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* GFS2: Fix locking bug in failed shared to exclusive conversionBenjamin Marzinski2009-03-242-3/+5
| | | | | | | | | | | | | | | | After calling out to the dlm, GFS2 sets the new state of a glock to gl_target in gdlm_ast(). However, gl_target is not always the lock state that was requested. If a conversion from shared to exclusive fails, finish_xmote() will call do_xmote() with LM_ST_UNLOCKED, instead of gl->gl_target, so that it can reacquire the lock in exlusive the next time around. In this case, setting the lock to gl_target in gdlm_ast() will make GFS2 think that it has the glock in exclusive mode, when really, it doesn't have the glock locked at all. This patch adds a new field to the gfs2_glock structure, gl_req, to track the mode that was requested. Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* GFS2: Pagecache usage optimization on GFS2Hisashi Hifumi2009-03-241-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I introduced "is_partially_uptodate" aops for GFS2. A page can have multiple buffers and even if a page is not uptodate, some buffers can be uptodate on pagesize != blocksize environment. This aops checks that all buffers which correspond to a part of a file that we want to read are uptodate. If so, we do not have to issue actual read IO to HDD even if a page is not uptodate because the portion we want to read are uptodate. "block_is_partially_uptodate" function is already used by ext2/3/4. With the following patch random read/write mixed workloads or random read after random write workloads can be optimized and we can get performance improvement. I did a performance test using the sysbench. #sysbench --num-threads=16 --max-requests=200000 --test=fileio --file-num=1 --file-block-size=8K --file-total-size=2G --file-test-mode=rndrw --file-fsync-freq=0 --file-rw-ratio=1 run -2.6.29-rc6 Test execution summary: total time: 202.6389s total number of events: 200000 total time taken by event execution: 2580.0480 per-request statistics: min: 0.0000s avg: 0.0129s max: 49.5852s approx. 95 percentile: 0.0462s -2.6.29-rc6-patched Test execution summary: total time: 177.8639s total number of events: 200000 total time taken by event execution: 2419.0199 per-request statistics: min: 0.0000s avg: 0.0121s max: 52.4306s approx. 95 percentile: 0.0444s arch: ia64 pagesize: 16k blocksize: 4k Signed-off-by: Hisashi Hifumi <hifumi.hisashi@oss.ntt.co.jp> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* GFS2: fix sparse warning: Should it be static?Hannes Eder2009-03-241-1/+2
| | | | | | | | | | Impact: Make symbol static. Fix this sparse warning: fs/gfs2/rgrp.c:188:5: warning: symbol 'gfs2_bitfit' was not declared. Should it be static? Signed-off-by: Hannes Eder <hannes@hanneseder.net> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* GFS2: fix sparse warnings: constant is so big it is ...Hannes Eder2009-03-241-6/+6
| | | | | | | | | | | | Fix this sparse warnings: fs/gfs2/rgrp.c:156:23: warning: constant 0xffffffffffffffff is so big it is unsigned long long fs/gfs2/rgrp.c:157:23: warning: constant 0xaaaaaaaaaaaaaaaa is so big it is unsigned long long fs/gfs2/rgrp.c:158:23: warning: constant 0x5555555555555555 is so big it is long long fs/gfs2/rgrp.c:194:20: warning: constant 0x5555555555555555 is so big it is long long fs/gfs2/rgrp.c:204:44: warning: constant 0x5555555555555555 is so big it is long long Signed-off-by: Hannes Eder <hannes@hanneseder.net> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* GFS2: Support quota/noquota mount argumentsSteven Whitehouse2009-03-241-0/+6
| | | | | | | | This adds support for "quota" and "noquota" mount options in addition to the existing "quota=on/off/account" so that we are compatible with the names by which these options are more generally known. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* GFS2: Fix alignment issue and tidy gfs2_bitfitSteven Whitehouse2009-03-241-62/+70
| | | | | | | | | An alignment issue with the existing bitfit algorithm was reported on IA64. This patch attempts to fix that, and also to tidy up the code a bit. There is now more documentation about how this works and it has survived a number of different tests. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* GFS2: Add a "demote a glock" interface to sysfsSteven Whitehouse2009-03-245-4/+61
