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R. Silva" , kasan-dev@googlegroups.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Aleksandr Nogikh , Taras Madan Subject: Re: [PATCH 3/6] lib/stackdepot: introduce __stack_depot_save() Message-ID: <20210910140810.jxb6sfgkdzefqgio@linutronix.de> References: <20210907141307.1437816-1-elver@google.com> <20210907141307.1437816-4-elver@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20210907141307.1437816-4-elver@google.com> X-Rspamd-Server: rspam01 X-Rspamd-Queue-Id: 9EF9330000AC Authentication-Results: imf03.hostedemail.com; dkim=pass header.d=linutronix.de header.s=2020 header.b=tIMCArcK; dkim=pass header.d=linutronix.de header.s=2020e header.b=7JsiFf4a; dmarc=pass (policy=none) header.from=linutronix.de; spf=pass (imf03.hostedemail.com: domain of bigeasy@linutronix.de designates 193.142.43.55 as permitted sender) smtp.mailfrom=bigeasy@linutronix.de X-Stat-Signature: 8zo67crr1nnuxwmezsip4gpi4k9oi41i X-HE-Tag: 1631282895-464899 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On 2021-09-07 16:13:04 [+0200], Marco Elver wrote: > diff --git a/lib/stackdepot.c b/lib/stackdepot.c > index c80a9f734253..cab6cf117290 100644 > --- a/lib/stackdepot.c > +++ b/lib/stackdepot.c > @@ -339,6 +350,25 @@ depot_stack_handle_t stack_depot_save(unsigned long *entries, > fast_exit: > return retval; > } > +EXPORT_SYMBOL_GPL(__stack_depot_save); > + > +/** > + * stack_depot_save - Save a stack trace from an array > + * > + * @entries: Pointer to storage array > + * @nr_entries: Size of the storage array > + * @alloc_flags: Allocation gfp flags > + * > + * Context: Contexts where allocations via alloc_pages() are allowed. Could we add here something like (see __stack_depot_save() for details) since it has more verbose. Sebastian