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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() 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: AW1haW4tMjYwOTA4MDE2NSBTYWx0ZWRfX9rdeLvgtJDqA FXPDVjxfA0myUGuOpVcnLe6bCajR7ifi4nDpSjba4+djbB/J9RJey/4soZJt4/GFEUbjZtruZ8J WmAXVKeWZOlmD7XYjvd68RRe+Uy/FXppfYp9TNR9Hx6ggg5vFst4 X-Proofpoint-ORIG-GUID: zWFtbNxqKOIN6ZI0RSdhfK8QnppjTrWQ X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwOTA4MDE2NSBTYWx0ZWRfX4A6y4lFjS5xH wPTjqJi2Ehi958RnkM6bXKQQBchzAnvo1NpyaIfP+jY/edr5ZtourKdsxMackQdUA+FTf8SVn/k 4oq0mBPqApOeoj7Jz7f26uzGinwG+WlgyHhOgOXR1ZrJepfsPIw3HCe0F9/L/ca5Ici1rY4ByFk UQrwdKRxRfExo8/SxTk9XzOKcB9wUaInTrRgaFPEBs6HxAPBw6tAPoXy3e/7H7va1PKp5K83gPt bXyviVRVVioffqofD+xwXj0W+3KIXFNzkjzt3Wl/Jfzv2hlKF30qTi7jKxwhSxOPsKXtuwvxwjr K7LDJqsLl5t++gc+l7CxAhc7P/2DNn2cnSRP4aT/tvRghN/r63hdbQRgUBCXHSEH+agwtTJzGzC Cd2DaHnIt49zNi7fNk0Vipdfv7uUeoMI2LzlDtWxUqipgoZnKSsG7lb1OXG7p13lIfdX93OAHCu otAP5xdlb6dX7uRGGoA== X-Proofpoint-GUID: zWFtbNxqKOIN6ZI0RSdhfK8QnppjTrWQ 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 X-Rspamd-Server: rspam04 X-Rspam-User: X-Stat-Signature: bhfdszddkaguu7s8zxmxyg7wyt87cdzn X-Rspamd-Queue-Id: B2BF3C0015 X-HE-Tag: 1788880608-422151 X-HE-Meta: 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 dvtkytk9 3ZvnxzJ/XC/mcN7hjT61TRZ0VpxLefjDiATfIFgcd4sgkZx6otPLvMgQsW5aFv+WxVaHVEzW6YRwhB6i3WwSs4CHNd2xmyS/h6KhgjYtDi70wzNhFiX/31zhdlX5ot6pyLmibBn8rraZTi6wMEpEsktrh44KcSuyGZAN+F6VPHZkuiSDQ22yreqHHCunpaRVZSM359fvw6oN0S0Hj8iq+qg9rwWsjaMxjUnKTCbVRbMfUUbrHqHdg9XuTlf6uKWbtXCKf1OXNhWTi+rxSdCfbGzV86XBjTi8r4tkpcyXC2HTSvgji4rDYpAare3VN0gEKYBda1L7ER+kuajH+E+/fQ+1+lG1zMs0AAOPY83JK4EOCveAPH1m4kkV2O85BXM7k7WnZJtjp4Lwo9gbcK5Ks2pTcMfvMn29Sd7u3kUpPuc+rZT0= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: 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