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dkim=pass header.d=linux.beauty header.s=zmail header.b=KrYo66Fv; arc=pass ("zohomail.com:s=zohoarc:i=1"); dmarc=none; spf=pass (imf09.hostedemail.com: domain of me@linux.beauty designates 136.143.188.14 as permitted sender) smtp.mailfrom=me@linux.beauty X-Rspam-User: X-Rspamd-Server: rspam08 X-Stat-Signature: jisc7gxdo1ruktxwtwi3dp5rozn3f9g3 X-Rspamd-Queue-Id: 38EDA14006D X-HE-Tag: 1657542505-461706 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: From: Li Chen When mhp use sparse_add_section, don't check no-map region, so that to allow no-map reserved memory to get struct page support. Signed-off-by: Li Chen Change-Id: I0d2673cec1b66adf695251037a00c240976b226f --- mm/sparse.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/mm/sparse.c b/mm/sparse.c index 120bc8ea5293..a29cd1e7014f 100644 --- a/mm/sparse.c +++ b/mm/sparse.c @@ -690,7 +690,9 @@ static int fill_subsection_map(unsigned long pfn, unsigned long nr_pages) if (bitmap_empty(map, SUBSECTIONS_PER_SECTION)) rc = -EINVAL; - else if (bitmap_intersects(map, subsection_map, SUBSECTIONS_PER_SECTION)) + else if (memblock_is_map_memory(PFN_PHYS(pfn)) && + bitmap_intersects(map, subsection_map, + SUBSECTIONS_PER_SECTION)) rc = -EEXIST; else bitmap_or(subsection_map, map, subsection_map, -- 2.25.1