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Thu, 13 Aug 2020 10:13:45 +0800 From: Chinwen Chang To: Matthias Brugger , Michel Lespinasse , Andrew Morton , Vlastimil Babka , Daniel Jordan , Davidlohr Bueso , Chinwen Chang , Alexey Dobriyan , "Matthew Wilcox (Oracle)" , Jason Gunthorpe , Steven Price , Song Liu , Jimmy Assarsson , Huang Ying CC: , , , , Subject: [PATCH v2 0/2] Try to release mmap_lock temporarily in smaps_rollup Date: Thu, 13 Aug 2020 10:13:28 +0800 Message-ID: <1597284810-17454-1-git-send-email-chinwen.chang@mediatek.com> X-Mailer: git-send-email 1.9.1 MIME-Version: 1.0 Content-Type: text/plain X-MTK: N Content-Transfer-Encoding: base64 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org UmVjZW50bHksIHdlIGhhdmUgb2JzZXJ2ZWQgc29tZSBqYW5reSBpc3N1ZXMgY2F1c2VkIGJ5IHVu cGxlYXNhbnRseSBsb25nDQpjb250ZW50aW9uIG9uIG1tYXBfbG9jayB3aGljaCBpcyBoZWxkIGJ5 IHNtYXBzX3JvbGx1cCB3aGVuIHByb2JpbmcgbGFyZ2UNCnByb2Nlc3Nlcy4gVG8gYWRkcmVzcyB0 aGUgcHJvYmxlbSwgd2UgbGV0IHNtYXBzX3JvbGx1cCBkZXRlY3QgaWYgYW55b25lDQp3YW50cyB0 byBhY3F1aXJlIG1tYXBfbG9jayBmb3Igd3JpdGUgYXR0ZW1wdHMuIElmIHllcywganVzdCByZWxl YXNlIHRoZQ0KbG9jayB0ZW1wb3JhcmlseSB0byBlYXNlIHRoZSBjb250ZW50aW9uLg0KDQpzbWFw c19yb2xsdXAgaXMgYSBwcm9jZnMgaW50ZXJmYWNlIHdoaWNoIGFsbG93cyB1c2VycyB0byBzdW1t YXJpemUgdGhlDQpwcm9jZXNzJ3MgbWVtb3J5IHVzYWdlIHdpdGhvdXQgdGhlIG92ZXJoZWFkIG9m IHNlcV8qIGNhbGxzLiBBbmRyb2lkIHVzZXMgaXQNCnRvIHNhbXBsZSB0aGUgbWVtb3J5IHVzYWdl IG9mIHZhcmlvdXMgcHJvY2Vzc2VzIHRvIGJhbGFuY2UgaXRzIG1lbW9yeSBwb29sDQpzaXplcy4g SWYgbm8gb25lIHdhbnRzIHRvIHRha2UgdGhlIGxvY2sgZm9yIHdyaXRlIHJlcXVlc3RzLCBzbWFw c19yb2xsdXANCndpdGggdGhpcyBwYXRjaCB3aWxsIGJlaGF2ZSBsaWtlIHRoZSBvcmlnaW5hbCBv bmUuDQoNCkFsdGhvdWdoIHRoZXJlIGFyZSBvbi1nb2luZyBtbWFwX2xvY2sgb3B0aW1pemF0aW9u cyBsaWtlIHJhbmdlLWJhc2VkIGxvY2tzLA0KdGhlIGxvY2sgYXBwbGllZCB0byBzbWFwc19yb2xs dXAgd291bGQgYmUgdGhlIGNvYXJzZSBvbmUsIHdoaWNoIGlzIGhhcmQgdG8NCmF2b2lkIHRoZSBv Y2N1cnJlbmNlIG9mIGFmb3JlbWVudGlvbmVkIGlzc3Vlcy4gU28gdGhlIGRldGVjdGlvbiBhbmQN CnRlbXBvcmFyeSByZWxlYXNlIGZvciB3cml0ZSBhdHRlbXB0cyBvbiBtbWFwX2xvY2sgaW4gc21h cHNfcm9sbHVwIGlzIHN0aWxsDQpuZWNlc3NhcnkuDQoNCkNoYW5nZSBzaW5jZSB2MToNCi0gSWYg Y3VycmVudCBWTUEgaXMgZnJlZWQgYWZ0ZXIgZHJvcHBpbmcgdGhlIGxvY2ssIGl0IHdpbGwgcmV0 dXJuDQotIGluY29tcGxldGUgcmVzdWx0LiBUbyBmaXggdGhpcyBpc3N1ZSwgcmVmaW5lIHRoZSBj b2RlIGZsb3cgYXMNCi0gc3VnZ2VzdGVkIGJ5IFN0ZXZlLiBbMV0NCg0KWzFdIGh0dHBzOi8vbG9y ZS5rZXJuZWwub3JnL2xrbWwvYmY0MDY3NmUtYjE0Yi00NGNkLTc1Y2UtNDE5YzcwMTk0NzgzQGFy bS5jb20vDQoNCg0KQ2hpbndlbiBDaGFuZyAoMik6DQogIG1tYXAgbG9ja2luZyBBUEk6IGFkZCBt bWFwX2xvY2tfaXNfY29udGVuZGVkKCkNCiAgbW06IHByb2M6IHNtYXBzX3JvbGx1cDogZG8gbm90 IHN0YWxsIHdyaXRlIGF0dGVtcHRzIG9uIG1tYXBfbG9jaw0KDQogZnMvcHJvYy90YXNrX21tdS5j ICAgICAgICB8IDU3ICsrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrLQ0KIGlu Y2x1ZGUvbGludXgvbW1hcF9sb2NrLmggfCAgNSArKysrDQogMiBmaWxlcyBjaGFuZ2VkLCA2MSBp bnNlcnRpb25zKCspLCAxIGRlbGV0aW9uKC0p