At the moment, balance_tasks() provides low level functionality for both
move_tasks() and move_one_task() (indirectly) via the load_balance()
function (in the sched_class interface) which also provides dual
functionality. This dual functionality complicates the interfaces and
internal mechanisms and makes the run time overhead of operations that
are called with two run queue locks held.
This patch addresses this issue and reduces the overhead of these
operations.
Signed-off-by: Peter Williams <pwil3058@bigpond.net.au>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Jeff Dike noticed that wait_for_completion_interruptible()'s prototype
had a mismatched fastcall.
Fix this by removing the fastcall attributes from all the completion APIs.
Found-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This adds support for converting the 11 currently defined Reset codes into system
error numbers, which are stored in sk_err for further interpretation.
This makes the externally visible API behaviour similar to TCP, since a client
connecting to a non-existing port will experience ECONNREFUSED.
* Code 0, Unspecified, is interpreted as non-error (0);
* Code 1, Closed (normal termination), also maps into 0;
* Code 2, Aborted, maps into "Connection reset by peer" (ECONNRESET);
* Code 3, No Connection and
Code 7, Connection Refused, map into "Connection refused" (ECONNREFUSED);
* Code 4, Packet Error, maps into "No message of desired type" (ENOMSG);
* Code 5, Option Error, maps into "Illegal byte sequence" (EILSEQ);
* Code 6, Mandatory Error, maps into "Operation not supported on transport endpoint" (EOPNOTSUPP);
* Code 8, Bad Service Code, maps into "Invalid request code" (EBADRQC);
* Code 9, Too Busy, maps into "Too many users" (EUSERS);
* Code 10, Bad Init Cookie, maps into "Invalid request descriptor" (EBADR);
* Code 11, Aggression Penalty, maps into "Quota exceeded" (EDQUOT)
which makes sense in terms of using more than the `fair share' of bandwidth.
Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Acked-by: Ian McDonald <ian.mcdonald@jandi.co.nz>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This fixes a problem when analysing erroneous packets in dccp_v{4,6}_err:
* dccp_hdr_seq currently takes an skb
* however, the transport headers in the skb are shifted, due to the
preceding IPv4/v6 header.
Fixed for v4 and v6 by changing dccp_hdr_seq to take a struct dccp_hdr as
argument. Verified that the correct sequence number is now reported in the
error handler.
Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Acked-by: Ian McDonald <ian.mcdonald@jandi.co.nz>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Most drivers need to set length and offset as well, so may as well fold
those three lines into one.
Add sg_assign_page() for those two locations that only needed to set
the page, where the offset/length is set outside of the function context.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
The latest sg changes introduce the following build errors on AVR32:
include/asm/dma-mapping.h: In function ‘dma_map_sg’:
include/asm/dma-mapping.h:220: error: implicit declaration of function ‘sg_page’
include/asm/dma-mapping.h:220: error: invalid operands to binary -
include/asm/dma-mapping.h:221: error: implicit declaration of function ‘sg_virt’
include/asm/dma-mapping.h:221: warning: assignment makes pointer from integer without a cast
include/asm/dma-mapping.h: In function ‘dma_sync_sg_for_device’:
include/asm/dma-mapping.h:330: warning: passing argument 2 of ‘dma_cache_sync’ makes pointer from integer without a cast
Fix it by including the correct header file, i.e. linux/scatterlist.h
instead of asm/scatterlist.h.
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Some are already declared in include/linux/netdevice.h, while
some others (xfrm ones) need to be declared.
The driver/net/rrunner.c just uses same extern as well, so
cleanup it also.
Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
The tcp_minshall_update() function is called in exactly one place, and is
passed an unsigned integer for the mss_len argument. Make the sign of the
argument match the sign of the passed variable in order to eliminate an
unneeded implicit type cast and a mixed sign comparison in
tcp_minshall_update().
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In some places, the result of skb_headroom() is compared to an unsigned
integer, and in others, the result is compared to a signed integer. Make
the comparisons consistent and correct.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add a port type definition for the Freescale UART driver ports (mcf.c).
