23 Jun, 2006
40 commits
-
Add read_mapping_page() which is used for callers that pass
mapping->a_ops->readpage as the filler for read_cache_page. This removes
some duplication from filesystem code.Signed-off-by: Pekka Enberg
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Create two files in /sys/kernel, kexec_loaded and kexec_crash_loaded. Each
file contains a simple boolean value indicating whether the relevant kernel
has been loaded into memory. The motivation for this is geared around
support.Signed-off-by: Jeff Moyer
Cc: "Eric W. Biederman"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
On zSeries machines there exists an interface which allows the operating
system to retrieve LPAR hypervisor accounting data. For example, it is
possible to get usage data for physical and virtual cpus. In order to
provide this information to user space programs, I implemented a new
virtual Linux file system named 's390_hypfs' using the Linux 2.6 libfs
framework. The name 's390_hypfs' stands for 'S390 Hypervisor Filesystem'.
All the accounting information is put into different virtual files which
can be accessed from user space. All data is represented as ASCII strings.When the file system is mounted the accounting information is retrieved and
a file system tree is created with the attribute files containing the cpu
information. The content of the files remains unchanged until a new update
is made. An update can be triggered from user space through writing
'something' into a special purpose update file.We create the following directory structure:
/
update
cpus/
type
mgmtime
...
hyp/
type
systems/
cpus/
type
mgmtime
cputime
onlinetime
...
cpus/
...- update: File to trigger update
- cpus/: Directory for all physical cpus
- cpus//: Directory for one physical cpu.
- cpus//type: Type name of physical zSeries cpu.
- cpus//mgmtime: Physical-LPAR-management time in microseconds.
- hyp/: Directory for hypervisor information
- hyp/type: Typ of hypervisor (currently only 'LPAR Hypervisor')
- systems/: Directory for all LPARs
- systems//: Directory for one LPAR.
- systems//cpus//: Directory for the virtual cpus
- systems//cpus//type: Typ of cpu.
- systems//cpus//mgmtime:
Accumulated number of microseconds during which a physical
CPU was assigned to the logical cpu and the cpu time was
consumed by the hypervisor and was not provided to
the LPAR (LPAR overhead).- systems//cpus//cputime:
Accumulated number of microseconds during which a physical CPU
was assigned to the logical cpu and the cpu time was consumed
by the LPAR.- systems//cpus//onlinetime:
Accumulated number of microseconds during which the logical CPU
has been online.As mount point for the filesystem /sys/hypervisor/s390 is created.
The update process is triggered when writing 'something' into the
'update' file at the top level hypfs directory. You can do this e.g.
with 'echo 1 > update'. During the update the whole directory structure
is deleted and built up again.Cc: Pekka Enberg
Cc: Ingo Oeser
Cc: Joern Engel
Acked-by: Martin Schwidefsky
Signed-off-by: Michael Holzheu
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
verify_area() is still alive on xtensa in 2.6.17-rc3-git13 It would be nice
to finally be rid of that function across the board.Signed-off-by: Chris Zankel
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Al Viro
Cc: Roman Zippel
Cc: Geert Uytterhoeven
Acked-by: Benjamin Herrenschmidt
Cc: Paul Mackerras
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Cast is not an lvalue; =r constraint wants an lvalue and really couldn't
care whether it's void * or other pointer type.Signed-off-by: Al Viro
Cc: Roman Zippel
Cc: Geert Uytterhoeven
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Jan Altenberg
Cc: Geert Uytterhoeven
Cc: Greg Ungerer
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This uninlines a few large functions in uaccess.h and cleans up the rest.
It includes a (hopefully temporary) workaround for the broken typeof of
gcc-4.1.Signed-off-by: Roman Zippel
Cc: Geert Uytterhoeven
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Some fixes and cleanups from the linux-mac68k repo. Fix mac_esp by clearing
the VIA2 SCSI IRQ flag before the SCSI IRQ handler is invoked. Also fix a
race condition caused by unmasking a nubus slot IRQ then setting the relevant
nubus_active bit.Signed-off-by: Finn Thain
Signed-off-by: Roman Zippel
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Adjust entry.S to the changed HARDIRQ_MASK, add a check to prevent it from
silently breaking again.Signed-off-by: Roman Zippel
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
MAX_NR_ZONES changed, so use correct defines now.
