Re: [RFC PATCH 03/30] Lazy percpu counters

[RFC PATCH 00/30] Code tagging framework and applications · Suren Baghdasaryan <surenb@google.com> · 2022-08-30
[RFC PATCH 01/30] kernel/module: move find_kallsyms_symbol_value declaration · Suren Baghdasaryan <surenb@google.com> · 2022-08-30
[RFC PATCH 02/30] lib/string_helpers: Drop space in string_get_size's output · Suren Baghdasaryan <surenb@google.com> · 2022-08-30
[RFC PATCH 03/30] Lazy percpu counters · Suren Baghdasaryan <surenb@google.com> · 2022-08-30
Re: [RFC PATCH 03/30] Lazy percpu counters · Mel Gorman <mgorman@suse.de> · 2022-08-31
Re: [RFC PATCH 03/30] Lazy percpu counters · Suren Baghdasaryan <surenb@google.com> · 2022-08-31
Re: [RFC PATCH 03/30] Lazy percpu counters · Kent Overstreet <kent.overstreet@linux.dev> · 2022-08-31
Re: [RFC PATCH 03/30] Lazy percpu counters · Peter Zijlstra <peterz@infradead.org> · 2022-09-01
Re: [RFC PATCH 03/30] Lazy percpu counters · Kent Overstreet <kent.overstreet@linux.dev> · 2022-09-01
Re: [RFC PATCH 03/30] Lazy percpu counters · Steven Rostedt <rostedt@goodmis.org> · 2022-09-01
Re: [RFC PATCH 03/30] Lazy percpu counters · Kent Overstreet <kent.overstreet@linux.dev> · 2022-09-01
Re: [RFC PATCH 03/30] Lazy percpu counters · Peter Zijlstra <peterz@infradead.org> · 2022-09-01
[RFC PATCH 04/30] scripts/kallysms: Always include __start and __stop symbols · Suren Baghdasaryan <surenb@google.com> · 2022-08-30
[RFC PATCH 05/30] lib: code tagging framework · Suren Baghdasaryan <surenb@google.com> · 2022-08-30
[RFC PATCH 06/30] lib: code tagging module support · Suren Baghdasaryan <surenb@google.com> · 2022-08-30
[RFC PATCH 07/30] lib: add support for allocation tagging · Suren Baghdasaryan <surenb@google.com> · 2022-08-30
[RFC PATCH 08/30] lib: introduce page allocation tagging · Suren Baghdasaryan <surenb@google.com> · 2022-08-30
[RFC PATCH 09/30] change alloc_pages name in dma_map_ops to avoid name conflicts · Suren Baghdasaryan <surenb@google.com> · 2022-08-30
[RFC PATCH 10/30] mm: enable page allocation tagging for __get_free_pages and alloc_pages · Suren Baghdasaryan <surenb@google.com> · 2022-08-30
Re: [RFC PATCH 10/30] mm: enable page allocation tagging for __get_free_pages and alloc_pages · Mel Gorman <mgorman@suse.de> · 2022-08-31
Re: [RFC PATCH 10/30] mm: enable page allocation tagging for __get_free_pages and alloc_pages · Suren Baghdasaryan <surenb@google.com> · 2022-08-31
Re: [RFC PATCH 10/30] mm: enable page allocation tagging for __get_free_pages and alloc_pages · Suren Baghdasaryan <surenb@google.com> · 2022-08-31
Re: [RFC PATCH 10/30] mm: enable page allocation tagging for __get_free_pages and alloc_pages · Kent Overstreet <kent.overstreet@linux.dev> · 2022-08-31
Re: [RFC PATCH 10/30] mm: enable page allocation tagging for __get_free_pages and alloc_pages · Suren Baghdasaryan <surenb@google.com> · 2022-09-01
Re: [RFC PATCH 10/30] mm: enable page allocation tagging for __get_free_pages and alloc_pages · Peter Zijlstra <peterz@infradead.org> · 2022-09-01
[RFC PATCH 11/30] mm: introduce slabobj_ext to support slab object extensions · Suren Baghdasaryan <surenb@google.com> · 2022-08-30
Re: [RFC PATCH 11/30] mm: introduce slabobj_ext to support slab object extensions · Roman Gushchin <roman.gushchin@linux.dev> · 2022-09-01
