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* Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds2009-12-14
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: x86, mce: Clean up thermal init by introducing intel_thermal_supported() x86, mce: Thermal monitoring depends on APIC being enabled x86: Gart: fix breakage due to IOMMU initialization cleanup x86: Move swiotlb initialization before dma32_free_bootmem x86: Fix build warning in arch/x86/mm/mmio-mod.c x86: Remove usedac in feature-removal-schedule.txt x86: Fix duplicated UV BAU interrupt vector nvram: Fix write beyond end condition; prove to gcc copy is safe mm: Adjust do_pages_stat() so gcc can see copy_from_user() is safe x86: Limit the number of processor bootup messages x86: Remove enabling x2apic message for every CPU doc: Add documentation for bootloader_{type,version} x86, msr: Add support for non-contiguous cpumasks x86: Use find_e820() instead of hard coded trampoline address x86, AMD: Fix stale cpuid4_info shared_map data in shared_cpu_map cpumasks Trivial percpu-naming-introduced conflicts in arch/x86/kernel/cpu/intel_cacheinfo.c
| * mm: Adjust do_pages_stat() so gcc can see copy_from_user() is safeH. Peter Anvin2009-12-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Slightly adjust the logic for determining the size of the copy_form_user() in do_pages_stat(); with this change, gcc can see that the copying is safe. Without this, we get a build error for i386 allyesconfig: /home/hpa/kernel/linux-2.6-tip.urgent/arch/x86/include/asm/uaccess_32.h:213: error: call to ‘copy_from_user_overflow’ declared with attribute error: copy_from_user() buffer size is not provably correct Unlike an earlier patch from Arjan, this doesn't introduce new variables; merely reshuffles the compare so that gcc can see that an overflow cannot happen. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Cc: Brice Goglin <Brice.Goglin@inria.fr> Cc: Arjan van de Ven <arjan@infradead.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> LKML-Reference: <20090926205406.30d55b08@infradead.org>
* | Merge branch 'perf-fixes-for-linus' of ↵Linus Torvalds2009-12-14
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 sched: Fix build failure on sparc perf bench: Add "all" pseudo subsystem and "all" pseudo suite perf tools: Introduce perf_session class perf symbols: Ditch dso->find_symbol perf symbols: Allow lookups by symbol name too perf symbols: Add missing "Variables" entry to map_type__name perf symbols: Add support for 'variable' symtabs perf symbols: Introduce ELF counterparts to symbol_type__is_a perf symbols: Introduce symbol_type__is_a perf symbols: Rename kthreads to kmaps, using another abstraction for it perf tools: Allow building for ARM hw-breakpoints: Handle bad modify_user_hw_breakpoint off-case return value perf tools: Allow cross compiling tracing, slab: Fix no callsite ifndef CONFIG_KMEMTRACE tracing, slab: Define kmem_cache_alloc_notrace ifdef CONFIG_TRACING Trivial conflict due to different fixes to modify_user_hw_breakpoint() in include/linux/hw_breakpoint.h
| * | tracing, slab: Fix no callsite ifndef CONFIG_KMEMTRACELi Zefan2009-12-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For slab, if CONFIG_KMEMTRACE and CONFIG_DEBUG_SLAB are not set, __do_kmalloc() will not track callers: # ./perf record -f -a -R -e kmem:kmalloc ^C # ./perf trace ... perf-2204 [000] 147.376774: kmalloc: call_site=c0529d2d ... perf-2204 [000] 147.400997: kmalloc: call_site=c0529d2d ... Xorg-1461 [001] 147.405413: kmalloc: call_site=0 ... Xorg-1461 [001] 147.405609: kmalloc: call_site=0 ... konsole-1776 [001] 147.405786: kmalloc: call_site=0 ... Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Reviewed-by: Pekka Enberg <penberg@cs.helsinki.fi> Cc: Christoph Lameter <cl@linux-foundation.