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2011-03-30Merge branch 'for-linus' of ↵Linus Torvalds3-14/+15
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 whitespace coding style issues nilfs2: fix oops due to a bad aops initialization nilfs2: fix data loss in mmap page write for hole blocks
2011-03-30Merge git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-clientLinus Torvalds13-27/+215
* git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: libceph: Create a new key type "ceph". libceph: Get secret from the kernel keys api when mounting with key=NAME. ceph: Move secret key parsing earlier. libceph: fix null dereference when unregistering linger requests ceph: unlock on error in ceph_osdc_start_request() ceph: fix possible NULL pointer dereference ceph: flush msgr_wq during mds_client shutdown
2011-03-30Merge branch 'irq-fixes-for-linus' of ↵Linus Torvalds28-48/+11
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'irq-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: avr32: Fix missing irq namespace conversion powerpc: qe_ic: Rename get_irq_desc_data and get_irq_desc_chip genirq: Remove the now obsolete config options and select statements arm: versatile : Fix typo introduced in irq namespace cleanup sound: Fixup the last user of the old irq functions genirq: Remove obsolete comment genirq: Remove now obsolete set_irq_wake() sh: Fix irq cleanup fallout x86: apb_timer: Fixup genirq fallout genirq: Fix misnamed label in handle_edge_eoi_irq Fix up crazy conflict in arch/powerpc/include/asm/qe_ic.h: - commit eead4d5c63ff ("powerpc: qe_ic: Rename get_irq_desc_data and get_irq_desc_chip") made the helper functions use irq_desc_get_handler_data() instead of the legacy (and no longer existing) get_irq_desc_data. - commit d4db35e8dc96 ("powerpc/qe_ic: Fix another breakage from the irq_data conversion") used irq_desc_get_chip_data() instead. According to Thomas, the former is the correct direct conversion, but it does look like both should work (arch/powerpc/sysdev/qe_lib/qe_ic.c seems to initialize both to the same thing), and the chip data in some ways is the more logical. Somebody should really decide on one of the other. This merge picks irq_desc_get_handler_data() as the straightforward pure conversion to new names, as per Thomas.
2011-03-30Merge branch 'merge' of ↵Linus Torvalds31-65/+160
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: powerpc/qe_ic: Fix another breakage from the irq_data conversion powerpc/8xx: Fix another breakage from the irq_data conversion powerpc/cell: Use handle_edge_eoi_irq for real powerpc/pseries: Enable Chelsio network and iWARP drivers powerpc/mm: Move the STAB0 location to 0x8000 to make room in low memory powerpc: Fix accounting of softirq time when idle powerpc/pseries/smp: query-cpu-stopped-state support won't change powerpc/xics: Use hwirq for xics domain irq number powerpc/xics: Fix numberspace mismatch from irq_desc conversion powerpc: Wire up new syscalls powerpc/booke: Correct the SPRN_MAS5 definition. powerpc: ARCH_PFN_OFFSET should be unsigned long powerpc: Implement dma_mmap_coherent() powerpc/nvram: Don't overwrite oops/panic report on normal shutdown powerpc: Restore some misc devices to our configs
2011-03-30Merge branch 'for-linus' of ↵Linus Torvalds12-35/+24
git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin: Blackfin: bitops: fix include order after little endian inclusion Blackfin: defconfigs: update after misc devices defaulted to N Blackfin: use more standard pr_fmt in the module loader
2011-03-30Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds101-689/+1196
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (65 commits) ARM: 6826/1: Merge v6 and v7 DEBUG_LL DCC support ARM: 6838/1: etm: fix section mismatch warning ARM: 6837/1: remove unused pci_fixup_prpmc1100 ARM: 6836/1: kprobes/fix emulation of LDR/STR instruction when Rn == PC Fix the broken build for Marvell Dove platform. ARM: 6835/1: perf: ensure overflows aren't missed due to IRQ latency ARM: 6834/1: perf: reset counters on all CPUs during initialisation ARM: 6833/1: perf: add required isbs() to ARMv7 backend ARM: 6825/1: kernel/sleep.S: fix Thumb2 compilation issues ARM: 6807/1: realview: Fix secondary GIC initialisation for EB with MPCore tile arm: mach-mx3: pcm043: add write-protect and card-detect for SD1 eukrea_mbimxsd51: add SD Card detect eukrea_mbimxsd25-baseboard: add SD card detect mx3/eukrea_mbimxsd-baseboard: add SD card detect support mx3/eukrea_mbimxsd-baseboard: fix gpio request ARM: mxs/mx28evk: add mmc device ARM: mxs/mx23evk: add mmc device ARM: mxs: dynamically allocate mmc device ARM: mx51_efika: update platform data for new mfd changes mx2/iomux: Set direction for CSPI2 pins ...
