17 Jul, 2007
33 commits
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This follows a suggestion from Chuck Ebbert on how to make seccomp
absolutely zerocost in schedule too. The only remaining footprint of
seccomp is in terms of the bzImage size that becomes a few bytes (perhaps
even a few kbytes) larger, measure it if you care in the embedded.Signed-off-by: Andrea Arcangeli
Cc: Andi Kleen
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
OpenVZ Linux kernel team has discovered the problem with 32bit quota tools
working on 64bit architectures. In 2.6.10 kernel sys32_quotactl() function
was replaced by sys_quotactl() with the comment "sys_quotactl seems to be
32/64bit clean, enable it for 32bit" However this isn't right. Look at
if_dqblk structure:struct if_dqblk {
__u64 dqb_bhardlimit;
__u64 dqb_bsoftlimit;
__u64 dqb_curspace;
__u64 dqb_ihardlimit;
__u64 dqb_isoftlimit;
__u64 dqb_curinodes;
__u64 dqb_btime;
__u64 dqb_itime;
__u32 dqb_valid;
};For 32 bit quota tools sizeof(if_dqblk) == 0x44.
But for 64 bit kernel its size is 0x48, 'cause of alignment!
Thus we got a problem. Attached patch reintroduce sys32_quotactl() function,
that handles this and related situations.[michal.k.k.piotrowski@gmail.com: build fix]
[akpm@linux-foundation.org: Make it link with CONFIG_QUOTA=n]
Signed-off-by: Vasily Tarasov
Cc: Andi Kleen
Cc: "Luck, Tony"
Cc: Jan Kara
Cc:
Signed-off-by: Michal Piotrowski
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Continuing the work started in 411f0f3edc141a582190d3605cadd1d993abb6df ...
This enables code with a dma path, that compiles away, to build without
requiring additional code factoring. It also prevents code that calls
dma_alloc_coherent and dma_free_coherent from linking whereas previously
the code would hit a BUG() at run time. Finally, it allows archs that set
!HAS_DMA to delete their asm/dma-mapping.h file.Cc: Cornelia Huck
Cc: Martin Schwidefsky
Cc: Heiko Carstens
Cc: John W. Linville
Cc: Kyle McMartin
Cc: James Bottomley
Cc: Tejun Heo
Cc: Jeff Garzik
Cc:
Cc:
Cc:
Cc:
Signed-off-by: Dan Williams
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch is using mmap()'s randomization functionality in such a way that
it maps the main executable of (specially compiled/linked -pie/-fpie)
ET_DYN binaries onto a random address (in cases in which mmap() is allowed
to perform a randomization).Origin of this patch is in exec-shield
(http://people.redhat.com/mingo/exec-shield/)[jkosina@suse.cz: pie randomization: fix BAD_ADDR macro]
Signed-off-by: Jan Kratochvil
Signed-off-by: Jiri Kosina
Cc: Ingo Molnar
Cc: Roland McGrath
Cc: Jakub Jelinek
Signed-off-by: Jiri Kosina
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Make some offending drivers depend on it and set CONFIG_ARCH_NO_VIRT_TO_BUS
for ppc64 so that we don't build those drivers.This gets PowerPC allmodconfig and allyesconfig much closer to building.
Signed-off-by: Stephen Rothwell
Cc: Al Viro
Acked-by: David Miller
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Make a "menuconfig" out of the Kconfig objects "menu, ..., endmenu",
so that the user can disable all the options in that menu at once
instead of having to disable each option separately.Signed-off-by: Jan Engelhardt
Cc: Philippe Elie
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
I forgot this file was here. It hasn't been used since UML has been in
mainline.Thanks to Jesper for finding something that needed doing to it, thus reminding
me of its existence.Signed-off-by: Jeff Dike
Cc: Paolo 'Blaisorblade' Giarrusso
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
COWed devices can't handle more than 32 (64 on x86_64) sectors in one request
due to the size of the bitmap being carried around in the io_thread_req.Enforce that by telling the block layer not to put too many sectors in
requests to COWed devices.Signed-off-by: Jeff Dike
Cc: Paolo 'Blaisorblade' Giarrusso
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add some exports for hostfs that are required after Alberto Bertogli's fixes
for accessing unlinked host files.Also did some style cleanups while I was here.