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: linux-mm@kvack.org <linux-mm@kvack.org> Cc: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro> LKML-Reference: <4B21F8AE.6020804@cn.fujitsu.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | tracing, slab: Define kmem_cache_alloc_notrace ifdef CONFIG_TRACINGLi Zefan2009-12-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Define kmem_trace_alloc_{,node}_notrace() if CONFIG_TRACING is enabled, otherwise perf-kmem will show wrong stats ifndef CONFIG_KMEM_TRACE, because a kmalloc() memory allocation may be traced by both trace_kmalloc() and trace_kmem_cache_alloc(). Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Reviewed-by: Pekka Enberg <penberg@cs.helsinki.fi> Cc: Christoph Lameter <cl@linux-foundation.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: linux-mm@kvack.org <linux-mm@kvack.org> Cc: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro> LKML-Reference: <4B21F89A.7000801@cn.fujitsu.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | tracing: Fix kmem event exportsIngo Molnar2009-11-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 53d0422 ("tracing: Convert some kmem events to DEFINE_EVENT") moved the kmem tracepoint creation from util.c to page_alloc.c, but forgot to move the exports. Move them back. Cc: Li Zefan <lizf@cn.fujitsu.com> Cc: Pekka Enberg <penberg@cs.helsinki.fi> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mel Gorman <mel@csn.ul.ie> LKML-Reference: <4B0E286A.2000405@cn.fujitsu.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | tracing: Convert some kmem events to DEFINE_EVENTLi Zefan2009-11-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use DECLARE_EVENT_CLASS to remove duplicate code: text data bss dec hex filename 333987 69800 27228 431015 693a7 mm/built-in.o.old 330030 69800 27228 427058 68432 mm/built-in.o 8 events are converted: kmem_alloc: kmalloc, kmem_cache_alloc kmem_alloc_node: kmalloc_node, kmem_cache_alloc_node kmem_free: kfree, kmem_cache_free mm_page: mm_page_alloc_zone_locked, mm_page_pcpu_drain No change in functionality. Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Acked-by: Pekka Enberg <penberg@cs.helsinki.fi> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mel Gorman <mel@csn.ul.ie> LKML-Reference: <4B0E286A.2000405@cn.fujitsu.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | Merge branch 'for-linus' of ↵Linus Torvalds2009-12-14
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu: (34 commits) m68k: rename global variable vmalloc_end to m68k_vmalloc_end percpu: add missing per_cpu_ptr_to_phys() definition for UP percpu: Fix kdump failure if booted with percpu_alloc=page percpu: make misc percpu symbols unique percpu: make percpu symbols in ia64 unique percpu: make percpu symbols in powerpc unique percpu: make percpu symbols in x86 unique percpu: make percpu symbols in xen unique percpu: make percpu symbols in cpufreq unique percpu: make percpu symbols in oprofile unique percpu: make percpu symbols in tracer unique percpu: make percpu symbols under kernel/ and mm/ unique percpu: remove some sparse warnings percpu: make alloc_percpu() handle array types vmalloc: fix use of non-existent percpu variable in put_cpu_var() this_cpu: Use this_cpu_xx in trace_functions_graph.c this_cpu: Use this_cpu_xx for ftrace this_cpu: Use this_cpu_xx in nmi handling this_cpu: Use this_cpu operations in RCU this_cpu: Use this_cpu ops for VM statistics ... Fix up trivial (famous last words) global per-cpu naming conflicts in arch/x86/kvm/svm.c mm/slab.c
| * \ \ Merge branch 'for-linus' into for-nextTejun Heo2009-12-07
| |\ \ \ | | | | | | | | | | | | | | | | | | | | Conflicts: mm/percpu.c
