- 14 Jul, 2011 7 commits
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Tejun Heo authored
Node affine memblock allocation logic is currently implemented across memblock_alloc_nid() and memblock_alloc_nid_region(). This reorganizes it such that it resembles that of non-NUMA allocation API. Area finding is collected and moved into new exported function memblock_find_in_range_node() which is symmetrical to non-NUMA counterpart - it handles @start/@end and understands ANYWHERE and ACCESSIBLE. memblock_alloc_nid() now simply calls memblock_find_in_range_node() and reserves the returned area. This makes memblock_alloc[_try]_nid() observe ACCESSIBLE limit on node affine allocations too (again, this doesn't make any difference for the current sole user - sparc64). Signed-off-by:
Tejun Heo <tj@kernel.org> Link: http://lkml.kernel.org/r/1310460395-30913-8-git-send-email-tj@kernel.org Cc: Yinghai Lu <yinghai@kernel.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by:
H. Peter Anvin <hpa@linux.intel.com>
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Tejun Heo authored
NUMA aware memblock alloc functions - memblock_alloc_[try_]nid() - weren't properly top-down because memblock_nid_range() scanned forward. This patch reverses memblock_nid_range(), renames it to memblock_nid_range_rev() and updates related functions to implement proper top-down allocation. Signed-off-by:
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Tejun Heo authored
memblock_nid_range() is used to implement memblock_[try_]alloc_nid(). The generic version determines the range by walking early_node_map with for_each_mem_pfn_range(). The generic version is defined __weak to allow arch override. Currently, only sparc overrides it; however, with the previous update to the generic implementation, there isn't much to be gained with arch override. Sparc would behave exactly the same with the generic implementation. This patch disallows arch override for memblock_nid_range() and make both generic and sparc versions static. sparc is only compile tested. Signed-off-by:
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Tejun Heo authored
Given an address range, memblock_nid_range() determines the node the start of the range belongs to and upto where the range stays in the same node. It's implemented by calling get_pfn_range_for_nid(), which determines min and max pfns for a given node, for each node and testing whether start address falls in there. This is not only inefficient but also incorrect when nodes interleave as min-max ranges for nodes overlap. This patch reimplements memblock_nid_range() using for_each_mem_pfn_range(). It's simpler, walks the mem ranges once and can find the exact range the start address falls in. Signed-off-by:
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Tejun Heo authored
The previous patch added for_each_mem_pfn_range() which is more versatile than for_each_active_range_index_in_nid(). This patch replaces for_each_active_range_index_in_nid() and open coded early_node_map[] walks with for_each_mem_pfn_range(). All conversions in this patch are straight-forward and shouldn't cause any functional difference. After the conversions, for_each_active_range_index_in_nid() doesn't have any user left and is removed. Signed-off-by:
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Tejun Heo authored
__absent_pages_in_range() was needlessly complex. Reimplement it using for_each_mem_pfn_range(). Also, update zone_absent_pages_in_node() such that it doesn't call __absent_pages_in_range() with @zone_start_pfn which is larger than @zone_end_pfn. Signed-off-by:
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Tejun Heo authored
Callback based iteration is cumbersome and much less useful than for_each_*() iterator. This patch implements for_each_mem_pfn_range() which replaces work_with_active_regions(). All the current users of work_with_active_regions() are converted. This simplifies walking over early_node_map and will allow converting internal logics in page_alloc to use iterator instead of walking early_node_map directly, which in turn will enable moving node information to memblock. powerpc change is only compile tested. Signed-off-by:
