cc: Paolo 'Blaisorblade' Giarrusso
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
A bit of restructuring which eliminates the all_allowed argument (which is
mconsole-specific) to line_setup. That logic is moved to the mconsole
callback.Signed-off-by: Jeff Dike
Cc: Paolo 'Blaisorblade' Giarrusso
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This removes a structure field which turned out to be pointless, and
references to it.Signed-off-by: Jeff Dike
Cc: Paolo 'Blaisorblade' Giarrusso
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch replaces instances of "sizeof(foo)/sizeof(foo[0])" with
ARRAY_SIZE(foo), which expands to the same thing.Signed-off-by: Jeff Dike
Cc: Paolo 'Blaisorblade' Giarrusso
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch makes a bunch of non-functional changes -
return(foo); becomes return foo;
some statements are broken across lines for readability
some trailing whitespace is cleaned up
open_one_chan took four arguments, three of which could be
deduced from the first. Accordingly, they were eliminated.
some examples of "} else {" had a newline added
some whitespace cleanup in the indentation
lines_init got some control flow cleanup
some long lines were broken
removed another emacs-specific C formatting commentSigned-off-by: Jeff Dike
Cc: Paolo 'Blaisorblade' Giarrusso
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
There are a few functions which are declared to return something, but don't.
These are actually infinite loops which are forced to be declared as non-void.
This makes them all return 0.Signed-off-by: Jeff Dike
Cc: Paolo 'Blaisorblade' Giarrusso
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
There were a bunch of calls to uml_strdup dating from before kstrdup was
introduced. This changes those calls. It doesn't eliminate the definition
since there is still a couple of calls in userspace code (which should
probably call the libc strdup).Signed-off-by: Jeff Dike
Cc: Paolo 'Blaisorblade' Giarrusso
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Doesn't make much sense and unused.
Signed-off-by: Alexey Dobriyan
Signed-off-by: Adrian Bunk
Cc: Mikael Starvik
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
mach_enable_irq/mach_disable_irq are never actually set, so let's remove
them.Signed-off-by: Christoph Hellwig
Cc: Greg Ungerer
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch removes unnecessary struct icu_data_t definitions of
arch/m32r/kernel/setup_*.c.Signed-off-by: Hayato Fujiwara
Signed-off-by: Hirokazu Takata
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch fixes cache memory parameter setting for the M32104 target. So
far, its performance seemed to have been degraded due to incorrect cache
parameter setting.* arch/m32r/boot/setup.S: Set SFR(Special Fuction Registers) region
to be non-cachable explicitly.
* arch/m32r/mm/cache.c: Fix cache flushing routines not to switch off
the M32104 cache.Signed-off-by: Hayato Fujiwara
Signed-off-by: Hirokazu Takata
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Modify _port2addr*() routines in arch/m32r/kernel/io_*.c to use
NONCACHE_OFFSET instead of hard-coding of a constant address.This modification is also required to support an M3A-ZA36 FPGA eva board in
case an MMU-less synthesizable m32r core is used.Signed-off-by: Hirokazu Takata
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch is for supporting a new target platform, Renesas M32104UT
evaluation board.The M32104UT is an eval board based on an uT-Engine specification. This board
has an MMU-less M32R family processor, M32104.
http://www-wa0.personal-media.co.jp/pmc/archive/te/te_m32104_e.pdfThis board is one of the most popular M32R platform, so we have ported
Linux/M32R to it.Signed-off-by: Naoto Sugai
Signed-off-by: Hirokazu Takata
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
A trivial fix to remove unused instructions.
Signed-off-by: Naoto Sugai
Signed-off-by: Hirokazu Takata
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Kconfig tweaks and tons of deletions.
Signed-off-by: Ivan Kokshaysky
Cc: Christoph Hellwig
Cc: Richard Henderson
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
With physical CPU hotplug, the CPU is hot removed and it should not receive
any interrupts. Disabling interrupt is much safer. This basically is what we
do in ia64 & x86.Signed-off-by: Shaohua Li
Cc: Andi Kleen
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Ben Collins
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
o Currently, during kexec reboot, IOAPIC is re-programmed back to virtual
wire mode if there was an i8259 connected to it. This enables getting
timer interrupts in second kernel in legacy mode.o After putting into virtual wire mode, IOAPIC delivers the i8259 interrupts
to CPU0. This works well for kexec but not for kdump as we might crash
on a different CPU and second kernel will not see timer interrupts.o This patch modifies the redirection table entry to deliver the timer
interrupts to the cpu we are rebooting (instead of hardcoding to zero).
This ensures that second kernel receives timer interrupts even on a
non-boot cpu.Signed-off-by: Vivek Goyal
Cc: Andi Kleen
Cc: "Seth, Rohit"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
When we re-calibrate the frequency, it is likely that an interrupt (as for
example the main system clock) will be triggered by the system. Therefore
the calibration may not be accurate. This will also provide a fix to bug
#5266.Many thanks to Larry Finger for helping resolving this issue.
Signed-off-by: Bruno Ducrot
Cc: john stultz
Cc: Dave Jones
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
- Fix screen blanking on BIOSes that return APM_NOT_ENGAGED when APM enabled
screen blanking is not turned on.The original code only tried to set the state on device 0x100, and then
0x1FF, and I added 0x101 to the mix too.- Clean up logic in apm_console_blank().
- Prevent the error message from printing out twice.
Cc: Jordan Crouse
Cc: Stephen Rothwell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Provide basic support for the AMD Geode GX and LX processors.
Signed-off-by: Jordan Crouse
Cc: Alan Cox
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
