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2011-08-01dccp ccid-2: prevent cwnd > Sequence WindowSamuel Jero
Add a check to prevent CCID-2 from increasing the cwnd greater than the Sequence Window. When the congestion window becomes bigger than the Sequence Window, CCID-2 will attempt to keep more data in the network than the DCCP Sequence Window code considers possible. This results in the Sequence Window code issuing a Sync, thereby inducing needless overhead. Further, if this occurs at the sender, CCID-2 will never detect the problem because the Acks it receives will indicate no losses. I have seen this cause a drop of 1/3rd in throughput for a connection. Also add code to adjust the Sequence Window to be about 5 times the number of packets in the network (RFC 4340, 7.5.2) and to adjust the Ack Ratio so that the remote Sequence Window will hold about 5 times the number of packets in the network. This allows the congestion window to increase correctly without being limited by the Sequence Window. Signed-off-by: Samuel Jero <sj323707@ohio.edu> Acked-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
2011-08-01dccp ccid-2: use feature-negotiation to report Ack Ratio changesGerrit Renker
This uses the new feature-negotiation framework to signal Ack Ratio changes, as required by RFC 4341, sec. 6.1.2. That raises some problems with CCID-2, which at the moment can not cope gracefully with Ack Ratios > 1. Since these issues are not directly related to feature negotiation, they are marked by a FIXME. Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by: Samuel Jero <sj323707@ohio.edu> Acked-by: Ian McDonald <ian.mcdonald@jandi.co.uk>
2011-08-01dccp: send Confirm options only onceSamuel Jero
If a connection is in the OPEN state, remove feature negotiation Confirm options from the list of options after sending them once; as such options are NOT supposed to be retransmitted and are ONLY supposed to be sent in response to a Change option (RFC 4340 6.2). Signed-off-by: Samuel Jero <sj323707@ohio.edu> Acked-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
2011-08-01dccp: support for exchanging of NN options in established state 2/2Gerrit Renker
This patch adds the receiver side and the (fast-path) activation part for dynamic changes of non-negotiable (NN) parameters in (PART)OPEN state. Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by: Samuel Jero <sj323707@ohio.edu> Acked-by: Ian McDonald <ian.mcdonald@jandi.co.uk>
2011-08-01dccp: support for the exchange of NN options in established state 1/2Gerrit Renker
In contrast to static feature negotiation at the begin of a connection, this patch introduces support for exchange of dynamically changing options. Such an update/exchange is necessary in at least two cases: * CCID-2's Ack Ratio (RFC 4341, 6.1.2) which changes during the connection; * Sequence Window values that, as per RFC 4340, 7.5.2, should be sent "as the connection progresses". Both are non-negotiable (NN) features, which means that no new capabilities are negotiated, but rather that changes in known parameters are brought up-to-date at either end. Thse characteristics are reflected by the implementation: * only NN options can be exchanged after connection setup; * an ack is scheduled directly after activation to speed up the update; * CCIDs may request changes to an NN feature even if a negotiation for that feature is already underway: this is required by CCID-2, where changes in cwnd necessitate Ack Ratio changes, such that the previous Ack Ratio (which is still being negotiated) would cause irrecoverable RTO timeouts (thanks to work by Samuel Jero). Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by: Samuel Jero <sj323707@ohio.edu> Acked-by: Ian McDonald <ian.mcdonald@jandi.co.uk>
2011-08-01CIFS: Cleanup demupltiplex thread exiting codePavel Shilovsky
Reviewed-and-Tested-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Pavel Shilovsky <piastryyy@gmail.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2011-08-01CIFS: Move mid search to a separate functionPavel Shilovsky
Reviewed-and-Tested-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Pavel Shilovsky <piastryyy@gmail.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2011-08-01CIFS: Move RFC1002 check to a separate functionPavel Shilovsky
Reviewed-and-Tested-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Pavel Shilovsky <piastryyy@gmail.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2011-08-01CIFS: Simplify socket reading in demultiplex threadPavel Shilovsky
Move reading to separate function and remove csocket variable. Also change semantic in a little: goto incomplete_rcv only when we get -EAGAIN (or a familiar error) while reading rfc1002 header. In this case we don't check for echo timeout when we don't get whole header at once, as it was before. Reviewed-and-Tested-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Pavel Shilovsky <piastryyy@gmail.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2011-08-01ext4: use ext4_kvzalloc()/ext4_kvmalloc() for s_group_desc and s_group_infoTheodore Ts'o