Re: [RFC PATCH 11/30] mm: introduce slabobj_ext to support slab object extensions · Suren Baghdasaryan <surenb@google.com> · 2022-09-02
[RFC PATCH 12/30] mm: introduce __GFP_NO_OBJ_EXT flag to selectively prevent slabobj_ext creation · Suren Baghdasaryan <surenb@google.com> · 2022-08-30
[RFC PATCH 13/30] mm/slab: introduce SLAB_NO_OBJ_EXT to avoid obj_ext creation · Suren Baghdasaryan <surenb@google.com> · 2022-08-30
[RFC PATCH 14/30] mm: prevent slabobj_ext allocations for slabobj_ext and kmem_cache objects · Suren Baghdasaryan <surenb@google.com> · 2022-08-30
Re: [RFC PATCH 14/30] mm: prevent slabobj_ext allocations for slabobj_ext and kmem_cache objects · Roman Gushchin <roman.gushchin@linux.dev> · 2022-09-01
Re: [RFC PATCH 14/30] mm: prevent slabobj_ext allocations for slabobj_ext and kmem_cache objects · Suren Baghdasaryan <surenb@google.com> · 2022-09-02
[RFC PATCH 15/30] lib: introduce slab allocation tagging · Suren Baghdasaryan <surenb@google.com> · 2022-08-30
[RFC PATCH 16/30] mm: enable slab allocation tagging for kmalloc and friends · Suren Baghdasaryan <surenb@google.com> · 2022-08-30
Re: [RFC PATCH 16/30] mm: enable slab allocation tagging for kmalloc and friends · Roman Gushchin <roman.gushchin@linux.dev> · 2022-09-01
[RFC PATCH 17/30] lib/string.c: strsep_no_empty() · Suren Baghdasaryan <surenb@google.com> · 2022-08-30
[RFC PATCH 19/30] move stack capture functionality into a separate function for reuse · Suren Baghdasaryan <surenb@google.com> · 2022-08-30
[RFC PATCH 18/30] codetag: add codetag query helper functions · Suren Baghdasaryan <surenb@google.com> · 2022-08-30
[RFC PATCH 20/30] lib: introduce support for storing code tag context · Suren Baghdasaryan <surenb@google.com> · 2022-08-30
[RFC PATCH 21/30] lib: implement context capture support for page and slab allocators · Suren Baghdasaryan <surenb@google.com> · 2022-08-30
[RFC PATCH 22/30] Code tagging based fault injection · Suren Baghdasaryan <surenb@google.com> · 2022-08-30
Re: [RFC PATCH 22/30] Code tagging based fault injection · Randy Dunlap <hidden> · 2022-08-31
Re: [RFC PATCH 22/30] Code tagging based fault injection · Suren Baghdasaryan <surenb@google.com> · 2022-08-31
Re: [RFC PATCH 22/30] Code tagging based fault injection · Dmitry Vyukov <dvyukov@google.com> · 2022-08-31
Re: [RFC PATCH 22/30] Code tagging based fault injection · Suren Baghdasaryan <surenb@google.com> · 2022-08-31
Re: [RFC PATCH 22/30] Code tagging based fault injection · Kent Overstreet <kent.overstreet@linux.dev> · 2022-08-31
Re: [RFC PATCH 22/30] Code tagging based fault injection · Dmitry Vyukov <dvyukov@google.com> · 2022-09-01
[RFC PATCH 23/30] timekeeping: Add a missing include · Suren Baghdasaryan <surenb@google.com> · 2022-08-30
[RFC PATCH 24/30] wait: Clean up waitqueue_entry initialization · Suren Baghdasaryan <surenb@google.com> · 2022-08-30
[RFC PATCH 25/30] lib/time_stats: New library for statistics on events · Suren Baghdasaryan <surenb@google.com> · 2022-08-30
[RFC PATCH 26/30] bcache: Convert to lib/time_stats · Suren Baghdasaryan <surenb@google.com> · 2022-08-30
[RFC PATCH 27/30] Code tagging based latency tracking · Suren Baghdasaryan <surenb@google.com> · 2022-08-30
Re: [RFC PATCH 27/30] Code tagging based latency tracking · Randy Dunlap <hidden> · 2022-08-31
Re: [RFC PATCH 27/30] Code tagging based latency tracking · Suren Baghdasaryan <surenb@google.com> · 2022-08-31