2011-03-30avr32: Fix missing irq namespace conversionThomas Gleixner1-1/+1
Signed-off-by: Thomas Gleixner <[email protected]>
2011-03-30powerpc: qe_ic: Rename get_irq_desc_data and get_irq_desc_chipRichard Cochran1-8/+8
These two functions disappeared in commit 0c6f8a8b917ad361319c8ace3e9f28e69bfdb4c1 "genirq: Remove compat code" but they still exist in qe_ic.h. This patch renames the function to their new names. Signed-off-by: Richard Cochran <[email protected]> Cc: [email protected] Cc: Lennert Buytenhek <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> LKML-Reference: <[email protected]> Signed-off-by: Thomas Gleixner <[email protected]>
2011-03-30genirq: Remove the now obsolete config options and select statementsThomas Gleixner20-22/+0
Signed-off-by: Thomas Gleixner <[email protected]>
2011-03-30sparc32,leon: Fixed APBUART frequency detectionDaniel Hellstrom1-17/+7
The UARTs may be located on different APB buses, thus have different UART clock frequency. The system frequency is not the same (but often) as the UART frequency, rather the APB bus frequency that the APBUART is located at has the same frequency, so this looks at the "freq" property instead. Signed-off-by: Daniel Hellstrom <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2011-03-30sparc32, leon: APBUART driver must use archdata to get IRQ numberDaniel Hellstrom1-7/+5
See Commit id 1636f8ac2b08410df4766449f7c86b912443cd99 (sparc/of: Move of_device fields into struct pdev_archdata), this patch is similar to 19e4875fb21a69fbf620e84769a74d189c69c58d (of/sparc: fix build regression from of_device changes) Signed-off-by: Daniel Hellstrom <[email protected]> Acked-by: Sam Ravnborg <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2011-03-30arm: versatile : Fix typo introduced in irq namespace cleanupGrant Likely1-1/+1
Commit 6845664(arm: Cleanup the irq namespace) introduces a typo causing a build failure for the versatile platform. [ tglx: Sorry, my bad. Have no idea how I fatfingered that ] Signed-off-by: Grant Likely <[email protected]> Cc: Catalin Marinas <[email protected]> Cc: Russell King <[email protected]> Cc: [email protected] LKML-Reference: <20110330060229.27397.7628.stgit@ponder> Signed-off-by: Thomas Gleixner <[email protected]>
2011-03-30Atheros, atl2: Fix mem leaks in error paths of atl2_set_eepromJesper Juhl1-8/+14
We leak in some error paths of drivers/net/atlx/atl2.c:atl2_set_eeprom(). The memory allocated to 'eeprom_buff' is not freed when we return -EIO. This patch fixes that up and also removes a pointless explicit cast. Signed-off-by: Jesper Juhl <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2011-03-30netdev: fix mtu check when TSO is enabledDaniel Lezcano1-2/+22
In case the device where is coming from the packet has TSO enabled, we should not check the mtu size value as this one could be bigger than the expected value. This is the case for the macvlan driver when the lower device has TSO enabled. The macvlan inherit this feature and forward the packets without fragmenting them. Then the packets go through dev_forward_skb and are dropped. This patch fix this by checking TSO is not enabled when we want to check the mtu size. Signed-off-by: Daniel Lezcano <[email protected]> Acked-by: "Eric W. Biederman" <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2011-03-30net/usb: Ethernet quirks for the LG-VL600 4G modemAndrzej Zaborowski6-9/+387
