09 Jan, 2006
40 commits
-
This is a rewrite of Andi Kleen's bloat-o-meter with sorting and reporting of
gainers/decliners. Sample output:add/remove: 0/8 grow/shrink: 2/0 up/down: 88/-4424 (-4336)
function old new delta
__copy_to_user_ll 59 103 +44
__copy_from_user_ll 59 103 +44
fill_note 32 - -32
maydump 58 - -58
dump_seek 67 - -67
writenote 180 - -180
elf_dump_thread_status 274 - -274
fill_psinfo 308 - -308
fill_prstatus 466 - -466
elf_core_dump 3039 - -3039The summary line says:
no functions added, 8 removed
two functions grew, none shrunk
we gained 88 bytes and lost 4424 (or -4336 net)This work was sponsored in part by CE Linux Forum
Signed-off-by: Matt Mackall
Cc: Andi Kleen
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
module_init functions must be tagged __init rather than __devinit; likewise,
module_exit functions must be tagged __exit rather than __devexit.Signed-off-by: Jean Delvare
Cc: Yoichi Yuasa
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This sneaked in with one of the updates.
Signed-off-by: Adrian Bunk
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
It's not good if caller and callee disagree regarding the type of the
arguments.In this case, this could cause problems on 64bit architectures.
Signed-off-by: Adrian Bunk
Signed-off-by: Armin Schindler
Cc: Karsten Keil
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Every file should #include the headers containing the prototypes for its
global functions.Signed-off-by: Adrian Bunk
Signed-off-by: Armin Schindler
Cc: Karsten Keil
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Factor out common code for different RUSAGE_xxx cases.
Don't take ->sighand->siglock in RUSAGE_SELF case, suggested by Ravikiran G
Thirumalai .Signed-off-by: Oleg Nesterov
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Request the IRQ after having set everything up. Otherwise a shared interrupt
at the right time can kill the machine.Found this with David Woodhouse 's
debug-shared-irqs.patch.Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Ben Collins
Cc: Sam Ravnborg
Cc: Roman Zippel
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Use first_cpu(cpu_possible_map) for the single-thread workqueue case. We
used to hardcode 0, but that broke on systems where !cpu_possible(0) when
workqueue_struct->cpu_workqueue_struct was changed from a static array to
alloc_percpu.Commit id bce61dd49d6ba7799be2de17c772e4c701558f14 ("Fix hardcoded cpu=0 in
workqueue for per_cpu_ptr() calls") fixed that for Ben's funky sparc64
system, but it regressed my Power5. Offlining cpu 0 oopses upon the next
call to queue_work for a single-thread workqueue, because now we try to
manipulate per_cpu_ptr(wq->cpu_wq, 1), which is uninitialized.So we need to establish an unchanging "slot" for single-thread workqueues
which will have a valid percpu allocation. Since alloc_percpu keys off of
cpu_possible_map, which must not change after initialization, make this
slot == first_cpu(cpu_possible_map).Signed-off-by: Nathan Lynch
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Use ARRAY_SIZE macro instead of sizeof(x)/sizeof(x[0]) and remove a
duplicate of ARRAY_SIZE. Some trailing whitespaces are also removed.drivers/block/acsi* has been left out as it's marked BROKEN.
Signed-off-by: Tobias Klauser
Cc: Jens Axboe
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
APM doesn't _need_ the PM_LEGACY junk, so remove it's dependancy from
Kconfig, and ifdef the junk in the code. Whilst the ifdefs are ugly, when
the legacy stuff gets ripped out so will the ifdefs.Signed-off-by: Dave Jones
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The CAPI message structs itself should be packed and not the location of
single fields in the structure.Signed-off-by: Jan Blunck
Acked-by: Karsten Keil
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Remove the unnecessary __attribute__((packed)) since the enum itself is packed
and not the location of it in the structure.Signed-off-by: Jan Blunck
Cc: David Howells
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Since version 4.1 the gcc is warning about ignored attributes. This patch is
using the equivalent attribute on the struct instead of on each of the
structure or union members.GCC Manual:
"Specifying Attributes of Typespacked
This attribute, attached to struct or union type definition, specifies
that
each member of the structure or union is placed to minimize the memory
required. When attached to an enum definition, it indicates that the
smallest integral type should be used.Specifying this attribute for struct and union types is equivalent to
specifying the packed attribute on each of the structure or union
members."Signed-off-by: Jan Blunck
Cc: Dave Jones
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Earlier fix removed unused phase, but that changed the values for other
phases. Since these are exposed to userspace through ppdev, it is safer
not to change them. Restore the unused phase value.Signed-off-by: Marko Kohtala
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
free_dma() isn't implemented on ARM unless HAS_DMA is set.
Cc: Russell King
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Adds a bit of text to Documentation/Codingstyle to state that inlining
everything "just because" is a bad ideaSigned-off-by: Arjan van de Ven
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
pci.lst lists device 80862430 as another RNG
# grep 80862430 /lib/discover/pci.lst
80862430 bridge i810_rng 82801AB PCI Bridgebut it's not listed in rng_pci_tbl[]
Cc: Jeff Garzik
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
scripts/kconfig/qconf.h:25: error: extra qualification âConfigSettings::â on member âreadSizesâ
scripts/kconfig/qconf.h:26: error: extra qualification âConfigSettings::â on member âwriteSizesâ
scripts/kconfig/qconf.h:127: error: extra qualification âConfigList::â on member âupdateMenuListâSigned-off-by: Dave Jones
Cc: Roman Zippel
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
- remove unnecessary -ENOMEM assignments
- return correct value when buf_check_size for second time in a buffer
- handle failures when create_workqueue and kthread_create are called
- use kzalloc instead of kmalloc/memset 0
- v9fs_str_copy and v9fs_str_compare were buggy, were used only in one
place, correct the logic and move it to the place it is used.Signed-off-by: Latchesar Ionkov
Cc: Eric Van Hensbergen
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Performance enhancement reducing the number of copies in the data and
stat paths.Signed-off-by: Latchesar Ionkov
Cc: Eric Van Hensbergen
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
v9fs_create doesn't manage correctly the fids when it is called to create a
directory.. The fid created by the create 9P call (newfid) and the one
created by walking to already created file (wfidno) are not used
consistently.This patch cleans up the usage of newfid and wfidno.
