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2010-11-29drm: record monitor status in output_poll_executeKeith Packard1-3/+4
In order to correctly report monitor connected status changes, the previous monitor status must be recorded in the connector->status value instead of being discarded. Signed-off-by: Keith Packard <[email protected]> Signed-off-by: Dave Airlie <[email protected]>
2010-11-29drm: Set connector DPMS status to ON in drm_crtc_helper_set_configKeith Packard1-0/+7
When setting a new crtc configuration, force the DPMS state of all connectors to ON. Otherwise, they'll be left at OFF and a future mode set that disables the specified connector will not turn the connector off. Signed-off-by: Keith Packard <[email protected]> Signed-off-by: Dave Airlie <[email protected]>
2010-11-29sh: boards: mach-se: use IS_ERR() instead of NULL checkVasiliy Kulikov1-2/+2
clk_get() returns ERR_PTR() on error, not NULL. Signed-off-by: Vasiliy Kulikov <[email protected]> Reviewed-by: Guennadi Liakhovetski <[email protected]> Signed-off-by: Paul Mundt <[email protected]>
2010-11-29sh: Add div6_reparent_clks to clock framework for FSIKuninori Morimoto3-35/+46
Current clk_ops doesn't support .init which is used to select external clock on ecovec without CONFIG_SH_CLK_CPG_LEGACY. To solve this problem, this patch add div6_reparent_clks to clock-sh7724. This patch solve compile error too. Signed-off-by: Kuninori Morimoto <[email protected]> Signed-off-by: Paul Mundt <[email protected]>
2010-11-28ucc_geth: fix ucc halt problem in half duplex modeYang Li1-1/+2
In commit 58933c64(ucc_geth: Fix the wrong the Rx/Tx FIFO size), the UCC_GETH_UTFTT_INIT is set to 512 based on the recommendation of the QE Reference Manual. But that will sometimes cause tx halt while working in half duplex mode. According to errata draft QE_GENERAL-A003(High Tx Virtual FIFO threshold size can cause UCC to halt), setting UTFTT less than [(UTFS x (M - 8)/M) - 128] will prevent this from happening (M is the minimum buffer size). The patch changes UTFTT back to 256. Signed-off-by: Li Yang <[email protected]> Cc: Jean-Denis Boyer <[email protected]> Cc: Andreas Schmitz <[email protected]> Cc: Anton Vorontsov <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-11-28inet: Fix __inet_inherit_port() to correctly increment bsockets and num_ownersNagendra Tomar1-2/+1
inet sockets corresponding to passive connections are added to the bind hash using ___inet_inherit_port(). These sockets are later removed from the bind hash using __inet_put_port(). These two functions are not exactly symmetrical. __inet_put_port() decrements hashinfo->bsockets and tb->num_owners, whereas ___inet_inherit_port() does not increment them. This results in both of these going to -ve values. This patch fixes this by calling inet_bind_hash() from ___inet_inherit_port(), which does the right thing. 'bsockets' and 'num_owners' were introduced by commit a9d8f9110d7e953c (inet: Allowing more than 64k connections and heavily optimize bind(0)) Signed-off-by: Nagendra Singh Tomar <[email protected]> Acked-by: Eric Dumazet <[email protected]> Acked-by: Evgeniy Polyakov <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-11-28ehea: Add some info messages and fix an issueBreno Leitao1-4/+14
This patch adds some debug information about ehea not being able to allocate enough spaces. Also it correctly updates the amount of available skb. Signed-off-by: Breno Leitao <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-11-28Btrfs: deal with DIO bios that span more than one ordered extentChris Mason3-4/+89
The new DIO bio splitting code has problems when the bio spans more than one ordered extent. This will happen as the generic DIO code merges our get_blocks calls together into a bigger single bio. This fixes things by walking forward in the ordered extent code finding all the overlapping ordered extents and completing them all at once. Signed-off-by: Chris Mason <[email protected]>
2010-11-28Un-inline get_pipe_info() helper functionLinus Torvalds2-12/+13
