- 08 6月, 2010 1 次提交
-
-
由 Eric Dumazet 提交于
NOTRACK makes all cpus share a cache line on nf_conntrack_untracked twice per packet. This is bad for performance. __read_mostly annotation is also a bad choice. This patch introduces IPS_UNTRACKED bit so that we can use later a per_cpu untrack structure more easily. A new helper, nf_ct_untracked_get() returns a pointer to nf_conntrack_untracked. Another one, nf_ct_untracked_status_or() is used by nf_nat_init() to add IPS_NAT_DONE_MASK bits to untracked status. nf_ct_is_untracked() prototype is changed to work on a nf_conn pointer. Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com> Signed-off-by: NPatrick McHardy <kaber@trash.net>
-
- 04 6月, 2010 1 次提交
-
-
由 Eric Dumazet 提交于
Using vmalloc_node(size, numa_node_id()) for temporary storage is not needed. vmalloc(size) is more respectful of user NUMA policy. Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com> Signed-off-by: NPatrick McHardy <kaber@trash.net>
-
- 01 6月, 2010 2 次提交
-
-
由 Eric Dumazet 提交于
Use atomic_cmpxchg() to avoid dirtying a shared location. xt_statistic_priv smp aligned to avoid sharing same cache line with other stuff. Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com> Signed-off-by: NPatrick McHardy <kaber@trash.net>
-
由 Eric Dumazet 提交于
Avoid dirtying bridge_parent_rtable refcount, using new dst noref infrastructure. Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com> Signed-off-by: NPatrick McHardy <kaber@trash.net>
-
- 31 5月, 2010 8 次提交
-
-
由 Ian Campbell 提交于
Currently such notifications are only generated when the device comes up or the address changes. However one use case for these notifications is to enable faster network recovery after a virtual machine migration (by causing switches to relearn their MAC tables). A migration appears to the network stack as a temporary loss of carrier and therefore does not trigger either of the current conditions. Rather than adding carrier up as a trigger (which can cause issues when interfaces a flapping) simply add an interface which the driver can use to explicitly trigger the notification. Signed-off-by: NIan Campbell <ian.campbell@citrix.com> Cc: Stephen Hemminger <shemminger@linux-foundation.org> Cc: Jeremy Fitzhardinge <jeremy@goop.org> Cc: David S. Miller <davem@davemloft.net> Cc: netdev@vger.kernel.org Cc: stable@kernel.org Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Dan Carpenter 提交于
"phyinfo" can never be null here because we assigned it an address, so I removed both the assert and the second check inside the if statement. I removed the "phyinfo->phy_layer != NULL" check as well because that was asserted earlier. Walter Harms suggested I move the "phyinfo->phy_ref_count++;" outside the if condition for readability, so I have done that. Signed-off-by: NDan Carpenter <error27@gmail.com> Acked-by: NSjur Braendeland <sjur.brandeland@stericsson.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Dan Carpenter 提交于
We already dereferenced uaddr towards the start of the function when we checked that "uaddr->sa_family != AF_CAIF". Both the check here and the earlier check were added in bece7b23: "caif: Rewritten socket implementation". Before that patch, we assumed that we recieved a valid pointer for uaddr, and based on that, I have removed this check. Signed-off-by: NDan Carpenter <error27@gmail.com> Acked-by: NSjur Braendeland <sjur.brandeland@stericsson.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Julia Lawall 提交于
Use memdup_user when user data is immediately copied into the allocated region. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression from,to,size,flag; position p; identifier l1,l2; @@ - to = \(kmalloc@p\|kzalloc@p\)(size,flag); + to = memdup_user(from,size); if ( - to==NULL + IS_ERR(to) || ...) { <+... when != goto l1; - -ENOMEM + PTR_ERR(to) ...+> } - if (copy_from_user(to, from, size) != 0) { - <+... when != goto l2; - -EFAULT - ...+> - } // </smpl> Signed-off-by: NJulia Lawall <julia@diku.dk> Acked-by: NGerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Julia Lawall 提交于
Use memdup_user when user data is immediately copied into the allocated region. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression from,to,size,flag; position p; identifier l1,l2; @@ - to = \(kmalloc@p\|kzalloc@p\)(size,flag); + to = memdup_user(from,size); if ( - to==NULL + IS_ERR(to) || ...) { <+... when != goto l1; - -ENOMEM + PTR_ERR(to) ...+> } - if (copy_from_user(to, from, size) != 0) { - <+... when != goto l2; - -EFAULT - ...+> - } // </smpl> Signed-off-by: NJulia Lawall <julia@diku.dk> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Eric Dumazet 提交于
