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Tue, 20 Oct 2020 18:22:49 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkcas08.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Tue, 20 Oct 2020 18:22:51 +0800 From: Lecopzer Chen To: , CC: , , , Lecopzer Chen Subject: [PATCH] mm/cma.c: remove redundant cma_mutex lock Date: Tue, 20 Oct 2020 18:22:41 +0800 Message-ID: <20201020102241.3729-1-lecopzer.chen@mediatek.com> X-Mailer: git-send-email 2.18.0 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 VGhlIGNtYV9tdXRleCB3aGljaCBwcm90ZWN0cyBhbGxvY19jb250aWdfcmFuZ2UoKSB3YXMgZmly c3QgYXBwZWFyZWQgaW4NCmNvbW1pdCA3ZWU3OTNhNjJmYThjICgiY21hOiBSZW1vdmUgcG90ZW50 aWFsIGRlYWRsb2NrIHNpdHVhdGlvbiIpLA0KYXQgdGhhdCB0aW1lLCB0aGVyZSBpcyBubyBndWFy YW50ZWUgdGhlIGJlaGF2aW9yIG9mIGNvbmN1cnJlbmN5IGluc2lkZQ0KYWxsb2NfY29udGlnX3Jh bmdlKCkuDQoNCkFmdGVyIHRoZSBjb21taXQgMmM3NDUyYTA3NWQ0ZGIyZGMNCigibW0vcGFnZV9p c29sYXRpb24uYzogbWFrZSBzdGFydF9pc29sYXRlX3BhZ2VfcmFuZ2UoKSBmYWlsIGlmIGFscmVh ZHkgaXNvbGF0ZWQiKQ0KICA+IEhvd2V2ZXIsIHR3byBzdWJzeXN0ZW1zIChDTUEgYW5kIGdpZ2Fu dGljDQogID4gaHVnZSBwYWdlcyBmb3IgZXhhbXBsZSkgY291bGQgYXR0ZW1wdCBvcGVyYXRpb25z IG9uIHRoZSBzYW1lIHJhbmdlLiAgSWYNCiAgPiB0aGlzIGhhcHBlbnMsIG9uZSB0aHJlYWQgbWF5 ICd1bmRvJyB0aGUgd29yayBhbm90aGVyIHRocmVhZCBpcyBkb2luZy4NCiAgPiBUaGlzIGNhbiBy ZXN1bHQgaW4gcGFnZWJsb2NrcyBiZWluZyBpbmNvcnJlY3RseSBsZWZ0IG1hcmtlZCBhcw0KICA+ IE1JR1JBVEVfSVNPTEFURSBhbmQgdGhlcmVmb3JlIG5vdCBhdmFpbGFibGUgZm9yIHBhZ2UgYWxs b2NhdGlvbi4NClRoZSBjb25jdXJyZW5jeSBpbnNpZGUgYWxsb2NfY29udGlnX3JhbmdlKCkgd2Fz IGNsYXJpZmllZC4NCg0KTm93IHdlIGNhbiBmaW5kIHRoYXQgaHVnZXBhZ2UgYW5kIHZpcnRpbyBj YWxsIGFsbG9jX2NvbnRpZ19yYW5nZSgpIHdpdGhvdXQNCmFueSBsb2NrLCB0aHVzIGNtYV9tdXRl eCBpcyAicmVkdW5kYW50IiBpbiBjbWFfYWxsb2MoKSBub3cuDQoNClNpZ25lZC1vZmYtYnk6IExl Y29wemVyIENoZW4gPGxlY29wemVyLmNoZW5AbWVkaWF0ZWsuY29tPg0KLS0tDQogbW0vY21hLmMg fCA0ICstLS0NCiAxIGZpbGUgY2hhbmdlZCwgMSBpbnNlcnRpb24oKyksIDMgZGVsZXRpb25zKC0p DQoNCmRpZmYgLS1naXQgYS9tbS9jbWEuYyBiL21tL2NtYS5jDQppbmRleCA3ZjQxNWQ3Y2RhOWYu LjM2OTJhMzRlMjM1MyAxMDA2NDQNCi0tLSBhL21tL2NtYS5jDQorKysgYi9tbS9jbWEuYw0KQEAg LTM4LDcgKzM4LDYgQEANCiANCiBzdHJ1Y3QgY21hIGNtYV9hcmVhc1tNQVhfQ01BX0FSRUFTXTsN CiB1bnNpZ25lZCBjbWFfYXJlYV9jb3VudDsNCi1zdGF0aWMgREVGSU5FX01VVEVYKGNtYV9tdXRl eCk7DQogDQogcGh5c19hZGRyX3QgY21hX2dldF9iYXNlKGNvbnN0IHN0cnVjdCBjbWEgKmNtYSkN CiB7DQpAQCAtNDU0LDEwICs0NTMsOSBAQCBzdHJ1Y3QgcGFnZSAqY21hX2FsbG9jKHN0cnVjdCBj bWEgKmNtYSwgc2l6ZV90IGNvdW50LCB1bnNpZ25lZCBpbnQgYWxpZ24sDQogCQltdXRleF91bmxv Y2soJmNtYS0+bG9jayk7DQogDQogCQlwZm4gPSBjbWEtPmJhc2VfcGZuICsgKGJpdG1hcF9ubyA8 PCBjbWEtPm9yZGVyX3Blcl9iaXQpOw0KLQkJbXV0ZXhfbG9jaygmY21hX211dGV4KTsNCiAJCXJl dCA9IGFsbG9jX2NvbnRpZ19yYW5nZShwZm4sIHBmbiArIGNvdW50LCBNSUdSQVRFX0NNQSwNCiAJ CQkJICAgICBHRlBfS0VSTkVMIHwgKG5vX3dhcm4gPyBfX0dGUF9OT1dBUk4gOiAwKSk7DQotCQlt dXRleF91bmxvY2soJmNtYV9tdXRleCk7DQorDQogCQlpZiAocmV0ID09IDApIHsNCiAJCQlwYWdl ID0gcGZuX3RvX3BhZ2UocGZuKTsNCiAJCQlicmVhazsNCi0tIA0KMi4xOC4wDQo=