20 Jul, 2007
3 commits
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Slab destructors were no longer supported after Christoph's
c59def9f222d44bb7e2f0a559f2906191a0862d7 change. They've been
BUGs for both slab and slub, and slob never supported them
either.This rips out support for the dtor pointer from kmem_cache_create()
completely and fixes up every single callsite in the kernel (there were
about 224, not including the slab allocator definitions themselves,
or the documentation references).Signed-off-by: Paul Mundt
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* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: (25 commits)
[TG3]: Fix msi issue with kexec/kdump.
[NET] XFRM: Fix whitespace errors.
[NET] TIPC: Fix whitespace errors.
[NET] SUNRPC: Fix whitespace errors.
[NET] SCTP: Fix whitespace errors.
[NET] RXRPC: Fix whitespace errors.
[NET] ROSE: Fix whitespace errors.
[NET] RFKILL: Fix whitespace errors.
[NET] PACKET: Fix whitespace errors.
[NET] NETROM: Fix whitespace errors.
[NET] NETFILTER: Fix whitespace errors.
[NET] IPV4: Fix whitespace errors.
[NET] DCCP: Fix whitespace errors.
[NET] CORE: Fix whitespace errors.
[NET] BLUETOOTH: Fix whitespace errors.
[NET] AX25: Fix whitespace errors.
[PATCH] mac80211: remove rtnl locking in ieee80211_sta.c
[PATCH] mac80211: fix GCC warning on 64bit platforms
[GENETLINK]: Dynamic multicast groups.
[NETLIKN]: Allow removing multicast groups.
... -
AFAICT now that jprobe.entry is a void *, JPROBE_ENTRY doesn't do anything
useful - so remove it ..I've left a do-nothing version so that out-of-tree jprobes code will still
compile without modifications.Signed-off-by: Michael Ellerman
Cc: Prasanna S Panchamukhi
Acked-by: Ananth N Mavinakayanahalli
Cc: Anil S Keshavamurthy
Cc: David S. Miller
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
19 Jul, 2007
1 commit
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Signed-off-by: YOSHIFUJI Hideaki
11 Jul, 2007
14 commits
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Based on .
Signed-off-by: YOSHIFUJI Hideaki
Signed-off-by: David S. Miller -
Signed-off-by: Adrian Bunk
Signed-off-by: Andrew Morton
Signed-off-by: David S. Miller -
ccid3_hc_tx_send_packet currently returns 0 when the time difference between
current time and t_nom is less than 1000 microseconds.In this case the packet is sent immediately; but, unlike other packets that can
be emitted on first attempt, it will not have its window counter updated and
its options set as required. This is a bug.Fix: Require the time difference to be at least 1000 microseconds. The
algorithm then converges: time differences > 1000 microseconds trigger the
timer in dccp_write_xmit; after timer expiry this function is tried again; when
the time difference is less than 1000, the packet will have its options added
and window counter updated as required.Signed-off-by: Gerrit Renker
Signed-off-by: Arnaldo Carvalho de Melo -
This updates the computation of t_nom and t_last_win_count to use the newer
gettimeofday interface.Committer note: used ktime_to_timeval to set the 'now' variable to t_ld in
ccid3hctx_no_feedback_timerSigned-off-by: Gerrit Renker
Signed-off-by: Arnaldo Carvalho de Melo -
net/dccp/ccids/lib/loss_interval.c is the only place where this struct is used.
Signed-off-by: Arnaldo Carvalho de Melo
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It had just a slab cache, so, for the sake of simplicity just make
dccp_trfc_lib module init routine create the slab cache, no need for users of
the lib to create a private loss_interval object.Signed-off-by: Arnaldo Carvalho de Melo
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Not used outside the loss_interval code anymore.
Signed-off-by: Arnaldo Carvalho de Melo
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Now its only used inside the loss_interval code.
Signed-off-by: Arnaldo Carvalho de Melo
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Renaming it to dccp_li_update_li.
Also based on previous work by Ian McDonald.
Signed-off-by: Arnaldo Carvalho de Melo
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Now ccid3_hc_rx_update_li is ready to be moved to
net/dccp/ccids/lib/loss_interval, it uses the same interface as the other
functions there.Signed-off-by: Arnaldo Carvalho de Melo
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This is a preparatory patch for moving these loss interval functions from
net/dccp/ccids/ccid3.c to net/dccp/ccids/lib/loss_interval.c.Based on a patch by Ian McDonald.