tcp_md5_hash_skb_data() should handle skb->frag_list, and eventually recurse. Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Eric Dumazet 提交于
netpoll does an interesting work in zap_completion_queue(), but this was before we did skb orphaning before delivering packets to device. It now makes sense to add a test in dev_kfree_skb_irq() to not queue a skb if already orphaned, and to remove netpoll zap_completion_queue() as a bonus. Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Eric Dumazet 提交于
This patch saves 224 bytes of text on my machine. __this_cpu_inc() generates a single instruction, using no scratch registers : 65 ff 04 25 a8 30 01 00 incl %gs:0x130a8 instead of : 48 c7 c2 80 30 01 00 mov $0x13080,%rdx 65 48 8b 04 25 88 ea 00 00 mov %gs:0xea88,%rax 83 44 10 28 01 addl $0x1,0x28(%rax,%rdx,1) Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
- 29 5月, 2010 7 次提交
-
-
由 Eric Dumazet 提交于
As David found out, sock_queue_err_skb() should be called with socket lock hold, or we risk sk_forward_alloc corruption, since we use non atomic operations to update this field. This patch adds bh_lock_sock()/bh_unlock_sock() pair to three spots. (BH already disabled) 1) skb_tstamp_tx() 2) Before calling ip_icmp_error(), in __udp4_lib_err() 3) Before calling ipv6_icmp_error(), in __udp6_lib_err() Reported-by: NAnton Blanchard <anton@samba.org> Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Rémi Denis-Courmont 提交于
The accept()'d socket need to be unhashed while the (listen()'ing) socket lock is held. This fixes a race condition that could lead to an OOPS. Signed-off-by: NRémi Denis-Courmont <remi.denis-courmont@nokia.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Dan Carpenter 提交于
There was an spin_unlock missing on the error path. The spin_lock was tucked in with the declarations so it was hard to spot. I added a new line. Signed-off-by: NDan Carpenter <error27@gmail.com> Acked-by: NSjur Brændeland <sjurbren@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Julia Lawall 提交于
Add a mutex_unlock missing on the error path. In each case, whenever the label out is reached from elsewhere in the function, mutex is not locked. The semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression E1; @@ * mutex_lock(E1); <+... when != E1 if (...) { ... when != E1 * return ...; } ...+> * mutex_unlock(E1); // </smpl> Signed-off-by: NJulia Lawall <julia@diku.dk> Reviewed-by: NZach Brown <zach.brown@oracle.com> Acked-by: NAndy Grover <andy.grover@oracle.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Changli Gao 提交于
Signed-off-by: NChangli Gao <xiaosuo@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Brian Haley 提交于
Commit f4f914b5 (net: ipv6 bind to device issue) caused a regression with Mobile IPv6 when it changed the meaning of fl->oif to become a strict requirement of the route lookup. Instead, only force strict mode when sk->sk_bound_dev_if is set on the calling socket, getting the intended behavior and fixing the regression. Tested-by: NArnaud Ebalard <arno@natisbad.org> Signed-off-by: NBrian Haley <brian.haley@hp.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Johannes Berg 提交于
sparse correctly complains that __ieee80211_get_channel_mode is not static. Signed-off-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
-
- 28 5月, 2010 6 次提交
-
-
由 Scott Feldman 提交于
The wrong size was being calculated for vfinfo. In one case, it was over- calculating using nlmsg_total_size on attrs, in another case, it was under-calculating by assuming ifla_vf_* structs are packed together, but each struct is it's own attr w/ hdr (and padding). Signed-off-by: NScott Feldman <scofeldm@cisco.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Scott Feldman 提交于
Noticed by Patrick McHardy: was continuing to fill skb after a nla_put_failure, ignoring the size calculated by upper layer. Now, return -EMSGSIZE on any overruns, but also allow netdev to fail ndo_get_vf_port with error other than -EMSGSIZE, thus unwinding nest. Signed-off-by: NScott Feldman <scofeldm@cisco.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Eric Dumazet 提交于