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds a sysfs file called demote_rq to GFS2's per filesystem directory. Its possible to use this file to demote arbitrary glocks in exactly the same way as if a request had come in from a remote node. This is intended for testing issues relating to caching of data under glocks. Despite that, the interface is generic enough to send requests to any type of glock, but be careful as its not always safe to send an arbitrary message to an arbitrary glock. For that reason and to prevent DoS, this interface is restricted to root only. The messages look like this: <type>:<glocknumber> <mode> Example: echo -n "2:13324 EX" >/sys/fs/gfs2/unity:myfs/demote_rq Which means "please demote inode glock (type 2) number 13324 so that I can get an EX (exclusive) lock". The lock modes are those which would normally be sent by a remote node in its callback so if you want to unlock a glock, you use EX, to demote to shared, use SH or PR (depending on whether you like GFS2 or DLM lock modes better!). If the glock doesn't exist, you'll get -ENOENT returned. If the arguments don't make sense, you'll get -EINVAL returned. The plan is that this interface will be used in combination with the blktrace patch which I recently posted for comments although it is, of course, still useful in its own right. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* GFS2: Expose UUID via sysfs/ueventSteven Whitehouse2009-03-243-0/+39
| | | | | | | | | | | | | Since we have a UUID, we ought to expose it to the user via sysfs and uevents. We already have the fs name in both of these places (a combination of the lock proto and lock table name) so if we add the UUID as well, we have a full set. For older filesystems (i.e. those created before mkfs.gfs2 was writing UUIDs by default) the sysfs file will appear zero length, and no UUID env var will be added to the uevents. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* GFS2: Support generation of discard requestsSteven Whitehouse2009-03-244-1/+68
| | | | | | | | | | | | | | | | | | | | This patch allows GFS2 to generate discard requests for blocks which are no longer useful to the filesystem (i.e. those which have been freed as the result of an unlink operation). The requests are generated at the time which those blocks become available for reuse in the filesystem. In order to use this new feature, you have to specify the "discard" mount option. The code coalesces adjacent blocks into a single extent when generating the discard requests, thus generating the minimum number. If an error occurs when the request has been sent to the block device, then it will print a message and turn off the requests for that filesystem. If the problem is temporary, then you can use remount to turn the option back on again. There is also a nodiscard mount option so that you can use remount to turn discard requests off, if required. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* GFS2: Fix deadlock on journal flushSteven Whitehouse2009-03-243-27/+34
| | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes a deadlock when the journal is flushed and there are dirty inodes other than the one which caused the journal flush. Originally the journal flushing code was trying to obtain the transaction glock while running the flush code for an inode glock. We no longer require the transaction glock at this point in time since we know that any attempt to get the transaction glock from another node will result in a journal flush. So if we are flushing the journal, we can be sure that the transaction lock is still cached from when the transaction was started. By inlining a version of gfs2_trans_begin() (minus the bit which gets the transaction glock) we can avoid the deadlock problems caused if there is a demote request queued up on the transaction glock. In addition I've also moved the umount rwsem so that it covers the glock workqueue, since it all demotions are done by this workqueue now. That fixes a bug on umount which I came across while fixing the original problem. Reported-by: David Teigland <teigland@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* GFS2: Fix error path ref counting for root inodeSteven Whitehouse2009-03-241-0/+2
| | | | | | | | | We were keeping hold of an extra ref to the root inode in one of the error paths, that resulted in a hang. Reported-by: Nate Straz <nstraz@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com> Tested-by: Robert Peterson <rpeterso@redhat.com>
* GFS2: Remove unused field from glockSteven Whitehouse2009-03-242-3/+0
| | | | | | | | The time stamp field is unused in the glock now that we are using a shrinker, so that we can remove it and save sizeof(unsigned long) bytes in each glock. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* GFS2: Merge lock_dlm module into GFS2Steven Whitehouse2009-03-2442-2447/+819