This avoids some include-file hell, and the function isn't really important enough to be inlined anyway. Reported-by: Ingo Molnar <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-11-28Export 'get_pipe_info()' to other usersLinus Torvalds3-12/+13
And in particular, use it in 'pipe_fcntl()'. The other pipe functions do not need to use the 'careful' version, since they are only ever called for things that are already known to be pipes. The normal read/write/ioctl functions are called through the file operations structures, so if a file isn't a pipe, they'd never get called. But pipe_fcntl() is special, and called directly from the generic fcntl code, and needs to use the same careful function that the splice code is using. Cc: Jens Axboe <[email protected]> Cc: Andrew Morton <[email protected]> Cc: Al Viro <[email protected]> Cc: Dave Jones <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-11-28Rename 'pipe_info()' to 'get_pipe_info()'Linus Torvalds1-10/+9
.. and change it to take the 'file' pointer instead of an inode, since that's what all users want anyway. The renaming is preparatory to exporting it to other users. The old 'pipe_info()' name was too generic and is already used elsewhere, so before making the function public we need to use a more specific name. Cc: Jens Axboe <[email protected]> Cc: Andrew Morton <[email protected]> Cc: Al Viro <[email protected]> Cc: Dave Jones <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-11-28Merge branch 'perf-fixes-for-linus' of ↵Linus Torvalds4-19/+57
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: perf: Fix the software context switch counter perf, x86: Fixup Kconfig deps x86, perf, nmi: Disable perf if counters are not accessible perf: Fix inherit vs. context rotation bug
2010-11-28Merge branch 'fwnet' of ↵Linus Torvalds1-70/+90
git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6 * 'fwnet' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6: firewire: net: throttle TX queue before running out of tlabels firewire: net: replace lists by counters firewire: net: fix memory leaks firewire: net: count stats.tx_packets and stats.tx_bytes
2010-11-28hso: fix disable_netFilip Aben1-4/+6
The HSO driver incorrectly creates a serial device instead of a net device when disable_net is set. It shouldn't create anything for the network interface. Signed-off-by: Filip Aben <[email protected]> Reported-by: Piotr Isajew <[email protected]> Reported-by: Johan Hovold <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-11-28NET: wan/x25_asy, move lapb_unregister to x25_asy_close_ttyJiri Slaby1-5/+6
We register lapb when tty is created, but unregister it only when the device is UP. So move the lapb_unregister to x25_asy_close_tty after the device is down. The old behaviour causes ldisc switching to fail each second attempt, because we noted for us that the device is unused, so we use it the second time, but labp layer still have it registered, so it fails obviously. Signed-off-by: Jiri Slaby <[email protected]> Reported-by: Sergey Lapin <[email protected]> Cc: Andrew Hendry <[email protected]> Tested-by: Sergey Lapin <[email protected]> Tested-by: Mikhail Ulyanov <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-11-28cxgb4vf: fix setting unicast/multicast addresses ...Casey Leedom2-63/+104
We were truncating the number of unicast and multicast MAC addresses supported. Additionally, we were incorrectly computing the MAC Address hash (a "1 << N" where we needed a "1ULL << N"). Signed-off-by: Casey Leedom <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-11-28net, ppp: Report correct error code if unit allocation failedCyrill Gorcunov1-21/+22
Allocating unit from ird might return several error codes not only -EAGAIN, so it should not be changed and returned precisely. Same time unit release procedure should be invoked only if device is unregistering. Signed-off-by: Cyrill Gorcunov <[email protected]> CC: Paul Mackerras <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-11-28DECnet: don't leak uninitialized stack byteDan Rosenberg1-0/+2
A single uninitialized padding byte is leaked to userspace. Signed-off-by: Dan Rosenberg <[email protected]> CC: stable <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-11-28au1000_eth: fix invalid address accessing the MAC enable registerWolfgang Grandegger1-5/+5