After commit 7fee226a (net: add a noref bit on skb dst), its wrong to use : dst_release(skb_dst(skb)), since we could decrement a refcount while skb dst was not refcounted. We should use skb_dst_drop(skb) instead. Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Herbert Xu 提交于
Currently we disallow GSO packets on the IPv6 forward path. This patch fixes this. Note that I discovered that our existing GSO MTU checks (e.g., IPv4 forwarding) are buggy in that they skip the check altogether, when they really should be checking gso_size + header instead. I have also been lazy here in that I haven't bothered to segment the GSO packet by hand before generating an ICMP message. Someone should add that to be 100% correct. Reported-by: NRalf Baechle <ralf@linux-mips.org> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Eric Dumazet 提交于
commit 7fee226a (net: add a noref bit on skb dst) missed one spot where an skb is enqueued, with a possibly not refcounted dst entry. __neigh_event_send() inserts skb into arp_queue, so we must make sure dst entry is refcounted, or dst entry can be freed by garbage collector after caller exits from rcu protected section. Reported-by: NIngo Molnar <mingo@elte.hu> Tested-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Akinobu Mita 提交于
By the previous modification, the cpu notifier can return encapsulate errno value. This converts the cpu notifiers for iucv. Signed-off-by: NAkinobu Mita <akinobu.mita@gmail.com> Cc: Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
- 27 5月, 2010 2 次提交
-
-
由 Eric Dumazet 提交于
This new sock lock primitive was introduced to speedup some user context socket manipulation. But it is unsafe to protect two threads, one using regular lock_sock/release_sock, one using lock_sock_bh/unlock_sock_bh This patch changes lock_sock_bh to be careful against 'owned' state. If owned is found to be set, we must take the slow path. lock_sock_bh() now returns a boolean to say if the slow path was taken, and this boolean is used at unlock_sock_bh time to call the appropriate unlock function. After this change, BH are either disabled or enabled during the lock_sock_bh/unlock_sock_bh protected section. This might be misleading, so we rename these functions to lock_sock_fast()/unlock_sock_fast(). Reported-by: NAnton Blanchard <anton@samba.org> Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com> Tested-by: NAnton Blanchard <anton@samba.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Julia Lawall 提交于
Add a spin_unlock missing on the error path. There seems like no reason why the lock should continue to be held if the kzalloc fail. The semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression E1; @@ * spin_lock(E1,...); <+... when != E1 if (...) { ... when != E1 * return ...; } ...+> * spin_unlock(E1,...); // </smpl> Signed-off-by: NJulia Lawall <julia@diku.dk> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
- 26 5月, 2010 3 次提交
-
-
由 J. Bruce Fields 提交于
Also collect exit code together while we're at it. Signed-off-by: NJ. Bruce Fields <bfields@citi.umich.edu> Cc: Trond Myklebust <Trond.Myklebust@netapp.com> Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
-
由 Dan Carpenter 提交于
This fixes a smatch warning: net/ipv4/ipmr.c +1917 __ipmr_fill_mroute(12) error: buffer overflow '(mrt)->vif_table' 32 <= 32 The ipv6 version had the same issue. Signed-off-by: NDan Carpenter <error27@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Rémi Denis-Courmont 提交于
sk_common_release() might destroy our last reference to the socket. So an extra temporary reference is needed during cleanup. Signed-off-by: NRémi Denis-Courmont <remi.denis-courmont@nokia.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
- 25 5月, 2010 5 次提交
-
-
由 Alex Riesen 提交于
gcc-4.3.3 produces the warning: "format not a string literal and no format arguments" Signed-off-by: NAlex Riesen <raa.lkml@gmail.com> Cc: Trond Myklebust <Trond.Myklebust@netapp.com> Cc: Chuck Lever <cel@citi.umich.edu> Cc: David S. Miller <davem@davemloft.net> Acked-by: NTom Talpey <tmtalpey@gmail.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
由 Alexey Dobriyan 提交于
- C99 knows about USHRT_MAX/SHRT_MAX/SHRT_MIN, not USHORT_MAX/SHORT_MAX/SHORT_MIN. - Make SHRT_MIN of type s16, not int, for consistency. [akpm@linux-foundation.org: fix drivers/dma/timb_dma.c] [akpm@linux-foundation.org: fix security/keys/keyring.c] Signed-off-by: NAlexey Dobriyan <adobriyan@gmail.com> Acked-by: NWANG Cong <xiyou.wangcong@gmail.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
