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2011-10-31treewide: use __printf not __attribute__((format(printf,...)))Joe Perches3-8/+7
Standardize the style for compiler based printf format verification. Standardized the location of __printf too. Done via script and a little typing. $ grep -rPl --include=*.[ch] -w "__attribute__" * | \ grep -vP "^(tools|scripts|include/linux/compiler-gcc.h)" | \ xargs perl -n -i -e 'local $/; while (<>) { s/\b__attribute__\s*\(\s*\(\s*format\s*\(\s*printf\s*,\s*(.+)\s*,\s*(.+)\s*\)\s*\)\s*\)/__printf($1, $2)/g ; print; }' [akpm@linux-foundation.org: revert arch bits] Signed-off-by: Joe Perches <joe@perches.com> Cc: "Kirill A. Shutemov" <kirill@shutemov.name> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-10-31Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds12-30/+83
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (27 commits) vlan: allow nested vlan_do_receive() ipv6: fix route lookup in addrconf_prefix_rcv() bonding: eliminate bond_close race conditions qlcnic: fix beacon and LED test. qlcnic: Updated License file qlcnic: updated reset sequence qlcnic: reset loopback mode if promiscous mode setting fails. qlcnic: skip IDC ack check in fw reset path. i825xx: Fix incorrect dependency for BVME6000_NET ipv6: fix route error binding peer in func icmp6_dst_alloc ipv6: fix error propagation in ip6_ufo_append_data() stmmac: update normal descriptor structure (v2) stmmac: fix NULL pointer dereference in capabilities fixup (v2) stmmac: fix a bug while checking the HW cap reg (v2) be2net: Changing MAC Address of a VF was broken. be2net: Refactored be_cmds.c file. bnx2x: update driver version to 1.70.30-0 bnx2x: use FW 7.0.29.0 bnx2x: Enable changing speed when port type is PORT_DA bnx2x: Fix 54618se LED behavior ...
2011-10-30vlan: allow nested vlan_do_receive()Eric Dumazet2-4/+7
commit 2425717b27eb (net: allow vlan traffic to be received under bond) broke ARP processing on vlan on top of bonding. +-------+ eth0 --| bond0 |---bond0.103 eth1 --| | +-------+ 52870.115435: skb_gro_reset_offset <-napi_gro_receive 52870.115435: dev_gro_receive <-napi_gro_receive 52870.115435: napi_skb_finish <-napi_gro_receive 52870.115435: netif_receive_skb <-napi_skb_finish 52870.115435: get_rps_cpu <-netif_receive_skb 52870.115435: __netif_receive_skb <-netif_receive_skb 52870.115436: vlan_do_receive <-__netif_receive_skb 52870.115436: bond_handle_frame <-__netif_receive_skb 52870.115436: vlan_do_receive <-__netif_receive_skb 52870.115436: arp_rcv <-__netif_receive_skb 52870.115436: kfree_skb <-arp_rcv Packet is dropped in arp_rcv() because its pkt_type was set to PACKET_OTHERHOST in the first vlan_do_receive() call, since no eth0.103 exists. We really need to change pkt_type only if no more rx_handler is about to be called for the packet. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Reviewed-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-30ipv6: fix route lookup in addrconf_prefix_rcv()Andreas Hofmeister1-3/+40
The route lookup to find a previously auto-configured route for a prefixes used to use rt6_lookup(), with the prefix from the RA used as an address. However, that kind of lookup ignores routing tables, the prefix length and route flags, so when there were other matching routes, even in different tables and/or with a different prefix length, the wrong route would be manipulated. Now, a new function "addrconf_get_prefix_route()" is used for the route lookup, which searches in RT6_TABLE_PREFIX and takes the prefix-length and route flags into account. Signed-off-by: Andreas Hofmeister <andi@collax.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-30Merge branch 'batman-adv/maint' of git://git.open-mesh.org/linux-mergeDavid S. Miller2-3/+18
2011-10-28Merge branch 'for-linus' of git://ceph.newdream.net/git/ceph-clientLinus Torvalds6-91/+217