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- 13 Jul, 2011 8 commits
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Tejun Heo authored
memblock_find_base() is a static function with two callers in memblock.c and memblock_find_in_range() is a wrapper around it which just changes the types and order of parameters. Make memblock_find_in_range() take phys_addr_t instead of u64 for consistency and replace memblock_find_base() with it. Signed-off-by:
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Tejun Heo authored
25818f0f (memblock: Make MEMBLOCK_ERROR be 0) thankfully made MEMBLOCK_ERROR 0 and there already are codes which expect error return to be 0. There's no point in keeping MEMBLOCK_ERROR around. End its misery. Signed-off-by:
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Tejun Heo authored
Signed-off-by:
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Tejun Heo authored
After node affine allocation fails, memblock_alloc_try_nid() calls memblock_alloc_base() with @max_addr set to MEMBLOCK_ALLOC_ANYWHERE. This is inconsistent with memblock_alloc() and what the function's sole user - sparc/mm/init_64 - expects, although it doesn't make any difference as sparc64 doesn't have highmem and ACCESSIBLE equals ANYWHERE. This patch makes memblock_alloc_try_nid() use ACCESSIBLE instead of ANYWHERE. This isn't complete as node affine allocation doesn't consider memblock.current_limit. It will be handled with future changes. This patch doesn't introduce any behavior difference. Signed-off-by:
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Tejun Heo authored
a226f6c8 (FRV: Clean up bootmem allocator's page freeing algorithm) separated out __free_pages_bootmem() from free_all_bootmem_core(). __free_pages_bootmem() takes @order argument but it assumes @order is either 0 or ilog2(BITS_PER_LONG). Note that all the current users match that assumption and this doesn't cause actual problems. Fix it by using 1 << order instead of BITS_PER_LONG. Signed-off-by:
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Tejun Heo authored
The return value of memblock_x86_check_reserved_size() doesn't indicate whether there's an overlapping reservatoin or not. It indicates whether the caller needs to iterate further to discover all reserved portions of the specified area. efi_reserve_boot_esrvices() wants to check whether the boot services area overlaps with other reservations but incorrectly used membloc_x86_check_reserved_size(). Use memblock_is_region_reserved() instead. Signed-off-by:
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Tejun Heo authored
SPARSEMEM w/o VMEMMAP and DISCONTIGMEM, both used only on 32bit, use sections array to map pfn to nid which is limited in granularity. If NUMA nodes are laid out such that the mapping cannot be accurate, boot will fail triggering BUG_ON() in mminit_verify_page_links(). On 32bit, it's 512MiB w/ PAE and SPARSEMEM. This seems to have been granular enough until commit 2706a0bf (x86, NUMA: Enable CONFIG_AMD_NUMA on 32bit too). Apparently, there is a machine which aligns NUMA nodes to 128MiB and has only AMD NUMA but not SRAT. This led to the following BUG_ON(). On node 0 totalpages: 2096615 DMA zone: 32 pages used for memmap DMA zone: 0 pages reserved DMA zone: 3927 pages, LIFO batch:0 Normal zone: 1740 pages used for memmap Normal zone: 220978 pages, LIFO batch:31 HighMem zone: 16405 pages used for memmap HighMem zone: 1853533 pages, LIFO batch:31 BUG: Int 6: CR2 (null) EDI (null) ESI 00000002 EBP 00000002 ESP c1543ecc EBX f2400000 EDX 00000006 ECX (null) EAX 00000001 err (null) EIP c16209aa CS 00000060 flg 00010002 Stack: f2400000 00220000 f7200800 c1620613 00220000 01000000 04400000 00238000 (null) f7200000 00000002 f7200b58 f7200800 c1620929 000375fe (null) f7200b80 