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[128.59.177.174]) by smtp.gmail.com with ESMTPSA id 6a1803df08f44-91040673ce0sm122105496d6.25.2026.09.08.08.16.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 08 Sep 2026 08:16:45 -0700 (PDT) From: Tal Zussman Date: Tue, 08 Sep 2026 11:16:33 -0400 Subject: [PATCH v2 3/8] mm/rmap: use folio_page_swap_entry() in ttu_anon_swapbacked_folio() Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260908-folio_swap_entry-v2-3-ee6d01dfa5e1@columbia.edu> References: <20260908-folio_swap_entry-v2-0-ee6d01dfa5e1@columbia.edu> In-Reply-To: <20260908-folio_swap_entry-v2-0-ee6d01dfa5e1@columbia.edu> To: Andrew Morton , Chris Li , Kairui Song , Kemeng Shi , Nhat Pham , Baoquan He , Barry Song , Youngjun Park , David Hildenbrand , Zi Yan , Baolin Wang , "Liam R. Howlett" , Nico Pache , Ryan Roberts , Dev Jain , Lance Yang , Usama Arif , Kiryl Shutsemau , Lorenzo Stoakes , Rik van Riel , Vlastimil Babka , Harry Yoo , Jann Horn , Johannes Weiner , Yosry Ahmed , Chengming Zhou , Catalin Marinas , Will Deacon , Mark Rutland Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Tal Zussman X-Mailer: b4 0.17-dev-db0b7 X-Developer-Signature: v=1; a=ed25519-sha256; t=1788880600; l=796; i=tz2294@columbia.edu; s=20250528; h=from:subject:message-id; bh=yvkP2mDf2z80hosg9Pmvfjl+tEpO2wMDimHyUBJdJvM=; b=9NTCtRV8ef8tsMDWIW6LGrns0RiqDw6081+w5XUEOPyzRj7uB4Tjy2rWtBHQT/fE7wnw8kXJf Ba8d8kUblc6D13/0BuFkZZ/M0zXTyH+jrCL1a8+dKG8i3uQOKN4EQVo X-Developer-Key: i=tz2294@columbia.edu; a=ed25519; pk=BIj5KdACscEOyAC0oIkeZqLB3L94fzBnDccEooxeM5Y= X-Authority-Analysis: v=2.4 cv=bJQm5v+Z c=1 sm=1 tr=0 ts=6aa026df cx=c_pps a=wEM5vcRIz55oU/E2lInRtA==:117 a=HBUb3goEnnz3w2smY6d+Hw==:17 a=IkcTkHD0fZMA:10 a=VdqzKS8jKosA:10 a=x7bEGLp0ZPQA:10 a=A0y_DWxS2BwA:10 a=VkNPw1HP01LnGYTKEx00:22 a=Da8U98TiO7q1upZEImrf:22 a=svvvyxlR1OQQkelhaPoB:22 a=gAJobatAmFEwf0K8sXEA:9 a=QEXdDO2ut3YA:10 a=OIgjcC2v60KrkQgK7BGD:22 X-Proofpoint-Spam-Info: AW1haW4tMjYwOTA4MDE2NSBTYWx0ZWRfXy8xWDaJzXVI5 LitdUKfMbdtvgcOI5EgqKg/AT35XQ6Hfbl4znYFwqtzAY7Kc4y3Q+/eIb7xPUjxNbEmPF/5qk9e WCyMpHxZ4WEjZBDU8KBxVn/E/VxQIj/z5qM4XSxHuGtPi1HENMdQ X-Proofpoint-ORIG-GUID: yo23EiYzRgr94dIoAb7EVwJw81iUOWlZ X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwOTA4MDE2NSBTYWx0ZWRfXwD3clzeU3jVq hV5g8eyGFEIoo0IJMnVC2NcCX+G/+pQgIIaU2jB6lXJmLb1G7LGCk1PWzUZZKAhpjNvEJC09Tyb ho1I9dkqt4XOIQ/d6AaA6SoUMVpQCCn9CSYYCkqSbdzqn66LYM/Gxn/4sg0IMDmlExwcaj7qk1/ 5DcDxhFZ3tW0iS4JZUS7MNKbS/YtBHIwpO++3isOfeTRFeiICc4EhRomoWjSwVOFEmaw/5CdCk6 MVf2H0kP4xMT5cqEaPolEGx3aPIdsdLLjdDriOjGyE4nVpgdpMmGwwcHrsp/fpCZ4LZ0wvIpzcV VWikQojPUsCebIlZk8/8pFirrRFgy+8cVjf/5l4x03cFbGQWNUE1U3xc95ytMnEqJlvsM7jmu30 RK7+vBWYghP5wIrPZEXDbBR5v49fNeccMDjVWfEdHAsWDe4OvVYl+pRf8k/RtRhMcjxQYdszh7t uB7pqngJ/5mdSkgCwKg== X-Proofpoint-GUID: yo23EiYzRgr94dIoAb7EVwJw81iUOWlZ X-Proofpoint-Virus-Version: vendor=nai engine=6900 definitions=11899 signatures=596817 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=10 impostorscore=10 bulkscore=10 priorityscore=1501 spamscore=0 adultscore=0 suspectscore=0 clxscore=1015 malwarescore=0 phishscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2609080165 We already have the folio here, so use folio_page_swap_entry() instead of going through page_swap_entry(). This saves a call to compound_head(). No functional change. Signed-off-by: Tal Zussman --- mm/rmap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/rmap.c b/mm/rmap.c index 5fefe5b060b1..193e1264b631 100644 --- a/mm/rmap.c +++ b/mm/rmap.c @@ -2147,7 +2147,7 @@ static bool ttu_anon_swapbacked_folio(struct vm_area_struct *vma, { const bool anon_exclusive = folio_test_anon(folio) && PageAnonExclusive(page); - swp_entry_t entry = page_swap_entry(page); + swp_entry_t entry = folio_page_swap_entry(folio, page); struct mm_struct *mm = vma->vm_mm; if (folio_dup_swap(folio, page) < 0) -- 2.39.5