This adds a driver for the CDC Ethernet part of this modem. The device's ID is blacklisted in cdc_ether.c and is white-listed in this new driver because of the quirks needed to make it useful. The modem's firmware exposes a CDC ACM port for modem control and a CDC Ethernet port for network data. The descriptors look fine but both ports actually are some sort of multiplexers requiring non- standard headers added/removed from every packet or they get ignored. All information is based on a usb traffic log from a Windows machine. On the Verizon 4G network I've seen speeds up to 1.1MB/s so far with this driver, a speed-o-meter site reports 16.2Mbps/10.5Mbps. Userspace scripts are required to talk to the CDC ACM port. Signed-off-by: Andrzej Zaborowski <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2011-03-30phylib: phy_attach_direct: phy_init_hw can fail, add cleanupMarc Kleine-Budde1-2/+6
The function phy_attach_direct attaches the phy and calls phy_init_hw. phy_init_hw can fail, but the phy is still marked as attached. Successive calls to phy_attach_direct will fail because the phy is busy. [ 1.020000] eth0: Freescale FEC PHY driver [Generic PHY] (mii_bus:phy_addr=1:00, irq=-1) [ 1.030000] eth1: Freescale FEC PHY driver [Generic PHY] (mii_bus:phy_addr=1:01, irq=-1) [ 2.050000] Sending DHCP requests . [ 3.020000] PHY: 1:00 - Link is Up - 100/Full [ 5.110000] ..... timed out! [ 87.660000] IP-Config: Reopening network devices... [ 88.190000] FEC: MDIO read timeout [ 88.190000] eth0: could not attach to PHY [ 88.190000] IP-Config: Failed to open eth0 [ 88.210000] FEC: MDIO read timeout [ 88.210000] eth1: could not attach to PHY [ 88.210000] IP-Config: Failed to open eth1 [ 88.220000] IP-Config: No network devices available. [ 88.220000] Freeing init memory: 6968K [...] starting network interfaces... ip: RTNETLINK answers: File exists [ 94.000000] net eth0: PHY already attached [ 94.010000] eth0: could not attach to PHY ip: SIOCSIFFLAGS: Device or resource busy This patch adds phy_detach to clean up if phy_init_hw fails. Signed-off-by: Marc Kleine-Budde <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2011-03-30bridge: mcast snooping, fix length check of snooped MLDv1/2Linus Lüssing1-1/+1
"len = ntohs(ip6h->payload_len)" does not include the length of the ipv6 header itself, which the rest of this function assumes, though. This leads to a length check less restrictive as it should be in the following line for one thing. For another, it very likely leads to an integer underrun when substracting the offset and therefore to a very high new value of 'len' due to its unsignedness. This will ultimately lead to the pskb_trim_rcsum() practically never being called, even in the cases where it should. Signed-off-by: Linus Lüssing <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2011-03-30nilfs2: fix whitespace coding style issuesNicolas Kaiser1-7/+7
Fixes whitespace coding style issues. Signed-off-by: Nicolas Kaiser <[email protected]> Signed-off-by: Ryusuke Konishi <[email protected]>
2011-03-30nilfs2: fix oops due to a bad aops initializationRyusuke Konishi1-1/+3
Nilfs in 2.6.39-rc1 hit the following oops: BUG: unable to handle kernel NULL pointer dereference at 0000000000000048 IP: [<ffffffff810ac235>] try_to_release_page+0x2a/0x3d PGD 234cb6067 PUD 234c72067 PMD 0 Oops: 0000 [#1] SMP <snip> Process truncate (pid: 10995, threadinfo ffff8802353c2000, task ffff880234cfa000) Stack: ffff8802333c77b8 ffffffff810b64b0 0000000000003802 ffffffffa0052cca 0000000000000000 ffff8802353c3b58 0000000000000000 ffff8802353c3b58 0000000000000001 0000000000000000 ffffea0007b92308 ffffea0007b92308 Call Trace: [<ffffffff810b64b0>] ? invalidate_inode_pages2_range+0x15f/0x273 [<ffffffffa0052cca>] ? nilfs_palloc_get_block+0x2d/0xaf [nilfs2] [<ffffffff810589e7>] ? bit_waitqueue+0x14/0xa1 [<ffffffff81058ab1>] ? wake_up_bit+0x10/0x20 [<ffffffffa00433fd>] ? nilfs_forget_buffer+0x66/0x7a [nilfs2] [<ffffffffa00467b8>] ? nilfs_btree_concat_left+0x5c/0x77 [nilfs2] [<ffffffffa00471fc>] ? nilfs_btree_delete+0x395/0x3cf [nilfs2] [<ffffffffa00449a3>] ? nilfs_bmap_do_delete+0x6e/0x79 [nilfs2] [<ffffffffa0045845>] ? nilfs_btree_last_key+0x14b/0x15e [nilfs2] [<ffffffffa00449dd>] ? nilfs_bmap_truncate+0x2f/0x83 [nilfs2] [<ffffffffa0044ab2>] ? nilfs_bmap_last_key+0x35/0x62 [nilfs2] [<ffffffffa003e99b>] ? nilfs_truncate_bmap+0x6b/0xc7 [nilfs2] [<ffffffffa003ee4a>] ? nilfs_truncate+0x79/0xe4 [nilfs2] [<ffffffff810b6c00>] ? vmtruncate+0x33/0x3b [<ffffffffa003e8f1>] ? nilfs_setattr+0x4d/0x8c [nilfs2] [<ffffffff81026106>] ? do_page_fault+0x31b/0x356 [<ffffffff810f9d61>] ? notify_change+0x17d/0x262 [<ffffffff810e5046>] ? do_truncate+0x65/0x80 [<ffffffff810e52af>] ? sys_ftruncate+0xf1/0xf6 [<ffffffff8132c012>] ? system_call_fastpath+0x16/0x1b Code: c3 48 83 ec 08 48 8b 17 48 8b 47 18 80 e2 01 75 04 0f 0b eb fe 48 8b 17 80 e6 20 74 05 31 c0 41 59 c3 48 85 c0 74 11 48 8b 40 58 8b 40 48 48 85 c0 74 04 41 58 ff e0 59 e9 b1 b5 05 00 41 54 RIP [<ffffffff810ac235>] try_to_release_page+0x2a/0x3d RSP <ffff8802353c3b08> CR2: 0000000000000048 This oops was brought in by the change "block: remove per-queue plugging" (commit: 7eaceaccab5f40bb). It initializes mapping->a_ops with a NULL pointer for some pages in nilfs (e.g. btree node pages), but mm code doesn't NULL pointer checks against mapping->a_ops. (the check is done for each callback function) This corrects the aops initialization and fixes the oops. Signed-off-by: Ryusuke Konishi <[email protected]> Acked-by: Jens Axboe <[email protected]>
2011-03-30via-ircc: Pass PCI device pointer to dma_{alloc, free}_coherent()Ben Hutchings1-6/+6
via-ircc has been passing a NULL pointer to DMA allocation functions, which is completely invalid and results in a BUG on PowerPC. Now that we always have the device pointer available, pass it in. Reference: http://bugs.debian.org/619450 Reported-by: Andrew Buckeridge <[email protected]> Signed-off-by: Ben Hutchings <[email protected]> Tested-by: Andrew Buckeridge <[email protected]> [against 2.6.32] Signed-off-by: David S. Miller <[email protected]>
2011-03-30via-ircc: Use pci_{get, set}_drvdata() instead of static pointer variableBen Hutchings1-67/+15
via-ircc still maintains its own array of device pointers in Linux 2.4 style. Worse, it always uses index 0, so it will crash if there are multiple suitable devices in the system. Signed-off-by: Ben Hutchings <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2011-03-30net: gre: provide multicast mappings for ipv4 and ipv6Timo Teräs4-0/+29
My commit 6d55cb91a0020ac0 (gre: fix hard header destination address checking) broke multicast. The reason is that ip_gre used to get ipgre_header() calls with zero destination if we have NOARP or multicast destination. Instead the actual target was decided at ipgre_tunnel_xmit() time based on per-protocol dissection. Instead of allowing the "abuse" of ->header() calls with invalid destination, this creates multicast mappings for ip_gre. This also fixes "ip neigh show nud noarp" to display the proper multicast mappings used by the gre device. Reported-by: Doug Kehn <[email protected]> Signed-off-by: Timo Teräs <[email protected]> Acked-by: Doug Kehn <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2011-03-30Merge commits 'ca6a42586fae' and 'c286c419c784' into perf/urgentIngo Molnar4-20/+54
Pick up these two commits from Arnaldo's perf/core tree: ca6a42586fae: perf tools: Emit clearer message for sys_perf_event_open ENOENT return c286c419c784: perf tools: Fixup exit path when not able to open events As they are really fixes we want to have sooner than laer. Signed-off-by: Ingo Molnar <[email protected]>
2011-03-30Merge commit 'v2.6.39-rc1' into perf/urgentIngo Molnar671-10380/+17319
