Eric Lee / smarc-fsl-linux-kernel

25 Feb, 2010

1 commit

  • a898def29   net: Add checking to rcu_dereference() primitives ... Browse Code »

    Update rcu_dereference() primitives to use new lockdep-based
    checking. The rcu_dereference() in __in6_dev_get() may be
    protected either by rcu_read_lock() or RTNL, per Eric Dumazet.
    The rcu_dereference() in __sk_free() is protected by the fact
    that it is never reached if an update could change it. Check
    for this by using rcu_dereference_check() to verify that the
    struct sock's ->sk_wmem_alloc counter is zero.

    Acked-by: Eric Dumazet
    Acked-by: David S. Miller
    Signed-off-by: Paul E. McKenney
    Cc: laijs@cn.fujitsu.com
    Cc: dipankar@in.ibm.com
    Cc: mathieu.desnoyers@polymtl.ca
    Cc: josh@joshtriplett.org
    Cc: dvhltc@us.ibm.com
    Cc: niv@us.ibm.com
    Cc: peterz@infradead.org
    Cc: rostedt@goodmis.org
    Cc: Valdis.Kletnieks@vt.edu
    Cc: dhowells@redhat.com
    LKML-Reference:
    Signed-off-by: Ingo Molnar

    Paul E. McKenney
     

08 Dec, 2009

1 commit

  • d7fc02c7b   Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 ... Browse Code »

    * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1815 commits)
    mac80211: fix reorder buffer release
    iwmc3200wifi: Enable wimax core through module parameter
    iwmc3200wifi: Add wifi-wimax coexistence mode as a module parameter
    iwmc3200wifi: Coex table command does not expect a response
    iwmc3200wifi: Update wiwi priority table
    iwlwifi: driver version track kernel version
    iwlwifi: indicate uCode type when fail dump error/event log
    iwl3945: remove duplicated event logging code
    b43: fix two warnings
    ipw2100: fix rebooting hang with driver loaded
    cfg80211: indent regulatory messages with spaces
    iwmc3200wifi: fix NULL pointer dereference in pmkid update
    mac80211: Fix TX status reporting for injected data frames
    ath9k: enable 2GHz band only if the device supports it
    airo: Fix integer overflow warning
    rt2x00: Fix padding bug on L2PAD devices.
    WE: Fix set events not propagated
    b43legacy: avoid PPC fault during resume
    b43: avoid PPC fault during resume
    tcp: fix a timewait refcnt race
    ...

    Fix up conflicts due to sysctl cleanups (dead sysctl_check code and
    CTL_UNNUMBERED removed) in
    kernel/sysctl_check.c
    net/ipv4/sysctl_net_ipv4.c
    net/ipv6/addrconf.c
    net/sctp/sysctl.c

    Linus Torvalds
     

04 Dec, 2009

1 commit

  • e9c5158ac   net: Allow fib_rule_unregister to batch ... Browse Code »

    Refactor the code so fib_rules_register always takes a template instead
    of the actual fib_rules_ops structure that will be used. This is
    required for network namespace support so 2 out of the 3 callers already
    do this, it allows the error handling to be made common, and it allows
    fib_rules_unregister to free the template for hte caller.

    Modify fib_rules_unregister to use call_rcu instead of syncrhonize_rcu
    to allw multiple namespaces to be cleaned up in the same rcu grace
    period.

    Signed-off-by: Eric W. Biederman
    Signed-off-by: David S. Miller

    Eric W. Biederman
     

30 Nov, 2009

1 commit

26 Nov, 2009

1 commit

  • 09ad9bc75   net: use net_eq to compare nets ... Browse Code »

    Generated with the following semantic patch

    @@
    struct net *n1;
    struct net *n2;
    @@
    - n1 == n2
    + net_eq(n1, n2)

    @@
    struct net *n1;
    struct net *n2;
    @@
    - n1 != n2
    + !net_eq(n1, n2)

    applied over {include,net,drivers/net}.

    Signed-off-by: Octavian Purdila
    Signed-off-by: David S. Miller

    Octavian Purdila
     

12 Nov, 2009

3 commits

  • f8572d8f2   sysctl net: Remove unused binary sysctl code ... Browse Code »

    Now that sys_sysctl is a compatiblity wrapper around /proc/sys
    all sysctl strategy routines, and all ctl_name and strategy
    entries in the sysctl tables are unused, and can be
    revmoed.

    In addition neigh_sysctl_register has been modified to no longer
    take a strategy argument and it's callers have been modified not
    to pass one.

    Cc: "David Miller"
    Cc: Hideaki YOSHIFUJI
    Cc: netdev@vger.kernel.org
    Signed-off-by: Eric W. Biederman

    Eric W. Biederman
     
  • e5c140a34   decnet: convert dndev_lock to spinlock ... Browse Code »

    There is no reason for this lock to be reader/writer since
    the reader only has lock held for a very brief period.
    The overhead of read_lock is more expensive than spinlock.

    Compile tested only, I am not a decnet user.