| | * | | percpu: Fix kdump failure if booted with percpu_alloc=pageVivek Goyal2009-11-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | o kdump functionality reserves a per cpu area at boot time and exports the physical address of that area to user space through sys interface. This area stores some dump related information like cpu register states etc at the time of crash. o We were assuming that per cpu area always come from linearly mapped meory region and using __pa() to determine physical address. With percpu_alloc=page, per cpu area can come from vmalloc region also and __pa() breaks. o This patch implments a new function to convert per cpu address to physical address. Before the patch, crash_notes addresses looked as follows. cpu0 60fffff49800 cpu1 60fffff60800 cpu2 60fffff77800 These are bogus phsyical addresses. After the patch, address are following. cpu0 13eb44000 cpu1 13eb43000 cpu2 13eb42000 cpu3 13eb41000 These look fine. I got 4G of memory and /proc/iomem tell me following. 100000000-13fffffff : System RAM tj: * added missing asm/io.h include reported by Stephen Rothwell * repositioned per_cpu_ptr_phys() in percpu.c and added comment. Signed-off-by: Vivek Goyal <vgoyal@redhat.com> Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Stephen Rothwell <sfr@canb.auug.org.au>
| * | | | percpu: make percpu symbols under kernel/ and mm/ uniqueTejun Heo2009-10-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch updates percpu related symbols under kernel/ and mm/ such that percpu symbols are unique and don't clash with local symbols. This serves two purposes of decreasing the possibility of global percpu symbol collision and allowing dropping per_cpu__ prefix from percpu symbols. * kernel/lockdep.c: s/lock_stats/cpu_lock_stats/ * kernel/sched.c: s/init_rq_rt/init_rt_rq_var/ (any better idea?) s/sched_group_cpus/sched_groups/ * kernel/softirq.c: s/ksoftirqd/run_ksoftirqd/a * kernel/softlockup.c: s/(*)_timestamp/softlockup_\1_ts/ s/watchdog_task/softlockup_watchdog/ s/timestamp/ts/ for local variables * kernel/time/timer_stats: s/lookup_lock/tstats_lookup_lock/ * mm/slab.c: s/reap_work/slab_reap_work/ s/reap_node/slab_reap_node/ * mm/vmstat.c: local variable changed to avoid collision with vmstat_work Partly based on Rusty Russell's "alloc_percpu: rename percpu vars which cause name clashes" patch. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: (slab/vmstat) Christoph Lameter <cl@linux-foundation.org> Reviewed-by: Christoph Lameter <cl@linux-foundation.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Ingo Molnar <mingo@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Nick Piggin <npiggin@suse.de>
| * | | | percpu: remove some sparse warningsTejun Heo2009-10-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make the following changes to remove some sparse warnings. * Make DEFINE_PER_CPU_SECTION() declare __pcpu_unique_* before defining it. * Annotate pcpu_extend_area_map() that it is entered with pcpu_lock held, releases it and then reacquires it. * Make percpu related macros use unique nested variable names. * While at it, add pcpu prefix to __size_call[_return]() macros as to-be-implemented sparse annotations will add percpu specific stuff to these macros. Signed-off-by: Tejun Heo <tj@kernel.org> Reviewed-by: Christoph Lameter <cl@linux-foundation.org> Cc: Rusty Russell <rusty@rustcorp.com.au>
| * | | | vmalloc: fix use of non-existent percpu variable in put_cpu_var()Tejun Heo2009-10-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | vmalloc used non-existent percpu variable vmap_cpu_blocks instead of the intended vmap_block_queue. This went unnoticed because put_cpu_var() didn't evaluate the parameter. Fix it. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Nick Piggin <npiggin@suse.de>
| * | | | Merge branch 'for-linus' into for-nextTejun Heo2009-10-12