| | | | | | | | | | | | | | | | | | | | | | | | | | | This is the big patch that I've been working on for some time now. There are many reasons for wanting to make this change such as: o Reducing overhead by eliminating duplicated fields between structures o Simplifcation of the code (reduces the code size by a fair bit) o The locking interface is now the DLM interface itself as proposed some time ago. o Fewer lookups of glocks when processing replies from the DLM o Fewer memory allocations/deallocations for each glock o Scope to do further optimisations in the future (but this patch is more than big enough for now!) Please note that (a) this patch relates to the lock_dlm module and not the DLM itself, that is still a separate module; and (b) that we retain the ability to build GFS2 as a standalone single node filesystem with out requiring the DLM. This patch needs a lot of testing, hence my keeping it I restarted my -git tree after the last merge window. That way, this has the maximum exposure before its merged. This is (modulo a few minor bug fixes) the same patch that I've been posting on and off the the last three months and its passed a number of different tests so far. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* GFS2: Remove "double" locking in quotaSteven Whitehouse2009-03-243-28/+14
| | | | | | | | We only really need a single spin lock for the quota data, so lets just use the lru lock for now. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com> Cc: Abhijith Das <adas@redhat.com>
* GFS2: change gfs2_quota_scan into a shrinkerAbhijith Das2009-03-247-73/+114
| | | | | | | | Deallocation of gfs2_quota_data objects now happens on-demand through a shrinker instead of routinely deallocating through the quotad daemon. Signed-off-by: Abhijith Das <adas@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* GFS2: Bring back lvb-related stuff to lock_nolock to support quotasAbhijith Das2009-03-241-0/+82
| | | | | | | | | The quota code uses lvbs and this is currently not implemented in lock_nolock, thereby causing panics when quota is enabled with lock_nolock. This patch adds the relevant bits. Signed-off-by: Abhijith Das <adas@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* GFS2: Fix remount argument parsingSteven Whitehouse2009-03-245-133/+73
| | | | | | | | | | | | The following patch fixes an issue relating to remount and argument parsing. After this fix is applied, remount becomes atomic in that it either succeeds changing the mount to the new state, or it fails and leaves it in the old state. Previously it was possible for the parsing of options to fail part way though and for the fs to be left in a state where some of the new arguments had been applied, but some had not. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* Linux 2.6.29Linus Torvalds2009-03-231-2/+2
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* Build with -fno-dwarf2-cfi-asmKyle McMartin2009-03-231-0/+3
| | | | | | | | | | | | | | | | | | | With a sufficiently new compiler and binutils, code which wasn't previously generating .eh_frame sections has begun to. Certain architectures (powerpc, in this case) may generate unexpected relocation formats in response to this, preventing modules from loading. While the new relocation types should probably be handled, revert to the previous behaviour with regards to generation of .eh_frame sections. (This was reported against Fedora, which appears to be the only distro doing any building against gcc-4.4 at present: RH bz#486545.) Signed-off-by: Kyle McMartin <kyle@redhat.com> Acked-by: Roland McGrath <roland@redhat.com> Cc: Alexandre Oliva <aoliva@redhat.com> Cc: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* trivial: fix orphan dates in ext2 documentationJody McIntyre2009-03-231-2/+3
| | | | | | | | | Revert the change to the orphan dates of Windows 95, DOS, compression. Add a new orphan date for OS/2. Signed-off-by: Jody McIntyre <scjody@sun.com> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2009-03-2339-121/+314
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (32 commits) ucc_geth: Fix oops when using fixed-link support dm9000: locking bugfix net: update dnet.c for bus_id removal dnet: DNET should depend on HAS_IOMEM dca: add missing copyright/license headers nl80211: Check that function pointer != NULL before using it sungem: missing net_device_ops be2net: fix to restore vlan ids into BE2 during a IF DOWN->UP cycle be2net: replenish when posting to rx-queue is starved in out of mem conditions bas_gigaset: correctly allocate USB interrupt transfer buffer smsc911x: reset last known duplex and carrier on open sh_eth: Fix mistake of the address of SH7763 sh_eth: Change handling of IRQ netns: oops in ip[6]_frag_reasm incrementing stats net: kfree(napi->skb) => kfree_skb net: fix sctp breakage ipv6: fix display of local and remote sit endpoints net: Document /proc/sys/net/core/netdev_budget tulip: fix crash on iface up with shirq debug virtio_net: Make virtio_net support carrier detection ...
