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vlan_info might be present but still no vlan devices might be there.
That is in case of vlan0 automatically added.
So in that case, allow to change netdev type.
Reported-by: Jon Stanley <jstanley@rmrf.net>
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Threads in the bottom half of batadv_bla_check_bcast_duplist() might
otherwise for instance overwrite variables which other threads might
be using/reading at the same time in the top half, potentially
leading to messing up the bcast_duplist, possibly resulting in false
bridge loop avoidance duplicate check decisions.
Signed-off-by: Linus Lüssing <linus.luessing@web.de>
Acked-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
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So far the crc16 checksum for a batman-adv broadcast data packet, received
on a batman-adv hard interface, was calculated over zero bytes of its
content leading to many incoming broadcast data packets wrongly being
dropped (60-80% packet loss).
This patch fixes this issue by calculating the crc16 over the actual,
complete broadcast payload.
The issue is a regression introduced by
("batman-adv: add broadcast duplicate check").
Signed-off-by: Linus Lüssing <linus.luessing@web.de>
Acked-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
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A few places touch chan->max_power based on updated tx power rules, but
forget to do the same to chan->max_reg_power.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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No driver initializes chan->max_antenna_gain to something sensible, and
the only place where it is being used right now is inside ath9k. This
leads to ath9k potentially using less tx power than it can use, which can
decrease performance/range in some rare cases.
Rather than going through every single driver, this patch initializes
chan->orig_mag in wiphy_register(), ignoring whatever value the driver
left in there. If a driver for some reason wishes to limit it independent
from regulatory rulesets, it can do so internally.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Cc: stable@vger.kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211
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The buffer size in read_flush() is too small for the longest possible values
for it. This can lead to a kernel stack corruption:
[ 43.047329] Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: ffffffff833e64b4
[ 43.047329]
[ 43.049030] Pid: 6015, comm: trinity-child18 Tainted: G W 3.5.0-rc7-next-20120716-sasha #221
[ 43.050038] Call Trace:
[ 43.050435] [<ffffffff836c60c2>] panic+0xcd/0x1f4
[ 43.050931] [<ffffffff833e64b4>] ? read_flush.isra.7+0xe4/0x100
[ 43.051602] [<ffffffff810e94e6>] __stack_chk_fail+0x16/0x20
[ 43.052206] [<ffffffff833e64b4>] read_flush.isra.7+0xe4/0x100
[ 43.052951] [<ffffffff833e6500>] ? read_flush_pipefs+0x30/0x30
[ 43.053594] [<ffffffff833e652c>] read_flush_procfs+0x2c/0x30
[ 43.053596] [<ffffffff812b9a8c>] proc_reg_read+0x9c/0xd0
[ 43.053596] [<ffffffff812b99f0>] ? proc_reg_write+0xd0/0xd0
[ 43.053596] [<ffffffff81250d5b>] do_loop_readv_writev+0x4b/0x90
[ 43.053596] [<ffffffff81250fd6>] do_readv_writev+0xf6/0x1d0
[ 43.053596] [<ffffffff812510ee>] vfs_readv+0x3e/0x60
[ 43.053596] [<ffffffff812511b8>] sys_readv+0x48/0xb0
[ 43.053596] [<ffffffff8378167d>] system_call_fastpath+0x1a/0x1f
Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Cc: stable@kernel.org
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
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Some changes to fix issues with HT40 APs in Korea
and follow-up changes to allow using HT40 even if
the local regulatory database disallows it caused
issues with iwlwifi (and could cause issues with
other devices); iwlwifi firmware would assert if
you tried to connect to an AP that has an invalid
configuration (e.g. using HT40- on channel 140.)
Fix this, while avoiding the "Korean AP" issue by
disabling HT40 and advertising HT20 to the AP
when connecting.
Cc: stable@vger.kernel.org [3.6]
Reported-by: Florian Reitmeir <florian@reitmeir.org>
Tested-by: Florian Reitmeir <florian@reitmeir.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Torsten Luettgert bisected TEE regression starting with commit
f8126f1d5136be1 (ipv4: Adjust semantics of rt->rt_gateway.)
The problem is that it tries to ARP-lookup the original destination
address of the forwarded packet, not the address of the gateway.
Fix this using FLOWI_FLAG_KNOWN_NH Julian added in commit
c92b96553a80c1 (ipv4: Add FLOWI_FLAG_KNOWN_NH), so that known
nexthop (info->gw.ip) has preference on resolving.
