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Mon, 5 Oct 2020 10:40:25 +0800 From: Chinwen Chang To: Andrew Morton CC: , Subject: [RESEND,PATCH v4 0/3] Try to release mmap_lock temporarily in smaps_rollup Date: Mon, 5 Oct 2020 10:40:11 +0800 Message-ID: <1601865614-4918-1-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 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 b2RlIGZsb3cgYXMNCi0gc3VnZ2VzdGVkIGJ5IFN0ZXZlLiBbMV0NCg0KQ2hhbmdlIHNpbmNlIHYy Og0KLSBXaGVuIGdldHRpbmcgYmFjayB0aGUgbW1hcCBsb2NrLCB0aGUgYWRkcmVzcyB3aGVyZSB5 b3Ugc3RvcHBlZCBsYXN0DQotIHRpbWUgY291bGQgbm93IGJlIGluIHRoZSBtaWRkbGUgb2YgYSB2 bWEuIEFkZCBvbmUgbW9yZSBjaGVjayB0byBoYW5kbGUNCi0gdGhpcyBjYXNlIGFzIHN1Z2dlc3Rl ZCBieSBNaWNoZWwuIFsyXQ0KDQpDaGFuZ2Ugc2luY2UgdjM6DQotIGxhc3Rfc3RvcHBlZCBpcyBl YXNpbHkgY29uZnVzZWQgd2l0aCBsYXN0X3ZtYV9lbmQuIFJlcGxhY2UgaXQgd2l0aA0KLSBhIGRp cmVjdCBjYWxsIHRvIHNtYXBfZ2F0aGVyX3N0YXRzKHZtYSwgJm1zcywgbGFzdF92bWFfZW5kKSBh cw0KLSBzdWdnZXN0ZWQgYnkgU3RldmUuIFszXQ0KDQpbMV0gaHR0cHM6Ly9sb3JlLmtlcm5lbC5v cmcvbGttbC9iZjQwNjc2ZS1iMTRiLTQ0Y2QtNzVjZS00MTljNzAxOTQ3ODNAYXJtLmNvbS8NClsy XSBodHRwczovL2xvcmUua2VybmVsLm9yZy9sa21sL0NBTk42ODlGdENzQzcxY2pBanMwR1BzcE9o Z29fSFJqK2RpV3NvVTF3cjk4WVBrdGdXZ0BtYWlsLmdtYWlsLmNvbS8NClszXSBodHRwczovL2xv cmUua2VybmVsLm9yZy9sa21sL2RiMGQ0MGUyLTcyZjMtMDlkNS1jMTYyLTljNDkyMThmMTI4ZkBh cm0uY29tLw0KDQoNCkNoaW53ZW4gQ2hhbmcgKDMpOg0KICBtbWFwIGxvY2tpbmcgQVBJOiBhZGQg bW1hcF9sb2NrX2lzX2NvbnRlbmRlZCgpDQogIG1tOiBzbWFwcyo6IGV4dGVuZCBzbWFwX2dhdGhl cl9zdGF0cyB0byBzdXBwb3J0IHNwZWNpZmllZCBiZWdpbm5pbmcNCiAgbW06IHByb2M6IHNtYXBz X3JvbGx1cDogZG8gbm90IHN0YWxsIHdyaXRlIGF0dGVtcHRzIG9uIG1tYXBfbG9jaw0KDQogZnMv cHJvYy90YXNrX21tdS5jICAgICAgICB8IDk2ICsrKysrKysrKysrKysrKysrKysrKysrKysrKysr KysrKysrLS0tLQ0KIGluY2x1ZGUvbGludXgvbW1hcF9sb2NrLmggfCAgNSArKw0KIDIgZmlsZXMg Y2hhbmdlZCwgOTIgaW5zZXJ0aW9ucygrKSwgOSBkZWxldGlvbnMoLSk=