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| * | | | | percpu: kill legacy percpu allocatorTejun Heo2009-10-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With ia64 converted, there's no arch left which still uses legacy percpu allocator. Kill it. Signed-off-by: Tejun Heo <tj@kernel.org> Delightedly-acked-by: Rusty Russell <rusty@rustcorp.com.au> Cc: Ingo Molnar <mingo@redhat.com> Cc: Christoph Lameter <cl@linux-foundation.org>
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*-----. \ \ \ \ \ Merge branches 'slab/fixes', 'slab/kmemleak', 'slub/perf' and 'slub/stats' ↵Pekka Enberg2009-12-12
|\ \ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | into for-linus
| | | | * | | | | | slub: allow stats to be clearedDavid Rientjes2009-10-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When collecting slub stats for particular workloads, it's necessary to collect each statistic for all caches before the job is even started because the counters are usually greater than zero just from boot and initialization. This allows a statistic to be cleared on each cpu by writing '0' to its sysfs file. This creates a baseline for statistics of interest before the workload is started. Setting a statistic to a particular value is not supported, so all values written to these files other than '0' returns -EINVAL. Cc: Christoph Lameter <cl@linux-foundation.org> Signed-off-by: David Rientjes <rientjes@google.com> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
| | | * | | | | | | SLUB: Fix __GFP_ZERO unlikely() annotationPekka Enberg2009-11-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The unlikely() annotation in slab_alloc() covers too much of the expression. It's actually very likely that the object is not NULL so use unlikely() only for the __GFP_ZERO expression like SLAB does. The patch reduces kernel text by 29 bytes on x86-64: text data bss dec hex filename 24185 8560 176 32921 8099 mm/slub.o.orig 24156 8560 176 32892 807c mm/slub.o Acked-by: Christoph Lameter <cl@linux-foundation.org> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
| | * | | | | | | | slab, kmemleak: pass the correct pointer to kmemleak_erase()J. R. Okajima2009-12-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In ____cache_alloc(), the variable 'ac' may be changed after cache_alloc_refill() and the following kmemleak_erase() may get an incorrect pointer. Update 'ac' after cache_alloc_refill() unconditionally. See the following URL for the discussion of this patch: http://marc.info/?l=linux-kernel&m=125873373124187&w=2 Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: J. R. Okajima <hooanon05@yahoo.co.jp> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
| | * | | | | | | | slab, kmemleak: stop calling kmemleak_erase() unconditionallyJ. R. Okajima2009-12-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When the gotten object is NULL (probably due to ENOMEM), kmemleak_erase() is unnecessary here, It just sets NULL to where already is NULL. Add a condition. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: J. R. Okajima <hooanon05@yahoo.co.jp> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
| * | | | | | | | | SLAB: Fix unlikely() annotation in __cache_alloc_node()Tim Blechmann2009-12-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Branch profiling on my nehalem machine showed 99% incorrect branch hints: 28459 7678524 99 __cache_alloc_node slab.c 3551 Discussion on lkml [1] led to the solution to remove this hint. [1] http://patchwork.kernel.org/patch/63517/ Signed-off-by: Tim Blechmann <tim@klingt.org> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
| * | | | | | | | | SLAB: Fix lockdep annotations for CPU hotplugPekka Enberg2009-11-30
