From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christophe Leroy Date: Sat, 03 Sep 2022 06:59:36 +0000 Subject: Re: [PATCH] hugetlb: simplify hugetlb handling in follow_page_mask Message-Id: List-Id: References: <20220829234053.159158-1-mike.kravetz@oracle.com> <608934d4-466d-975e-6458-34a91ccb4669@redhat.com> <739dc825-ece3-a59f-adc5-65861676e0ae@redhat.com> <323fdb0f-c5a5-e0e5-1ff4-ab971bc295cc@redhat.com> In-Reply-To: <323fdb0f-c5a5-e0e5-1ff4-ab971bc295cc@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: David Hildenbrand , Mike Kravetz Cc: "linux-mm@kvack.org" , "linux-kernel@vger.kernel.org" , "inuxppc-dev@lists.ozlabs.org" , "linux-ia64@vger.kernel.org" , Baolin Wang , "Aneesh Kumar K . V" , Naoya Horiguchi , Michael Ellerman , Muchun Song , Andrew Morton DQoNCkxlIDAyLzA5LzIwMjIgw6AgMjA6NTIsIERhdmlkIEhpbGRlbmJyYW5kIGEgw6ljcml0wqA6 DQo+Pj4+IEFkZGluZyBDaHJpc3RvcGhlIG9uIENjOg0KPj4+Pg0KPj4+PiBDaHJpc3RvcGhlIGRv IHlvdSBrbm93IGlmIGlzX2h1Z2VwZCBpcyB0cnVlIGZvciBhbGwgaHVnZXRsYiBlbnRyaWVzLCBu b3QNCj4+Pj4ganVzdCBodWdlcGQ/DQoNCmlzX2h1Z2VwZCgpIGlzIHRydWUgaWYgYW5kIG9ubHkg aWYgdGhlIGRpcmVjdG9yeSBlbnRyeSBwb2ludHMgdG8gYSBodWdlIA0KcGFnZSBkaXJlY3Rvcnkg YW5kIG5vdCB0byB0aGUgbm9ybWFsIGxvd2VyIGxldmVsIGRpcmVjdG9yeS4NCg0KQXMgZmFyIGFz IEkgdW5kZXJzdGFuZCBpZiB0aGUgZGlyZWN0b3J5IGVudHJ5IGlzIG5vdCBwb2ludGluZyB0byBh bnkgDQpsb3dlciBkaXJlY3RvcnkgYnV0IGlzIGEgaHVnZSBwYWdlIGVudHJ5LCBwWGRfbGVhZigp IGlzIHRydWUuDQoNCg0KPj4+Pg0KPj4+PiBPbiBzeXN0ZW1zIHdpdGhvdXQgaHVnZXBkIGVudHJp ZXMsIEkgZ3Vlc3MgcHRkdW1wIHNraXBzIGFsbCBodWdldGxiIGVudHJpZXMuDQo+Pj4+IFNpZ2gh DQoNCkFzIGZhciBhcyBJIGNhbiBzZWUsIHB0ZHVtcF9wWGRfZW50cnkoKSBoYW5kbGVzIHRoZSBw WGRfbGVhZigpIGNhc2UuDQoNCj4+Pg0KPj4+IElJVUMsIHRoZSBpZGVhIG9mIHB0ZHVtcF93YWxr X3BnZCgpIGlzIHRvIGR1bXAgcGFnZSB0YWJsZXMgZXZlbiBvdXRzaWRlDQo+Pj4gVk1BcyAoZm9y IGRlYnVnZ2luZyBwdXJwb3Nlcz8pLg0KPj4+DQo+Pj4gSSBjYW5ub3QgY29udmluY2UgbXlzZWxm IHRoYXQgdGhhdCdzIGEgZ29vZCBpZGVhIHdoZW4gb25seSBob2xkaW5nIHRoZQ0KPj4+IG1tYXAg bG9jayBpbiByZWFkIG1vZGUsIGJlY2F1c2Ugd2UgY2FuIGp1c3Qgc2VlIHBhZ2UgdGFibGVzIGdl dHRpbmcNCj4+PiBmcmVlZCBjb25jdXJyZW50bHkgZS5nLiwgZHVyaW5nIGNvbmN1cnJlbnQgbXVu bWFwKCkgLi4uIHdoaWxlIGhvbGRpbmcNCj4+PiB0aGUgbW1hcCBsb2NrIGluIHJlYWQgd2UgbWF5 IG9ubHkgd2FsayBpbnNpZGUgVk1BIGJvdW5kYXJpZXMuDQo+Pj4NCj4+PiBUaGF0IHRoZW4gcmFp c2VzIHRoZSBxdWVzdGlvbnMgaWYgd2UncmUgb25seSBjYWxsaW5nIHRoaXMgb24gc3BlY2lhbCBN TXMNCj4+PiAoZS5nLiwgaW5pdF9tbSkgd2hlcmVieSB3ZSBjYW5ub3QgcmVhbGx5IHNlZSBjb25j dXJyZW50IG11bm1hcCgpIGFuZA0KPj4+IHdoZXJlIHdlIHNob3VsZG4ndCBoYXZlIGh1Z2V0bGIg bWFwcGluZ3Mgb3IgaHVnZXBkIGVudHJpZXMuDQoNCkF0IGxlYXN0IG9uIHBvd2VycGMsIFBURFVN UCBoYW5kbGVzIG9ubHkgaW5pdF9tbS4NCg0KSHVnZXBhZ2UgYXJlIHVzZWQgYXQgbGVhc3Qgb24g cG93ZXJwYyA4eHggZm9yIGxpbmVhciBtZW1vcnkgbWFwcGluZywgc2VlDQoNCmNvbW1pdCAzNDUz NmQ3ODA2ODMgKCJwb3dlcnBjLzh4eDogQWRkIGEgZnVuY3Rpb24gdG8gZWFybHkgbWFwIGtlcm5l bCANCnZpYSBodWdlIHBhZ2VzIikNCmNvbW1pdCBjZjIwOTk1MWZhN2YgKCJwb3dlcnBjLzh4eDog TWFwIGxpbmVhciBtZW1vcnkgd2l0aCBodWdlIHBhZ2VzIikNCg0KaHVnZXBkcyBtYXkgYWxzbyBi ZSB1c2VkIGluIHRoZSBmdXR1cmUgdG8gdXNlIGh1Z2UgcGFnZXMgZm9yIHZtYXAgYW5kIA0Kdm1h bGxvYywgc2VlIGNvbW1pdCBhNmE4ZjdjNGFhN2UgKCJwb3dlcnBjLzh4eDogYWRkIHN1cHBvcnQg Zm9yIGh1Z2UgDQpwYWdlcyBvbiBWTUFQIGFuZCBWTUFMTE9DIikNCg0KQXMgZmFyIGFzIEkga25v dywgcHBjNjQgYWxzbyB1c2UgaHVnZSBwYWdlcyBmb3IgVk1BUCBhbmQgVk1BTExPQywgc2VlDQoN CmNvbW1pdCBkOTA5ZjkxMDljMzAgKCJwb3dlcnBjLzY0cy9yYWRpeDogRW5hYmxlIEhBVkVfQVJD SF9IVUdFX1ZNQVAiKQ0KY29tbWl0IDhhYmRkZDk2OGEzMCAoInBvd2VycGMvNjRzL3JhZGl4OiBF bmFibGUgaHVnZSB2bWFsbG9jIG1hcHBpbmdzIikNCg0KQ2hyaXN0b3BoZQ=