Signed-off-by: Jeff Dike
Cc: Paolo 'Blaisorblade' Giarrusso
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
UML had two wrapper procedures for kmalloc, um_kmalloc and um_kmalloc_atomic
because the flag constants weren't available in userspace code.
kern_constants.h had made kernel constants available for a long time, so there
is no need for these wrappers any more. Rather, userspace code calls kmalloc
directly with the userspace versions of the gfp flags.kmalloc isn't a real procedure, so I had to essentially copy the inline
wrapper around __kmalloc.vmalloc also had its own wrapper for no good reason. This is now gone.
Signed-off-by: Jeff Dike
Cc: Paolo 'Blaisorblade' Giarrusso
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
run_helper and run_helper_thread had arguments which were the same in all
callers. run_helper's stack_out was always NULL and run_helper_thread's
stack_order was always 0. These are now gone, and the constants folded
into the code.Also fixed leaks of the helper stack in the AIO and SIGIO code.
Signed-off-by: Jeff Dike
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Cleanup of the SIGWINCH support.
Some code and comment reformatting.
The stack used for SIGWINCH threads was leaked. This is now fixed by storing
it with the pid and other information, and freeing it when the thread is
killed.If something goes wrong with a WIGWINCH thread, and this is discovered in the
interrupt handler, the winch record would leak. It is now freed, except that
the IRQ isn't freed. This is hard to do from interrupt context. This has the
side-effect that the IRQ system maintains a reference to the freed structure,
but that shouldn't cause a problem since the descriptor is disabled.register_winch_irq is now much better about cleaning up after an
initialization failure.Signed-off-by: Jeff Dike
Cc: Paolo 'Blaisorblade' Giarrusso
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
If the host side of a console can't be opened, this will now produce visible
error messages.enable_chan now returns a status and this is passed up to con_open and
ssl_open, which will complain if anything went wrong.The default host device for the serial line driver is now a pts device rather
than a pty device since lots of hosts have LEGACY_PTYS disabled. This had
always been failing on such hosts, but silently.Signed-off-by: Jeff Dike
Cc: Paolo 'Blaisorblade' Giarrusso
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Cleanup, mostly style violations.
Tidied the includes.
getmaster returns a real errno, which pty_open returns if there's a
problem.The printks now have severity.
Changed os_* calls to call libc directly.
Signed-off-by: Jeff Dike
Cc: Paolo 'Blaisorblade' Giarrusso
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Major tidying of the xterm console driver:
got rid of the tt-mode gdb support
tidied up the includes
fixed lots of style violations
replaced os_* calls with glibc calls in xterm.c
all printk calls now have a severity indicator
the error paths of xterm_open are closer to being rightSigned-off-by: Jeff Dike
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
DEBUG_SHIRQ generates spurious interrupts, triggering handlers such as
mconsole_interrupt() or line_interrupt(). They expect data to be available to
be read from their sockets/pipes, but in the case of spurious interrupts, the
host didn't actually send anything, so UML hangs in read() and friends.
Setting those fd's as O_NONBLOCK makes DEBUG_SHIRQ-enabled UML kernels boot
and run correctly.Signed-off-by: Eduard-Gabriel Munteanu
Signed-off-by: Jeff Dike
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add generic exit-time stack-depth checking to CONFIG_DEBUG_STACK_USAGE.
This also adds UML support.
Tested on UML and i386.