* 'for-linus' of git://ceph.newdream.net/git/ceph-client: libceph: fix double-free of page vector ceph: fix 32-bit ino numbers libceph: force resend of osd requests if we skip an osdmap ceph: use kernel DNS resolver ceph: fix ceph_monc_init memory leak ceph: let the set_layout ioctl set single traits Revert "ceph: don't truncate dirty pages in invalidate work thread" ceph: replace leading spaces with tabs libceph: warn on msg allocation failures libceph: don't complain on msgpool alloc failures libceph: always preallocate mon connection libceph: create messenger with client ceph: document ioctls ceph: implement (optional) max read size ceph: rename rsize -> rasize ceph: make readpages fully async
2011-10-28ipv6: fix route error binding peer in func icmp6_dst_allocGao feng1-2/+1
in func icmp6_dst_alloc,dst_metric_set call ipv6_cow_metrics to set metric. ipv6_cow_metrics may will call rt6_bind_peer to set rt6_info->rt6i_peer. So,we should move ipv6_addr_copy before dst_metric_set to make sure rt6_bind_peer success. Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-28ipv6: fix error propagation in ip6_ufo_append_data()Zheng Yan1-1/+1
We should return errcode from sock_alloc_send_skb() Signed-off-by: Zheng Yan <zheng.z.yan@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-27ipv6: tcp: fix TCLASS value in ACK messages sent from TIME_WAITEric Dumazet6-17/+16
commit 66b13d99d96a (ipv4: tcp: fix TOS value in ACK messages sent from TIME_WAIT) fixed IPv4 only. This part is for the IPv6 side, adding a tclass param to ip6_xmit() We alias tw_tclass and tw_tos, if socket family is INET6. [ if sockets is ipv4-mapped, only IP_TOS socket option is used to fill TOS field, TCLASS is not taken into account ] Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-26Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds2-2/+4
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: caif: Fix BUG() with network namespaces net: make bonding slaves honour master's skb->priority net: Unlock sock before calling sk_free()
2011-10-26Merge branch 'tty-next' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty * 'tty-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (79 commits) TTY: serial_core: Fix crash if DCD drop during suspend tty/serial: atmel_serial: bootconsole removed from auto-enumerates Revert "TTY: call tty_driver_lookup_tty unconditionally" tty/serial: atmel_serial: add device tree support tty/serial: atmel_serial: auto-enumerate ports tty/serial: atmel_serial: whitespace and braces modifications tty/serial: atmel_serial: change platform_data variable name tty/serial: RS485 bindings for device tree TTY: call tty_driver_lookup_tty unconditionally TTY: pty, release tty in all ptmx_open fail paths TTY: make tty_add_file non-failing TTY: drop driver reference in tty_open fail path 8250_pci: Fix kernel panic when pch_uart is disabled h8300: drivers/serial/Kconfig was moved parport_pc: release IO region properly if unsupported ITE887x card is found tty: Support compat_ioctl get/set termios_locked hvc_console: display printk messages on console. TTY: snyclinkmp: forever loop in tx_load_dma_buffer() tty/n_gsm: avoid fifo overflow in gsm_dlci_data_output tty/n_gsm: fix a bug in gsm_dlci_data_output (adaption = 2 case) ... Fix up Conflicts in: - drivers/tty/serial/8250_pci.c Trivial conflict with removed duplicate device ID - drivers/tty/serial/atmel_serial.c Annoying silly conflict between "specify the port num via platform_data" and other changes to atmel_console_init
2011-10-26Merge branch 'for-linus' of git://github.com/ericvh/linuxLinus Torvalds6-411/+554
* 'for-linus' of git://github.com/ericvh/linux: 9p: fix 9p.txt to advertise msize instead of maxdata net/9p: Convert net/9p protocol dumps to tracepoints fs/9p: change an int to unsigned int fs/9p: Cleanup option parsing in 9p 9p: move dereference after NULL check fs/9p: inode file operation is properly initialized init_special_inode fs/9p: Update zero-copy implementation in 9p
2011-10-25caif: Fix BUG() with network namespacesDavid Woodhouse1-2/+3