Reported-by: Torsten Luettgert <ml-netfilter@enda.eu>
Bisected-by: Torsten Luettgert <ml-netfilter@enda.eu>
Tested-by: Torsten Luettgert <ml-netfilter@enda.eu>
Cc: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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To obtain new flag FLOWI_FLAG_KNOWN_NH to fix netfilter's xt_TEE target.
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Commit 1d5783030a1 (ipv6/addrconf: speedup /proc/net/if_inet6 filling)
added bugs hiding some devices from if_inet6 and breaking applications.
"ip -6 addr" could still display all IPv6 addresses, while "ifconfig -a"
couldnt.
One way to reproduce the bug is by starting in a shell :
unshare -n /bin/bash
ifconfig lo up
And in original net namespace, lo device disappeared from if_inet6
Reported-by: Jan Hinnerk Stosch <janhinnerk.stosch@gmail.com>
Tested-by: Jan Hinnerk Stosch <janhinnerk.stosch@gmail.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Mihai Maruseac <mihai.maruseac@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Bug introduced by commit edfee0339e681a784ebacec7e8c2dc97dc6d2839
(sctp: check src addr when processing SACK to update transport state)
Signed-off-by: Zijie Pan <zijie.pan@6wind.com>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In vlan_uses_dev() check for number of vlan devs rather than existence
of vlan_info. The reason is that vlan id 0 is there without appropriate
vlan dev on it by default which prevented from enslaving vlan challenged
dev.
Reported-by: Jon Stanley <jstanley@rmrf.net>
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Free tx status skbs when draining power save buffers, pending frames, or
when tearing down a vif.
Fixes remaining conditions that can lead to hostapd/wpa_supplicant hangs when
running out of socket write memory.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Cc: stable@vger.kernel.org
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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This patch fix corruption which can manifest itself by following crash
when switching on rfkill switch with rt2x00 driver:
https://bugzilla.redhat.com/attachment.cgi?id=615362
Pointer key->u.ccmp.tfm of group key get corrupted in:
ieee80211_rx_h_michael_mic_verify():
/* update IV in key information to be able to detect replays */
rx->key->u.tkip.rx[rx->security_idx].iv32 = rx->tkip_iv32;
rx->key->u.tkip.rx[rx->security_idx].iv16 = rx->tkip_iv16;
because rt2x00 always set RX_FLAG_MMIC_STRIPPED, even if key is not TKIP.
We already check type of the key in different path in
ieee80211_rx_h_michael_mic_verify() function, so adding additional
check here is reasonable.
Cc: stable@vger.kernel.org # 3.0+
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth
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Avoid situation when we are on associate state in mac80211 and
on disassociate state in cfg80211. This can results on crash
during modules unload (like showed on this thread:
http://marc.info/?t=134373976300001&r=1&w=2) and possibly other
problems.
Reported-by: Pedro Francisco <pedrogfrancisco@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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In (c7232c9 netfilter: add protocol independent NAT core), the
hooks were accidentally modified:
SNAT hooks are POST_ROUTING and LOCAL_IN (before it was LOCAL_OUT).
DNAT hooks are PRE_ROUTING and LOCAL_OUT (before it was LOCAL_IN).
Signed-off-by: Elison Niven <elison.niven@cyberoam.com>
Signed-off-by: Sanket Shah <sanket.shah@cyberoam.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This patch fixes ip6tables and the CT target if it is used to set
some custom conntrack timeout policy for IPv6.
Use xt_ct_find_proto which already handles the ip6tables case for us.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This syncs up the tty-linus branch to the latest in Linus's tree to get all of
the UAPI stuff needed for the next set of patches to merge.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux
Pull module signing support from Rusty Russell:
"module signing is the highlight, but it's an all-over David Howells frenzy..."
Hmm "Magrathea: Glacier signing key". Somebody has been reading too much HHGTTG.
* 'modules-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: (37 commits)
X.509: Fix indefinite length element skip error handling
X.509: Convert some printk calls to pr_devel
asymmetric keys: fix printk format warning
MODSIGN: Fix 32-bit overflow in X.509 certificate validity date checking
MODSIGN: Make mrproper should remove generated files.