Merge reason: use the post-merge-window tree. Signed-off-by: Ingo Molnar <[email protected]>
2011-03-30ALSA: ens1371: fix Creative Ectiva supportClemens Ladisch1-4/+19
To make the EV1938 chip work, add a magic bit and an extra delay. Signed-off-by: Clemens Ladisch <[email protected]> Tested-by: Tino Schmidt <[email protected]> Cc: all 2.6.x <[email protected]> Signed-off-by: Takashi Iwai <[email protected]>
2011-03-30ALSA: firewire-speakers: fix hang when unplugging a running deviceClemens Ladisch1-2/+1
When aborting a PCM stream, the xrun is signaled only if the stream is running. When disconnecting a PCM stream, calling snd_card_disconnect() too early would change the stream into a non-running state and thus prevent the xrun from being noticed by user space. To prevent this, move the snd_card_disconnect() call after the xrun. Signed-off-by: Clemens Ladisch <[email protected]> Signed-off-by: Takashi Iwai <[email protected]>
2011-03-29bridge: Fix compilation warning in function br_stp_recalculate_bridge_id()Balaji G1-1/+1
net/bridge/br_stp_if.c: In function ‘br_stp_recalculate_bridge_id’: net/bridge/br_stp_if.c:216:3: warning: ‘return’ with no value, in function returning non-void Signed-off-by: G.Balaji <[email protected]> Acked-by: Stephen Hemminger <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2011-03-30Merge branch 'for-2.6.39' of ↵Takashi Iwai1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound-2.6 into fix/asoc
2011-03-29net: Fix warnings caused by MAX_SKB_FRAGS change.David S. Miller1-1/+1
After commit a715dea3c8e9ef2771c534e05ee1d36f65987e64 ("net: Always allocate at least 16 skb frags regardless of page size"), the value of MAX_SKB_FRAGS can now take on either an "unsigned long" or an "int" value. This causes warnings like: net/packet/af_packet.c: In function ‘tpacket_fill_skb’: net/packet/af_packet.c:948: warning: format ‘%lu’ expects type ‘long unsigned int’, but argument 2 has type ‘int’ Fix by forcing the constant to be unsigned long, otherwise we have a situation where the type of a system wide constant is variable. Signed-off-by: David S. Miller <[email protected]>
2011-03-29sparc: Hook up syncfs system call.David S. Miller3-2/+5
Signed-off-by: David S. Miller <[email protected]>
2011-03-30nilfs2: fix data loss in mmap page write for hole blocksRyusuke Konishi1-6/+5
From the result of a function test of mmap, mmap write to shared pages turned out to be broken for hole blocks. It doesn't write out filled blocks and the data will be lost after umount. This is due to a bug that the target file is not queued for log writer when filling hole blocks. Also, nilfs_page_mkwrite function exits normal code path even after successfully filled hole blocks due to a change of block_page_mkwrite function; just after nilfs was merged into the mainline, block_page_mkwrite() started to return VM_FAULT_LOCKED instead of zero by the patch "mm: close page_mkwrite races" (commit: b827e496c893de0c). The current nilfs_page_mkwrite() is not handling this value properly. This corrects nilfs_page_mkwrite() and will resolve the data loss problem in mmap write. [This should be applied to every kernel since 2.6.30 but a fix is needed for 2.6.37 and prior kernels] Signed-off-by: Ryusuke Konishi <[email protected]> Tested-by: Ryusuke Konishi <[email protected]> Cc: stable <[email protected]> [2.6.38]
2011-03-29hwmon: twl4030-madc-hwmon: add "platform:" prefix for platform modaliasAxel Lin1-1/+1
Since 43cc71eed1250755986da4c0f9898f9a635cb3bf (platform: prefix MODALIAS with "platform:"), the platform modalias is prefixed with "platform:". Signed-off-by: Axel Lin <[email protected]> Cc: J Keerthy <[email protected]> Cc: Samuel Ortiz <[email protected]> Signed-off-by: Guenter Roeck <[email protected]>