Re: [RFC PATCH 27/30] Code tagging based latency tracking · Peter Zijlstra <peterz@infradead.org> · 2022-09-01
Re: [RFC PATCH 27/30] Code tagging based latency tracking · Kent Overstreet <kent.overstreet@linux.dev> · 2022-09-01
Re: [RFC PATCH 27/30] Code tagging based latency tracking · Steven Rostedt <rostedt@goodmis.org> · 2022-09-01
Re: [RFC PATCH 27/30] Code tagging based latency tracking · Steven Rostedt <rostedt@goodmis.org> · 2022-09-01
Re: [RFC PATCH 27/30] Code tagging based latency tracking · Kent Overstreet <kent.overstreet@linux.dev> · 2022-09-01
Re: [RFC PATCH 27/30] Code tagging based latency tracking · Steven Rostedt <rostedt@goodmis.org> · 2022-09-01
Re: [RFC PATCH 27/30] Code tagging based latency tracking · Kent Overstreet <kent.overstreet@linux.dev> · 2022-09-01
Re: [RFC PATCH 27/30] Code tagging based latency tracking · Steven Rostedt <rostedt@goodmis.org> · 2022-09-02
Re: [RFC PATCH 27/30] Code tagging based latency tracking · Kent Overstreet <kent.overstreet@linux.dev> · 2022-09-02
Re: [RFC PATCH 27/30] Code tagging based latency tracking · Steven Rostedt <rostedt@goodmis.org> · 2022-09-02
[RFC PATCH 28/30] Improved symbolic error names · Suren Baghdasaryan <surenb@google.com> · 2022-08-30
Re: [RFC PATCH 28/30] Improved symbolic error names · Joe Perches <joe@perches.com> · 2022-09-01
Re: [RFC PATCH 28/30] Improved symbolic error names · Kent Overstreet <kent.overstreet@linux.dev> · 2022-09-01
[RFC PATCH 29/30] dyndbg: Convert to code tagging · Suren Baghdasaryan <surenb@google.com> · 2022-08-30
[RFC PATCH 30/30] MAINTAINERS: Add entries for code tagging & related · Suren Baghdasaryan <surenb@google.com> · 2022-08-30
Re: [RFC PATCH 00/30] Code tagging framework and applications · Peter Zijlstra <peterz@infradead.org> · 2022-08-31
Re: [RFC PATCH 00/30] Code tagging framework and applications · Kent Overstreet <kent.overstreet@linux.dev> · 2022-08-31
Re: [RFC PATCH 00/30] Code tagging framework and applications · Mel Gorman <mgorman@suse.de> · 2022-08-31
Re: [RFC PATCH 00/30] Code tagging framework and applications · Michal Hocko <mhocko@suse.com> · 2022-08-31
Re: [RFC PATCH 00/30] Code tagging framework and applications · Suren Baghdasaryan <surenb@google.com> · 2022-08-31
Re: [RFC PATCH 00/30] Code tagging framework and applications · Suren Baghdasaryan <surenb@google.com> · 2022-08-31
Re: [RFC PATCH 00/30] Code tagging framework and applications · Kent Overstreet <kent.overstreet@linux.dev> · 2022-08-31
Re: [RFC PATCH 00/30] Code tagging framework and applications · Yosry Ahmed <hidden> · 2022-08-31
Re: [RFC PATCH 00/30] Code tagging framework and applications · Suren Baghdasaryan <surenb@google.com> · 2022-08-31
Re: [RFC PATCH 00/30] Code tagging framework and applications · Roman Gushchin <roman.gushchin@linux.dev> · 2022-09-01
Re: [RFC PATCH 00/30] Code tagging framework and applications · Kent Overstreet <kent.overstreet@linux.dev> · 2022-09-01
Re: [RFC PATCH 00/30] Code tagging framework and applications · Roman Gushchin <roman.gushchin@linux.dev> · 2022-09-01
Re: [RFC PATCH 00/30] Code tagging framework and applications · Suren Baghdasaryan <surenb@google.com> · 2022-09-01
Re: [RFC PATCH 00/30] Code tagging framework and applications · Kent Overstreet <kent.overstreet@linux.dev> · 2022-09-02
