This patch allows qdisc support in A-MPDU Tx. a method to
handle QoS <-> TID switches is present in this patch.
Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This patch adds the API for 3 stages in A-MPDU Tx session flow:
- request mac80211 to start/stop A-MPDU Tx session for specific TID. such a
request should be issued by a load aware element, either mac80211 itself
or external element.
- requests by mac80211 to low-level driver to start/stop Tx aggregation.
notice that low level driver responds now with Starting Sequence Number.
- async feedback by low-level to mac80211 to inform that HW is ready for
next A-MPDU Tx state.
Changes in API to Rx A-MPDU were also made, reflected in iwlwifi changes as
well.
Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
After the patch:
$ git-grep llc_addrany | wc -l
0
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
After the patch:
$ git-grep sctp_sysctl_jiffies_ms | wc -l
0
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Acked-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
It looks like dst parameter is used in this API due to historical
reasons. Actually, it is really used in the direct call to
tcp_v4_send_synack only. So, create a wrapper for tcp_v4_send_synack
and remove dst from rtx_syn_ack.
Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
RFC 3873 specifies several MIB objects that can't be obtained by the
current data set exported by /proc/sys/net/sctp/assoc. This patch
adds the missing pieces of data that allow us to compute all the
objects in the sctpAssocTable object.
Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
All preparations are done. Now just add a hook to perform an
initialization on namespace startup and replace icmpv6_sk macro with
proper inline call. Actual namespace the packet belongs too will be
passed later along with the one for the routing.
Signed-off-by: Denis V. Lunev <den@openvz.org>
Acked-by: Daniel Lezcano <dlezcano@fr.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
All preparations are done. Now just add a hook to perform an
initialization on namespace startup and replace icmp_sk macro with
proper inline call.
Signed-off-by: Denis V. Lunev <den@openvz.org>
Acked-by: Daniel Lezcano <dlezcano@fr.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This staff will be needed for non-netlink kernel sockets, which should
also not pin a namespace like tcp_socket and icmp_socket.
Signed-off-by: Denis V. Lunev <den@openvz.org>
Acked-by: Daniel Lezcano <dlezcano@fr.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
icmp_init could fail and this is normal for namespace other than initial.
So, the panic should be triggered only on init_net initialization path.
Additionally create rollback path for icmp_init as a separate function.
It will also be used later during namespace destruction.
Signed-off-by: Denis V. Lunev <den@openvz.org>
Acked-by: Daniel Lezcano <dlezcano@fr.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
struct net_proto_family* is not used in icmp[v6]_init, ndisc_init,
igmp_init and tcp_v4_init. Remove it.
Signed-off-by: Denis V. Lunev <den@openvz.org>
Acked-by: Daniel Lezcano <dlezcano@fr.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
* git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched:
softlockup: fix task state setting
rcu: add support for dynamic ticks and preempt rcu
The 2.6.25 ptrace_bts_config structure in asm-x86/ptrace-abi.h
is defined with u32 types:
#include <asm/types.h>
/* configuration/status structure used in PTRACE_BTS_CONFIG and
PTRACE_BTS_STATUS commands.
*/
struct ptrace_bts_config {
/* requested or actual size of BTS buffer in bytes */
u32 size;
/* bitmask of below flags */
u32 flags;
/* buffer overflow signal */
u32 signal;
/* actual size of bts_struct in bytes */
u32 bts_size;
};
#endif
But u32 is only accessible in asm-x86/types.h if __KERNEL__,
leading to compile errors when ptrace.h is included from
user-space. The double-underscore versions that are exported
to user-space in asm-x86/types.h should be used instead.
Signed-off-by: Dave Anderson <anderson@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
I recently stumbled upon a problem in the support for huge pages. If a
program using huge pages does not explicitly unmap them, they remain
mapped (and therefore, are lost) after the program exits.
I observed that the free huge page count in /proc/meminfo decreased when
running my program, and it did not increase after the program exited.
After running the program a few times, no more huge pages could be
allocated.
The reason for this seems to be that the x86 pmd_bad and pud_bad
consider pmd/pud entries having the PSE bit set invalid. I think there
is nothing wrong with this bit being set, it just indicates that the
lowest level of translation has been reached. This bit has to be (and
is) checked after the basic validity of the entry has been checked, like
in this fragment from follow_page() in mm/memory.c:
if (pmd_none(*pmd) || unlikely(pmd_bad(*pmd)))
goto no_page_table;
if (pmd_huge(*pmd)) {
BUG_ON(flags & FOLL_GET);
page = follow_huge_pmd(mm, address, pmd, flags & FOLL_WRITE);
goto out;
}
Note that this code currently doesn't work as intended if the pmd refers
to a huge page, the pmd_huge() check can not be reached if the page is
huge.