c16395f0 00200a02 f7200a80 (null) 000375fe 00000002 (null) Pid: 0, comm: swapper Not tainted 2.6.39-rc5-00181-g2706a0bf #17 Call Trace: [<c136b1e5>] ? early_fault+0x2e/0x2e [<c16209aa>] ? mminit_verify_page_links+0x12/0x42 [<c1620613>] ? memmap_init_zone+0xaf/0x10c [<c1620929>] ? free_area_init_node+0x2b9/0x2e3 [<c1607e99>] ? free_area_init_nodes+0x3f2/0x451 [<c1601d80>] ? paging_init+0x112/0x118 [<c15f578d>] ? setup_arch+0x791/0x82f [<c15f43d9>] ? start_kernel+0x6a/0x257 This patch implements node_map_pfn_alignment() which determines maximum internode alignment and update numa_register_memblks() to reject NUMA configuration if alignment exceeds the pfn -> nid mapping granularity of the memory model as determined by PAGES_PER_SECTION. This makes the problematic machine boot w/ flatmem by rejecting the NUMA config and provides protection against crazy NUMA configurations. Signed-off-by:
Hans Rosenfeld <hans.rosenfeld@amd.com> Cc: Conny Seidel <conny.seidel@amd.com> Signed-off-by:
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Tejun Heo authored
DISCONTIGMEM on x86-32 implements pfn -> nid mapping similarly to SPARSEMEM; however, it calls each mapping unit ELEMENT instead of SECTION. This patch renames it to SECTION so that PAGES_PER_SECTION is valid for both DISCONTIGMEM and SPARSEMEM. This will be used by the next patch to implement mapping granularity check. This patch is trivial constant rename. Signed-off-by:
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- 11 Jul, 2011 15 commits
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Linus Torvalds authored
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Linus Torvalds authored
That file harkens back to the days of the big 2.4 -> 2.6 version jump, and was based even then on older versions. Some of it is just obsolete, and Jesper Juhl points out that it talks about kernel versions 2.6 and should be updated to 3.0. Remove some obsolete text, and re-phrase some other to not be 2.6-specific. Reported-by:
Jesper Juhl <jj@chaosbits.net> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6Linus Torvalds authored
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: [media] msp3400: fill in v4l2_tuner based on vt->type field [media] tuner-core.c: don't change type field in g_tuner or g_frequency [media] cx18/ivtv: fix g_tuner support [media] tuner-core: power up tuner when called with s_power(1) [media] v4l2-ioctl.c: check for valid tuner type in S_HW_FREQ_SEEK [media] tuner-core: simplify the standard fixup [media] tuner-core/v4l2-subdev: document that the type field has to be filled in [media] v4l2-subdev.h: remove unused s_mode tuner op [media] feature-removal-schedule: change in how radio device nodes are handled [media] bttv: fix s_tuner for radio [media] pvrusb2: fix g/s_tuner support [media] v4l2-ioctl.c: prefill tuner type for g_frequency and g/s_tuner [media] tuner-core: fix tuner_resume: use t->mode instead of t->type [media] tuner-core: fix s_std and s_tuner
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6Linus Torvalds authored
* 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6: PM: Reintroduce dropped call to check_wakeup_irqs
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git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6Linus Torvalds authored
* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6: cifs: drop spinlock before calling cifs_put_tlink cifs: fix expand_dfs_referral cifs: move bdi_setup_and_register outside of CONFIG_CIFS_DFS_UPCALL cifs: factor smb_vol allocation out of cifs_setup_volume_info cifs: have cifs_cleanup_volume_info not take a double pointer cifs: fix build_unc_path_to_root to account for a prefixpath cifs: remove bogus call to cifs_cleanup_volume_info
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git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreqLinus Torvalds authored
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq: [CPUFREQ] fix cpumask memory leak in acpi-cpufreq on cpu hotplug.