"aup->enable" holds already the address pointing to the MAC enable register. The bug was introduced by commit d0e7cb: "au1000-eth: remove volatiles, switch to I/O accessors". CC: Florian Fainelli <[email protected]> Signed-off-by: Wolfgang Grandegger <[email protected]> Acked-by: Florian Fainelli <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-11-28dccp: fix error in updating the GARGerrit Renker1-1/+2
This fixes a bug in updating the Greatest Acknowledgment number Received (GAR): the current implementation does not track the greatest received value - lower values in the range AWL..AWH (RFC 4340, 7.5.1) erase higher ones. Signed-off-by: Gerrit Renker <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-11-28Merge branch 'vhost-net' of ↵David S. Miller1-2/+3
git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
2010-11-28tcp: restrict net.ipv4.tcp_adv_win_scale (#20312)Alexey Dobriyan2-1/+6
tcp_win_from_space() does the following: if (sysctl_tcp_adv_win_scale <= 0) return space >> (-sysctl_tcp_adv_win_scale); else return space - (space >> sysctl_tcp_adv_win_scale); "space" is int. As per C99 6.5.7 (3) shifting int for 32 or more bits is undefined behaviour. Indeed, if sysctl_tcp_adv_win_scale is exactly 32, space >> 32 equals space and function returns 0. Which means we busyloop in tcp_fixup_rcvbuf(). Restrict net.ipv4.tcp_adv_win_scale to [-31, 31]. Fix https://bugzilla.kernel.org/show_bug.cgi?id=20312 Steps to reproduce: echo 32 >/proc/sys/net/ipv4/tcp_adv_win_scale wget www.kernel.org [softlockup] Signed-off-by: Alexey Dobriyan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-11-28drm/i915: fix regression due to ba3d8d749b01548b9Daniel Vetter1-25/+18
We don't track gpu flush request in any special way. So even with obj->write_domain == 0, a gpu flush might be outstanding but no yet executed. Even worse, the latest request might use the object only for reading. So and unconditional call to object_wait_rendering is needed for !pipelined. Hence revert that patch fully and untangle the flushing from the synchronization again. Reported-by: Keith Packard <[email protected]> Tested-by: Keith Packard <[email protected]> Signed-off-by: Daniel Vetter <[email protected]> Signed-off-by: Chris Wilson <[email protected]>
2010-11-27netns: Don't leak others' openreq-s in procPavel Emelyanov1-1/+3
The /proc/net/tcp leaks openreq sockets from other namespaces. Signed-off-by: Pavel Emelyanov <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-11-27Net: ceph: Makefile: Remove unnessary codeTracey Dent1-22/+0
Remove the if and else conditional because the code is in mainline and there is no need in it being there. Signed-off-by: Tracey Dent <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-11-27Merge branch 'for-linus' of ↵Linus Torvalds24-48/+131
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: (30 commits) ALSA: hda - Use ALC_INIT_DEFAULT for really default initialization ASoC: Fix resource reclaim for osk5912 ASoC: tlv320aic3x - fix variable may be used uninitialized warning ASoC: davinci-vcif - fix a memory leak ASoC: phycore-ac97: fix resource leak ASoC: imx-ssi: fix resource leak ASoC: simone: fix resource leak in simone_init error path ASoC: sam9g20_wm8731: fix resource leak in at91sam9g20ek_init error path ASoC: snd-soc-afeb9260: remove unneeded platform_device_del in error path ASoC: pcm030-audio-fabric: fix resource leak in pcm030_fabric_init error path ASoC: efika-audio-fabric: fix resource leak in efika_fabric_init error path ASoC: Call snd_soc_unregister_dais instead of snd_soc_unregister_dai in sh4_soc_dai_remove ASoC: fix SND_PXA2XX_LIB Kconfig warning ALSA: hda - Fix ALC660-VD/ALC861-VD capture/playback mixers ALSA: HDA: Add an extra DAC for Realtek ALC887-VD ASoC: nuc900-ac97: fix a memory leak ASoC: Return proper error for omap3pandora_soc_init ASoC: wm8961 - clear WM8961_MCLKDIV bit for freq <= 16500000 ASoC: wm8961 - clear WM8961_DACSLOPE bit for normal mode ALSA: hda - Fix Acer 7730G support ...