MODSIGN: Use utf8 strings in signer's name in autogenerated X.509 certs
MODSIGN: Use the same digest for the autogen key sig as for the module sig
MODSIGN: Sign modules during the build process
MODSIGN: Provide a script for generating a key ID from an X.509 cert
MODSIGN: Implement module signature checking
MODSIGN: Provide module signing public keys to the kernel
MODSIGN: Automatically generate module signing keys if missing
MODSIGN: Provide Kconfig options
MODSIGN: Provide gitignore and make clean rules for extra files
MODSIGN: Add FIPS policy
module: signature checking hook
X.509: Add a crypto key parser for binary (DER) X.509 certificates
MPILIB: Provide a function to read raw data into an MPI
X.509: Add an ASN.1 decoder
X.509: Add simple ASN.1 grammar compiler
...
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git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
Pull user namespace compile fixes from Eric W Biederman:
"This tree contains three trivial fixes. One compiler warning, one
thinko fix, and one build fix"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
btrfs: Fix compilation with user namespace support enabled
userns: Fix posix_acl_file_xattr_userns gid conversion
userns: Properly print bluetooth socket uids
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Pull nfsd update from J Bruce Fields:
"Another relatively quiet cycle. There was some progress on my
remaining 4.1 todo's, but a couple of them were just of the form
"check that we do X correctly", so didn't have much affect on the
code.
Other than that, a bunch of cleanup and some bugfixes (including an
annoying NFSv4.0 state leak and a busy-loop in the server that could
cause it to peg the CPU without making progress)."
* 'for-3.7' of git://linux-nfs.org/~bfields/linux: (46 commits)
UAPI: (Scripted) Disintegrate include/linux/sunrpc
UAPI: (Scripted) Disintegrate include/linux/nfsd
nfsd4: don't allow reclaims of expired clients
nfsd4: remove redundant callback probe
nfsd4: expire old client earlier
nfsd4: separate session allocation and initialization
nfsd4: clean up session allocation
nfsd4: minor free_session cleanup
nfsd4: new_conn_from_crses should only allocate
nfsd4: separate connection allocation and initialization
nfsd4: reject bad forechannel attrs earlier
nfsd4: enforce per-client sessions/no-sessions distinction
nfsd4: set cl_minorversion at create time
nfsd4: don't pin clientids to pseudoflavors
nfsd4: fix bind_conn_to_session xdr comment
nfsd4: cast readlink() bug argument
NFSD: pass null terminated buf to kstrtouint()
nfsd: remove duplicate init in nfsd4_cb_recall
nfsd4: eliminate redundant nfs4_free_stateid
fs/nfsd/nfs4idmap.c: adjust inconsistent IS_ERR and PTR_ERR
...
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Pull networking updates from David Miller:
1) Alexey Kuznetsov noticed we routed TCP resets improperly in the
assymetric routing case, fix this by reverting a change that made us
use the incoming interface in the outgoing route key when we didn't
have a socket context to work with.
2) TCP sysctl kernel memory leakage to userspace fix from Alan Cox.
3) Move UAPI bits from David Howells, WIMAX and CAN this time.
4) Fix TX stalls in e1000e wrt. Byte Queue Limits, from Hiroaki
SHIMODA, Denys Fedoryshchenko, and Jesse Brandeburg.
5) Fix IPV6 crashes in packet generator module, from Amerigo Wang.
6) Tidies and fixes in the new VXLAN driver from Stephen Hemminger.
7) Bridge IP options parse doesn't check first if SKB header has at
least an IP header's worth of content present. Fix from Sarveshwar
Bandi.
8) The kernel now generates compound pages on transmit and the Xen
netback drivers needs some adjustments in order to handle this. Fix
from Ian Campbell.
9) Turn off ASPM in JME driver, from Kevin Bardon and Matthew Garrett.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (43 commits)
mcs7830: Fix link state detection
net: add doc for in4_pton()
net: add doc for in6_pton()
vti: fix sparse bit endian warnings
tcp: resets are misrouted
usbnet: Support devices reporting idleness
Add CDC-ACM support for the CX93010-2x UCMxx USB Modem
net/ethernet/jme: disable ASPM
tcp: sysctl interface leaks 16 bytes of kernel memory
kaweth: print correct debug ptr
e1000e: Change wthresh to 1 to avoid possible Tx stalls
ipv4: fix route mark sparse warning
xen: netback: handle compound page fragments on transmit.
bridge: Pull ip header into skb->data before looking into ip header.
isdn: fix a wrapping bug in isdn_ppp_ioctl()
vxlan: fix oops when give unknown ifindex
vxlan: fix receive checksum handling
vxlan: add additional headroom
vxlan: allow configuring port range
vxlan: associate with tunnel socket on transmit
...