The caif code will register its own pernet_operations, and then register a netdevice_notifier. Each time the netdevice_notifier is triggered, it'll do some stuff... including a lookup of its own pernet stuff with net_generic(). If the net_generic() call ever returns NULL, the caif code will BUG(). That doesn't seem *so* unreasonable, I suppose — it does seem like it should never happen. However, it *does* happen. When we clone a network namespace, setup_net() runs through all the pernet_operations one at a time. It gets to loopback before it gets to caif. And loopback_net_init() registers a netdevice... while caif hasn't been initialised. So the caif netdevice notifier triggers, and immediately goes BUG(). We could imagine a complex and overengineered solution to this generic class of problems, but this patch takes the simple approach. It just makes caif_device_notify() *not* go looking for its pernet data structures if the device it's being notified about isn't a caif device in the first place. Cc: stable@kernel.org Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Acked-by: Sjur Brændeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-25net: Unlock sock before calling sk_free()Thomas Gleixner1-0/+1
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-25libceph: force resend of osd requests if we skip an osdmapSage Weil1-10/+16
If we skip over one or more map epochs, we need to resend all osd requests because it is possible they remapped to other servers and then back. Signed-off-by: Sage Weil <sage@newdream.net>
2011-10-25ceph: use kernel DNS resolverNoah Watkins2-12/+116
Change ceph_parse_ips to take either names given as IP addresses or standard hostnames (e.g. localhost). The DNS lookup is done using the dns_resolver facility similar to its use in AFS, NFS, and CIFS. This patch defines CONFIG_CEPH_LIB_USE_DNS_RESOLVER that controls if this feature is on or off. Signed-off-by: Noah Watkins <noahwatkins@gmail.com> Signed-off-by: Sage Weil <sage@newdream.net>
2011-10-25ceph: fix ceph_monc_init memory leakNoah Watkins1-3/+7
failure clean up does not consider ceph_auth_init. Signed-off-by: Noah Watkins <noahwatkins@gmail.com> Signed-off-by: Sage Weil <sage@newdream.net>
2011-10-25libceph: warn on msg allocation failuresSage Weil1-0/+1
Any non-masked msg allocation failure should generate a warning and stack trace to the console. All of these need to eventually be replaced by safe preallocation or msgpools. Signed-off-by: Sage Weil <sage@newdream.net>
2011-10-25libceph: don't complain on msgpool alloc failuresSage Weil4-19/+32
The pool allocation failures are masked by the pool; there is no need to spam the console about them. (That's the whole point of having the pool in the first place.) Mark msg allocations whose failure is safely handled as such. Signed-off-by: Sage Weil <sage@newdream.net>
2011-10-25libceph: always preallocate mon connectionSage Weil1-25/+22
Allocate the mon connection on init. We already reuse it across reconnects. Remove now unnecessary (and incomplete) NULL checks. Signed-off-by: Sage Weil <sage@newdream.net>
2011-10-25libceph: create messenger with clientSage Weil1-23/+24
This simplifies the init/shutdown paths, and makes client->msgr available during the rest of the setup process. Signed-off-by: Sage Weil <sage@newdream.net>
2011-10-25Merge branch 'nfs-for-3.2' of git://git.linux-nfs.org/projects/trondmy/linux-nfsLinus Torvalds5-29/+31
* 'nfs-for-3.2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (26 commits) Check validity of cl_rpcclient in nfs_server_list_show NFS: Get rid of the nfs_rdata_mempool NFS: Don't rely on PageError in nfs_readpage_release_partial NFS: Get rid of unnecessary calls to ClearPageError() in read code NFS: Get rid of nfs_restart_rpc() NFS: Get rid of the unused nfs_write_data->flags field NFS: Get rid of the unused nfs_read_data->flags field NFSv4: Translate NFS4ERR_BADNAME into ENOENT when applied to a lookup NFS: Remove the unused "lookupfh()" version of nfs4_proc_lookup() NFS: Use the inode->i_version to cache NFSv4 change attribute information SUNRPC: Remove unnecessary export of rpc_sockaddr2uaddr SUNRPC: Fix rpc_sockaddr2uaddr nfs/super.c: local functions should be static pnfsblock: fix writeback deadlock pnfsblock: fix NULL pointer dereference pnfs: recoalesce when ld read pagelist fails pnfs: recoalesce when ld write pagelist fails pnfs: make _set_lo_fail generic pnfsblock: add missing rpc_put_mount and path_put SUNRPC/NFS: make rpc pipe upcall generic ...