2010-11-27Btrfs: setup blank root and fs_info for mount timeJosef Bacik2-7/+33
There is a problem with how we use sget, it searches through the list of supers attached to the fs_type looking for a super with the same fs_devices as what we're trying to mount. This depends on sb->s_fs_info being filled, but we don't fill that in until we get to btrfs_fill_super, so we could hit supers on the fs_type super list that have a null s_fs_info. In order to fix that we need to go ahead and setup a blank root with a blank fs_info to hold fs_devices, that way our test will work out right and then we can set s_fs_info in btrfs_set_super, and then open_ctree will simply use our pre-allocated root and fs_info when setting everything up. Thanks, Signed-off-by: Josef Bacik <[email protected]> Signed-off-by: Chris Mason <[email protected]>
2010-11-27Btrfs: fix fiemapJosef Bacik1-9/+54
There are two big problems currently with FIEMAP 1) We return extents for holes. This isn't supposed to happen, we just don't return extents for holes and then userspace interprets the lack of an extent as a hole. 2) We sometimes don't set FIEMAP_EXTENT_LAST properly. This is because we wait to see a EXTENT_FLAG_VACANCY flag on the em, but this won't happen if say we ask fiemap to map up to the last extent in a file, and there is nothing but holes up to the i_size. To fix this we need to lookup the last extent in this file and save the logical offset, so if we happen to try and map that extent we can be sure to set FIEMAP_EXTENT_LAST. With this patch we now pass xfstest 225, which we never have before. Signed-off-by: Josef Bacik <[email protected]> Signed-off-by: Chris Mason <[email protected]>
2010-11-27Btrfs - fix race between btrfs_get_sb() and umountIan Kent1-0/+6
When mounting a btrfs file system btrfs_test_super() may attempt to use sb->s_fs_info, the btrfs root, of a super block that is going away and that has had the btrfs root set to NULL in its ->put_super(). But if the super block is going away it cannot be an existing super block so we can return false in this case. Signed-off-by: Ian Kent <[email protected]> Signed-off-by: Chris Mason <[email protected]>
2010-11-27Btrfs: update inode ctime when using linksJosef Bacik1-0/+1
Currently we fail xfstest 236 because we're not updating the inode ctime on link. This is a simple fix, and makes it so we pass 236 now. Signed-off-by: Josef Bacik <[email protected]> Signed-off-by: Chris Mason <[email protected]>
2010-11-27Btrfs: make sure new inode size is ok in fallocateJosef Bacik1-0/+4
We have been failing xfstest 228 forever, because we don't check to make sure the new inode size is acceptable as far as RLIMIT is concerned. Just check to make sure it's ok to create a inode with this new size and error out if not. With this patch we now pass 228. Signed-off-by: Josef Bacik <[email protected]> Signed-off-by: Chris Mason <[email protected]>
2010-11-27Btrfs: fix typo in fallocate to make it honor actual sizeJosef Bacik1-4/+5
There is a typo in __btrfs_prealloc_file_range() where we set the i_size to actual_len/cur_offset, and then just set it to cur_offset again, and do the same with btrfs_ordered_update_i_size(). This fixes it back to keeping i_size in a local variable and then updating i_size properly. Tested this with xfs_io -F -f -c "falloc 0 1" -c "pwrite 0 1" foo stat'ing foo gives us a size of 1 instead of 4096 like it was. Thanks, Signed-off-by: Josef Bacik <[email protected]> Signed-off-by: Chris Mason <[email protected]>
2010-11-27Merge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6Linus Torvalds8-41/+71
* 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6: NFS: Ensure we return the dirent->d_type when it is known NFS: Correct the array bound calculation in nfs_readdir_add_to_array NFS: Don't ignore errors from nfs_do_filldir() NFS: Fix the error handling in "uncached_readdir()" NFS: Fix a page leak in uncached_readdir() NFS: Fix a page leak in nfs_do_filldir() NFS: Assume eof if the server returns no readdir records NFS: Buffer overflow in ->decode_dirent() should not be fatal Pure nfs client performance using odirect. SUNRPC: Fix an infinite loop in call_refresh/call_refreshresult