| |/ / / / / / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As reported by Paul McKenney: I am seeing some lockdep complaints in rcutorture runs that include frequent CPU-hotplug operations. The tests are otherwise successful. My first thought was to send a patch that gave each array_cache structure's ->lock field its own struct lock_class_key, but you already have a init_lock_keys() that seems to be intended to deal with this. ------------------------------------------------------------------------ ============================================= [ INFO: possible recursive locking detected ] 2.6.32-rc4-autokern1 #1 --------------------------------------------- syslogd/2908 is trying to acquire lock: (&nc->lock){..-...}, at: [<c0000000001407f4>] .kmem_cache_free+0x118/0x2d4 but task is already holding lock: (&nc->lock){..-...}, at: [<c0000000001411bc>] .kfree+0x1f0/0x324 other info that might help us debug this: 3 locks held by syslogd/2908: #0: (&u->readlock){+.+.+.}, at: [<c0000000004556f8>] .unix_dgram_recvmsg+0x70/0x338 #1: (&nc->lock){..-...}, at: [<c0000000001411bc>] .kfree+0x1f0/0x324 #2: (&parent->list_lock){-.-...}, at: [<c000000000140f64>] .__drain_alien_cache+0x50/0xb8 stack backtrace: Call Trace: [c0000000e8ccafc0] [c0000000000101e4] .show_stack+0x70/0x184 (unreliable) [c0000000e8ccb070] [c0000000000afebc] .validate_chain+0x6ec/0xf58 [c0000000e8ccb180] [c0000000000b0ff0] .__lock_acquire+0x8c8/0x974 [c0000000e8ccb280] [c0000000000b2290] .lock_acquire+0x140/0x18c [c0000000e8ccb350] [c000000000468df0] ._spin_lock+0x48/0x70 [c0000000e8ccb3e0] [c0000000001407f4] .kmem_cache_free+0x118/0x2d4 [c0000000e8ccb4a0] [c000000000140b90] .free_block+0x130/0x1a8 [c0000000e8ccb540] [c000000000140f94] .__drain_alien_cache+0x80/0xb8 [c0000000e8ccb5e0] [c0000000001411e0] .kfree+0x214/0x324 [c0000000e8ccb6a0] [c0000000003ca860] .skb_release_data+0xe8/0x104 [c0000000e8ccb730] [c0000000003ca2ec] .__kfree_skb+0x20/0xd4 [c0000000e8ccb7b0] [c0000000003cf2c8] .skb_free_datagram+0x1c/0x5c [c0000000e8ccb830] [c00000000045597c] .unix_dgram_recvmsg+0x2f4/0x338 [c0000000e8ccb920] [c0000000003c0f14] .sock_recvmsg+0xf4/0x13c [c0000000e8ccbb30] [c0000000003c28ec] .SyS_recvfrom+0xb4/0x130 [c0000000e8ccbcb0] [c0000000003bfb78] .sys_recv+0x18/0x2c [c0000000e8ccbd20] [c0000000003ed388] .compat_sys_recv+0x14/0x28 [c0000000e8ccbd90] [c0000000003ee1bc] .compat_sys_socketcall+0x178/0x220 [c0000000e8ccbe30] [c0000000000085d4] syscall_exit+0x0/0x40 This patch fixes the issue by setting up lockdep annotations during CPU hotplug. Reported-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Tested-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Christoph Lameter <cl@linux-foundation.org> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
* | | | | | | | | Merge branch 'for_linus' of ↵Linus Torvalds2009-12-11
|\ \ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6 * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6: (21 commits) ext3: PTR_ERR return of wrong pointer in setup_new_group_blocks() ext3: Fix data / filesystem corruption when write fails to copy data ext4: Support for 64-bit quota format ext3: Support for vfsv1 quota format quota: Implement quota format with 64-bit space and inode limits quota: Move definition of QFMT_OCFS2 to linux/quota.h ext2: fix comment in ext2_find_entry about return values ext3: Unify log messages in ext3 ext2: clear uptodate flag on super block I/O error ext2: Unify log messages in ext2 ext3: make "norecovery" an alias for "noload" ext3: Don't update the superblock in ext3_statfs() ext3: journal all modifications in ext3_xattr_set_handle ext2: Explicitly assign values to on-disk enum of filetypes quota: Fix WARN_ON in lookup_one_len const: struct quota_format_ops ubifs: remove manual O_SYNC handling afs: remove manual O_SYNC handling kill wait_on_page_writeback_range vfs: Implement proper O_SYNC semantics ...