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Remove old definitions of the timer function pointers.
Add definitions of the common hardware timer functions.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Add platform support structure for use with new ColdFire UART driver.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* 'irq-upstream' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/misc-2.6:
[SPARC, XEN, NET/CXGB3] use irq_handler_t where appropriate
drivers/char/riscom8: clean up irq handling
isdn/sc: irq handler clean
isdn/act2000: fix major bug. clean irq handler.
char/pcmcia/synclink_cs: trim trailing whitespace
drivers/char/ip2: separate polling and irq-driven work entry points
drivers/char/ip2: split out irq core logic into separate function
[NETDRVR] lib82596, netxen: delete pointless tests from irq handler
Eliminate pointless casts from void* in a few driver irq handlers.
[PARPORT] Remove unused 'irq' argument from parport irq functions
[PARPORT] Kill useful 'irq' arg from parport_{generic_irq,ieee1284_interrupt}
[PARPORT] Consolidate code copies into a single generic irq handler
* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6: (39 commits)
Remove Andrew Morton from list of net driver maintainers.
bonding: Acquire correct locks in alb for promisc change
bonding: Convert more locks to _bh, acquire rtnl, for new locking
bonding: Convert locks to _bh, rework alb locking for new locking
bonding: Convert miimon to new locking
bonding: Convert balance-rr transmit to new locking
Convert bonding timers to workqueues
Update MAINTAINERS to reflect my (jgarzik's) current efforts.
pasemi_mac: fix typo
defxx.c: dfx_bus_init() is __devexit not __devinit
s390 MAINTAINERS
remove header_ops bug in qeth driver
sky2: crash on remove
MIPSnet: Delete all the useless debugging printks.
AR7 ethernet: small post-merge cleanups and fixes
mv643xx_eth: Hook up mv643xx_get_sset_count
mv643xx_eth: Remove obsolete checksum offload comment
mv643xx_eth: Merge drivers/net/mv643xx_eth.h into mv643xx_eth.c
mv643xx_eth: Remove unused register defines
mv643xx_eth: Clean up mv643xx_eth.h
...
Tackle the relatively sane complaints of checkpatch --file.
The vast majority is indentation and whitespace changes, the rest are
* #include fixes
* printk KERN_xxx prefix addition
* BSS/initializer cleanups
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Remove qeth bug caused by commit:
[NET]: Move hardware header operations out of netdevice.
This is the second part of the qeth header_ops patch, since
first patch sent 10/19 has been insufficient.
Nevertheless first patch is still valid and should be kept.
Signed-off-by: Ursula Braun <braunu@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
None of the drivers with a struct pardevice's ->irq_func() hook ever
used the 'irq' argument passed to it, so remove it.
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
parport_ieee1284_interrupt() was not using its first arg at all.
Delete.
parport_generic_irq()'s second arg makes its first arg completely
redundant. Delete, and use port->irq in the one place where we actually
need it.
Also, s/__inline__/inline/ to make the code look nicer.
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Several arches used the exact same code for their parport irq handling.
Make that code generic, in parport_irq_handler().
Also, s/__inline__/inline/ in include/linux/parport.h.
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Make <asm/setup.h> usable by the boot code.
Clean up vestiges of the old command-line protocol from setup.h and
head_32.S (it is still supported from the boot loader point of
view, since it is converted to the new command-line protocol by the
boot code.)
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
During hibernation and suspend on x86_64 save CPU registers in the saved_context
structure rather than in a handful of separate variables.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Merge mmu_32.h and mmu_64.h into mmu.h.
Signed-off-by: Chris Snook <csnook@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
I missed an obvious one!
x86 CPUs are defined not to reorder stores past earlier loads, so there is
no hardware memory barrier required to implement a release-consistent store
(all stores are, by definition).
So ditch the generic lock bitops, and implement optimised versions for x86,
which removes the mfence from __clear_bit_unlock (which is already a useful
primitive for SLUB).
Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs:
9p: v9fs_vfs_rename incorrect clunk order
9p: fix memleak in fs/9p/v9fs.c
9p: add virtio transport