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With user namespace support enabled building bluetooth generated the warning.
net/bluetooth/af_bluetooth.c: In function ‘bt_seq_show’:
net/bluetooth/af_bluetooth.c:598:7: warning: format ‘%u’ expects argument of type ‘unsigned int’, but argument 7 has type ‘kuid_t’ [-Wformat]
Convert sock_i_uid from a kuid_t to a uid_t before printing, to avoid
this problem.
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Cc: Masatake YAMATO <yamato@redhat.com>
Cc: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
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It is not easy to use in4_pton() correctly without reading
its definition, so add some doc for it.
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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It is not easy to use in6_pton() correctly without reading
its definition, so add some doc for it.
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Use be32_to_cpu instead of htonl to keep sparse happy.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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After commit e2446eaa ("tcp_v4_send_reset: binding oif to iif in no
sock case").. tcp resets are always lost, when routing is asymmetric.
Yes, backing out that patch will result in misrouting of resets for
dead connections which used interface binding when were alive, but we
actually cannot do anything here. What's died that's died and correct
handling normal unbound connections is obviously a priority.
Comment to comment:
> This has few benefits:
> 1. tcp_v6_send_reset already did that.
It was done to route resets for IPv6 link local addresses. It was a
mistake to do so for global addresses. The patch fixes this as well.
Actually, the problem appears to be even more serious than guaranteed
loss of resets. As reported by Sergey Soloviev <sol@eqv.ru>, those
misrouted resets create a lot of arp traffic and huge amount of
unresolved arp entires putting down to knees NAT firewalls which use
asymmetric routing.
Signed-off-by: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
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When sending a pairing request or response we should not just blindly
copy the value that the remote device sent. Instead we should at least
make sure to mask out any unknown bits. This is particularly critical
from the upcoming LE Secure Connections feature perspective as
incorrectly indicating support for it (by copying the remote value)
would cause a failure to pair with devices that support it.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Cc: stable@kernel.org
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
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git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs
Pull v9fs update from Eric Van Hensbergen.
* tag 'for-linus-merge-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs:
9P: Fix race between p9_write_work() and p9_fd_request()
9P: Fix race in p9_write_work()
9P: fix test at the end of p9_write_work()
9P: Fix race in p9_read_work()
9p: don't use __getname/__putname for uname/aname
net/9p: Check errno validity
fs/9p: avoid debug OOPS when reading a long symlink
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If the rc_dereference of tcp_fastopen_ctx ever fails then we copy 16 bytes
of kernel stack into the proc result.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Race scenario:
thread A thread B
p9_write_work() p9_fd_request()
if (list_empty
(&m->unsent_req_list))
...
spin_lock(&client->lock);
req->status = REQ_STATUS_UNSENT;
list_add_tail(..., &m->unsent_req_list);
spin_unlock(&client->lock);
....
if (n & POLLOUT &&
!test_and_set_bit(Wworksched, &m->wsched)
schedule_work(&m->wq);
--> not done because Wworksched is set
clear_bit(Wworksched, &m->wsched);
return;
--> nobody will take care of sending the new request.
This is not very likely to happen though, because p9_write_work()
being called with an empty unsent_req_list is not frequent.
But this also means that taking the lock earlier will not be costly.
Signed-off-by: Simon Derr <simon.derr@bull.net>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
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Merge branch 'bugfixes' of git://linux-nfs.org/~trondmy/nfs-2.6 into
for-3.7-incoming. Mainly needed for Bryan's "SUNRPC: Set alloc_slot for
backchannel tcp ops", without which the 4.1 server oopses.
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Sparse complains about RTA_MARK which is should be host order according
to include file and usage in iproute.
net/ipv4/route.c:2223:46: warning: incorrect type in argument 3 (different base types)
net/ipv4/route.c:2223:46: expected restricted __be32 [usertype] value
net/ipv4/route.c:2223:46: got unsigned int [unsigned] [usertype] flowic_mark
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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If lower layer driver leaves the ip header in the skb fragment, it needs to
be first pulled into skb->data before inspecting ip header length or ip version
number.
Signed-off-by: Sarveshwar Bandi <sarveshwar.bandi@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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It is weird to display IPv4 address in %x format, what's more,
IPv6 address is disaplayed in human-readable format too. So,
make it human-readable.
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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ETH_ZLEN is too small for IPv6, so this default value is not
suitable.