[akpm@linux-foundation.org: cleanups, speedups, tweaks]
Signed-off-by: Jeff Dike
Cc: Oleg Nesterov
Cc: Ingo Molnar
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
It is theoretically possible for a request to finish and be freed between
writing it to the I/O thread and updating the sector count. In this case, the
update will dereference a freed pointer.To avoid this, I delay the update until processing the next sg segment, when
the request pointer is known to be good.Signed-off-by: Jeff Dike
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Replace the old-style structure member initializers with designated
initializers.Signed-off-by: Robert P. J. Day
Cc: Mikael Starvik
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Mariusz Kozlowski
Cc: Ian Molton
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Fix the following section mismatch warnings:
WARNING: arch/alpha/kernel/built-in.o(.text+0x7c78): Section mismatch: reference to .init.text:init_rtc_irq (between 'common_init_rtc' and 'timer_interrupt')
WARNING: arch/alpha/kernel/built-in.o(.text+0x7c7c): Section mismatch: reference to .init.text:init_rtc_irq (between 'common_init_rtc' and 'timer_interrupt')
WARNING: arch/alpha/kernel/built-in.o(.data+0x2c30): Section mismatch: reference to .init.text:srm_console_setup (between 'srmcons' and 'tsunami_pci_ops')In all three cases functions marked __init was called outside __init context.
So the fix was to just drop the __init attribute.Signed-off-by: Sam Ravnborg
Cc: Meelis Roos
Cc: Ivan Kokshaysky
Cc: Richard Henderson
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Yoshinori Sato
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
arch/h8300/kernel/ints.c is unused.
Signed-off-by: Yoshinori Sato
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
- Add missing files
- Add Makefile target
- Change image base
- Style fixSigned-off-by: Yoshinori Sato
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Remove cache management cruft. This code is dead, all the cache manangement
functions for the ColdFire exist in the header file
include/asm-m68knommu/cacheflush.h.Signed-off-by: Greg Ungerer
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Clean out cruft.
. remove include files not needed
. remove not used CAT_ROMARRAY code
. remove generic machine pointers not used
. remove unused functions
. fix email address in copyrightsSigned-off-by: Greg Ungerer
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Use THREAD_SIZE instead of a hard constant.
Signed-off-by: Philippe De Muyter
Signed-off-by: Greg Ungerer
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Remove some dead chunks of code that are bounded by preprocessor conditionals
controlled by apparently no-longer available config options.These are:
CONFIG_BLK_DEV_BLKMEM
CONFIG_CHR_DEV_FLASH
CONFIG_BLK_DEV_FLASH
CONFIG_CONSOLE[Found by Robert P. J. Day ]
Signed-off-by: David Howells
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Be (self-)consistent and use CONFIG_GDB_CONSOLE everywhere rather than using
CONFIG_GDBSTUB_CONSOLE in some places and not others. This is also then
consistent with other archs.Also remove the gdbstub console device() op which doesn't seem to be necessary
now (especially as it doesn't compile).[Found by Robert P. J. Day ]
Signed-off-by: David Howells
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Connect up new system calls.
Signed-off-by: David Howells
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Kill pte_rdprotect(), pte_exprotect(), pte_mkread(), pte_mkexec(), pte_read(),
pte_exec(), and pte_user() except where arch-specific code is making use of
them.Signed-off-by: Jan Beulich
Cc: Andi Kleen
Cc: Christoph Hellwig
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Beacuse SERIAL_PORT_DFNS is removed from include/asm-i386/serial.h and
include/asm-x86_64/serial.h. the serial8250_ports need to be probed late in
serial initializing stage. the console_init=>serial8250_console_init=>
register_console=>serial8250_console_setup will return -ENDEV, and console
ttyS0 can not be enabled at that time. need to wait till uart_add_one_port in
drivers/serial/serial_core.c to call register_console to get console ttyS0.
that is too late.Make early_uart to use early_param, so uart console can be used earlier. Make
it to be bootconsole with CON_BOOT flag, so can use console handover feature.
and it will switch to corresponding normal serial console automatically.new command line will be:
console=uart8250,io,0x3f8,9600n8
console=uart8250,mmio,0xff5e0000,115200n8
or
earlycon=uart8250,io,0x3f8,9600n8
earlycon=uart8250,mmio,0xff5e0000,115200n8it will print in very early stage:
Early serial console at I/O port 0x3f8 (options '9600n8')
console [uart0] enabled
later for console it will print:
console handover: boot [uart0] -> real [ttyS0]Signed-off-by:
Cc: Andi Kleen
Cc: Bjorn Helgaas
Cc: Russell King
Cc: Gerd Hoffmann
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Needed to get fixed virtual address for USB debug and earlycon with mmio.