2010-11-27Merge branch 'linux-next' of git://git.infradead.org/ubi-2.6Linus Torvalds1-7/+9
* 'linux-next' of git://git.infradead.org/ubi-2.6: UBI: release locks in check_corruption
2010-11-27Merge branch 'timers-fixes-for-linus' of ↵Linus Torvalds1-6/+6
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: posix-cpu-timers: Rcu_read_lock/unlock protect find_task_by_vpid call
2010-11-27Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds10-46/+98
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: dmar, x86: Use function stubs when CONFIG_INTR_REMAP is disabled x86-64: Fix and clean up AMD Fam10 MMCONF enabling x86: UV: Address interrupt/IO port operation conflict x86: Use online node real index in calulate_tbl_offset() x86, asm: Fix binutils 2.15 build failure
2010-11-27Merge branch 'perf-fixes-for-linus' of ↵Linus Torvalds12-32/+123
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: perf symbols: Remove incorrect open-coded container_of() perf record: Handle restrictive permissions in /proc/{kallsyms,modules} x86/kprobes: Prevent kprobes to probe on save_args() irq_work: Drop cmpxchg() result perf: Fix owner-list vs exit x86, hw_nmi: Move backtrace_mask declaration under ARCH_HAS_NMI_WATCHDOG tracing: Fix recursive user stack trace perf,hw_breakpoint: Initialize hardware api earlier x86: Ignore trap bits on single step exceptions tracing: Force arch_local_irq_* notrace for paravirt tracing: Fix module use of trace_bprintk()
2010-11-27Merge branch 'sched-fixes-for-linus' of ↵Linus Torvalds1-5/+3
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: sched: Fix idle balancing sched: Fix volanomark performance regression
2010-11-27Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6Linus Torvalds3-12/+14
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: [S390] qdio: free indicator after reset is finished [S390] nmi: fix clock comparator revalidation
2010-11-27Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-blockLinus Torvalds6-52/+43
* 'for-linus' of git://git.kernel.dk/linux-2.6-block: cciss: fix build for PROC_FS disabled block: fix amiga and atari floppy driver compile warning blk-throttle: Fix calculation of max number of WRITES to be dispatched ioprio: grab rcu_read_lock in sys_ioprio_{set,get}() xen/blkfront: cope with backend that fail empty BLKIF_OP_WRITE_BARRIER requests xen/blkfront: Implement FUA with BLKIF_OP_WRITE_BARRIER xen/blkfront: change blk_shadow.request to proper pointer xen/blkfront: map REQ_FLUSH into a full barrier
2010-11-27Merge branch 'rmobile-fixes-for-linus' of ↵Linus Torvalds4-71/+140
git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 * 'rmobile-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: ARM: mach-shmobile: clock-sh7372: remove bogus pllc2 clock toggling. ARM: mach-shmobile: clock-sh7372: remove unnecessary fsi clocks ARM: mach-shmobile: clock-sh7372: modify error code ARM: mach-shmobile: ap4evb: FSI clock use proper process for ak4642 ARM: mach-shmobile: ap4evb: FSI clock use proper process for HDMI ARM: mach-shmobile: clock-sh7372: remove fsidiv bogus disable ARM: mach-shmobile: sh7372 USB0/IIC1 MSTP fix
2010-11-27Merge branch 'for-linus' of ↵Linus Torvalds14-62/+179
git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: mmc: sdhci: 8-bit bus width changes mmc: sdio: fix runtime PM anomalies by introducing MMC_CAP_POWER_OFF_CARD mmc: sdio: fix nasty oops in mmc_sdio_detect mmc: omap4: hsmmc: Fix improper card detection while booting mmc: fix rmmod race for hosts using card-detection polling mmc: sdhci: Fix crash on boot with C0 stepping Moorestown platforms mmc: sdhci-esdhc-imx: enable QUIRK_NO_MULTIBLOCK only for i.MX25 and i.MX35 mmc: sdhci-esdhc-imx: fix timeout on i.MX's sdhci mmc: sdhci: Properly enable SDIO IRQ wakeups mmc: ushc: Return proper error code for ushc_probe() mmc: Fix printing of card DDR type