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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For IPv6, sizeof(struct ipv6hdr) = 40, thus the following
expression will result negative:
datalen = pkt_dev->cur_pkt_size - 14 -
sizeof(struct ipv6hdr) - sizeof(struct udphdr) -
pkt_dev->pkt_overhead;
And, the check "if (datalen < sizeof(struct pktgen_hdr))" will be
passed as "datalen" is promoted to unsigned, therefore will cause
a crash later.
This is a quick fix by checking if "datalen" is negative. The following
patch will increase the default value of 'min_pkt_size' for IPv6.
This bug should exist for a long time, so Cc -stable too.
Cc: <stable@vger.kernel.org>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
John W. Linville says:
====================
Here is a batch of fixes intended for 3.7...
Amitkumar Karwar provides a couple of mwifiex fixes to correctly
report some reason codes for certain connection failures. He also
provides a fix to cleanup after a scanning failure. Bing Zhao rounds
that out with another mwifiex scanning fix.
Daniel Golle gives us a fix for a copy/paste error in rt2x00.
Felix Fietkau brings a couple of ath9k fixes related to suspend/resume,
and a couple of fixes to prevent memory leaks in ath9k and mac80211.
Ronald Wahl sends a carl9170 fix for a sleep in softirq context.
Thomas Pedersen reorders some code to prevent drv_get_tsf from being
called while holding a spinlock, now that it can sleep.
Finally, Wei Yongjun prevents a NULL pointer dereference in the
ath5k driver.
Please let me know if there are problems!
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull NFS client updates from Trond Myklebust:
"Features include:
- Remove CONFIG_EXPERIMENTAL dependency from NFSv4.1
Aside from the issues discussed at the LKS, distros are shipping
NFSv4.1 with all the trimmings.
- Fix fdatasync()/fsync() for the corner case of a server reboot.
- NFSv4 OPEN access fix: finally distinguish correctly between
open-for-read and open-for-execute permissions in all situations.
- Ensure that the TCP socket is closed when we're in CLOSE_WAIT
- More idmapper bugfixes
- Lots of pNFS bugfixes and cleanups to remove unnecessary state and
make the code easier to read.
- In cases where a pNFS read or write fails, allow the client to
resume trying layoutgets after two minutes of read/write-
through-mds.
- More net namespace fixes to the NFSv4 callback code.
- More net namespace fixes to the NFSv3 locking code.
- More NFSv4 migration preparatory patches.
Including patches to detect network trunking in both NFSv4 and
NFSv4.1
- pNFS block updates to optimise LAYOUTGET calls."
* tag 'nfs-for-3.7-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (113 commits)
pnfsblock: cleanup nfs4_blkdev_get
NFS41: send real read size in layoutget
NFS41: send real write size in layoutget
NFS: track direct IO left bytes
NFSv4.1: Cleanup ugliness in pnfs_layoutgets_blocked()
NFSv4.1: Ensure that the layout sequence id stays 'close' to the current
NFSv4.1: Deal with seqid wraparound in the pNFS return-on-close code
NFSv4 set open access operation call flag in nfs4_init_opendata_res
NFSv4.1: Remove the dependency on CONFIG_EXPERIMENTAL
NFSv4 reduce attribute requests for open reclaim
NFSv4: nfs4_open_done first must check that GETATTR decoded a file type
NFSv4.1: Deal with wraparound when updating the layout "barrier" seqid
NFSv4.1: Deal with wraparound issues when updating the layout stateid
NFSv4.1: Always set the layout stateid if this is the first layoutget
NFSv4.1: Fix another refcount issue in pnfs_find_alloc_layout
NFSv4: don't put ACCESS in OPEN compound if O_EXCL
NFSv4: don't check MAY_WRITE access bit in OPEN
NFS: Set key construction data for the legacy upcall
NFSv4.1: don't do two EXCHANGE_IDs on mount
NFS: nfs41_walk_client_list(): re-lock before iterating
...
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If ceph_fault() is unable to queue work after a delay, it sets the
BACKOFF connection flag so con_work() will attempt to do so.
In con_work(), when BACKOFF is set, if queue_delayed_work() doesn't
result in newly-queued work, it simply ignores this condition and
proceeds as if no backoff delay were desired. There are two
problems with this--one of which is a bug.
The first problem is simply that the intended behavior is to back
off, and if we aren't able queue the work item to run after a delay
we're not doing that.
The only reason queue_delayed_work() won't queue work is if the
provided work item is already queued. In the messenger, this
means that con_work() is already scheduled to be run again. So
if we simply set the BACKOFF flag again when this occurs, we know
the next con_work() call will again attempt to hold off activity
on the connection until after the delay.