| * | | | | | | | | kill wait_on_page_writeback_rangeChristoph Hellwig2009-12-10
| | |_|_|_|_|_|_|/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | All callers really want the more logical filemap_fdatawait_range interface, so convert them to use it and merge wait_on_page_writeback_range into filemap_fdatawait_range. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jan Kara <jack@suse.cz>
* | | | | | | | | switch do_brk() to get_unmapped_area()Al Viro2009-12-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | | | | | | | | Take arch_mmap_check() into get_unmapped_area()Al Viro2009-12-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Acked-by: Hugh Dickins <hugh.dickins@tiscali.co.uk> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | | | | | | | | fix a struct file leak in do_mmap_pgoff()Al Viro2009-12-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | | | | | | | | Unify sys_mmap*Al Viro2009-12-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | New helper - sys_mmap_pgoff(); switch syscalls to using it. Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | | | | | | | | fix pgoff in "have to relocate" case of mremap()Al Viro2009-12-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Acked-by: Hugh Dickins <hugh.dickins@tiscali.co.uk> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | | | | | | | | fix the arch checks in MREMAP_FIXED caseAl Viro2009-12-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Acked-by: Hugh Dickins <hugh.dickins@tiscali.co.uk> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | | | | | | | | fix checks for expand-in-place mremapAl Viro2009-12-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | | | | | | | | do_mremap() untangling, part 3Al Viro2009-12-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Take the check for being able to expand vma in place into a separate helper. Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Acked-by: Hugh Dickins <hugh.dickins@tiscali.co.uk> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | | | | | | | | do_mremap() untangling, part 2Al Viro2009-12-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Take the MREMAP_FIXED into a separate helper, simplify the living hell out of conditions in both cases. Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Acked-by: Hugh Dickins <hugh.dickins@tiscali.co.uk> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | | | | | | | | untangling do_mremap(), part 1Al Viro2009-12-11
|/ / / / / / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Take locating vma and checks on it to a separate helper (it will be shared between MREMAP_FIXED/non-MREMAP_FIXED cases when we split them in the next patch) Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Acked-by: Hugh Dickins <hugh.dickins@tiscali.co.uk> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | | | | | | | Merge branch 'for-linus' of ↵Linus Torvalds2009-12-09
|\ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (42 commits) tree-wide: fix misspelling of "definition" in comments reiserfs: fix misspelling of "journaled" doc: Fix a typo in slub.txt. inotify: remove superfluous return code check hdlc: spelling fix in find_pvc() comment doc: fix regulator docs cut-and-pasteism mtd: Fix comment in Kconfig doc: Fix IRQ chip docs tree-wide: fix assorted typos all over the place drivers/ata/libata-sff.c: comment spelling fixes fix typos/grammos in Documentation/edac.txt sysctl: add missing comments fs/debugfs/inode.c: fix comment typos sgivwfb: Make use of ARRAY_SIZE. sky2: fix sky2_link_down copy/paste comment error tree-wide: fix typos "couter" -> "counter" tree-wide: fix typos "offest" -> "offset" fix kerneldoc for set_irq_msi() spidev: fix double "of of" in comment comment typo fix: sybsystem -> subsystem ...
