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From: "Brendan Jackman" References: <20260320-page_alloc-unmapped-v2-0-28bf1bd54f41@google.com> <20260320-page_alloc-unmapped-v2-10-28bf1bd54f41@google.com> <00d11da5-437e-4f3a-88cf-66ab0a729cd1@kernel.org> In-Reply-To: <00d11da5-437e-4f3a-88cf-66ab0a729cd1@kernel.org> X-Migadu-Flow: FLOW_OUT X-Rspamd-Server: rspam11 X-Rspamd-Queue-Id: 2AA3F1C0008 X-Stat-Signature: 59tbnp3dz7pe3kjb7cjdg1mymn1ie5iu X-Rspam-User: X-HE-Tag: 1779062472-946280 X-HE-Meta: U2FsdGVkX1/G7SPxX/STCoYyOVUX8svShRPVqjujRDMFGjk7C3Xdwbu+A2FSqQYeQy2FrClfqrFLnWgmuCAdQsb0bONFN1XsXxkD/mxSYUr5hto2bvxVgSLwLYwI/wr/RN9VBcx9B+HrzlmA2fcPz6Tgvsm+FtSzmH2wqIp841eoLj0HIL+aVpWHoR66DQDSCiQzgBSemqXd1yo8Q92BvLTd/2lLqbShnsZicmUIWVJdeDUht7rw/L3ybJXPR2EhV1qsnKoFfb9HVQ/dawm3ARZFV+Tfv/SsdqVKvuzlIekHFvIFEsHHN2LkTWZ2EH4ICfDbWimVjZM/+WHMbkDRWVrg4PZz9ySL8H3MU8EvvFTczOeLwX1iTzGNGs6Gf9gSt2O2LExz/L82XKM+nRcJnYmFusM6cLBZjDuyymlt4K7wjiCofOMRMepF6NZ1H4MEhMiMg5JI5wbvD7FSxRR5gXEFtAhTwfIkCgORezMb8E/jvow7pDSiTm0L+u12cVtb5/FIha2q4viOputGxL7hjKPJEF9ZnzMQ9L/UJpzNZ4CeCwIyVm1M/dr7Aedbj0QscrozHSII2QeaQtqI3pYKJDmvpCKr6CMvVDtaLP+Qxh7ikMpRGjZ/ccnmjXToiruZh15f8fcOweWlcLqmXiV24mMAbIn5V4KoynARhj0P5q2JzJRSstjqxcbDaSINnYTsmcr2zbxp/sBeOarqyLy5z3nUJiV8ygSeCovnP3t91sV7oxdFJkqxvhY/ELfrFFlOz8hSudXxge/1IKKI84I3VBU2bMfNMv3LsTsKVRuK4P00MNNy01wxmnlE8SgxRLO7/Pkp8D65QVLb5Fb1w9Iq/Oj/tutvh20stdAC5FamuodLqo6JETzIPd4NUIYQV4tK4h4gRX301ojvSaU+nFYSE5P3oNobVBgSFxywz7aMoE+3y6tvhLiKb/xdAgqz2o85MI1dV/iQ63K2+yGiAp5 xw6NRo8l TS8opdFtX2fyp6h1pWeuap9sqrbdXZmz0jYTuP1gJ1l4gCxr8+9efjj87l8NDiyuya+kDVJgFaKUsED/7qqClkYRHI+b+U+glQLQZnnqxnzkF7COGJlrRQ0zIrHddoDWMW5meBfdaQGSyjOrnhORQm0mE/wFJg9iv0P5XbuJeHc4WIogoNQLF1C8tWMu6TaZxEAGF7kMpSCuehwkcOS41Km54byV/j9CoPfszfL3/aWx/Zj5j15Q9hKMoxV94qxxb2SwlQBMyUf2WM0KrWLjG7iP+TEg7PtexX3lDGqqrzwaWOO8gq5hbMFTghLA94VN4A6sH0I+2odMuH0qsUKIPIOU+NikwskbzjCXPYPPWMLerNGULmidysYzEEw== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Mon May 11, 2026 at 11:26 AM PDT, Vlastimil Babka (SUSE) wrote: > On 3/20/26 19:23, Brendan Jackman wrote: >> --- a/mm/page_alloc.c >> +++ b/mm/page_alloc.c >> @@ -422,6 +422,37 @@ bool get_pfnblock_bit(const struct page *page, unsi= gned long pfn, >> return test_bit(bitidx + pb_bit, bitmap_word); >> } >> =20 >> +/** >> + * __get_pfnblock_freetype - Return the freetype of a pageblock, option= ally >> + * ignoring the fact that it's currently isolated. >> + * @page: The page within the block of interest >> + * @pfn: The target page frame number >> + * @ignore_iso: If isolated, return the migratetype that the block had = before >> + * isolation. >> + */ >> +__always_inline freetype_t >> +__get_pfnblock_freetype(const struct page *page, unsigned long pfn, >> + bool ignore_iso) > > Hm I also noticed ignore_iso is ... ignored until later patch. BTW just to note, Sashiko spotted this bug too: https://sashiko.dev/#/patchset/20260320-page_alloc-unmapped-v2-0-28bf1bd54f= 41%40google.com