Eric Lee / smarc-fsl-linux-kernel

27 Jul, 2011

1 commit

  • 60063497a   atomic: use <linux/atomic.h> ... Browse Code »

    This allows us to move duplicated code in
    (atomic_inc_not_zero() for now) to

    Signed-off-by: Arun Sharma
    Reviewed-by: Eric Dumazet
    Cc: Ingo Molnar
    Cc: David Miller
    Cc: Eric Dumazet
    Acked-by: Mike Frysinger
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Arun Sharma
     

06 May, 2011

1 commit

  • 1c5cae815   net: call dev_alloc_name from register_netdevice ... Browse Code »
    2

    Force dev_alloc_name() to be called from register_netdevice() by
    dev_get_valid_name(). That allows to remove multiple explicit
    dev_alloc_name() calls.

    The possibility to call dev_alloc_name in advance remains.

    This also fixes veth creation regresion caused by
    84c49d8c3e4abefb0a41a77b25aa37ebe8d6b743

    Signed-off-by: Jiri Pirko
    Signed-off-by: David S. Miller

    Jiri Pirko
     

04 May, 2011

1 commit

23 Apr, 2011

1 commit

13 Mar, 2011

3 commits

11 Mar, 2011

2 commits

03 Mar, 2011

2 commits

09 Dec, 2010

1 commit

02 Dec, 2010

1 commit

  • 381601e5b   Make the ip6_tunnel reflect the true mtu. ... Browse Code »

    The ip6_tunnel always assumes it consumes 40 bytes (ip6 hdr) of the mtu of the
    underlaying device. So for a normal ethernet bearer, the mtu of the ip6_tunnel is
    1460.
    However, when creating a tunnel the encap limit option is enabled by default, and it
    consumes 8 bytes more, so the true mtu shall be 1452.

    I dont really know if this breaks some statement in some RFC, so this is a request for
    comments.

    Signed-off-by: Anders Franzen
    Signed-off-by: David S. Miller

    Anders Franzen
     

29 Nov, 2010

1 commit

  • d3c15cab2   ipv6: kill two unused macro definition ... Browse Code »

    1. IPV6_TLV_TEL_DST_SIZE
    This has not been using for several years since created.

    2. RT6_INFO_LEN
    commit 33120b30 kill all RT6_INFO_LEN's references, but only this definition remained.

    commit 33120b30cc3b8665204d4fcde7288638b0dd04d5
    Author: Alexey Dobriyan
    Date: Tue Nov 6 05:27:11 2007 -0800

    [IPV6]: Convert /proc/net/ipv6_route to seq_file interface

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

    Shan Wei
     

28 Oct, 2010

1 commit

  • 74b0b85b8   tunnels: Fix tunnels change rcu protection ... Browse Code »

    After making rcu protection for tunnels (ipip, gre, sit and ip6) a bug
    was introduced into the SIOCCHGTUNNEL code.

    The tunnel is first unlinked, then addresses change, then it is linked
    back probably into another bucket. But while changing the parms, the
    hash table is unlocked to readers and they can lookup the improper tunnel.

    Respective commits are b7285b79 (ipip: get rid of ipip_lock), 1507850b
    (gre: get rid of ipgre_lock), 3a43be3c (sit: get rid of ipip6_lock) and
    94767632 (ip6tnl: get rid of ip6_tnl_lock).

    The quick fix is to wait for quiescent state to pass after unlinking,
    but if it is inappropriate I can invent something better, just let me
    know.

    Signed-off-by: Pavel Emelyanov
    Acked-by: Eric Dumazet
    Signed-off-by: David S. Miller

    Pavel Emelyanov
     

25 Oct, 2010

1 commit

  • 7e223de84   ip6_tunnel dont update the mtu on the route. ... Browse Code »

    The ip6_tunnel device did not unset the flag,
    IFF_XMIT_DST_RELEASE. This will make the dev layer
    to release the dst before calling the tunnel.
    The tunnel will not update any mtu/pmtu info, since
    it does not have a dst on the skb.
    Acked-by: Eric Dumazet

    Signed-off-by: David S. Miller

    Anders Franzen
     

06 Oct, 2010

1 commit

  • caf586e5f   net: add a core netdev->rx_dropped counter ... Browse Code »

    In various situations, a device provides a packet to our stack and we
    drop it before it enters protocol stack :
    - softnet backlog full (accounted in /proc/net/softnet_stat)
    - bad vlan tag (not accounted)
    - unknown/unregistered protocol (not accounted)

    We can handle a per-device counter of such dropped frames at core level,
    and automatically adds it to the device provided stats (rx_dropped), so
    that standard tools can be used (ifconfig, ip link, cat /proc/net/dev)

    This is a generalization of commit 8990f468a (net: rx_dropped
    accounting), thus reverting it.

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

    Eric Dumazet
     

30 Sep, 2010

1 commit

  • 8560f2266   ip6tnl: percpu stats accounting ... Browse Code »

    Maintain per_cpu tx_bytes, tx_packets, rx_bytes, rx_packets.

    Other seldom used fields are kept in netdev->stats structure, possibly
    unsafe.

    This is a preliminary work to support lockless transmit path, and
    correct RX stats, that are already unsafe.

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

    Eric Dumazet
     

21 Sep, 2010

1 commit

  • 8990f468a   net: rx_dropped accounting ... Browse Code »

    Under load, netif_rx() can drop incoming packets but administrators dont
    have a chance to spot which device needs some tuning (RPS activation for
    example)

    This patch adds rx_dropped accounting in vlans and tunnels.