    Signed-off-by: Stephen Hemminger
    Signed-off-by: David S. Miller

    stephen hemminger
     
  • 41bdecf17   decnet: add RTNL lock when reading address list ... Browse Code »

    Add missing locking in the case of auto binding to the
    default device. The address list might change while this code is looking
    at the list.

    Compile tested only, I am not a decnet user.

    Signed-off-by: Stephen Hemminger
    Signed-off-by: David S. Miller

    stephen hemminger
     

11 Nov, 2009

1 commit

06 Nov, 2009

3 commits

05 Nov, 2009

1 commit

04 Nov, 2009

1 commit

  • c6d14c845   net: Introduce for_each_netdev_rcu() iterator ... Browse Code »

    Adds RCU management to the list of netdevices.

    Convert some for_each_netdev() users to RCU version, if
    it can avoid read_lock-ing dev_base_lock

    Ie:
    read_lock(&dev_base_loack);
    for_each_netdev(net, dev)
    some_action();
    read_unlock(&dev_base_lock);

    becomes :

    rcu_read_lock();
    for_each_netdev_rcu(net, dev)
    some_action();
    rcu_read_unlock();

    Signed-off-by: Eric Dumazet
    Signed-off-by: David S. Miller

    Eric Dumazet
     

21 Oct, 2009

1 commit

  • ea94ff3b5   net: Fix for dst_negative_advice ... Browse Code »

    dst_negative_advice() should check for changed dst and reset
    sk_tx_queue_mapping accordingly. Pass sock to the callers of
    dst_negative_advice.

    (sk_reset_txq is defined just for use by dst_negative_advice. The
    only way I could find to get around this is to move dst_negative_()
    from dst.h to dst.c, include sock.h in dst.c, etc)

    Signed-off-by: Krishna Kumar
    Signed-off-by: David S. Miller

    Krishna Kumar
     

07 Oct, 2009

1 commit

01 Oct, 2009

1 commit

  • b7058842c   net: Make setsockopt() optlen be unsigned. ... Browse Code »

    This provides safety against negative optlen at the type
    level instead of depending upon (sometimes non-trivial)
    checks against this sprinkled all over the the place, in
    each and every implementation.

    Based upon work done by Arjan van de Ven and feedback
    from Linus Torvalds.

    Signed-off-by: David S. Miller

    David S. Miller
     

24 Sep, 2009

1 commit

  • 8d65af789   sysctl: remove "struct file *" argument of ->proc_handler ... Browse Code »

    It's unused.

    It isn't needed -- read or write flag is already passed and sysctl
    shouldn't care about the rest.

    It _was_ used in two places at arch/frv for some reason.

    Signed-off-by: Alexey Dobriyan
    Cc: David Howells
    Cc: "Eric W. Biederman"
    Cc: Al Viro
    Cc: Ralf Baechle
    Cc: Martin Schwidefsky
    Cc: Ingo Molnar
    Cc: "David S. Miller"
    Cc: James Morris
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Alexey Dobriyan
     

22 Sep, 2009

1 commit

  • 4481374ce   mm: replace various uses of num_physpages by totalram_pages ... Browse Code »

    Sizing of memory allocations shouldn't depend on the number of physical
    pages found in a system, as that generally includes (perhaps a huge amount
    of) non-RAM pages. The amount of what actually is usable as storage
    should instead be used as a basis here.

    Some of the calculations (i.e. those not intending to use high memory)
    should likely even use (totalram_pages - totalhigh_pages).

    Signed-off-by: Jan Beulich
    Acked-by: Rusty Russell
    Acked-by: Ingo Molnar
    Cc: Dave Airlie
    Cc: Kyle McMartin
    Cc: Jeremy Fitzhardinge
    Cc: Pekka Enberg
    Cc: Hugh Dickins
    Cc: "David S. Miller"
    Cc: Patrick McHardy
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Jan Beulich
     

02 Sep, 2009

1 commit

06 Jul, 2009

1 commit

27 Jun, 2009

1 commit

  • 10e854480   decnet: Use rcu_barrier() on module unload. ... Browse Code »

    The decnet module unloading as been disabled with a '#if 0' statement,
    because it have had issues.

    We add a rcu_barrier() anyhow for correctness.

    The maintainer (Chrissie Caulfield) will look into the unload issue
    when time permits.

    Acked-by: Paul E. McKenney
    Acked-by: Chrissie Caulfield
    Signed-off-by: Jesper Dangaard Brouer
    Signed-off-by: David S. Miller

    Jesper Dangaard Brouer
     

18 Jun, 2009

1 commit

  • 31e6d363a   net: correct off-by-one write allocations reports ... Browse Code »

    commit 2b85a34e911bf483c27cfdd124aeb1605145dc80
    (net: No more expensive sock_hold()/sock_put() on each tx)
    changed initial sk_wmem_alloc value.