Extending pmd_bad() (and, for future 1GB page support, pud_bad()) to
allow for the PSE bit being set fixes this. For similar reasons,
allowing the NX bit being set is necessary, too. I have seen huge pages
having the NX bit set in their pmd entry, which would cause the same
problem.
Signed-Off-By: Hans Rosenfeld <hans.rosenfeld@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
The PREEMPT-RCU can get stuck if a CPU goes idle and NO_HZ is set. The
idle CPU will not progress the RCU through its grace period and a
synchronize_rcu my get stuck. Without this patch I have a box that will
not boot when PREEMPT_RCU and NO_HZ are set. That same box boots fine
with this patch.
This patch comes from the -rt kernel where it has been tested for
several months.
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6: (35 commits)
Blackfin Serial Driver: Fix bug - Only insert UART rx char in timer task.
Blackfin Serial Driver: Fix bug - update tx dma buffer tail before wake up processes.
Blackfin Serial Driver: Fix bug - Increase buffer tail immediately before starting tx dma.
[Blackfin] serial driver: Add flow control support to bf54x
[Blackfin] serial driver: Fix bug Poll RTS/CTS status in DMA mode as well
[Blackfin] serial driver: ADSP-BF52x arch/mach support
[Blackfin] serial driver: use simpler comment headers and strip out information that is maintained in the scm's log
[Blackfin] serial driver: rework break flood anomaly handling to be more robust/realistic about what we can actually work around
[Blackfin] serial driver: fix bug - cache the bits of the LSR on systems where the LSR is read-to-clear
[Blackfin] serial driver: fix bug - should not wait for the TFI bit, just clear it when tx stop.
[Blackfin] serial driver: Fix bug serial driver in DMA mode spams history to console on shell restart
[Blackfin] serial driver: Fix bug Free rx dma buffer in shutdown.
[Blackfin] serial driver: Clean up UART DMA code.
Blackfin Serial driver: Fix bug - serial driver in PIO mode cant handle input very quickly
[Blackfin] arch: kill section mismatch warnings
[Blackfin] arch: handle the most common L1 shrinkage case (L1 does not exist for a part) so that any parts labeled for L1 instead get placed into external memory sections
[Blackfin] arch: add bfin_clear_PPIx_STATUS() helper funcs like we have for other parts
[Blackfin] arch: make sure we have proper description/copyright/license lines
[Blackfin] arch: Fix CONFIG_PM support for BF561
[Blackfin] arch: Remove DPMC char driver option
...
This removes code duplication and makes __dec_zone_page_state look like
__inc_zone_page_state.
Signed-off-by: Uwe Kleine-König <Uwe.Kleine-Koenig@digi.com>
Acked-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6:
arch/sh/drivers/dma/dma-sh.c: Correct use of ! and &
serial: Move asm-sh/sci.h to linux/serial_sci.h.
sh: Fix up HAS_SR_RB typo in entry-macros.
maple: fix device detection
sh: fix rtc_resources setup for sh770x
sh: heartbeat: ioremap is expected to succeed
sh: Storage class should be before const qualifier
maple: remove unused variable
sh: SH5-103 needs to select CPU_SH5.
sh: Rename SH-3 CCR3 reg to avoid synclink_cs clash.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (79 commits)
[X25]: Use proc_create() to setup ->proc_fops first
[WANROUTER]: Use proc_create() to setup ->proc_fops first
[8021Q]: Use proc_create() to setup ->proc_fops first
[IPV4]: Use proc_create() to setup ->proc_fops first
[IPV6]: Use proc_create() to setup ->proc_fops first
[SCTP]: Use proc_create() to setup ->proc_fops first
[PKTGEN]: Use proc_create() to setup ->proc_fops first
[NEIGHBOUR]: Use proc_create() to setup ->proc_fops first
[LLC]: Use proc_create() to setup ->proc_fops first
[IPX]: Use proc_create() to setup ->proc_fops first
[SUNRPC]: Use proc_create() to setup ->proc_fops first
[ATM]: Use proc_create() to setup ->proc_fops first
[SCTP]: Update AUTH structures to match declarations in draft-16.