Re: [RFC PATCH 00/30] Code tagging framework and applications · Roman Gushchin <roman.gushchin@linux.dev> · 2022-09-02
Re: [RFC PATCH 00/30] Code tagging framework and applications · Kent Overstreet <kent.overstreet@linux.dev> · 2022-09-02
Re: [RFC PATCH 00/30] Code tagging framework and applications · Jens Axboe <axboe@kernel.dk> · 2022-09-02
Re: [RFC PATCH 00/30] Code tagging framework and applications · Kent Overstreet <kent.overstreet@linux.dev> · 2022-09-02
Re: [RFC PATCH 00/30] Code tagging framework and applications · Jens Axboe <axboe@kernel.dk> · 2022-09-02
Re: [RFC PATCH 00/30] Code tagging framework and applications · Kent Overstreet <kent.overstreet@linux.dev> · 2022-09-02
Re: [RFC PATCH 00/30] Code tagging framework and applications · Jens Axboe <axboe@kernel.dk> · 2022-09-02
Re: [RFC PATCH 00/30] Code tagging framework and applications · Michal Hocko <mhocko@suse.com> · 2022-09-01
Re: [RFC PATCH 00/30] Code tagging framework and applications · Suren Baghdasaryan <surenb@google.com> · 2022-09-01
Re: [RFC PATCH 00/30] Code tagging framework and applications · Michal Hocko <mhocko@suse.com> · 2022-09-01
Re: [RFC PATCH 00/30] Code tagging framework and applications · Suren Baghdasaryan <surenb@google.com> · 2022-09-01
Re: [RFC PATCH 00/30] Code tagging framework and applications · Kent Overstreet <kent.overstreet@linux.dev> · 2022-09-01
Re: [RFC PATCH 00/30] Code tagging framework and applications · Michal Hocko <mhocko@suse.com> · 2022-09-05
Re: [RFC PATCH 00/30] Code tagging framework and applications · Kent Overstreet <kent.overstreet@linux.dev> · 2022-09-05
Re: [RFC PATCH 00/30] Code tagging framework and applications · Michal Hocko <mhocko@suse.com> · 2022-09-06
Re: [RFC PATCH 00/30] Code tagging framework and applications · Kent Overstreet <kent.overstreet@linux.dev> · 2022-09-06
Re: [RFC PATCH 00/30] Code tagging framework and applications · Michal Hocko <mhocko@suse.com> · 2022-09-07
Re: [RFC PATCH 00/30] Code tagging framework and applications · Kent Overstreet <kent.overstreet@linux.dev> · 2022-09-07
Re: [RFC PATCH 00/30] Code tagging framework and applications · Steven Rostedt <rostedt@goodmis.org> · 2022-09-07
Re: [RFC PATCH 00/30] Code tagging framework and applications · Kent Overstreet <kent.overstreet@linux.dev> · 2022-09-08
Re: [RFC PATCH 00/30] Code tagging framework and applications · Suren Baghdasaryan <surenb@google.com> · 2022-09-08
Re: [RFC PATCH 00/30] Code tagging framework and applications · Kent Overstreet <kent.overstreet@linux.dev> · 2022-09-08
Re: [RFC PATCH 00/30] Code tagging framework and applications · Michal Hocko <mhocko@suse.com> · 2022-09-08
Re: [RFC PATCH 00/30] Code tagging framework and applications · Kent Overstreet <kent.overstreet@linux.dev> · 2022-09-08
Re: [RFC PATCH 00/30] Code tagging framework and applications · Michal Hocko <mhocko@suse.com> · 2022-09-08
Re: [RFC PATCH 00/30] Code tagging framework and applications · Suren Baghdasaryan <surenb@google.com> · 2022-09-05
Re: [RFC PATCH 00/30] Code tagging framework and applications · Michal Hocko <mhocko@suse.com> · 2022-09-05
Re: [RFC PATCH 00/30] Code tagging framework and applications · Marco Elver <elver@google.com> · 2022-09-05
Re: [RFC PATCH 00/30] Code tagging framework and applications · Suren Baghdasaryan <surenb@google.com> · 2022-09-05