| * ucc_geth: Fix oops when using fixed-link supportAnton Vorontsov2009-03-222-26/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit b1c4a9dddf09fe99b8f88252718ac5b357363dc4 ("ucc_geth: Change uec phy id to the same format as gianfar's") introduced a regression in the ucc_geth driver that causes this oops when fixed-link is used: Unable to handle kernel paging request for data at address 0x00000000 Faulting instruction address: 0xc0151270 Oops: Kernel access of bad area, sig: 11 [#1] TMCUTU NIP: c0151270 LR: c0151270 CTR: c0017760 REGS: cf81fa60 TRAP: 0300 Not tainted (2.6.29-rc8) MSR: 00009032 <EE,ME,IR,DR> CR: 24024042 XER: 20000000 DAR: 00000000, DSISR: 20000000 TASK = cf81cba0[1] 'swapper' THREAD: cf81e000 GPR00: c0151270 cf81fb10 cf81cba0 00000000 c0272e20 c025f354 00001e80 cf86b08c GPR08: d1068200 cffffb74 06000000 d106c200 42024042 10085148 0fffd000 0ffc81a0 GPR16: 00000001 00000001 00000000 007ffeb0 00000000 0000c000 cf83f36c cf83f000 GPR24: 00000030 cf83f360 cf81fb20 00000000 d106c200 20000000 00001e80 cf83f360 NIP [c0151270] ucc_geth_open+0x330/0x1efc LR [c0151270] ucc_geth_open+0x330/0x1efc Call Trace: [cf81fb10] [c0151270] ucc_geth_open+0x330/0x1efc (unreliable) [cf81fba0] [c0187638] dev_open+0xbc/0x12c [cf81fbc0] [c0187e38] dev_change_flags+0x8c/0x1b0 This patch fixes the issue by removing offending (and somewhat duplicate) code from init_phy() routine, and changes _probe() function to use uec_mdio_bus_name(). Also, since we fully construct phy_bus_id in the _probe() routine, we no longer need ->phy_address and ->mdio_bus fields in ucc_geth_info structure. I wish the patch would be a bit shorter, but it seems like the only way to fix the issue in a sane way. Luckily, the patch has been tested with real PHYs and fixed-link, so no further regressions expected. Reported-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se> Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Tested-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se> Signed-off-by: David S. Miller <davem@davemloft.net>
| * dm9000: locking bugfixDavid Brownell2009-03-221-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes a locking bug in the dm9000 driver. It calls request_irq() without setting IRQF_DISABLED ... which is correct for handlers that support IRQ sharing, since that behavior is not guaranteed for shared IRQs. However, its IRQ handler then wrongly assumes that IRQs are blocked. So the fix just uses the right spinlock primitives in the IRQ handler. NOTE: this is a classic example of the type of bug which lockdep currently masks by forcibly setting IRQF_DISABLED on IRQ handlers that did not request that flag. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: David S. Miller <davem@davemloft.net>
| * net: update dnet.c for bus_id removalStephen Rothwell2009-03-221-3/+3
| | | | | | | | | | Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
| * dnet: DNET should depend on HAS_IOMEMIlya Yanok2009-03-211-1/+1
| | | | | | | | | | Signed-off-by: Ilya Yanok <yanok@emcraft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * dca: add missing copyright/license headersMaciej Sosnowski2009-03-212-0/+41
| | | | | | | | | | | | | | | | In two dca files copyright and license headers are missing. This patch adds them there. Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * Merge branch 'master' of ↵David S. Miller2009-03-201-0/+11
| |\ | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6
| | * nl80211: Check that function pointer != NULL before using itJouni Malinen2009-03-201-0/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | NL80211_CMD_GET_MESH_PARAMS and NL80211_CMD_SET_MESH_PARAMS handlers did not verify whether a function pointer is NULL (not supported by the driver) before trying to call the function. The former nl80211 command is available for unprivileged users, too, so this can potentially allow normal users to kill networking (or worse..) if mac80211 is built without CONFIG_MAC80211_MESH=y. Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * | sungem: missing net_device_opsStephen Hemminger2009-03-191-5/+4
| | | | | | | | | | | | | | | | | | | | | | | | Sungem driver only got partially converted to net_device_ops. Since this could cause bugs, please push this to 2.6.29 Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | be2net: fix to restore vlan ids into BE2 during a IF DOWN->UP cycleSathya Perla2009-03-191-5/+5
| | | | | | | | | | | | | | | | | | | | | This is a patch to reconfigure vlan-ids during an i/f down/up cycle Signed-off-by: Sathya Perla <sathyap@serverengines.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | be2net: replenish when posting to rx-queue is starved in out of mem conditionsSathya Perla2009-03-192-21/+30