Signed-off-by: Arnaldo Carvalho de Melo
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When compiling with EXTRA_CFLAGS=-W noticed that tstamp is not initialised
correctly in dccp_li_calc_first_li.Signed-off-by: Arnaldo Carvalho de Melo
Signed-off-by: Ian McDonald -
When compiling with EXTRA_CFLAGS=-W notice that we have signed/unsigned issue
in dccp.h.Signed-off-by: Arnaldo Carvalho de Melo
Signed-off-by: Ian McDonald -
Signed-off-by: Ian McDonald
Signed-off-by: Arnaldo Carvalho de Melo
04 Jun, 2007
1 commit
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Recent gcc versions emit warnings when unsigned variables are
compared < 0 or >= 0.Signed-off-by: Bill Nottingham
Signed-off-by: David S. Miller
25 May, 2007
3 commits
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The current IPSEC rule resolution behavior we have does not work for a
lot of people, even though technically it's an improvement from the
-EAGAIN buisness we had before.Right now we'll block until the key manager resolves the route. That
works for simple cases, but many folks would rather packets get
silently dropped until the key manager resolves the IPSEC rules.We can't tell these folks to "set the socket non-blocking" because
they don't have control over the non-block setting of things like the
sockets used to resolve DNS deep inside of the resolver libraries in
libc.With that in mind I coded up the patch below with some help from
Herbert Xu which provides packet-drop behavior during larval state
resolution, controllable via sysctl and off by default.This lays the framework to either:
1) Make this default at some point or...
2) Move this logic into xfrm{4,6}_policy.c and implement the
ARP-like resolution queue we've all been dreaming of.
The idea would be to queue packets to the policy, then
once the larval state is resolved by the key manager we
re-resolve the route and push the packets out. The
packets would timeout if the rule didn't get resolved
in a certain amount of time.Signed-off-by: David S. Miller
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Signed-off-by: David S. Miller
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Use menuconfigs instead of menus, so the whole menu can be disabled at
once instead of going through all options.Signed-off-by: Jan Engelhardt
Signed-off-by: Andrew Morton
Signed-off-by: David S. Miller
26 Apr, 2007
18 commits
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SPIN_LOCK_UNLOCKED cleanup,use __SPIN_LOCK_UNLOCKED instead
Signed-off-by: Milind Arun Choudhary
Signed-off-by: Andrew Morton
Signed-off-by: David S. Miller -
This prints the value of the parsed Elapsed Time when received via a
Timestamp Echo option [RFC 4342, 13.3].Signed-off-by: Gerrit Renker
Acked-by: Ian McDonald
Signed-off-by: Arnaldo Carvalho de Melo
Signed-off-by: David S. Miller -
This fixes an error in the calculation of t_ipi when X converges towards
very low sending rates (between 1 and 64 bytes per second).Although this case may not sound likely, it can be reproduced by connecting,
hitting enter (1 byte sent) and waiting for some time, during which the
nofeedback timer halves the sending rate until finally it reaches the region
1..64 bytes/sec. Computing X is handled correctly (tested separately); but by
dividing X _before_ entering the calculation of t_ipi, X becomes zero as
a result. This in turn triggers a BUG condition caught in scaled_div().Fixed by replacing with equivalent statement and explicit typecast for good
measure.Calculation verified and effect of patch tested - reduced never below 1 byte
per 64 seconds afterwards, i.e. not allowing divide-by-zero.Signed-off-by: Gerrit Renker
Acked-by: Ian McDonald
Signed-off-by: Arnaldo Carvalho de Melo
Signed-off-by: David S. Miller -
The patch follows the following recommendation made in an erratum to RFC 4342:
"Senders MAY additionally make use of other available RTT measurements,
including those from the initial Request-Response packet exchange."It implements larger initial windows with regard to this inital RTT measurement,
using the mechanism suggested in draft-ietf-dccp-rfc3448bis, section 4.2.Signed-off-by: Gerrit Renker
Signed-off-by: Ian McDonald
Signed-off-by: Arnaldo Carvalho de Melo
Signed-off-by: David S. Miller -
Function:
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This replaces the existing occurrences of RTT sampling with
the use of the new function dccp_sample_rtt.Signed-off-by: Gerrit Renker
Signed-off-by: Ian McDonald
Signed-off-by: Arnaldo Carvalho de Melo
Signed-off-by: David S. Miller -
A recurring problem, in particular in the CCID code, is that RTT samples
from packets with timestamp echo and elapsed time options need to be taken.This service is provided via a new function dccp_sample_rtt in this patch.