2011-10-25Merge branch 'for-3.2' of git://linux-nfs.org/~bfields/linuxLinus Torvalds4-26/+46
* 'for-3.2' of git://linux-nfs.org/~bfields/linux: (103 commits) nfs41: implement DESTROY_CLIENTID operation nfsd4: typo logical vs bitwise negate for want_mask nfsd4: allow NFS4_SHARE_SIGNAL_DELEG_WHEN_RESRC_AVAIL | NFS4_SHARE_PUSH_DELEG_WHEN_UNCONTENDED nfsd4: seq->status_flags may be used unitialized nfsd41: use SEQ4_STATUS_BACKCHANNEL_FAULT when cb_sequence is invalid nfsd4: implement new 4.1 open reclaim types nfsd4: remove unneeded CLAIM_DELEGATE_CUR workaround nfsd4: warn on open failure after create nfsd4: preallocate open stateid in process_open1() nfsd4: do idr preallocation with stateid allocation nfsd4: preallocate nfs4_file in process_open1() nfsd4: clean up open owners on OPEN failure nfsd4: simplify process_open1 logic nfsd4: make is_open_owner boolean nfsd4: centralize renew_client() calls nfsd4: typo logical vs bitwise negate nfs: fix bug about IPv6 address scope checking nfsd4: more robust ignoring of WANT bits in OPEN nfsd4: move name-length checks to xdr nfsd4: move access/deny validity checks to xdr code ...
2011-10-25Merge branch 'pm-for-linus' of ↵Linus Torvalds3-3/+3
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm * 'pm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (63 commits) PM / Clocks: Remove redundant NULL checks before kfree() PM / Documentation: Update docs about suspend and CPU hotplug ACPI / PM: Add Sony VGN-FW21E to nonvs blacklist. ARM: mach-shmobile: sh7372 A4R support (v4) ARM: mach-shmobile: sh7372 A3SP support (v4) PM / Sleep: Mark devices involved in wakeup signaling during suspend PM / Hibernate: Improve performance of LZO/plain hibernation, checksum image PM / Hibernate: Do not initialize static and extern variables to 0 PM / Freezer: Make fake_signal_wake_up() wake TASK_KILLABLE tasks too PM / Hibernate: Add resumedelay kernel param in addition to resumewait MAINTAINERS: Update linux-pm list address PM / ACPI: Blacklist Vaio VGN-FW520F machine known to require acpi_sleep=nonvs PM / ACPI: Blacklist Sony Vaio known to require acpi_sleep=nonvs PM / Hibernate: Add resumewait param to support MMC-like devices as resume file PM / Hibernate: Fix typo in a kerneldoc comment PM / Hibernate: Freeze kernel threads after preallocating memory PM: Update the policy on default wakeup settings PM / VT: Cleanup #if defined uglyness and fix compile error PM / Suspend: Off by one in pm_suspend() PM / Hibernate: Include storage keys in hibernation image on s390 ...
2011-10-25batman-adv: unify hash_entry field position in tt_local/global_entryAntonio Quartulli1-2/+2
Function tt_response_fill_table() actually uses a tt_local_entry pointer to iterate either over the local or the global table entries (it depends on the what hash table is passed as argument). To iterate over such entries the hlist_for_each_entry_rcu() macro has to access their "hash_entry" field which MUST be at the same position in both the tt_global/local_entry structures. Reported-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Antonio Quartulli <ordex@autistici.org> Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
2011-10-25batman-adv: add sanity check when removing global ttsSimon Wunderlich1-0/+3
After removing the batman-adv module, the hash may be already gone when tt_global_del_orig() tries to clean the hash. This patch adds a sanity check to avoid this. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Tested-by: Alexey Fisher <bug-track@fisher-privat.net> Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
2011-10-25batman-adv: remove references for global tt entriesSimon Wunderlich1-1/+13
struct tt_global_entry holds a reference to an orig_node which must be decremented before deallocating the structure. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Tested-by: Alexey Fisher <bug-track@fisher-privat.net> Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
2011-10-25Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds285-5540/+14144
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1745 commits) dp83640: free packet queues on remove dp83640: use proper function to free transmit time stamping packets ipv6: Do not use routes from locally generated RAs |PATCH net-next] tg3: add tx_dropped counter be2net: don't create multiple RX/TX rings in multi channel mode be2net: don't create multiple TXQs in BE2 be2net: refactor VF setup/teardown code into be_vf_setup/clear() be2net: add vlan/rx-mode/flow-control config to be_setup() net_sched: cls_flow: use skb_header_pointer() ipv4: avoid useless call of the function check_peer_pmtu TCP: remove TCP_DEBUG net: Fix driver name for mdio-gpio.c ipv4: tcp: fix TOS value in ACK messages sent from TIME_WAIT rtnetlink: Add missing manual netlink notification in dev_change_net_namespaces ipv4: fix ipsec forward performance regression jme: fix irq storm after suspend/resume route: fix ICMP redirect validation net: hold sock reference while processing tx timestamps tcp: md5: add more const attributes Add ethtool -g support to virtio_net ... Fix up conflicts in: - drivers/net/Kconfig: The split-up generated a trivial conflict with removal of a stale reference to Documentation/networking/net-modules.txt. Remove it from the new location instead. - fs/sysfs/dir.c: Fairly nasty conflicts with the sysfs rb-tree usage, conflicting with Eric Biederman's changes for tagged directories.