Signed-off-by: Roman Zippel
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The wd33c93 needs a small delay before a new command can be started.
Signed-off-by: Roman Zippel
Cc: James Bottomley
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Dump the extra mapping in the amikbd interrupt handler, so old Amiga keymaps
work again. Amigas need a special keymap anyway, standard keymaps are not
usable and recreating all keymaps is simply not worth the trouble.Signed-off-by: Roman Zippel
Cc: Dmitry Torokhov
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Pass unmodified stack argument to show_trace().
Signed-off-by: Roman Zippel
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Roman Zippel
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
These definitions have long been superseded by asm-offsets.h
Signed-off-by: Roman Zippel
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Remove long obsolete kernel syscalls, only execve is still used.
Signed-off-by: Roman Zippel
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The atyfb_driver structure is only available if CONFIG_PCI is set.
Signed-off-by: Roman Zippel
Cc: "Antonino A. Daplas"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
ide_setup_ports does not completely initialize the hw_regs_t structure which
can cause random failures, as the structure is often on the stack. None of
the callers expect a partially initialized structure, i.e. none of them do
any setup of their own before calling ide_setup_ports().Signed-off-by: Roman Zippel
Cc: Bartlomiej Zolnierkiewicz
Cc: Alan Cox
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Move do_suspend_lowlevel to correct segment. If it is in the same hugepage
with ro data, mark_rodata_ro will make it unexecutable.Signed-off-by: Shaohua Li
Cc: Len Brown
Cc: Pavel Machek
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Update documentation a bit, add more machines to video.txt list.
Signed-off-by: Pavel Machek
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
flush_tlb_all uses on_each_cpu, which will disable/enable interrupt.
In suspend/resume time, this will make interrupt wrongly enabled.Signed-off-by: Shaohua Li
Cc: Pavel Machek
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Make swsusp allocate only as much memory as needed to store the image data
and metadata during resume.Without this patch swsusp additionally allocates many page frames that will
conflict with the "original" locations of the image data and are considered
as "unsafe", treating them as "eaten" pages (ie. allocated but unusable).The patch makes swsusp allocate as many pages as it'll need to store the
data read from the image in one shot, creating a list of allocated "safe"
pages, and use the observation that all pages allocated by it are marked
with the PG_nosave and PG_nosave_free flags set. Namely, when it's about
to load an image page, swsusp can check whether the page frame
corresponding to the "original" location of this page has been allocated
(ie. if the page frame has the PG_nosave and PG_nosave_free flags set) and
if so, it can load the page directly into this page frame. Otherwise it
uses an allocated "safe" page from the list to store the data that will be
copied to their "original" location later on.This allows us to save many page copyings and page allocations during
resume and in the future it may allow us to load images greater than 50% of
the normal zone.Signed-off-by: Rafael J. Wysocki
Acked-by: "Pavel Machek"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
- make needlessly global functions static
- make dummy functions static inlineSigned-off-by: Adrian Bunk
Acked-by: Pavel Machek
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
swsusp allocates memory from the normal zone, so it cannot use lowmem
reserve pages from the lower zones. Therefore it should not count these
pages as available to it.Signed-off-by: Rafael J. Wysocki
Cc: Pavel Machek
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Pages (Reserved/ACPI NVS/ACPI Data) below end_pfn will be saved/restored by S4
currently. We should mark 'Reserved' pages not saveable.Pages (Reserved/ACPI NVS/ACPI Data) above end_pfn will not be saved/restored