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2011-08-01ext4: introduce ext4_kvmalloc(), ext4_kzalloc(), and ext4_kvfree()Theodore Ts'o
Introduce new helper functions which try kmalloc, and then fall back to vmalloc if necessary, and use them for allocating and deallocating s_flex_groups. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2011-08-01CIFS: Move buffer allocation to a separate functionPavel Shilovsky
Reviewed-and-Tested-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Pavel Shilovsky <piastryyy@gmail.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2011-08-01gpio_msm: Move Qualcomm MSM v2 gpio driver into driversDavid Brown
Migrate the driver for the v7-based MSM chips into drivers/gpio. The driver is unchanged, only moved. Change-Id: I810db5b50b71cdca4e869aa0d0310f7f48781a55 Signed-off-by: David Brown <davidb@codeaurora.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
2011-08-01gpio_msm: Move Qualcomm v6 MSM driver into driversDavid Brown
Migrate the driver for the v6-based MSM chips into drivers/gpio. The driver is unchanged, only moved. Change-Id: I03ba597b95b4d62b42da112a8efac88d67aa40f9 Signed-off-by: David Brown <davidb@codeaurora.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
2011-08-01msm: gpio: Fold register defs into C fileDavid Brown
No need to have a separate header file containing only register definitions that are used by a single driver. Fold these into the gpio driver. Signed-off-by: David Brown <davidb@codeaurora.org>
2011-08-01msm: gpiomux: Move public API to public headerDavid Brown
The gpiomux.h header contains some SOC ifdefs. However, the API that is actually used by the GPIO driver only uses two functions that are general. Move these general definitions into a public header file. Change-Id: Ia5df8af87dba268225598d56908e523bcfc24ef6 Signed-off-by: David Brown <davidb@codeaurora.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
2011-08-01msm: gpio: Remove ifdefs on gpio chip registersDavid Brown
Select the GPIO register configuration at runtime rather than through idefs. Change-Id: I02ea0a3d61bc81669f32097c32420f0688552231 Signed-off-by: David Brown <davidb@codeaurora.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
2011-08-01msm: gpio: Remove chip-specific register definitionsDavid Brown
Put an SOC prefix on each GPIO register definition, eliminating the need to have SOC ifdefs around the definitions. Change-Id: I5a01fd328a89ce1be610847934d6e118f5465e42 Signed-off-by: David Brown <davidb@codeaurora.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
2011-08-01msm: Remove chip-ifdefs for GPIO io mappingsDavid Brown
The two GPIO controllers are always mapped to the same virtual address across all MSM devices. Instead of selecting this at compile time, determine the physical address at runtime, eliminating yet something else preventing multiple MSM targets from being compiled into the same kernel. Change-Id: I1672219d978ab6243526adeda6badf49472baa27 Signed-off-by: David Brown <davidb@codeaurora.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
2011-08-01msm: gpio: Remove unsupported devicesDavid Brown
The MSM7x25 and MSM7x27 devices are not yet supported in the kernel. Remove #ifdef-based tables supporting these chips for now. Change-Id: I4d9f5abc4cc0942ce75a067097b072489493c1b8 Signed-off-by: David Brown <davidb@codeaurora.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
2011-08-01OMAP: DSS2: HDMI: fix hdmi clock nameTomi Valkeinen
The HDMI clock (hdmi_clk) is missing in the current OMAP4 HWMOD database. Fix this in the DSS driver by using the old clock name (dss_48mhz_clk). Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-08-01HACK: OMAP: DSS2: clk hack for OMAP2/3Tomi Valkeinen
The HWMOD data for OMAP2 and 3 are currently not up to date regarding DSS (OMAP4 HWMOD data is fine). This patch makes the DSS driver to get the opt clocks needed for OMAP2/3 with the old clock names, thus allowing DSS driver to use runtime PM. The HWMOD databases should be fixes ASAP, and this patch can be reverted after that. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-08-01of: address: use resource_size helperFelipe Balbi
that should be the approved way of calculating the size of resources. No functional changes. Cc: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-08-01ext4: use the correct error exit path in ext4_init_inode_table()Yongqiang Yang
This patch lets ext4_init_inode_table() handle errors right. ext4_init_inode_table() should down_write() alloc_sem which has been up_write()ed and stop the started journal handle. Signed-off-by: Yongqiang Yang <xiaoqiangnk@gmail.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2011-08-01sch_sfq: fix sfq_enqueue()Eric Dumazet
commit 8efa88540635 (sch_sfq: avoid giving spurious NET_XMIT_CN signals) forgot to call qdisc_tree_decrease_qlen() to signal upper levels that a packet (from another flow) was dropped, leading to various problems. With help from Michal Soltys and Michal Pokrywka, who did a bisection. Bugzilla ref: https://bugzilla.kernel.org/show_bug.cgi?id=39372 Debian ref: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=631945 Reported-by: Lucas Bocchi <lucas.bocchi@gmail.com> Reported-and-bisected-by: Michal Pokrywka <wolfmoon@o2.pl> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> CC: Michal Soltys <soltys@ziu.info> Acked-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-01drivers/net/niu.c: adjust array indexJulia Lawall