2011-10-25Merge branch 'driver-core-next' of ↵Linus Torvalds1-1/+2
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core * 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (38 commits) mm: memory hotplug: Check if pages are correctly reserved on a per-section basis Revert "memory hotplug: Correct page reservation checking" Update email address for stable patch submission dynamic_debug: fix undefined reference to `__netdev_printk' dynamic_debug: use a single printk() to emit messages dynamic_debug: remove num_enabled accounting dynamic_debug: consolidate repetitive struct _ddebug descriptor definitions uio: Support physical addresses >32 bits on 32-bit systems sysfs: add unsigned long cast to prevent compile warning drivers: base: print rejected matches with DEBUG_DRIVER memory hotplug: Correct page reservation checking memory hotplug: Refuse to add unaligned memory regions remove the messy code file Documentation/zh_CN/SubmitChecklist ARM: mxc: convert device creation to use platform_device_register_full new helper to create platform devices with dma mask docs/driver-model: Update device class docs docs/driver-model: Document device.groups kobj_uevent: Ignore if some listeners cannot handle message dynamic_debug: make netif_dbg() call __netdev_printk() dynamic_debug: make netdev_dbg() call __netdev_printk() ...
2011-10-25Merge branch 'for-linus' of ↵Linus Torvalds3-8/+5
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (59 commits) MAINTAINERS: linux-m32r is moderated for non-subscribers linux@lists.openrisc.net is moderated for non-subscribers Drop default from "DM365 codec select" choice parisc: Kconfig: cleanup Kernel page size default Kconfig: remove redundant CONFIG_ prefix on two symbols cris: remove arch/cris/arch-v32/lib/nand_init.S microblaze: add missing CONFIG_ prefixes h8300: drop puzzling Kconfig dependencies MAINTAINERS: microblaze-uclinux@itee.uq.edu.au is moderated for non-subscribers tty: drop superfluous dependency in Kconfig ARM: mxc: fix Kconfig typo 'i.MX51' Fix file references in Kconfig files aic7xxx: fix Kconfig references to READMEs Fix file references in drivers/ide/ thinkpad_acpi: Fix printk typo 'bluestooth' bcmring: drop commented out line in Kconfig btmrvl_sdio: fix typo 'btmrvl_sdio_sd6888' doc: raw1394: Trivial typo fix CIFS: Don't free volume_info->UNC until we are entirely done with it. treewide: Correct spelling of successfully in comments ...
