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Wed, 07 Sep 2022 07:50:47 -0700 (PDT) Message-ID: <364fa8ca-80b0-a3b6-6d83-7a9c89b0ac82@bytedance.com> Date: Wed, 7 Sep 2022 22:50:41 +0800 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:102.0) Gecko/20100101 Thunderbird/102.1.2 Subject: Re: [PATCH v3] arm64: run softirqs on the per-CPU IRQ stack Content-Language: en-US To: Will Deacon , Catalin Marinas Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Arnd Bergmann , Mark Rutland References: <20220815124739.15948-1-zhengqi.arch@bytedance.com> <595c912a-1503-d420-f32f-297b824decae@bytedance.com> <430e3e5f-d446-6307-cba0-6f859bce560f@bytedance.com> <20220907133426.GA30248@willie-the-truck> From: Qi Zheng In-Reply-To: <20220907133426.GA30248@willie-the-truck> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220907_075051_269970_26F78FC5 X-CRM114-Status: GOOD ( 15.94 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org CgpPbiAyMDIyLzkvNyAyMTozNCwgV2lsbCBEZWFjb24gd3JvdGU6Cj4gT24gV2VkLCBTZXAgMDcs IDIwMjIgYXQgMDM6MDQ6NDhQTSArMDgwMCwgUWkgWmhlbmcgd3JvdGU6Cj4+Cj4+Cj4+IE9uIDIw MjIvOC8yNiAxMjoxNiwgUWkgWmhlbmcgd3JvdGU6Cj4+Pgo+Pj4KPj4+IE9uIDIwMjIvOC8xNSAy MDo0NywgUWkgWmhlbmcgd3JvdGU6Cj4+Pj4gQ3VycmVudGx5IGFybTY0IHN1cHBvcnRzIHBlci1D UFUgSVJRIHN0YWNrLCBidXQgc29mdGlycXMKPj4+PiBhcmUgc3RpbGwgaGFuZGxlZCBpbiB0aGUg dGFzayBjb250ZXh0Lgo+Pj4+Cj4+Pj4gU2luY2UgYW55IGNhbGwgdG8gbG9jYWxfYmhfZW5hYmxl KCkgYXQgYW55IGxldmVsIGluIHRoZSB0YXNrJ3MKPj4+PiBjYWxsIHN0YWNrIG1heSB0cmlnZ2Vy IGEgc29mdGlycSBwcm9jZXNzaW5nIHJ1biwgd2hpY2ggY291bGQKPj4+PiBwb3RlbnRpYWxseSBj YXVzZSBhIHRhc2sgc3RhY2sgb3ZlcmZsb3cgaWYgdGhlIGNvbWJpbmVkIHN0YWNrCj4+Pj4gZm9v dHByaW50cyBleGNlZWQgdGhlIHN0YWNrJ3Mgc2l6ZSwgbGV0J3MgcnVuIHRoZXNlIHNvZnRpcnFz Cj4+Pj4gb24gdGhlIElSUSBzdGFjayBhcyB3ZWxsLgo+Pj4+Cj4+Pj4gU2lnbmVkLW9mZi1ieTog UWkgWmhlbmcgPHpoZW5ncWkuYXJjaEBieXRlZGFuY2UuY29tPgo+Pj4+IFJldmlld2VkLWJ5OiBB cm5kIEJlcmdtYW5uIDxhcm5kQGFybmRiLmRlPgo+Pj4+IEFja2VkLWJ5OiBXaWxsIERlYWNvbiA8 d2lsbEBrZXJuZWwub3JnPgo+Pj4+IC0tLQo+Pj4+IHYyOiBodHRwczovL2xvcmUua2VybmVsLm9y Zy9sa21sLzIwMjIwODAyMDY1MzI1LjM5NzQwLTEtemhlbmdxaS5hcmNoQGJ5dGVkYW5jZS5jb20v Cj4+Pj4gdjE6IGh0dHBzOi8vbG9yZS5rZXJuZWwub3JnL2xrbWwvMjAyMjA3MDgwOTQ5NTAuNDE5 NDQtMS16aGVuZ3FpLmFyY2hAYnl0ZWRhbmNlLmNvbS8KPj4+PiBSRkM6IGh0dHBzOi8vbG9yZS5r ZXJuZWwub3JnL2xrbWwvMjAyMjA3MDcxMTA1MTEuNTIxMjktMS16aGVuZ3FpLmFyY2hAYnl0ZWRh bmNlLmNvbS8KPj4+Pgo+Pj4+IENoYW5nZWxvZyBpbiB2MiAtPiB2MzoKPj4+PiAgwqAgLSByZWJh c2Ugb250byB0aGUgdjYuMC1yYzEKPj4KPj4gSGkgV2lsbCwKPj4KPj4gQXJlIHdlIGdvb2QgdG8g bWVyZ2UgdGhpcyBwYXRjaD8gT3IgaWYgdGhlcmUgaXMgYW55dGhpbmcgZWxzZSBJIG5lZWQgdG8K Pj4gZG8sIHBsZWFzZSBsZXQgbWUga25vdy4gOikKPiAKPiBJJ20gZXhwZWN0aW5nIENhdGFsaW4g dG8gcGljayB0aGlzIG9uZSB1cCBmb3IgNi4xLgoKT2gsIEkgc2VlLiBMb29raW5nIGZvcndhcmQg dG8gdGhpcy4KClRoYW5rcyBhIGxvdC4KUWkKCj4gCj4gV2lsbAoKLS0gClRoYW5rcywKUWkKCl9f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmxpbnV4LWFybS1r ZXJuZWwgbWFpbGluZyBsaXN0CmxpbnV4LWFybS1rZXJuZWxAbGlzdHMuaW5mcmFkZWFkLm9yZwpo dHRwOi8vbGlzdHMuaW5mcmFkZWFkLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4LWFybS1rZXJu ZWwK