Signed-off-by: Eric W. Biderman
Signed-off-by: Yinghai Lu
Cc: Andi Kleen
Cc: Bjorn Helgaas
Cc: Russell King
Cc: Gerd Hoffmann
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
16 Jul, 2007
3 commits
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Fallout from commit 91a6902958f052358899f58683d44e36228d85c2 ('sysfs:
add parameter "struct bin_attribute *" ...')Signed-off-by: Al Viro
Signed-off-by: Linus Torvalds -
s390 is the only 32bit with unsigned long for size_t (usual for those
is unsigned int). Tell sparse...Signed-off-by: Al Viro
Signed-off-by: Linus Torvalds -
Signed-off-by: Al Viro
Acked-by: Benjamin Herrenschmidt
Signed-off-by: Linus Torvalds
14 Jul, 2007
4 commits
-
* master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreq:
[CPUFREQ] Fix typos in powernow-k8 printk's.
[CPUFREQ] Restore previously used governor on a hot-replugged CPU
[CPUFREQ] bugfix cpufreq in combination with performance governor
[CPUFREQ] powernow-k8 compile fix.
[CPUFREQ] the overdue removal of X86_SPEEDSTEP_CENTRINO_ACPI
[CPUFREQ] Longhaul - Option to disable ACPI C3 supportFixed up arch/i386/kernel/cpu/cpufreq/powernow-k8.c due to revert that
got fixed differently in the cpufreq branch.Signed-off-by: Linus Torvalds
-
* 'ioat-md-accel-for-linus' of git://lost.foo-projects.org/~dwillia2/git/iop: (28 commits)
ioatdma: add the unisys "i/oat" pci vendor/device id
ARM: Add drivers/dma to arch/arm/Kconfig
iop3xx: surface the iop3xx DMA and AAU units to the iop-adma driver
iop13xx: surface the iop13xx adma units to the iop-adma driver
dmaengine: driver for the iop32x, iop33x, and iop13xx raid engines
md: remove raid5 compute_block and compute_parity5
md: handle_stripe5 - request io processing in raid5_run_ops
md: handle_stripe5 - add request/completion logic for async expand ops
md: handle_stripe5 - add request/completion logic for async read ops
md: handle_stripe5 - add request/completion logic for async check ops
md: handle_stripe5 - add request/completion logic for async compute ops
md: handle_stripe5 - add request/completion logic for async write ops
md: common infrastructure for running operations with raid5_run_ops
md: raid5_run_ops - run stripe operations outside sh->lock
raid5: replace custom debug PRINTKs with standard pr_debug
raid5: refactor handle_stripe5 and handle_stripe6 (v3)
async_tx: add the async_tx api
xor: make 'xor_blocks' a library routine for use with async_tx
dmaengine: make clients responsible for managing channels
dmaengine: refactor dmaengine around dma_async_tx_descriptor
... -
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
[MIPS] Workaround for a sparse warning in include/asm-mips/mach-tx4927/ioremap.h
[MIPS] Make show_code static and add __user tag
[MIPS] Workaround for a sparse warning in include/asm-mips/compat.h
[MIPS] Add some __user tags
[MIPS] math-emu minor cleanup
[MIPS] Kill CONFIG_TX4927BUG_WORKAROUND
[MIPS] Alchemy: Remove code wrapped by dead symbol CONFIG_FB_XPERT98
[MIPS] Alchemy: Remove code wrapped by dead symbol CONFIG_AU1000_SRC_CLK
[MIPS] Alchemy: Remove code wrapped by dead symbol CONFIG_AU1000_USE32K
[MIPS] Alchemy: Remove code wrapped by dead symbol CONFIG_AU1XXX_PSC_SPI
[CHAR] Delete leftovers of old Alchemy UART driver -
This reverts commit 904f7a3f042b5c6aa9e53ce83f2c9de5e33170ff.
As noted by Peter Anvin:
"It causes build failures on i386.
Yet another case of unnecessary divergence between i386 and x86-64
I'm afraid..."Signed-off-by: Linus Torvalds