2011-10-24ipv6: Do not use routes from locally generated RAsAndreas Hofmeister1-0/+8
When hybrid mode is enabled (accept_ra == 2), the kernel also sees RAs generated locally. This is useful since it allows the kernel to auto-configure its own interface addresses. However, if 'accept_ra_defrtr' and/or 'accept_ra_rtr_pref' are set and the locally generated RAs announce the default route and/or other route information, the kernel happily inserts bogus routes with its own address as gateway. With this patch, adding routes from an RA will be skiped when the RAs source address matches any local address, just as if 'accept_ra_defrtr' and 'accept_ra_rtr_pref' were set to 0. Signed-off-by: Andreas Hofmeister <andi@collax.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-24net_sched: cls_flow: use skb_header_pointer()Eric Dumazet1-92/+96
Dan Siemon would like to add tunnelling support to cls_flow This preliminary patch introduces use of skb_header_pointer() to help this task, while avoiding skb head reallocation because of deep packet inspection. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-24ipv4: avoid useless call of the function check_peer_pmtuGao feng1-2/+1
In func ipv4_dst_check,check_peer_pmtu should be called only when peer is updated. So,if the peer is not updated in ip_rt_frag_needed,we can not inc __rt_peer_genid. Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-24Merge branch 'master' of ra.kernel.org:/pub/scm/linux/kernel/git/davem/netDavid S. Miller25-95/+268
2011-10-24TCP: remove TCP_DEBUGFlavio Leitner2-4/+0
It was enabled by default and the messages guarded by the define are useful. Signed-off-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-24net/9p: Convert net/9p protocol dumps to tracepointsAneesh Kumar K.V3-79/+54
This helps in more control over debugging. root@qemu-img-64:~# ls /pass/123 ls: cannot access /pass/123: No such file or directory root@qemu-img-64:~# cat /sys/kernel/debug/tracing/trace # tracer: nop # # TASK-PID CPU# TIMESTAMP FUNCTION # | | | | | ls-1536 [001] 70.928584: 9p_protocol_dump: clnt 18446612132784021504 P9_TWALK(tag = 1) 000: 16 00 00 00 6e 01 00 01 00 00 00 02 00 00 00 01 010: 00 03 00 31 32 33 00 00 00 ff ff ff ff 00 00 00 ls-1536 [001] 70.928587: <stack trace> => trace_9p_protocol_dump => p9pdu_finalize => p9_client_rpc => p9_client_walk => v9fs_vfs_lookup => d_alloc_and_lookup => walk_component => path_lookupat ls-1536 [000] 70.929696: 9p_protocol_dump: clnt 18446612132784021504 P9_RLERROR(tag = 1) 000: 0b 00 00 00 07 01 00 02 00 00 00 4e 03 00 02 00 010: 00 00 00 00 03 00 02 00 00 00 00 00 ff 43 00 00 ls-1536 [000] 70.929697: <stack trace> => trace_9p_protocol_dump => p9_client_rpc => p9_client_walk => v9fs_vfs_lookup => d_alloc_and_lookup => walk_component => path_lookupat => do_path_lookup Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
2011-10-24fs/9p: change an int to unsigned intDan Carpenter1-1/+2
Without this msize=4294967295 will result in a crash Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
2011-10-24fs/9p: Cleanup option parsing in 9pAneesh Kumar K.V1-7/+5
Instead of saying all integer argument option should be listed in the beginning move integer parsing to each option type. Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
2011-10-249p: move dereference after NULL checkDan Carpenter1-2/+2
We dereferenced "req->tc" and "req->rc" before checking for NULL. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
2011-10-24fs/9p: Update zero-copy implementation in 9pAneesh Kumar K.V6-331/+500
* remove lot of update to different data structure * add a seperate callback for zero copy request. * above makes non zero copy code path simpler * remove conditionalizing TREAD/TREADDIR/TWRITE in the zero copy path * Fix the dotu p9_check_errors with zero copy. Add sufficient doc around * Add support for both in and output buffers in zero copy callback * pin and unpin pages in the same context * use helpers instead of defining page offset and rest of page ourself * Fix mem leak in p9_check_errors * Remove 'E' and 'F' in p9pdu_vwritef Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
2011-10-24ipv4: tcp: fix TOS value in ACK messages sent from TIME_WAITEric Dumazet3-7/+11
There is a long standing bug in linux tcp stack, about ACK messages sent on behalf of TIME_WAIT sockets. In the IP header of the ACK message, we choose to reflect TOS field of incoming message, and this might break some setups. Example of things that were broken : - Routing using TOS as a selector - Firewalls - Trafic classification / shaping We now remember in timewait structure the inet tos field and use it in ACK generation, and route lookup. Notes : - We still reflect incoming TOS in RST messages. - We could extend MuraliRaja Muniraju patch to report TOS value in netlink messages for TIME_WAIT sockets. - A patch is needed for IPv6 Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-24rtnetlink: Add missing manual netlink notification in dev_change_net_namespacesEric W. Biederman1-0/+1