2010-11-27Merge branch 's5p-fixes-for-linus' of ↵Linus Torvalds10-21/+21
git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung * 's5p-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: ARM: S5PV210: Fix sysdev related warning messages ARM: S3C24XX: Fix UART3 submask on S3C2416 and S3C2443 ARM: S3C24XX: Fix Demux error in UART3 irqs on S3C2443 and S3C2416 ARM: S3C64XX: fix uart clock setup for mini6410/real6410 ARM: S3C24XX: Fix wrong s3c_gpio_cfgpull ARM: S3C2410: Adapt h1940-bluetooth to gpiolib changes
2010-11-27Merge branch 'for-linus' of ↵Linus Torvalds2-3/+3
git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2: nilfs2: fix typo in comment of nilfs_dat_move function nilfs2: nilfs_iget_for_gc() returns ERR_PTR
2010-11-26Merge branch 'fix/asoc' into for-linusTakashi Iwai23-38/+85
2010-11-26ALSA: hda - Use ALC_INIT_DEFAULT for really default initializationTakashi Iwai1-0/+1
When SKU assid gives no valid bits for 0x38, the driver didn't take any action, so far. This resulted in the missing initialization for external amps, etc, thus the silent output in the end. Especially users hit this problem on ALC888 newly since 2.6.35, where the driver doesn't force to use ALC_INIT_DEFAULT any more. This patch sets the default initialization scheme to use ALC_INIT_DEFAULT when no valid bits are set for SKU assid. Reference: https://bugzilla.redhat.com/show_bug.cgi?id=657388 Reported-and-tested-by: Kyle McMartin <[email protected]> Cc: <[email protected]> Signed-off-by: Takashi Iwai <[email protected]>
2010-11-26perf: Fix the software context switch counterPeter Zijlstra2-16/+15
Stephane noticed that because the perf_sw_event() call is inside the perf_event_task_sched_out() call it won't get called unless we have a per-task counter. Reported-by: Stephane Eranian <[email protected]> Signed-off-by: Peter Zijlstra <[email protected]> LKML-Reference: <new-submission> Signed-off-by: Ingo Molnar <[email protected]>
2010-11-26perf, x86: Fixup Kconfig depsPeter Zijlstra1-1/+1
This leads to a Kconfig dep inversion, x86 selects PERF_EVENT (due to a hw_breakpoint dep) but doesn't unconditionally provide HAVE_PERF_EVENT. (This can cause build failures on M386/M486 kernel .config's.) Signed-off-by: Peter Zijlstra <[email protected]> LKML-Reference: <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2010-11-26x86, perf, nmi: Disable perf if counters are not accessibleDon Zickus1-0/+20
In a kvm virt guests, the perf counters are not emulated. Instead they return zero on a rdmsrl. The perf nmi handler uses the fact that crossing a zero means the counter overflowed (for those counters that do not have specific interrupt bits). Therefore on kvm guests, perf will swallow all NMIs thinking the counters overflowed. This causes problems for subsystems like kgdb which needs NMIs to do its magic. This problem was discovered by running kgdb tests. The solution is to write garbage into a perf counter during the initialization and hopefully reading back the same number. On kvm guests, the value will be read back as zero and we disable perf as a result. Reported-by: Jason Wessel <[email protected]> Patch-inspired-by: Peter Zijlstra <[email protected]> Signed-off-by: Don Zickus <[email protected]> Signed-off-by: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> LKML-Reference: <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2010-11-26perf: Fix inherit vs. context rotation bugThomas Gleixner2-2/+21
It was found that sometimes children of tasks with inherited events had one extra event. Eventually it turned out to be due to the list rotation no being exclusive with the list iteration in the inheritance code. Cure this by temporarily disabling the rotation while we inherit the events. Signed-off-by: Thomas Gleixner <[email protected]> Signed-off-by: Peter Zijlstra <[email protected]> LKML-Reference: <new-submission> Cc: <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
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