Signed-off-by: Latchesar Ionkov
Cc: Eric Van Hensbergen
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
New multiplexer implementation. Decreases the number of kernel threads
required. Better handling when the user process receives a signal.Signed-off-by: Latchesar Ionkov
Cc: Eric Van Hensbergen
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
If a 9pfs server crashes, v9fs_fd_close() is called. Subsequently, in
cleaning up by performing a umount() on the FS that was provided by this
server v9fs_fd_close() is called again, and uses the old, freed valus of
trans->priv. This patch ensures that trans->priv can be freed only once,
otherwise this function bails early.Signed-off-by: Michal Ostrowski
Signed-off-by: Eric Van Hensbergen
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This makes it possible for boot code to use screen_info without dragging in
all of tty.h.Signed-off-by: Brian Gerst
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add EMAC to my CREDITS entry.
Signed-off-by: Eugene Surovegin
Signed-off-by: Linus Torvalds -
Add desired 'diffstat' options to use for kernel patches.
Signed-off-by: Randy Dunlap
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Evgeniy Polyakov
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch fixes a data corruption in smb_proc_setattr_unix()
(smb_filetype_from_mode() returns an u32, and there are only four bytes
reserved for it in data.Signed-off-by: Adrian Bunk
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
PTRACE_SYSEMU{,_SINGLESTEP} is actually arch specific, for now, and the
current allocated number clashes with a ptrace code of frv, i.e.
PTRACE_GETFDPIC. I should have submitted this much earlier, anyway we get no
breakage for this.CC: Daniel Jacobowitz
Signed-off-by: Paolo 'Blaisorblade' Giarrusso
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Remove the redundant spinlock in the function resolve_symbol() as we are
not altering the module list, and we already hold the semaphore.Signed-off-by: Ashutosh Naik
Cc: Rusty Russell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Reduce the size of the pageframe for NR_CPUS>4, CONFIG_PREEMPT back to the
minimal size by unionising both ->private and ->mapping with the pagetable
lock.It uses an anonymous struct and hence requires gcc-3.x.
Cc: Hugh Dickins
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Reorder members of the kiocb structure to make sync kiocb setup faster. By
setting the elements sequentially, the write combining buffers on the CPU
are able to combine the writes into a single burst, which results in fewer
cache cycles being consumed, freeing them up for other code. This results
in a 10-20KB/s[*] increase on the bw_unix part of LMbench on my test
system.* The improvement varies based on what other patches are in the system,
as there are a number of bottlenecks, so this number is not absolutely
accurate.Signed-off-by: Benjamin LaHaise
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Currently TAINT_FORCED_RMMOD is totally unused. Because it is marked as
TAINT_FORCED_MODULE instead when user forced a module unload. This patch
marks it correctlySigned-off-by: Akinobu Mita
Cc: Rusty Russell
Cc: Dave Jones
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Ensure that an exported symbol does not already exist in the kernel or in
some other module's exported symbol table. This is done by checking the
symbol tables for the exported symbol at the time of loading the module.
Currently this is done after the relocation of the symbol.Signed-off-by: Ashutosh Naik
Signed-off-by: Anand Krishnan
Cc: Rusty Russell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Ben Collins
Cc: "Brown, Len"
Cc: linux-acpi@vger.kernel.org
Cc: Stelian Pop
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Do not use platform_device_register_simple() as it is going away, implement
->probe() and -remove() functions so manual binding and unbinding will work
with this driver.Signed-off-by: Dmitry Torokhov
Cc: Stelian Pop
Cc: Mattia Dongili
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Function prototypes belong into header files.
Signed-off-by: Adrian Bunk
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add a hook so architectures can validate /dev/mem mmap requests.
This is analogous to validation we already perform in the read/write
paths.The identity mapping scheme used on ia64 requires that each 16MB or
64MB granule be accessed with exactly one attribute (write-back or
uncacheable). This avoids "attribute aliasing", which can cause a
machine check.Sample problem scenario:
- Machine supports VGA, so it has uncacheable (UC) MMIO at 640K-768K
- efi_memmap_init() discards any write-back (WB) memory in the first granule
- Application (e.g., "hwinfo") mmaps /dev/mem, offset 0
- hwinfo receives UC mapping (the default, since memmap says "no WB here")
- Machine check abort (on chipsets that don't support UC access to WB
memory, e.g., sx1000)In the scenario above, the only choices are
- Use WB for hwinfo mmap. Can't do this because it causes attribute
aliasing with the UC mapping for the VGA MMIO space.
- Use UC for hwinfo mmap. Can't do this because the chipset may not
support UC for that region.
- Disallow the hwinfo mmap with -EINVAL. That's what this patch does.Signed-off-by: Bjorn Helgaas
Cc: Hugh Dickins
Cc: "Luck, Tony"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