| * \ \ \ \ \ \ \ Merge branch 'for-next' into for-linusJiri Kosina2009-12-07
| |\ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: kernel/irq/chip.c
| | * | | | | | | | tree-wide: fix assorted typos all over the placeAndré Goddard Rosa2009-12-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | That is "success", "unknown", "through", "performance", "[re|un]mapping" , "access", "default", "reasonable", "[con]currently", "temperature" , "channel", "[un]used", "application", "example","hierarchy", "therefore" , "[over|under]flow", "contiguous", "threshold", "enough" and others. Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| | * | | | | | | | mm: fix comments for invalidate_inode_pages2()Peng Tao2009-12-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | invalidate_inode_pages2() returns -EBUSY *NOT* -EIO if any pages could not be invalidated. Signed-off-by: Peng Tao <bergwolf@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| | * | | | | | | | tree-wide: fix typos "aquire" -> "acquire", "cumsumed" -> "consumed"Uwe Kleine-König2009-11-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch was generated by git grep -E -i -l '[Aa]quire' | xargs -r perl -p -i -e 's/([Aa])quire/$1cquire/' and the cumsumed was found by checking the diff for aquire. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* | | | | | | | | | Merge branch 'for-2.6.33' of git://git.kernel.dk/linux-2.6-blockLinus Torvalds2009-12-08
|\ \ \ \ \ \ \ \ \ \ | |/ / / / / / / / / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-2.6.33' of git://git.kernel.dk/linux-2.6-block: (113 commits) cfq-iosched: Do not access cfqq after freeing it block: include linux/err.h to use ERR_PTR cfq-iosched: use call_rcu() instead of doing grace period stall on queue exit blkio: Allow CFQ group IO scheduling even when CFQ is a module blkio: Implement dynamic io controlling policy registration blkio: Export some symbols from blkio as its user CFQ can be a module block: Fix io_context leak after failure of clone with CLONE_IO block: Fix io_context leak after clone with CLONE_IO cfq-iosched: make nonrot check logic consistent io controller: quick fix for blk-cgroup and modular CFQ cfq-iosched: move IO controller declerations to a header file cfq-iosched: fix compile problem with !CONFIG_CGROUP blkio: Documentation blkio: Wait on sync-noidle queue even if rq_noidle = 1 blkio: Implement group_isolation tunable blkio: Determine async workload length based on total number of queues blkio: Wait for cfq queue to get backlogged if group is empty blkio: Propagate cgroup weight updation to cfq groups blkio: Drop the reference to queue once the task changes cgroup blkio: Provide some isolation between groups ...
| * | | | | | | | | writeback: remove unused nonblocking and congestion checksWu Fengguang2009-12-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - no one is calling wb_writeback and write_cache_pages with wbc.nonblocking=1 any more - lumpy pageout will want to do nonblocking writeback without the congestion wait So remove the congestion checks as suggested by Chris. Signed-off-by: Wu Fengguang <fengguang.wu@intel.com> Cc: Chris Mason <chris.mason@oracle.com> Cc: Jens Axboe <jens.axboe@oracle.com> Cc: Trond Myklebust <Trond.Myklebust@netapp.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: Dave Chinner <david@fromorbit.com> Cc: Evgeniy Polyakov <zbr@ioremap.net> Cc: Alex Elder <aelder@sgi.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| * | | | | | | | | flusher: Fix PF_FROZEN raceOGAWA Hirofumi2009-12-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | To touch task->flags directly is racy. thaw_process() still has race (changing non_current->flags, but this is another issue) though, I think it's much better off. So, use thaw_process() instead. Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* | | | | | | | | | Merge branch 'core-iommu-for-linus' of ↵Linus Torvalds2009-12-05
|\ \ \ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'core-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (63 commits) x86, Calgary IOMMU quirk: Find nearest matching Calgary while walking up the PCI tree x86/amd-iommu: Remove amd_iommu_pd_table x86/amd-iommu: Move reset_iommu_command_buffer out of locked code x86/amd-iommu: Cleanup DTE flushing code x86/amd-iommu: Introduce iommu_flush_device() function x86/amd-iommu: Cleanup attach/detach_device code x86/amd-iommu: Keep devices per domain in a list x86/amd-iommu: Add device bind reference counting x86/amd-iommu: Use dev->arch->iommu to store iommu related information x86/amd-iommu: Remove support for domain sharing x86/amd-iommu: Rearrange dma_ops related functions x86/amd-iommu: Move some pte allocation functions in the right section x86/amd-iommu: Remove iommu parameter from dma_ops_domain_alloc x86/amd-iommu: Use get_device_id and check_device where appropriate x86/amd-iommu: Move find_protection_domain to helper functions x86/amd-iommu: Simplify get_device_resources() x86/amd-iommu: Let domain_for_device handle aliases x86/amd-iommu: Remove iommu specific handling from dma_ops path x86/amd-iommu: Remove iommu parameter from __(un)map_single x86/amd-iommu: Make alloc_new_range aware of multiple IOMMUs ...