[SCTP]: Incorrect length was used in SCTP_*_AUTH_CHUNKS socket option
[SCTP]: Clean up naming conventions of sctp protocol/address family registration
[APPLETALK]: Use proc_create() to setup ->proc_fops first
[BNX2X]: add bnx2x to MAINTAINERS
[BNX2X]: update version, remove CVS strings
[BNX2X]: Fix Xmit bugs
[BNX2X]: Prevent PCI queue overflow
...
I overlooked the difference between __kernel_uid_t and uid_t when defining
struct compat_elf_prpsinfo. The result is a regression in 32-bit core
dumps on x86_64, where the NT_PRPSINFO note has the wrong size and layout.
This patch fixes it.
Signed-off-by: Roland McGrath <roland@redhat.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Change xfrm_policy and xfrm_state walking algorithm from O(n^2) to O(n).
This is achieved adding the entries to one more list which is used
solely for walking the entries.
This also fixes some races where the dump can have duplicate or missing
entries when the SPD/SADB is modified during an ongoing dump.
Dumping SADB with 20000 entries using "time ip xfrm state" the sys
time dropped from 1.012s to 0.080s.
Signed-off-by: Timo Teras <timo.teras@iki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
Skip the prefix length matching in source address selection for
orchid -> non-orchid addresses.
Overlay Routable Cryptographic Hash IDentifiers (RFC 4843,
2001:10::/28) are currenty not globally reachable. Without this
check a host with an ORCHID address can end up preferring those over
regular addresses when talking to other regular hosts in the 2001::/16
range thus breaking non-orchid connections.
Signed-off-by: Juha-Matti Tapio <jmtapio@verkkotelakka.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add namespace parameter to devinet_ioctl and locate device inside it for
state changes.
Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
The new SCTP socket api (draft 16) updates the AUTH API structures.
We never exported these since we knew they would change.
Update the rest to match the draft.
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Properly add parens around the macro argument. This is not needed by
the kernel but the macro is exported to userspace, so it shouldn't
make any assumptions.
Also use NF_VERDICT_BITS instead of NF_VERDICT_QBTIS for the left-shift
since thats whats logically correct.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext4: add missing ext4_journal_stop()
ext4: ext4_find_next_zero_bit needs an aligned address on some arch
ext4: set EXT4_EXTENTS_FL only for directory and regular files
ext4: Don't mark filesystem error if fallocate fails
ext4: Fix BUG when writing to an unitialized extent
ext4: Don't use ext4_dec_count() if not needed
ext4: modify block allocation algorithm for the last group
ext4: Don't claim block from group which has corrupt bitmap
ext4: Get journal write access before modifying the extent tree
ext4: Fix memory and buffer head leak in callers to ext4_ext_find_extent()
ext4: Don't leave behind a half-created inode if ext4_mkdir() fails
ext4: Fix kernel BUG at fs/ext4/mballoc.c:910!
ext4: Fix locking hierarchy violation in ext4_fallocate()
Remove incorrect BKL comments in ext4
* 'v2.6.25-rc3-lockdep' of git://git.kernel.org/pub/scm/linux/kernel/git/peterz/linux-2.6-lockdep:
Subject: lockdep: include all lock classes in all_lock_classes
lockdep: increase MAX_LOCK_DEPTH
* git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86: (24 commits)
x86: no robust/pi futex for real i386 CPUs
x86: fix boot failure on 486 due to TSC breakage
x86: fix build on non-C locales.
x86: make c_idle.work have a static address.
x86: don't save unreliable stack trace entries
x86: don't make swapper_pg_pmd global
x86: don't print a warning when MTRR are blank and running in KVM
x86: fix execve with -fstack-protect
x86: fix vsyscall wreckage
x86: rename KERNEL_TEXT_SIZE => KERNEL_IMAGE_SIZE
x86: fix spontaneous reboot with allyesconfig bzImage
x86: remove double-checking empty zero pages debug
x86: notsc is ignored on common configurations
x86/mtrr: fix kernel-doc missing notation
x86: handle BIOSes which terminate e820 with CF=1 and no SMAP
x86: add comments for NOPs
x86: don't use P6_NOPs if compiling with CONFIG_X86_GENERIC
x86: require family >= 6 if we are using P6 NOPs
x86: do not promote TM3x00/TM5x00 to i686-class
x86: hpet fix docbook comment
...
Real i386 CPUs do not have cmpxchg instructions. Catch it before
crashing on an invalid opcode.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
The KERNEL_TEXT_SIZE constant was mis-named, as we not only map the kernel
text but data, bss and init sections as well.