Renato Westphal noticed that since commit a2835763e130c343ace5320c20d33c281e7097b7 "rtnetlink: handle rtnl_link netlink notifications manually" was merged we no longer send a netlink message when a networking device is moved from one network namespace to another. Fix this by adding the missing manual notification in dev_change_net_namespaces. Since all network devices that are processed by dev_change_net_namspaces are in the initialized state the complicated tests that guard the manual rtmsg_ifinfo calls in rollback_registered and register_netdevice are unnecessary and we can just perform a plain notification. Cc: stable@kernel.org Tested-by: Renato Westphal <renatowestphal@gmail.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-24ipv4: fix ipsec forward performance regressionYan, Zheng1-7/+7
There is bug in commit 5e2b61f(ipv4: Remove flowi from struct rtable). It makes xfrm4_fill_dst() modify wrong data structure. Signed-off-by: Zheng Yan <zheng.z.yan@intel.com> Reported-by: Kim Phillips <kim.phillips@freescale.com> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-24route: fix ICMP redirect validationFlavio Leitner1-5/+31
The commit f39925dbde7788cfb96419c0f092b086aa325c0f (ipv4: Cache learned redirect information in inetpeer.) removed some ICMP packet validations which are required by RFC 1122, section 3.2.2.2: ... A Redirect message SHOULD be silently discarded if the new gateway address it specifies is not on the same connected (sub-) net through which the Redirect arrived [INTRO:2, Appendix A], or if the source of the Redirect is not the current first-hop gateway for the specified destination (see Section 3.3.1). Signed-off-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-24net: hold sock reference while processing tx timestampsRichard Cochran1-2/+10
The pair of functions, * skb_clone_tx_timestamp() * skb_complete_tx_timestamp() were designed to allow timestamping in PHY devices. The first function, called during the MAC driver's hard_xmit method, identifies PTP protocol packets, clones them, and gives them to the PHY device driver. The PHY driver may hold onto the packet and deliver it at a later time using the second function, which adds the packet to the socket's error queue. As pointed out by Johannes, nothing prevents the socket from disappearing while the cloned packet is sitting in the PHY driver awaiting a timestamp. This patch fixes the issue by taking a reference on the socket for each such packet. In addition, the comments regarding the usage of these function are expanded to highlight the rule that PHY drivers must use skb_complete_tx_timestamp() to release the packet, in order to release the socket reference, too. These functions first appeared in v2.6.36. Reported-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Richard Cochran <richard.cochran@omicron.at> Cc: <stable@vger.kernel.org> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Reviewed-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-24tcp: md5: add more const attributesEric Dumazet2-12/+13
Now tcp_md5_hash_header() has a const tcphdr argument, we can add more const attributes to callers. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-24tcp: md5: dont write skb head in tcp_md5_hash_header()Eric Dumazet1-6/+8
tcp_md5_hash_header() writes into skb header a temporary zero value, this might confuse other users of this area. Since tcphdr is small (20 bytes), copy it in a temporary variable and make the change in the copy. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-22net: use INET_ECN_MASK instead of hardcoded 3Maciej Żenczykowski1-2/+3
Signed-off-by: Maciej Żenczykowski <maze@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-21tcp: add const qualifiers where possibleEric Dumazet9-131/+136
Adding const qualifiers to pointers can ease code review, and spot some bugs. It might allow compiler to optimize code further. For example, is it legal to temporary write a null cksum into tcphdr in tcp_md5_hash_header() ? I am afraid a sniffer could catch the temporary null value... Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-21dev: use name hash for dev_seq_opsMihai Maruseac1-15/+69
Instead of using the dev->next chain and trying to resync at each call to dev_seq_start, use the name hash, keeping the bucket and the offset in seq->private field. Tests revealed the following results for ifconfig > /dev/null * 1000 interfaces: * 0.114s without patch * 0.089s with patch * 3000 interfaces: * 0.489s without patch * 0.110s with patch * 5000 interfaces: * 1.363s without patch * 0.250s with patch * 128000 interfaces (other setup): * ~100s without patch * ~30s with patch Signed-off-by: Mihai Maruseac <mmaruseac@ixiacom.com> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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