| * \ \ \ \ \ \ \ \ \ Merge commit 'v2.6.32-rc7' into core/iommuIngo Molnar2009-11-17
| |\ \ \ \ \ \ \ \ \ \ | | | |_|_|_|_|_|_|_|/ | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Merge reason: Add fixes we'll depend on. Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | | | | | | | | bootmem: Add free_bootmem_late()FUJITA Tomonori2009-11-10
| | |_|/ / / / / / / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a new function for freeing bootmem after the bootmem allocator has been released and the unreserved pages given to the page allocator. This allows us to reserve bootmem and then release it if we later discover it was not needed. ( This new API will be used by the swiotlb code to recover a significant amount of RAM (64MB). ) Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Pekka Enberg <penberg@cs.helsinki.fi> Cc: chrisw@sous-sol.org Cc: dwmw2@infradead.org Cc: joerg.roedel@amd.com Cc: muli@il.ibm.com Cc: hannes@cmpxchg.org Cc: tj@kernel.org Cc: akpm@linux-foundation.org Cc: Linus Torvalds <torvalds@linux-foundation.org> LKML-Reference: <1257849980-22640-7-git-send-email-fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | | | | | | | | Merge branch 'master' into nextJames Morris2009-12-03
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| * | | | | | | | | Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-blockLinus Torvalds2009-11-30
| |\ \ \ \ \ \ \ \ \ | | |_|_|/ / / / / / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-linus' of git://git.kernel.dk/linux-2.6-block: cciss: make device attrs static Thaw refrigerated bdi flusher threads before invoking kthread_stop on them
| | * | | | | | | | Thaw refrigerated bdi flusher threads before invoking kthread_stop on themRomit Dasgupta2009-11-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Unfreezes the bdi flusher task when the said task needs to exit. Steps to reproduce this. 1) Mount a file system from MMC/SD card. 2) Unmount the file system. This creates a flusher task. 3) Attempt suspend to RAM. System is unresponsive. This is because the bdi flusher thread is already in the refrigerator and will remain so until it is thawed. The MMC driver suspend routine call stack will ultimately issue a 'kthread_stop' on the bdi flusher thread and will block until the flusher thread is exited. Since the bdi flusher thread is in the refrigerator it never cleans up until thawed. Signed-off-by: Romit Dasgupta <romit@ti.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| * | | | | | | | | mm: allow memory hotplug and hibernation in the same kernelAndi Kleen2009-11-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Allow memory hotplug and hibernation in the same kernel Memory hotplug and hibernation were exclusive in Kconfig. This is obviously a problem for distribution kernels who want to support both in the same image. After some discussions with Rafael and others the only problem is with parallel memory hotadd or removal while a hibernation operation is in process. It was also working for s390 before. This patch removes the Kconfig level exclusion, and simply makes the memory add / remove functions grab the pm_mutex to exclude against hibernation. Fixes a regression - old kernels didn't exclude memory hotadd and hibernation. Signed-off-by: Andi Kleen <ak@linux.intel.com> Cc: Gerald Schaefer <gerald.schaefer@de.ibm.com> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Yasunori Goto <y-goto@jp.fujitsu.com> Acked-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | | | | | | | | mm/memory_hotplug: fix section mismatchHidetoshi Seto2009-11-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With CONFIG_MEMORY_HOTPLUG I got following warning: WARNING: vmlinux.o(.text+0x1276b0): Section mismatch in reference from the function hotadd_new_pgdat() to the function .meminit.text:free_area_init_node() The function hotadd_new_pgdat() references the function __meminit free_area_init_node(). This is often because hotadd_new_pgdat lacks a __meminit annotation or the annotation of free_area_init_node is wrong. Use __ref to fix this. Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Cc: Minchan Kim <minchan.kim@gmail.com> Cc: Mel Gorman <mel@csn.ul.ie> Cc: Yasunori Goto <y-goto@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-24 14:23:01 -0500