That name led me on the wrong path with the KERNEL_TEXT_SIZE regression,
because i knew how big of _text_ my images have and i knew about the 40 MB
"text" limit so i wrongly thought to be on the safe side of the 40 MB limit
with my 29 MB of text, while the total image size was slightly above 40 MB.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
recently the 64-bit allyesconfig bzImage kernel started spontaneously
rebooting during early bootup.
after a few fun hours spent with early init debugging, it turns out
that we've got this rather annoying limit on the size of the kernel
image:
#define KERNEL_TEXT_SIZE (40*1024*1024)
which limit my vmlinux just happened to pass:
text data bss dec hex filename
29703744 4222751 8646224 42572719 2899baf vmlinux
40 MB is 42572719 bytes, so my vmlinux was just 1.5% above this limit :-/
So it happily crashed right in head_64.S, which - as we all know - is
the most debuggable code in the whole architecture ;-)
So increase the limit to allow an up to 128MB kernel image to be mapped.
(should anyone be that crazy or lazy)
We have a full 4K of pagetable (level2_kernel_pgt) allocated for these
mappings already, so there's no RAM overhead and the limit was rather
pointless and arbitrary.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Add comments describing the various NOP sequences.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
The P6 family of NOPs are only available on family >= 6 or above, so
enforce that in the boot code.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Added a declaration to asm-x86/lguest.h and moved the extern arrays there
as well. As an alternative to including asm/lguest.h directly, an
include could be put in linux/lguest.h
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: "rusty@rustcorp.com.au" <rusty@rustcorp.com.au>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This header is needed on other architectures as well (namely h8300),
which currently fails to build without this in place. Rather than
duplicating the port definition completely there, just move this to a
common location instead.
This should get h8300 working again for 2.6.25, in addition to the
changes already pushed by Sato-san in -rc2.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Remove an unused variable from the definition of struct maple_device
Signed-off-by: Adrian McMenamin <adrian@mcmen.demon.co.uk>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Some code paths exceed the current max lock depth (XFS), so increase
this limit a bit. I looked at making this a dynamic allocated array,
but we should not advocate insane lock depths, so stay with this as
long as it works...
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Avoids sparse warnings:
kernel/sched.c:2170:17: warning: symbol 'schedule_tail' was not declared. Should it be static?
Avoids the need for an external declaration in arch/um/process.c
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
drivers/char/pcmcia/synclink_cs.c:284:1: warning: "CCR3" redefined
In file included from include/asm/cache.h:13,
from include/asm/processor_32.h:15,
from include/asm/processor.h:60,
from include/linux/prefetch.h:14,
from include/linux/list.h:8,
from include/linux/module.h:9,
from drivers/char/pcmcia/synclink_cs.c:38:
include/asm/cpu/cache.h:38:1: warning: this is the location of the previous definition
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Don't require platform code to be #ifdeffed according to whether
I2C is enabled or not ... if it's not enabled, let GCC compile out
all I2C device declarations. (Issue noted on an NSLU2 build that
didn't configure I2C.)
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Commit 8b798c4d16 broke
alchemy build, fix it. Pointed out by Adrian Bunk.
Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
The C99 specification states in section 6.11.5:
The placement of a storage-class specifier other than at the
beginning of the declaration specifiers in a declaration is an
obsolescent feature.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
This is needed by the to be added I_T reset function in aic94xx. It
needs to know the local phy so it can send a link or hard reset along
the path.
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
libata-core: fix kernel-doc warning
sata_fsl: fix build with ATA_VERBOSE_DEBUG
[libata] ahci: AMD SB700/SB800 SATA support 64bit DMA
libata-pmp: clear hob for pmp register accesses
libata: automatically use DMADIR if drive/bridge requires it
power_state: get rid of write-only variable in SATA
pata_atiixp: Use 255 sector limit
Back in 2.6.17-rc2, a libata module parameter was added for atapi_dmadir.
That's nice, but most SATA devices which need it will tell us about it
in their IDENTIFY PACKET response, as bit-15 of word-62 of the
returned data (as per ATA7, ATA8 specifications).
So for those which specify it, we should automatically use the DMADIR bit.
Otherwise, disc writing will fail by default on many SATA-ATAPI drives.
This patch adds ATA_DFLAG_DMADIR and make ata_dev_configure() set it
if atapi_dmadir is set or identify data indicates DMADIR is necessary.
atapi_xlat() is converted to check ATA_DFLAG_DMADIR before setting
DMADIR.
Original patch is from Mark Lord.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Cc: Mark Lord <mlord@pobox.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