Convert array index from the loop bound to the loop index. A simplified version of the semantic patch that fixes this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression e1,e2,ar; @@ for(e1 = 0; e1 < e2; e1++) { <... ar[ - e2 + e1 ] ...> } // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-01net: adjust array indexJulia Lawall
Convert array index from the loop bound to the loop index. A simplified version of the semantic patch that fixes this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression e1,e2,ar; @@ for(e1 = 0; e1 < e2; e1++) { <... ar[ - e2 + e1 ] ...> } // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-01MAINTAINERS: Remove Pekka Savola from ipv6.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-01ALSA: asihpi - Don't leak firmware if mem alloc failsJesper Juhl
We leak the memory allocated to 'firmware' when we fail to release_firmware() after a kmalloc() failure in hpi_dsp_code_open(). This patch should take care of the leak. Signed-off-by: Jesper Juhl <jj@chaosbits.net> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-08-01ipg: Use constJoe Perches
Make a couple of declarations const to save some data space. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-01ipg: Use current logging stylesJoe Perches
Add and use pr_fmt, pr_<level> and netdev_<level>. Convert printks with %[n].[n]x to %nx to be shorter and clearer. Consolidate printks to use a single printk rather than continued printks without KERN_CONT. Removed unnecessary trailing periods. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-01qlcnic: Added debug infoSritej Velaga
Now printing states of essential registers once fw hang has been detected. Bumped up the driver version to 5.0.22 Signed-off-by: Sritej Velaga <sritej.velaga@qlogic.com> Signed-off-by: Anirban Chakraborty <anirban.chakraborty@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-01qlcnic: Move get template from probe to start fwSritej Velaga
Place for gathering FW dump template has been moved to the FW restart path so that the driver can check if a newer FW version is available and in that case it replaces the existing FW dump template with the newer template. Signed-off-by: Sritej Velaga <sritej.velaga@qlogic.com> Signed-off-by: Anirban Chakraborty <anirban.chakraborty@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-01qlcnic: Fix delay in reset pathSritej Velaga
Driver should not check for heart beat anymore when FW is hung, rather it should restart the FW. Signed-off-by: Sritej Velaga <sritej.velaga@qlogic.com> Signed-off-by: Anirban Chakraborty <anirban.chakraborty@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-01qlcnic: FW dump related changesAnirban Chakraborty
o Added code to support FW reset without invoking the dump o Fixed the return value of the dump data size if dump is not available. Signed-off-by: Anirban Chakraborty <anirban.chakraborty@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-01qlcnic: Fix enviroment variable for udev event generation during FW dumpAnirban Chakraborty
Driver was not generating the environment variable for the FW dump event correctly. Fix it by formatting it properly. Signed-off-by: Anirban Chakraborty <anirban.chakraborty@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-01bna: HW Interface Init UpdateRasesh Mody
Change details: - Split the hw interface into common and asic specific to support new asic in the future. - Fix bfa_ioc_ct_isr_mode_set() to also include the case that we are already in the desired msix mode. Signed-off-by: Rasesh Mody <rmody@brocade.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-01bna: Remove Unnecessary CNA CheckRasesh Mody
Change details: - ioc->cna is always set to 1 for eth functions, remove the check that asserts IOC is in CNA mode in bfa_ioc_firmware_lock() and bfa_ioc_firmware_unlock() in bfa_ioc_ct.c. Signed-off-by: Rasesh Mody <rmody@brocade.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-01ip6tnl: avoid touching dst refcount in ip6_tnl_xmit2()Eric Dumazet
Even using percpu stats, we still hit tunnel dst_entry refcount in ip6_tnl_xmit2() Since we are in RCU locked section, we can use skb_dst_set_noref() and avoid these atomic operations, leaving dst shared on cpus. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-01ipv6: avoid a dst_entry refcount change in ipv6_destopt_rcv()Eric Dumazet
ipv6_destopt_rcv() runs with rcu_read_lock(), so there is no need to take a temporay reference on dst_entry, even if skb is freed by ip6_parse_tlv() Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-01ipv6: use RCU in inet6_csk_xmit()Eric Dumazet
Use RCU to avoid changing dst_entry refcount in fast path. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-01ipv6: some RCU conversionsEric Dumazet