2011-03-29[IA64] Fix build breakage - sn_force_interrupt_flag: undefinedTony Luck1-42/+0
Latest irq changes removed the need for this forcing flag, and the definition - but missed the code that allowed it to be tweaked via /proc. Delete accessor functions too. Signed-off-by: Tony Luck <[email protected]>
2011-03-30powerpc/qe_ic: Fix another breakage from the irq_data conversionBenjamin Herrenschmidt1-8/+8
Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2011-03-30powerpc/8xx: Fix another breakage from the irq_data conversionBenjamin Herrenschmidt1-1/+1
Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2011-03-29powerpc/cell: fixup for removal of handle_iic_irqStephen Rothwell1-1/+1
Signed-off-by: Stephen Rothwell <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2011-03-29genirq: fix CONFIG_IRQ_EDGE_EOI_HANDLER buildStephen Rothwell1-1/+1
Fixes these errors: kernel/irq/chip.c: In function 'handle_edge_eoi_irq': kernel/irq/chip.c:517: warning: label 'out_unlock' defined but not used kernel/irq/chip.c:503: error: label 'out_eoi' used but not defined Signed-off-by: Stephen Rothwell <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2011-03-30powerpc/cell: Use handle_edge_eoi_irq for realThomas Gleixner1-1/+1
Missed one instance when moving that to the core code. Signed-off-by: Thomas Gleixner <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2011-03-30powerpc/pseries: Enable Chelsio network and iWARP driversAnton Blanchard1-0/+3
Ensure the Chelsio T3/T4 network drivers and iWARP drivers are enabled in the pseries config. Signed-off-by: Anton Blanchard <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2011-03-30powerpc/mm: Move the STAB0 location to 0x8000 to make room in low memoryBenjamin Herrenschmidt2-15/+15
Recent upstream builds with allmodconfig fail due to lack of space between 0x3000 and 0x6000. We have a hard block at 0x7000 but we can spare a page by moving the STAB0 from 0x6000 to 0x8000. Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2011-03-30powerpc: Fix accounting of softirq time when idleAnton Blanchard1-1/+1
commit cf9efce0ce31 (powerpc: Account time using timebase rather than PURR) used in_irq() to detect if the time was spent in interrupt processing. This only catches hardirq context so if we are in softirq context and in the idle loop we end up accounting it as idle time. If we instead use in_interrupt() we catch both softirq and hardirq time. The issue was found when running a network intensive workload. top showed the following: 0.0%us, 1.1%sy, 0.0%ni, 85.7%id, 0.0%wa, 9.9%hi, 3.3%si, 0.0%st 85.7% idle. But this was wildly different to the perf events data. To confirm the suspicion I ran something to keep the core busy: # yes > /dev/null & 8.2%us, 0.0%sy, 0.0%ni, 0.0%id, 0.0%wa, 10.3%hi, 81.4%si, 0.0%st We only got 8.2% of the CPU for the userspace task and softirq has shot up to 81.4%. With the patch below top shows the correct stats: 0.0%us, 0.0%sy, 0.0%ni, 5.3%id, 0.0%wa, 13.3%hi, 81.3%si, 0.0%st Signed-off-by: Anton Blanchard <[email protected]> Cc: [email protected] Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2011-03-30powerpc/pseries/smp: query-cpu-stopped-state support won't changeMilton Miller1-2/+2
If a given firmware doesn't have a token to support query-cpu-stopped-state, its not likely to change during the lifetime of the kernel. Only print this information once, not once per secondary thread. While here, make the line wrap grep friendly. Signed-off-by: Milton Miller <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2011-03-30powerpc/xics: Use hwirq for xics domain irq numberMilton Miller1-28/+29
