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b=ejpaKTF5wj0l8tNe6/yfGNMxd878p1XFtDJ9x1utClV4HTWdxti/26WUHAdwPPUM+ Zzovit40ew+28TEQZkoYW316dLtJgDQXvEUK7O1JkDjH7QUegR6yyX/YG3bteQCSI1 /nv4xRUB9zDtBM+Itz3o2p2E8C2A8jKxijpf7uoq4oQkgzYwdJa7zDL6Y7W46Ebpny KeBbKSOP/wG/tqBVxfPi7TuF+U6KY12IyHSOEq9MwvfVaWwpsVDEsUfJNByFjqFSID TI/+/bbvVfANMVMze7O3Iy80+umsf8ij7dpGhMHrURtp6jRBh49SIrQr2/B2T/t0vs ezHntEzghbAVA== Message-ID: <40381c7e-3f0a-4459-a287-4e098e9a4b13@kernel.org> Date: Wed, 14 Jan 2026 12:45:06 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH mm-new v4 4/6] mm: add folio_is_lazyfree helper To: Lance Yang , Vernon Yang Cc: lorenzo.stoakes@oracle.com, ziy@nvidia.com, akpm@linux-foundation.org, dev.jain@arm.com, baohua@kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, Vernon Yang References: <20260111121909.8410-1-yanglincheng@kylinos.cn> <20260111121909.8410-5-yanglincheng@kylinos.cn> <78a2ab5b-5ece-4d82-a229-594fb8672108@linux.dev> From: "David Hildenbrand (Red Hat)" Content-Language: en-US Autocrypt: addr=david@kernel.org; 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charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 752BC120009 X-Stat-Signature: zo6z7fud9fni8e4te33pjdjk6u8t4uao X-Rspam-User: X-Rspamd-Server: rspam05 X-HE-Tag: 1768391112-186131 X-HE-Meta: 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 YWDREH1Z z+cX3DyWKF7yKON7Cyn5sLRp/bNo7OszZz9P/au1j9wPkTGO8EdxkI7khPR4llDUX3itJgjerSC3TF7h6FRnDF81pBfAnjlyskPUzaAxFyv7+YeWPmADmeqckRHEJDBOARjxK9rqQipNxkhdexDmo02M82hpnqVKZqBhwSav/vdXYZdPIjzSFHo6NWaqBRLxmzcjamr17X9XOiv931lxsd/kNTbQntN81IXDBnR/8Z1272ge0sxneFLGNdURSaRSwCRUJc5EVxH7i2v1Hiz0Kt/uTGaqOxjf6Uq1K 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: List-Subscribe: List-Unsubscribe: On 1/11/26 14:41, Lance Yang wrote: > > > On 2026/1/11 20:19, Vernon Yang wrote: >> Add folio_is_lazyfree() function to identify lazy-free folios to improve >> code readability. >> >> Signed-off-by: Vernon Yang >> --- >> include/linux/mm_inline.h | 5 +++++ >> mm/rmap.c | 2 +- >> mm/vmscan.c | 5 ++--- >> 3 files changed, 8 insertions(+), 4 deletions(-) >> >> diff --git a/include/linux/mm_inline.h b/include/linux/mm_inline.h >> index fa2d6ba811b5..65a4ae52d915 100644 >> --- a/include/linux/mm_inline.h >> +++ b/include/linux/mm_inline.h >> @@ -35,6 +35,11 @@ static inline int page_is_file_lru(struct page *page) >> return folio_is_file_lru(page_folio(page)); >> } >> >> +static inline int folio_is_lazyfree(const struct folio *folio) >> +{ > > It's 2026, could we use bool instead of int? > > Yeah, I see folio_is_file_lru() uses int but that's legacy ... Right, and why not call the function folio_test_lazyfree() and move it to page-flags.h? No strong opinion, just a thought. Acked-by: David Hildenbrand (Red Hat) -- Cheers David