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Linus Torvalds authored
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mjg59/platform-drivers-x86 * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mjg59/platform-drivers-x86: hp-wmi: fix use after free dell-laptop - using buffer without mutex_lock Revert: "dell-laptop: Toggle the unsupported hardware killswitch" platform-drivers-x86: set backlight type to BACKLIGHT_PLATFORM thinkpad-acpi: handle HKEY 0x4010, 0x4011 events drivers/platform/x86: Fix memory leak thinkpad-acpi: handle some new HKEY 0x60xx events acer-wmi: fix bitwise bug when set device state acer-wmi: Only update rfkill status for associated hotkey events
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git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6Linus Torvalds authored
* 'movieboard' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6: firewire: ohci: do not bind to Pinnacle cards, avert panic
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Joe Perches authored
Signed-off-by:
Joe Perches <joe@perches.com> Acked-by:
Pavel Roskin <proski@gnu.org> Signed-off-by:
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Muthu Kumar authored
Since we removed sti()/cli() and related, how about removing it from Documentation/spinlocks.txt? Signed-off-by:
Muthukumar R <muthur@gmail.com> Signed-off-by:
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Jeff Layton authored
...as that function can sleep. Signed-off-by:
Jeff Layton <jlayton@redhat.com> Signed-off-by:
Steve French <sfrench@us.ibm.com>
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Eric Dumazet authored
[ 191.310008] WARNING: kmemcheck: Caught 32-bit read from freed memory (f0d25f14) [ 191.310011] c056d2f088000000105fd2f00000000050415353040000000000000000000000 [ 191.310020] i i i i f f f f f f f f f f f f f f f f f f f f f f f f f f f f [ 191.310027] ^ [ 191.310029] [ 191.310032] Pid: 737, comm: modprobe Not tainted 3.0.0-rc5+ #268 Hewlett-Packard HP Compaq 6005 Pro SFF PC/3047h [ 191.310036] EIP: 0060:[<f80b3104>] EFLAGS: 00010286 CPU: 0 [ 191.310039] EIP is at hp_wmi_perform_query+0x104/0x150 [hp_wmi] [ 191.310041] EAX: f0d25601 EBX: f0d25f00 ECX: 000121cf EDX: 000121ce [ 191.310043] ESI: f0d25f10 EDI: f0f97ea8 EBP: f0f97ec4 ESP: c173f34c [ 191.310045] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 [ 191.310046] CR0: 8005003b CR2: f540c000 CR3: 30f30000 CR4: 000006d0 [ 191.310048] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 [ 191.310050] DR6: ffff4ff0 DR7: 00000400 [ 191.310051] [<f80b317b>] hp_wmi_dock_state+0x2b/0x40 [hp_wmi] [ 191.310054] [<f80b6093>] hp_wmi_init+0x93/0x1a8 [hp_wmi] [ 191.310057] [<c10011f0>] do_one_initcall+0x30/0x170 [ 191.310061] [<c107ab9f>] sys_init_module+0xef/0x1a60 [ 191.310064] [<c149f998>] sysenter_do_call+0x12/0x28 [ 191.310067] [<ffffffff>] 0xffffffff Signed-off-by:
Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by:
Matthew Garrett <mjg@redhat.com>
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Jose Alonso authored
Using buffer->output[1] without mutex_lock() Signed-off-by:
Jose Alonso <joalonsof@gmail.com> Signed-off-by:
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Keng-Yu Lin authored
This reverts commit a3d77411, as it causes a mess in the wireless rfkill status on some models. It is probably a bad idea to toggle the rfkill for all dell models without the respect to the claim that it is hardware-controlled. Cc: stable@kernel.org Signed-off-by:
Keng-Yu Lin <kengyu@canonical.com> Signed-off-by:
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Colin Cross authored
Patch 2e711c04 (PM: Remove sysdev suspend, resume and shutdown operations) deleted sysdev_suspend(), which was being relied on to call check_wakeup_irqs() in suspend. If check_wakeup_irqs() is not called, wake interrupts that are pending when suspend is entered may be lost. It also breaks IRQCHIP_MASK_ON_SUSPEND, which is handled in check_wakeup_irqs(). This patch adds a call to check_wakeup_irqs() in syscore_suspend(), similar to what was deleted in sysdev_suspend(). Signed-off-by:
Colin Cross <ccross@android.com> Signed-off-by:
Rafael J. Wysocki <rjw@sisk.pl>
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- 10 Jul, 2011 9 commits
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Luming Yu authored
I came across a memory leak during a cyclic cpu-online-offline test. Signed-off-by:
Yu Luming <luming.yu@intel.com> Cc: Len Brown <lenb@kernel.org> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Dave Jones <davej@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/groeck/stagingLinus Torvalds authored
* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/staging: hwmon: (pmbus) Improve auto-detection of temperature status register hwmon: (lm95241) Fix negative temperature results hwmon: (lm95241) Fix chip detection code
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Guenter Roeck authored
It is possible that a PMBus device supports the READ_TEMPERATURE2 and/or READ_TEMPERATURE3 registers but does not support READ_TEMPERATURE1. Improve temperature status register detection to address this condition. Reported-by:
Jean Delvare <khali@linux-fr.org> Signed-off-by:
Guenter Roeck <guenter.roeck@ericsson.com> Acked-by:
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Guenter Roeck authored
Negative temperatures were returned in degrees C instead of milli-Degrees C. Also, negative temperatures were reported for remote temperature sensors even if the chip was configured for positive-only results. Fix by detecting temperature modes, and by treating negative temperatures similar to positive temperatures, with appropriate sign extension. Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6Linus Torvalds authored
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: ALSA: hda - Fix a copmile warning ASoC: ak4642: fixup snd_soc_update_bits mask for PW_MGMT2 ALSA: hda - Change all ADCs for dual-adc switching mode for Realtek ASoC: Manage WM8731 ACTIVE bit as a supply widget ASoC: Don't set invalid name string to snd_card->driver field ASoC: Ensure we delay long enough for WM8994 FLL to lock when starting ASoC: Tegra: I2S: Ensure clock is enabled when writing regs ASoC: Fix Blackfin I2S _pointer() implementation return in bounds values ASoC: tlv320aic3x: Do soft reset to codec when going to bias off state ASoC: tlv320aic3x: Don't sync first two registers from register cache audio: tlv320aic26: fix PLL register configuration
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git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6Linus Torvalds authored
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: PCI: conditional resource-reallocation through kernel parameter pci=realloc
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Linus Torvalds authored
* 'fixes' of master.kernel.org:/home/rmk/linux-2.6-arm: ARM: 6994/1: smp_twd: Fix typo in 'twd_timer_rate' printing ARM: 6987/1: l2x0: fix disabling function to avoid deadlock ARM: 6966/1: ep93xx: fix inverted RTS/DTR signals on uart1 ARM: 6980/1: mmci: use StartBitErr to detect bad connections ARM: 6979/1: mach-vt8500: add forgotten irq_data conversion ARM: move memory layout sanity checking before meminfo initialization ARM: 6990/1: MAINTAINERS: add entry for ARM PMU profiling and debugging ARM: 6989/1: perf: do not start the PMU when no events are present ARM: dmabounce: fix map_single() error return value
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git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6Linus Torvalds authored
* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: drm/radeon/kms: clean up multiple crtc handling for evergreen+ (v2)
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Stefan Richter authored
When firewire-ohci is bound to a Pinnacle MovieBoard, eventually a "Register access failure" is logged and an interrupt storm or a kernel panic happens. https://bugzilla.kernel.org/show_bug.cgi?id=36622 Until this is sorted out (if that is going to succeed at all), let's just prevent firewire-ohci from touching these devices. Signed-off-by:
Stefan Richter <stefanr@s5r6.in-berlin.de> Cc: <stable@kernel.org>
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- 09 Jul, 2011 1 commit
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Jeff Layton authored
Regression introduced in commit 724d9f1c. Prior to that, expand_dfs_referral would regenerate the mount data string and then call cifs_parse_mount_options to re-parse it (klunky, but it worked). The above commit moved cifs_parse_mount_options out of cifs_mount, so the re-parsing of the new mount options no longer occurred. Fix it by making expand_dfs_referral re-parse the mount options. Signed-off-by:
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