To try to avoid future confusion, rename irq to hwirq when it refers to a xics domain number instead of a linux irq number. Signed-off-by: Milton Miller <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2011-03-30powerpc/xics: Fix numberspace mismatch from irq_desc conversionMilton Miller1-8/+8
commit 79f26c268ebad29bd75d078cfc09d3d82b30ccbd (powerpc: platforms/pseries irq_data conversion) pushed irq_desc down into many functions, dererencing the descriptor irq field as late as possible. But it incorrectly passed a linix virtural irq number to RTAS, resulting in the interrupt not being disabled and possibly other bad things, such as another interrupt being disabled and/or a checkstop. In addition this missed the point of xics_mask_unknown_vec and the seperation of xics_mask_real_irq from xics_mask_irq. When xics_mask_unknown_vec is called it's because the hardware delivered an irq source for which we have no linux irq allocated, and thefore we can not have an irq_desc allocated. Revert xics_mask_real_irq to its prior version, naming the argument hwirq to highlight the difference. Signed-off-by: Milton Miller <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2011-03-30powerpc: Wire up new syscallsStephen Rothwell2-1/+9
These syscalls have been added recently: name_to_handle_at open_by_handle_at clock_adjtime syncfs Signed-off-by: Stephen Rothwell <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2011-03-30powerpc/booke: Correct the SPRN_MAS5 definition.Varun Sethi1-1/+1
339 is the SPR number for MAS5 documented by Power ISA 2.06, and implemented by e500mc. It is not yet used anywhere in the kernel, so nothing should be relying on the wrong number. Signed-off-by: Varun Sethi <[email protected]> Signed-off-by: Scott Wood <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2011-03-30powerpc: ARCH_PFN_OFFSET should be unsigned longScott Wood1-1/+1
pfns are unsigned long, but MEMORY_START is phys_addr_t. This leads to page_to_pfn() returning phys_addr_t, and thus type mismatches in a few print statements. Signed-off-by: Scott Wood <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2011-03-30powerpc: Implement dma_mmap_coherent()Benjamin Herrenschmidt3-0/+44
This is used by Alsa to mmap buffers allocated with dma_alloc_coherent() into userspace. We need a special variant to handle machines with non-coherent DMAs as those buffers have "special" virt addresses and require non-cachable mappings Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2011-03-30powerpc/nvram: Don't overwrite oops/panic report on normal shutdownJim Keniston1-0/+24
For normal halt, reboot, and poweroff events, refrain from overwriting the lnx,oops-log partition. Also, don't save the dmesg buffer on an emergency-restart event if we've already saved it earlier in panic(). Signed-off-by: Jim Keniston <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2011-03-30powerpc: Restore some misc devices to our configsStephen Rothwell15-0/+15
Uwe Kleine-König reported: while working on an defconfig (arm/mx27) I noticed that just updating it[1] results in removing CONFIG_EEPROM_AT24=y. The reason is that since commit v2.6.36-5965-g5f2365d (misc devices: do not enable by default) MISC_DEVICES isn't enabled anymore by default. So all defconfigs that have CONFIG_SOME_SYMBOL=y (or =m) (with SOME_SYMBOL depending on MISC_DEVICES) but not CONFIG_MISC_DEVICES=y suffer from the same problem. This restores those misc devices to the powerpc defconfigs. Signed-off-by: Stephen Rothwell <[email protected]> Cc: Uwe Kleine-König <[email protected] Acked-by: Josh Boyer <[email protected]> Acked-by: Uwe Kleine-König Signed-off-by: Benjamin Herrenschmidt <[email protected]>
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