Re: [RFC PATCH 00/30] Code tagging framework and applications · Suren Baghdasaryan <surenb@google.com> · 2022-09-05
Re: [RFC PATCH 00/30] Code tagging framework and applications · Michal Hocko <mhocko@suse.com> · 2022-09-06
Re: [RFC PATCH 00/30] Code tagging framework and applications · Suren Baghdasaryan <surenb@google.com> · 2022-09-06
Re: [RFC PATCH 00/30] Code tagging framework and applications · Steven Rostedt <rostedt@goodmis.org> · 2022-09-05
Re: [RFC PATCH 00/30] Code tagging framework and applications · Suren Baghdasaryan <surenb@google.com> · 2022-09-05
Re: [RFC PATCH 00/30] Code tagging framework and applications · Kent Overstreet <kent.overstreet@linux.dev> · 2022-09-05
Re: [RFC PATCH 00/30] Code tagging framework and applications · Steven Rostedt <rostedt@goodmis.org> · 2022-09-05
Re: [RFC PATCH 00/30] Code tagging framework and applications · Kent Overstreet <kent.overstreet@linux.dev> · 2022-09-05
Re: [RFC PATCH 00/30] Code tagging framework and applications · David Hildenbrand <hidden> · 2022-09-01
Re: [RFC PATCH 00/30] Code tagging framework and applications · Kent Overstreet <kent.overstreet@linux.dev> · 2022-09-01
Re: [RFC PATCH 00/30] Code tagging framework and applications · David Hildenbrand <hidden> · 2022-09-01
Re: [RFC PATCH 00/30] Code tagging framework and applications · Suren Baghdasaryan <surenb@google.com> · 2022-09-01
Re: [RFC PATCH 00/30] Code tagging framework and applications · Kent Overstreet <kent.overstreet@linux.dev> · 2022-09-01
Re: [RFC PATCH 00/30] Code tagging framework and applications · Kent Overstreet <kent.overstreet@linux.dev> · 2022-08-31
Re: [RFC PATCH 00/30] Code tagging framework and applications · Peter Zijlstra <peterz@infradead.org> · 2022-09-01
Re: [RFC PATCH 00/30] Code tagging framework and applications · Daniel Bristot de Oliveira <hidden> · 2022-09-01
Re: [RFC PATCH 00/30] Code tagging framework and applications · Peter Zijlstra <peterz@infradead.org> · 2022-09-01
Re: [RFC PATCH 00/30] Code tagging framework and applications · Mel Gorman <mgorman@suse.de> · 2022-09-01
Re: [RFC PATCH 00/30] Code tagging framework and applications · Kent Overstreet <kent.overstreet@linux.dev> · 2022-09-01
Re: [RFC PATCH 00/30] Code tagging framework and applications · Peter Zijlstra <peterz@infradead.org> · 2022-09-01
Re: [RFC PATCH 00/30] Code tagging framework and applications · Kent Overstreet <kent.overstreet@linux.dev> · 2022-09-01
Re: [RFC PATCH 00/30] Code tagging framework and applications · Nadav Amit <hidden> · 2022-09-05
Re: [RFC PATCH 00/30] Code tagging framework and applications · Steven Rostedt <rostedt@goodmis.org> · 2022-09-05
Re: [RFC PATCH 00/30] Code tagging framework and applications · Oscar Salvador <osalvador@suse.de> · 2022-09-01
Re: [RFC PATCH 00/30] Code tagging framework and applications · Suren Baghdasaryan <surenb@google.com> · 2022-09-01

From: Peter Zijlstra <peterz@infradead.org>
Date: 2022-09-01 06:51:44
Also in: io-uring, linux-arch, linux-bcache, linux-iommu, linux-mm, lkml, xen-devel

On Tue, Aug 30, 2022 at 02:48:52PM -0700, Suren Baghdasaryan wrote:

+static void lazy_percpu_counter_switch_to_pcpu(struct raw_lazy_percpu_counter *c)
+{
+	u64 __percpu *pcpu_v = alloc_percpu_gfp(u64, GFP_ATOMIC|__GFP_NOWARN);

Realize that this is incorrect when used under a raw_spinlock_t.

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