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

    Eric Dumazet
     

17 Sep, 2010

1 commit

  • 947676326   ip6tnl: get rid of ip6_tnl_lock ... Browse Code »

    As RTNL is held while doing tunnels inserts and deletes, we can remove
    ip6_tnl_lock spinlock. My initial RCU conversion was conservative and
    converted the rwlock to spinlock, with no RTNL requirement.

    Use appropriate rcu annotations and modern lockdep checks as well.

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

    Eric Dumazet
     

31 Aug, 2010

1 commit

11 Jun, 2010

1 commit

18 May, 2010

1 commit

  • d19d56ddc   net: Introduce skb_tunnel_rx() helper ... Browse Code »

    skb rxhash should be cleared when a skb is handled by a tunnel before
    being delivered again, so that correct packet steering can take place.

    There are other cleanups and accounting that we can factorize in a new
    helper, skb_tunnel_rx()

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

    Eric Dumazet
     

30 Mar, 2010

1 commit

  • 5a0e3ad6a   include cleanup: Update gfp.h and slab.h includes to prepare for breaking implic… ... Browse Code »

    …it slab.h inclusion from percpu.h

    percpu.h is included by sched.h and module.h and thus ends up being
    included when building most .c files. percpu.h includes slab.h which
    in turn includes gfp.h making everything defined by the two files
    universally available and complicating inclusion dependencies.

    percpu.h -> slab.h dependency is about to be removed. Prepare for
    this change by updating users of gfp and slab facilities include those
    headers directly instead of assuming availability. As this conversion
    needs to touch large number of source files, the following script is
    used as the basis of conversion.

    http://userweb.kernel.org/~tj/misc/slabh-sweep.py

    The script does the followings.

    * Scan files for gfp and slab usages and update includes such that
    only the necessary includes are there. ie. if only gfp is used,
    gfp.h, if slab is used, slab.h.

    * When the script inserts a new include, it looks at the include
    blocks and try to put the new include such that its order conforms
    to its surrounding. It's put in the include block which contains
    core kernel includes, in the same order that the rest are ordered -
    alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
    doesn't seem to be any matching order.

    * If the script can't find a place to put a new include (mostly
    because the file doesn't have fitting include block), it prints out
    an error message indicating which .h file needs to be added to the
    file.

    The conversion was done in the following steps.

    1. The initial automatic conversion of all .c files updated slightly
    over 4000 files, deleting around 700 includes and adding ~480 gfp.h
    and ~3000 slab.h inclusions. The script emitted errors for ~400
    files.

    2. Each error was manually checked. Some didn't need the inclusion,
    some needed manual addition while adding it to implementation .h or
    embedding .c file was more appropriate for others. This step added
    inclusions to around 150 files.

    3. The script was run again and the output was compared to the edits
    from #2 to make sure no file was left behind.

    4. Several build tests were done and a couple of problems were fixed.
    e.g. lib/decompress_*.c used malloc/free() wrappers around slab
    APIs requiring slab.h to be added manually.

    5. The script was run on all .h files but without automatically
    editing them as sprinkling gfp.h and slab.h inclusions around .h
    files could easily lead to inclusion dependency hell. Most gfp.h
    inclusion directives were ignored as stuff from gfp.h was usually
    wildly available and often used in preprocessor macros. Each
    slab.h inclusion directive was examined and added manually as
    necessary.

    6. percpu.h was updated not to include slab.h.

    7. Build test were done on the following configurations and failures
    were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
    distributed build env didn't work with gcov compiles) and a few
    more options had to be turned off depending on archs to make things
    build (like ipr on powerpc/64 which failed due to missing writeq).

    * x86 and x86_64 UP and SMP allmodconfig and a custom test config.
    * powerpc and powerpc64 SMP allmodconfig
    * sparc and sparc64 SMP allmodconfig
    * ia64 SMP allmodconfig
    * s390 SMP allmodconfig
    * alpha SMP allmodconfig
    * um on x86_64 SMP allmodconfig

    8. percpu.h modifications were reverted so that it could be applied as
    a separate patch and serve as bisection point.

    Given the fact that I had only a couple of failures from tests on step
    6, I'm fairly confident about the coverage of this conversion patch.
    If there is a breakage, it's likely to be something in one of the arch
    headers which should be easily discoverable easily on most builds of
    the specific arch.

    Signed-off-by: Tejun Heo <tj@kernel.org>
    Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
    Cc: Ingo Molnar <mingo@redhat.com>
    Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>

    Tejun Heo
     

19 Feb, 2010

1 commit

17 Feb, 2010

1 commit

18 Jan, 2010

1 commit

02 Dec, 2009

1 commit

18 Nov, 2009

1 commit

02 Nov, 2009

1 commit

29 Oct, 2009

1 commit

24 Oct, 2009

1 commit

25 Sep, 2009

1 commit

  • a43912ab1   tunnel: eliminate recursion field ... Browse Code »

    It seems recursion field from "struct ip_tunnel" is not anymore needed.
    recursion prevention is done at the upper level (in dev_queue_xmit()),
    since we use HARD_TX_LOCK protection for tunnels.

    This avoids a cache line ping pong on "struct ip_tunnel" : This structure
    should be now mostly read on xmit and receive paths.

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

    Eric Dumazet
     

01 Sep, 2009

1 commit

06 Jul, 2009

1 commit

23 Jun, 2009

1 commit

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
     

18 May, 2009

1 commit

10 Feb, 2009

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