    We need to take into account this offset when reporting
    sk_wmem_alloc to user, in PROC_FS files or various
    ioctls (SIOCOUTQ/TIOCOUTQ)

    Signed-off-by: Eric Dumazet
    Signed-off-by: David S. Miller

    Eric Dumazet
     

03 Jun, 2009

1 commit

  • adf30907d   net: skb->dst accessors ... Browse Code »

    Define three accessors to get/set dst attached to a skb

    struct dst_entry *skb_dst(const struct sk_buff *skb)

    void skb_dst_set(struct sk_buff *skb, struct dst_entry *dst)

    void skb_dst_drop(struct sk_buff *skb)
    This one should replace occurrences of :
    dst_release(skb->dst)
    skb->dst = NULL;

    Delete skb->dst field

    Signed-off-by: Eric Dumazet
    Signed-off-by: David S. Miller

    Eric Dumazet
     

29 May, 2009

1 commit

21 May, 2009

1 commit

18 May, 2009

1 commit

10 May, 2009

1 commit

22 Mar, 2009

1 commit

  • a0bffffc1   net/*: use linux/kernel.h swap() ... Browse Code »

    tcp_sack_swap seems unnecessary so I pushed swap to the caller.
    Also removed comment that seemed then pointless, and added include
    when not already there. Compile tested.

    Signed-off-by: Ilpo Järvinen
    Signed-off-by: David S. Miller

    Ilpo Järvinen
     

10 Mar, 2009

1 commit

27 Feb, 2009

3 commits

  • e57c624be   decnet: fix sparse warnings: symbol shadows an earlier one ... Browse Code »

    Impact: Remove redundant variable declarations, resp. rename
    inner scope variable.

    Fix this sparse warnings:
    net/decnet/af_decnet.c:1252:40: warning: symbol 'skb' shadows an earlier one
    net/decnet/af_decnet.c:1223:24: originally declared here
    net/decnet/af_decnet.c:1582:29: warning: symbol 'val' shadows an earlier one
    net/decnet/af_decnet.c:1527:22: originally declared here
    net/decnet/dn_dev.c:687:21: warning: symbol 'err' shadows an earlier one
    net/decnet/dn_dev.c:670:13: originally declared here
    net/decnet/sysctl_net_decnet.c:182:21: warning: symbol 'len' shadows an earlier one
    net/decnet/sysctl_net_decnet.c:173:16: originally declared here

    Signed-off-by: Hannes Eder
    Signed-off-by: David S. Miller

    Hannes Eder
     
  • 8521c27ee   decnet: fix sparse warnings: context imbalance ... Browse Code »

    Impact: Attribute functions with __acquires(...) resp. __releases(...).

    Fix this sparse warnings:
    net/decnet/dn_dev.c:1324:13: warning: context imbalance in 'dn_dev_seq_start' - wrong count at exit
    net/decnet/dn_dev.c:1366:13: warning: context imbalance in 'dn_dev_seq_stop' - unexpected unlock

    Signed-off-by: Hannes Eder
    Signed-off-by: David S. Miller

    Hannes Eder
     
  • db849df63   decnet: remove some pointless conditionals before kfree_skb() ... Browse Code »

    Remove some pointless conditionals before kfree_skb().

    Signed-off-by: Wei Yongjun
    Signed-off-by: David S. Miller

    Wei Yongjun
     

25 Feb, 2009

1 commit

  • 1ce85fe40   netlink: change nlmsg_notify() return value logic ... Browse Code »

    This patch changes the return value of nlmsg_notify() as follows:

    If NETLINK_BROADCAST_ERROR is set by any of the listeners and
    an error in the delivery happened, return the broadcast error;
    else if there are no listeners apart from the socket that
    requested a change with the echo flag, return the result of the
    unicast notification. Thus, with this patch, the unicast
    notification is handled in the same way of a broadcast listener
    that has set the NETLINK_BROADCAST_ERROR socket flag.

    This patch is useful in case that the caller of nlmsg_notify()
    wants to know the result of the delivery of a netlink notification
    (including the broadcast delivery) and take any action in case
    that the delivery failed. For example, ctnetlink can drop packets
    if the event delivery failed to provide reliable logging and
    state-synchronization at the cost of dropping packets.

    This patch also modifies the rtnetlink code to ignore the return
    value of rtnl_notify() in all callers. The function rtnl_notify()
    (before this patch) returned the error of the unicast notification
    which makes rtnl_set_sk_err() reports errors to all listeners. This
    is not of any help since the origin of the change (the socket that
    requested the echoing) notices the ENOBUFS error if the notification
    fails and should resync itself.

    Signed-off-by: Pablo Neira Ayuso
    Acked-by: Patrick McHardy
    Signed-off-by: David S. Miller

    Pablo Neira Ayuso
     

01 Feb, 2009

1 commit

11 Dec, 2008

1 commit

27 Nov, 2008

1 commit

26 Nov, 2008

1 commit

  • 52479b623   netns xfrm: lookup in netns ... Browse Code »

    Pass netns to xfrm_lookup()/__xfrm_lookup(). For that pass netns
    to flow_cache_lookup() and resolver callback.

    Take it from socket or netdevice. Stub DECnet to init_net.

    Signed-off-by: Alexey Dobriyan
    Signed-off-by: David S. Miller

    Alexey Dobriyan
     

22 Nov, 2008

1 commit

12 Nov, 2008

1 commit