The second problem--the bug--is a leak of a reference count. If
queue_delayed_work() returns 0 in con_work(), con->ops->put() drops
the connection reference held on entry to con_work(). However,
processing is (was) allowed to continue, and at the end of the
function a second con->ops->put() is called.
This patch fixes both problems.
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
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This is to complete part of the Userspace API (UAPI) disintegration for which
the preparatory patches were pulled recently. After these patches, userspace
headers will be segregated into:
include/uapi/linux/.../foo.h
for the userspace interface stuff, and:
include/linux/.../foo.h
for the strictly kernel internal stuff.
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
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This is the revised patch for fixing rds-ping spinlock recursion
according to Venkat's suggestions.
RDS ping/pong over TCP feature has been broken for years(2.6.39 to
3.6.0) since we have to set TCP cork and call kernel_sendmsg() between
ping/pong which both need to lock "struct sock *sk". However, this
lock has already been hold before rds_tcp_data_ready() callback is
triggerred. As a result, we always facing spinlock resursion which
would resulting in system panic.
Given that RDS ping is only used to test the connectivity and not for
serious performance measurements, we can queue the pong transmit to
rds_wq as a delayed response.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
CC: Venkat Venkatsubra <venkat.x.venkatsubra@oracle.com>
CC: David S. Miller <davem@davemloft.net>
CC: James Morris <james.l.morris@oracle.com>
Signed-off-by: Jie Liu <jeff.liu@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pulled mainline in order to get the UAPI infrastructure already
merged before I pull in David Howells's UAPI trees for networking.
Signed-off-by: David S. Miller <davem@davemloft.net>
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Empty nodes have no color. We can make use of this property to simplify
the code emitted by the RB_EMPTY_NODE and RB_CLEAR_NODE macros. Also,
we can get rid of the rb_init_node function which had been introduced by
commit 88d19cf37952 ("timers: Add rb_init_node() to allow for stack
allocated rb nodes") to avoid some issue with the empty node's color not
being initialized.
I'm not sure what the RB_EMPTY_NODE checks in rb_prev() / rb_next() are
doing there, though. axboe introduced them in commit 10fd48f2376d
("rbtree: fixed reversed RB_EMPTY_NODE and rb_next/prev"). The way I
see it, the 'empty node' abstraction is only used by rbtree users to
flag nodes that they haven't inserted in any rbtree, so asking the
predecessor or successor of such nodes doesn't make any sense.
One final rb_init_node() caller was recently added in sysctl code to
implement faster sysctl name lookups. This code doesn't make use of
RB_EMPTY_NODE at all, and from what I could see it only called
rb_init_node() under the mistaken assumption that such initialization was
required before node insertion.
[sfr@canb.auug.org.au: fix net/ceph/osd_client.c build]
Signed-off-by: Michel Lespinasse <walken@google.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Acked-by: David Woodhouse <David.Woodhouse@intel.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Daniel Santos <daniel.santos@pobox.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: John Stultz <john.stultz@linaro.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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As reported by a gcc warning, the do_ip_vs_get_ctl does not initalize
all the members of the ip_vs_timeout_user structure it returns if
at least one of the TCP or UDP protocols is disabled for ipvs.
This makes sure that the data is always initialized, before it is
returned as a response to IPVS_CMD_GET_CONFIG or printed as a
debug message in IPVS_CMD_SET_CONFIG.
Without this patch, building ARM ixp4xx_defconfig results in:
net/netfilter/ipvs/ip_vs_ctl.c: In function 'ip_vs_genl_set_cmd':
net/netfilter/ipvs/ip_vs_ctl.c:2238:47: warning: 't.udp_timeout' may be used uninitialized in this function [-Wuninitialized]
net/netfilter/ipvs/ip_vs_ctl.c:3322:28: note: 't.udp_timeout' was declared here
net/netfilter/ipvs/ip_vs_ctl.c:2238:47: warning: 't.tcp_fin_timeout' may be used uninitialized in this function [-Wuninitialized]
net/netfilter/ipvs/ip_vs_ctl.c:3322:28: note: 't.tcp_fin_timeout' was declared here
net/netfilter/ipvs/ip_vs_ctl.c:2238:47: warning: 't.tcp_timeout' may be used uninitialized in this function [-Wuninitialized]
net/netfilter/ipvs/ip_vs_ctl.c:3322:28: note: 't.tcp_timeout' was declared here
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
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