由 Yoichi Yuasa 提交于
Because MIPS's EDQUOT value is 1133(0x46d). It's larger than u8. Signed-off-by: NYoichi Yuasa <yuasa@linux-mips.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Randy Dunlap 提交于
Fix sta_info.h kernel-doc warnings: Warning(net/mac80211/sta_info.h:164): No description found for parameter 'tid_active_rx[STA_TID_NUM]' Warning(net/mac80211/sta_info.h:164): Excess struct/union/enum/typedef member 'tid_state_rx' description in 'sta_ampdu_mlme' Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com> Acked-by: NJohannes Berg <johannes@sipsolutions.net> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
-
由 John W. Linville 提交于
This reverts commit 03ceedea. This patch was reported to cause a regression in which connectivity is lost and cannot be reestablished after a suspend/resume cycle. Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
-
- 24 5月, 2010 5 次提交
-
-
由 Linus Torvalds 提交于
This reverts commit 03ceedea, since it breaks resume from suspend-to-ram on Rafael's Acer Ferrari One. NetworkManager thinks everything is ok, but it can't connect to the AP to get an IP address after the resume. In fact, it even breaks resume for non-ath9k chipsets: reverting it also fixes Rafael's Toshiba Protege R500 with the iwlagn driver. As Johannes says: "Indeed, this patch needs to be reverted. That mac80211 change is wrong and completely unnecessary." Reported-and-requested-by: NRafael J. Wysocki <rjw@sisk.pl> Acked-by: NJohannes Berg <johannes@sipsolutions.net> Cc: Daniel Yingqiang Ma <yma.cool@gmail.com> Cc: John W. Linville <linville@tuxdriver.com> Cc: David Miller <davem@davemloft.net> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
由 Herbert Xu 提交于
This patch makes tun update its socket classid every time we inject a packet into the network stack. This is so that any updates made by the admin to the process writing packets to tun is effected. Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Herbert Xu 提交于
Up until now cls_cgroup has relied on fetching the classid out of the current executing thread. This runs into trouble when a packet processing is delayed in which case it may execute out of another thread's context. Furthermore, even when a packet is not delayed we may fail to classify it if soft IRQs have been disabled, because this scenario is indistinguishable from one where a packet unrelated to the current thread is processed by a real soft IRQ. In fact, the current semantics is inherently broken, as a single skb may be constructed out of the writes of two different tasks. A different manifestation of this problem is when the TCP stack transmits in response of an incoming ACK. This is currently unclassified. As we already have a concept of packet ownership for accounting purposes in the skb->sk pointer, this is a natural place to store the classid in a persistent manner. This patch adds the cls_cgroup classid in struct sock, filling up an existing hole on 64-bit :) The value is set at socket creation time. So all sockets created via socket(2) automatically gains the ID of the thread creating it. Whenever another process touches the socket by either reading or writing to it, we will change the socket classid to that of the process if it has a valid (non-zero) classid. For sockets created on inbound connections through accept(2), we inherit the classid of the original listening socket through sk_clone, possibly preceding the actual accept(2) call. In order to minimise risks, I have not made this the authoritative classid. For now it is only used as a backup when we execute with soft IRQs disabled. Once we're completely happy with its semantics we can use it as the sole classid. Footnote: I have rearranged the error path on cls_group module creation. If we didn't do this, then there is a window where someone could create a tc rule using cls_group before the cgroup subsystem has been registered. Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Sjur Braendeland 提交于
Fixed handling when skb don't fit in user buffer, instead of returning -EMSGSIZE, the buffer is truncated (just as unix seqpakcet does). Signed-off-by: NSjur Braendeland <sjur.brandeland@stericsson.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Sjur Braendeland 提交于
Splint found missing spin_unlock. Corrected this an some other trivial split warnings. Signed-off-by: NSjur Braendeland <sjur.brandeland@stericsson.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-