ICMP and ND are not fast path, but still we can avoid changing idev refcount, using RCU. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-01be2net: use stats-sync to read/write 64-bit statsSathya Perla
64-bit stats in be2net are written/read as follows using the stats-sync interface for safe access in 32-bit archs: 64-bit sync writer reader stats ------------------------------------------------------------------------------ tx_stats tx_stats->sync be_xmit be_get_stats64, ethtool tx-compl tx_stats->sync_compl tx-compl-processing ethtool rx-stats rx_stats->sync rx-compl-processing be_get_stats64, ethtool, eqd-update This patch is based on Stephen Hemminger's earlier patch on the same issue... Signed-off-by: Sathya Perla <sathya.perla@emulex.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-01be2net: cleanup and refactor stats codeSathya Perla
In preparation for 64-bit stats interface, the following cleanups help streamline the code: 1) made some more rx/tx stats stored by driver 64 bit 2) made some HW stas (err/drop counters) stored in be_drv_stats 32 bit to keep the code simple as BE provides 32-bit counters only. 3) removed duplication of netdev stats in ethtool 4) removed some un-necessary stats and fixed some names Signed-off-by: Sathya Perla <sathya.perla@emulex.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-01Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/netDavid S. Miller
2011-08-01xfs: Fix build breakage in xfs_iops.c when CONFIG_FS_POSIX_ACL is not setMarkus Trippelsdorf
commit 4e34e719e45, that takes the ACL checks to common code, accidentely broke the build when CONFIG_FS_POSIX_ACL is not set: CC fs/xfs/linux-2.6/xfs_iops.o fs/xfs/linux-2.6/xfs_iops.c:1025:14: error: ‘xfs_get_acl’ undeclared here (not in a function) Fix this by declaring xfs_get_acl a static inline function. Signed-off-by: Markus Trippelsdorf <markus@trippelsdorf.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-08-01VFS: Reorganise shrink_dcache_for_umount_subtree() after demise of dcache_lockDavid Howells
Reorganise shrink_dcache_for_umount_subtree() in light of the demise of dcache_lock. Without that dcache_lock, there is no need for the batching of removal of dentries from the system under it (we wanted to make intensive use of the locked data whilst we held it, but didn't want to hold it for long at a time). This works, provided the preceding patch is correct in its removal of locking on dentry->d_lock on the basis that no one should be locking these dentries any more as the whole superblock is defunct. With this patch, the calls to dentry_lru_del() and __d_shrink() are placed at the point where each dentry is detached handled. It is possible that, as an alternative, the batching should still be done - but only for dentry_lru_del() of all a dentry's children in one go. In such a case, the batching would be done under dcache_lru_lock. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-08-01VFS: Remove dentry->d_lock locking from shrink_dcache_for_umount_subtree()David Howells
Locks of the dcache_lock were replaced by locks of dentry->d_lock in commits such as: 2304450783dfde7b0b94ae234edd0dbffa865073 2fd6b7f50797f2e993eea59e0a0b8c6399c811dc as part of the RCU-based pathwalk changes, despite the fact that the caller (shrink_dcache_for_umount()) notes in the banner comment the reasons that d_lock is not necessary in these functions: /* * destroy the dentries attached to a superblock on unmounting * - we don't need to use dentry->d_lock because: * - the superblock is detached from all mountings and open files, so the * dentry trees will not be rearranged by the VFS * - s_umount is write-locked, so the memory pressure shrinker will ignore * any dentries belonging to this superblock that it comes across * - the filesystem itself is no longer permitted to rearrange the dentries * in this superblock */ So remove these locks. If the locks are actually necessary, then this banner comment should be altered instead. The hash table chains are protected by 1-bit locks in the hash table heads, so those shouldn't be a problem. Note that to make this work, __d_drop() has to be split so that the RCUwalk barrier can be avoided. This causes problems otherwise as it has an assertion that dentry->d_lock is locked - but there is no need for that as no one else can be trying to access this dentry, except to step over it (and that should be handled by d_free(), I think). Signed-off-by: David Howells <dhowells@redhat.com> Cc: Nick Piggin <npiggin@kernel.dk> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-08-01VFS: Remove detached-dentry counter from shrink_dcache_for_umount_subtree()David Howells
Remove the detached-dentry counter from shrink_dcache_for_umount_subtree() as the value it computes is no longer used as of commit 312d3ca856d369bb04d0443846b85b4cdde6fa8a which made the nr_dentry counters summed per-CPU rather than global atomic. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-08-01switch posix_acl_chmod() to umode_tAl Viro
again, that's what all callers pass to it Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
generated by cgit (git 2.34.1) at 2025-09-13 11:11:22 +0000