Furthermore, to protect against `insane' RTT samples, the sampled value
is bounded between 100 microseconds and 4 seconds - for which u32 is sufficient.Signed-off-by: Gerrit Renker
Signed-off-by: Ian McDonald
Signed-off-by: Arnaldo Carvalho de Melo
Signed-off-by: David S. Miller -
This updates the code with regard to handling idle and application-limited
periods as specified in [RFC 4342, 5.1].Background:
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The CCID 3 and TFRC specs (RFC 4342, RFC 3448, draft-3448bis) make frequent
reference to the computation of the RFC-3390 initial sending rate:1. Initial sending rate when RTT is known (RFC 4342, p. 6)
2. Response to Idle/Application-Limited periods (RFC 4342, 5.1)This warrants putting the code into its own function, for later code reuse.
Signed-off-by: Gerrit Renker
Signed-off-by: Ian McDonald
Signed-off-by: Arnaldo Carvalho de Melo
Signed-off-by: David S. Miller -
This clears the following sparc64 build warnings:
1) warning: format "%ld" expects type "long int", but argument 3 has type "suseconds_t"
2) warning: format "%llu" expects type "long long unsigned int", but argument 3 has type "__u64"
Fixed by using typecast to unsigned. This is argued to be safe, since the quantities, after
de-scaling (factor 2^6) fit all in u32.Signed-off-by: Gerrit Renker
Signed-off-by: Ian McDonald
Signed-off-by: Arnaldo Carvalho de Melo
Signed-off-by: David S. Miller -
This adds a few more fields of interest to /proc/net/dccpprobe, the following output ensues:
1 2 3 4 5 6 7 8 9 10 11
sec.usec src:sport dst:dport size s rtt p X_calc X_recv X t_ipiAlso made the formatting consistent.
Scripts that go with this can be downloaded from http://139.133.210.30/users/gerrit/dccp/dccp_probe/
Signed-off-by: Gerrit Renker
Acked-by: Ian McDonald
Signed-off-by: Arnaldo Carvalho de Melo
Signed-off-by: David S. Miller -
This adds more detail in the wait_for_ccid packet scheduling loop.
In particular, it informs about (i) when delay is used and (ii) why
a packet is discarded.Signed-off-by: Gerrit Renker
Signed-off-by: Ian McDonald
Signed-off-by: Arnaldo Carvalho de Melo
Signed-off-by: David S. Miller -
Currently debugging output (when configured) is automatically enabled when
DCCP modules are compiled into the kernel rather than built as loadable modules.
This is not necessary, since the module parameters in this case become kernel
commandline parameters, e.g. DCCP or CCID3 debug output can be enabled for a
static build by appending the following at the boot prompt:dccp.dccp_debug=1 dccp_ccid3.ccid3_debug=1
This patch therefore does away with the more complicated way of always enabling
debug output for static buildsSigned-off-by: Gerrit Renker
Signed-off-by: Arnaldo Carvalho de Melo
Signed-off-by: David S. Miller -
This:
1. removes a race condition in the access to the scheduled send time t_nom which
results from allowing asynchronous r/w access to t_nom without locks;2. updates the inter-packet interval t_ipi = s/X when `s' changes, following a
suggestion by Ian McDonald.Signed-off-by: Gerrit Renker
Acked-by: Ian McDonald
Signed-off-by: Arnaldo Carvalho de Melo
Signed-off-by: David S. Miller -
This adds a few debugging statements to ccid3.c
Signed-off-by: Ian McDonald
Signed-off-by: Gerrit Renker
Signed-off-by: Arnaldo Carvalho de Melo
Signed-off-by: David S. Miller -
This fixes a bug which uses an invalid comparison.
The bug resulted in the use of invalid loss intervals.Signed-off-by: Ian McDonald
Acked-by: Gerrit Renker
Signed-off-by: Arnaldo Carvalho de Melo
Signed-off-by: David S. Miller -
This improves the slow-start phase by using the MSS
(as suggested in RFC 4342, sec. 5) instead of the packet size s.
Also figured out that __u32 is ample resource enough.After applying, I got the following in the logs:
ccid3_hc_tx_packet_recv: client(f7421700), s=6, MSS=1424, w_init=4380, R_sample=176us, X=24886363
Had the previous variant been used, w_init would have been as low as 24.
Committer note: removed unneeded cast to unsigned long long that was
causing a compiler warning on 64bit architectures.Signed-off-by: Gerrit Renker
Acked-by: Ian McDonald
Signed-off-by: Arnaldo Carvalho de Melo
Signed-off-by: David S. Miller -
No code change at all.
This splits ccid3.c into a RX and a TX section, so that the file has an
organisation similar to the other ones (e.g. packet_history.{h,c}).Signed-off-by: Gerrit Renker
Acked-by: Ian McDonald
Signed-off-by: Arnaldo Carvalho de Melo
Signed-off-by: David S. Miller