| |/ | | | | | | | | | | | | | | This is a patch to replenish the rx-queue when it is in a starved state (due to out-of-mem conditions) Signed-off-by: Sathya Perla <sathyap@serverengines.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * bas_gigaset: correctly allocate USB interrupt transfer bufferTilman Schmidt2009-03-181-3/+13
| | | | | | | | | | | | | | | | | | | | Every USB transfer buffer has to be allocated individually by kmalloc. Impact: bugfix, no functional change Signed-off-by: Tilman Schmidt <tilman@imap.cc> Tested-by: Kolja Waschk <kawk@users.sourceforge.net> Signed-off-by: David S. Miller <davem@davemloft.net>
| * smsc911x: reset last known duplex and carrier on openSteve Glendinning2009-03-181-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | smsc911x_phy_adjust_link is called periodically by the phy layer (as it's run in polling mode), and it only updates the hardware when it sees a change in duplex or carrier. This patch clears the last known values every time the interface is brought up, instead of only when the module is loaded. Without this patch the adjust_link function never updates the hardware after an ifconfig down; ifconfig up. On a full duplex link this causes the tx error counter to increment, even though packets are correctly transmitted, as the default MAC_CR register setting is for half duplex. The tx errors are "no carrier" errors, which should be ignored in full-duplex mode. When MAC_CR is set to "full duplex" mode they are correctly ignored by the hardware. Note that even with this patch the tx error counter can increment if packets are transmitted between "ifconfig up" and the first phy poll interval. An improved solution would use the phy interrupt with phylib, but I haven't managed to make this work 100% robustly yet. Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * sh_eth: Fix mistake of the address of SH7763Nobuhiro Iwamatsu2009-03-181-2/+2
| | | | | | | | | | | | | | | | Address of SH_TSU_ADDR and ARSTR of SH7763 was wrong. This revise it. Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * sh_eth: Change handling of IRQNobuhiro Iwamatsu2009-03-181-3/+17
| | | | | | | | | | | | | | | | | | Handling of IRQ of the SH7763/SH7764 CPU which sh_eth supported was changed. This revises it for this change. Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * netns: oops in ip[6]_frag_reasm incrementing statsJorge Boncompte [DTI2]2009-03-182-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | dev can be NULL in ip[6]_frag_reasm for skb's coming from RAW sockets. Quagga's OSPFD sends fragmented packets on a RAW socket, when netfilter conntrack reassembles them on the OUTPUT path you hit this code path. You can test it with something like "hping2 -0 -d 2000 -f AA.BB.CC.DD" With help from Jarek Poplawski. Signed-off-by: Jorge Boncompte [DTI2] <jorge@dti2.net> Signed-off-by: David S. Miller <davem@davemloft.net>
| * net: kfree(napi->skb) => kfree_skbRoel Kluin2009-03-181-1/+1
| | | | | | | | | | | | | | struct sk_buff pointers should be freed with kfree_skb. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * net: fix sctp breakageAl Viro2009-03-181-1/+2
| | | | | | | | | | | | | | | | | | broken by commit 5e739d1752aca4e8f3e794d431503bfca3162df4; AFAICS should be -stable fodder as well... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Aced-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * ipv6: fix display of local and remote sit endpointsBjørn Mork2009-03-181-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes the regressions cause by commit 1326c3d5a4b792a2b15877feb7fb691f8945d203 (v2.6.28-rc6-461-g23a12b1) broke the display of local and remote addresses of an SIT tunnel in iproute2. nt->parms is used by ipip6_tunnel_init() and therefore need to be initialized first. Tracked as http://bugzilla.kernel.org/show_bug.cgi?id=12868 Reported-by: Jan Engelhardt <jengelh@medozas.de> Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
| * net: Document /proc/sys/net/core/netdev_budgetStanislaw Gruszka2009-03-181-0/+7
| | | | | | | | | | | | | | | | | | The NAPI poll parameter netdev_budget is not documented in kernel-docs. Since it may have a substantial effect on at least some network loads, it should be. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * tulip: fix crash on iface up with shirq debugKyle McMartin2009-03-181-16/+29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Tulip is currently doing request_irq before it has done its initialization. This is usually not a problem because it hasn't enable interrupts yet, but with DEBUG_SHIRQ on, we call the irq handler when registering the interrupt as a sanity check. This can result in a NULL ptr dereference, so call tulip_init_ring before request_irq, and add a free_ring function to do the freeing now shared with tulip_close. Tested with a shell loop running ifup, ifdown in a loop a few hundred times with DEBUG_SHIRQ on. Signed-off-by: Kyle McMartin <kyle@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * virtio_net: Make virtio_net support carrier detectionPantelis Koukousoulas2009-03-181-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: Make NetworkManager work with virtio_net For now the semantics are simple: There is always carrier. This allows a seamless experience with e.g., qemu/kvm where NetworkManager just configures and sets up everything automagically. If/when a generally agreed-upon way to control carrier on/off in the emulator/hypervisor level emerges, it will be trivial to extend the driver to support that too, but for now even this 2-liner makes user experience that much better. Signed-off-by: Pantelis Koukousoulas <pktoss@gmail.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: David S. Miller <davem@davemloft.net>
| * bonding: Fix updating of speed/duplex changesJay Vosburgh2009-03-181-5/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch corrects an omission from the following commit: commit f0c76d61779b153dbfb955db3f144c62d02173c2 Author: Jay Vosburgh <fubar@us.ibm.com> Date: Wed Jul 2 18:21:58 2008 -0700 bonding: refactor mii monitor The un-refactored code checked the link speed and duplex of every slave on every pass; the refactored code did not do so. The 802.3ad and balance-alb/tlb modes utilize the speed and duplex information, and require it to be kept up to date. This patch adds a notifier check to perform the appropriate updating when the slave device speed changes. Signed-off-by: Jay Vosburgh <fubar@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * bnx2: Fix problem of using wrong IRQ handler.Michael Chan2009-03-181-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The MSI-X handler was chosen before the call to pci_enable_msix(). If MSI-X was not available, the wrong MSI-X handler would be used in INTA mode. This would cause a screaming interrupt problem because INTA would not be cleared by the MSI-X handler. Fixed by assigning MSI-X handler after pci_enable_msix() returns successfully. Also update version to 1.9.3. Thomas Chenault <thomas_chenault@dell.com> helped us find this problem. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * Merge branch 'master' of ↵David S. Miller2009-03-179-5/+81
| |\ | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6
| | * zd1211rw: Do not panic on device eject when associatedJouni Malinen2009-03-161-2/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | zd_op_tx() must not return an arbitrary error value since that can leave mac80211 trying to retransmit the frame and with the extra data pushed into the beginning of the skb on every attempt, this will end up causing a kernel panic (skb_under_panic from skb_push call). This can happen, e.g., when ejecting the device when associated. Signed-off-by: Jouni Malinen <j@w1.fi> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| | * mac80211: Fix panic on fragmentation with power savingJouni Malinen2009-03-161-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It was possible to hit a kernel panic on NULL pointer dereference in dev_queue_xmit() when sending power save buffered frames to a STA that woke up from sleep. This happened when the buffered frame was requeued for transmission in ap_sta_ps_end(). In order to avoid the panic, copy the skb->dev and skb->iif values from the first fragment to all other fragments. Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| | * ath9k: AR9280 PCI devices must serialize IO as wellLuis R. Rodriguez2009-03-161-1/+2
| | | | | | | | | | | | | | | | | | Cc: stable@kernel.org Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| | * ath9k: implement IO serializationLuis R. Rodriguez2009-03-164-2/+55
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | All 802.11n PCI devices (Cardbus, PCI, mini-PCI) require serialization of IO when on non-uniprocessor systems. PCI express devices not not require this. This should fix our only last standing open ath9k kernel.org bugzilla bug report: http://bugzilla.kernel.org/show_bug.cgi?id=12110 A port is probably required to older kernels and I can work on that. Cc: stable@kernel.org Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| | * lib80211: silence excessive crypto debugging messagesJohn W. Linville2009-03-163-0/+16
| | | | | | | | | | | | | | | | | | | | | | | | When they were part of the now defunct ieee80211 component, these messages were only visible when special debugging settings were enabled. Let's mirror that with a new lib80211 debugging Kconfig option. Signed-off-by: John W. Linville <linville@tuxdriver.com>
generated by cgit v1.1 at 2024-10-28 09:18:09 +0000