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Nvidia.com X-MS-Exchange-CrossTenant-Network-Message-Id: f1be0775-88d1-4cdb-3f41-08df0af561f0 X-MS-Exchange-CrossTenant-AuthSource: IA0PR12MB8374.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 05 Sep 2026 02:28:33.7225 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: PMoU3rfQ41ZXKerLTvgCS/VJ4yBYQWQuXL7JOGOyU+ynjEOJeCQAn2y9a8XyQdwS X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH3PR12MB9021 X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: DA50C100003 X-Stat-Signature: y6qwj5wpdphayhgbssygt8zrjb87dju3 X-Rspam-User: X-HE-Tag: 1788575322-198758 X-HE-Meta: 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DHztGluf2EH2oV0pJjoST5w312YlNNqakYTEAkGWPAsPX4bNMrw66yYB2LDFY5ydgZUxfS3DunDOAaBQPnh+Sgx3Vp8LWwHee0HtMtullPiWk/SoC2ivhpdzfpMpcWeEL3HzhZdxegSMx4aBnEtLnNapOhTPlTYSPFswV+j1AuHNjYy/Ai6L30QVBsz1TV6KOPgBGNxmqx/ZvWCix+/V0JBn+ouGZhy23qgrqPerXLFELsqpuM4MPUU0bYTz4QXGEU0KIMSfq4H24kUEDreFoyD45lAdUPjFB3jOIcu1JPiSyGbMfcdYSZvfEbMdQpmYIBufhw/FkFVn8Jw4aQ3glOiMAeEKG67azdO+iXrxIQDFS37hSJIddt1vvaktCnZ/9rDfddXfBVE8NiNbVc9mkHClcbCtaxkb5MMc/5gDoOyvRWl/+VWuC+1PSaAYnAyuUoAlwH062ehn4fOahrpmFPxYxhg== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Fri Sep 4, 2026 at 11:10 AM EDT, Kiryl Shutsemau wrote: > From: "Kiryl Shutsemau (Meta)" > > The name says less than the bit means. A set bit means not only that the > PTE is present, but also that it passed the other checks: uffd, > lazyfree, anonymity, sharing. The PTE can be considered a collapse > source. > > mthp_collapse() then reads the bitmap starting at the PMD order, so the > bitmap is not specific to mTHP either. > > Name it for what a set bit means, and update the comments that named it. > > No functional change. > > Assisted-by: Claude-Code:claude-opus-5 > Signed-off-by: Kiryl Shutsemau (Meta) > --- > mm/khugepaged.c | 18 +++++++++--------- > 1 file changed, 9 insertions(+), 9 deletions(-) > > @@ -1514,12 +1514,12 @@ static enum scan_result mthp_collapse(struct mm_s= truct *mm, > goto next_order; > =20 > max_ptes_none =3D collapse_max_ptes_none(cc, NULL, order); > - nr_occupied_ptes =3D bitmap_weight_from(cc->mthp_present_ptes, offset, > + nr_occupied_ptes =3D bitmap_weight_from(cc->eligible_ptes, offset, > offset + nr_ptes); s/nr_occupied_ptes/nr_eligible_ptes too? Otherwise, LGTM. Reviewed-by: Zi Yan --=20 Best Regards, Yan, Zi