by S4 currently. We should save the 'ACPI NVS/ACPI Data' pages.Signed-off-by: Shaohua Li
Cc: Pavel Machek
Cc: "Rafael J. Wysocki"
Cc: Nigel Cunningham
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Pages (Reserved/ACPI NVS/ACPI Data) below max_low_pfn will be saved/restored
by S4 currently. We should mark 'Reserved' pages not saveable.Pages (Reserved/ACPI NVS/ACPI Data) above max_low_pfn will not be
saved/restored by S4 currently. We should save the 'ACPI NVS/ACPI Data'
pages.Signed-off-by: Shaohua Li
Cc: Pavel Machek
Cc: "Rafael J. Wysocki"
Cc: Nigel Cunningham
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
1. Add architecture specific pages save/restore support. Next two patches
will use this to save/restore 'ACPI NVS' pages.2. Allow reserved pages 'nosave'. This could avoid save/restore BIOS
reserved pages.Signed-off-by: Shaohua Li
Cc: Pavel Machek
Cc: "Rafael J. Wysocki"
Cc: Nigel Cunningham
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
WARNING: vmlinux: 'enable_irq' exported twice. Previous export was in vmlinux
WARNING: vmlinux: 'disable_irq' exported twice. Previous export was in vmlinux
WARNING: vmlinux: 'disable_irq_nosync' exported twice. Previous export was in vmlinux
WARNING: vmlinux: 'probe_irq_mask' exported twice. Previous export was in vmlinux
WARNING: vmlinux: 'sys_open' exported twice. Previous export was in vmlinux
WARNING: vmlinux: 'sys_read' exported twice. Previous export was in vmlinux
WARNING: vmlinux: 'strstr' exported twice. Previous export was in vmlinux
WARNING: vmlinux: 'memscan' exported twice. Previous export was in vmlinux
WARNING: vmlinux: 'memcmp' exported twice. Previous export was in vmlinux
WARNING: vmlinux: 'strnlen' exported twice. Previous export was in vmlinux
WARNING: vmlinux: 'strncmp' exported twice. Previous export was in vmlinux
WARNING: vmlinux: 'strcmp' exported twice. Previous export was in vmlinuxSigned-off-by: Mathieu Chouquet-Stringer
Cc: Richard Henderson
Cc: Ivan Kokshaysky
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
compile fix: needs for 'u8' --
just look at struct alt_instr.My module includes as the first header, and as of 2.6.17 this
leads to compilation errors.Signed-off-by: Kirill Smelkov
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
New CPU flags for next generation of crypto engine as found in VIA C7
processors.Signed-off-by: Michal Ludvig
Cc: Andi Kleen
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Sometimes thread_info and task_struct get out-of-sync with each other.
Printing task.thread_info in show_registers() can help spot this. And when
task_struct is corrupt then task.comm can contain garbage, so only print as
many characters as it can hold.Signed-off-by: Chuck Ebbert
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
An immediate operand can't be the destination of the cmpl instruction,
so exclude it.Signed-off-by: Roman Zippel
Cc: Mattia Dongili
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Never allow int3 traps from V8086 mode to enter the kprobes handler.
Signed-off-by: Zachary Amsden
Cc: Prasanna S Panchamukhi
Cc: Ananth N Mavinakayanahalli
Cc: Anil S Keshavamurthy
Cc: Chuck Ebbert
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
We need to check for vm86 mode first before looking at selector privilege
bits.Segment limit is always base + 64k and only the low 16 bits of EIP are
significant in vm86 mode.Signed-off-by: Chuck Ebbert
Cc: Andi Kleen
Cc: Zachary Amsden
Cc: Rohit Seth
Acked-by: Ananth N Mavinakayanahalli
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Use proper defines instead of open-coded values.
Signed-off-by: Andreas Mohr
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
constify structs and add one __initdata.
Signed-off-by: Andreas Mohr
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Andreas Mohr
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Andreas Mohr
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
PCI code was outside of CONFIG_PCI, add __initdata at cyrix_55x0 (since
accessed within __init function only).Signed-off-by: Andreas Mohr
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
