From: Chenghao Duan <duanchenghao@kylinos.cn>
Date: Thu, 26 Mar 2026 08:47:24 +0000 (+0800)
Subject: mm/memfd_luo: use i_size_write() to set inode size during retrieve
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=32f6cec5e7511ce3e48d504601035f108844e063;p=thirdparty%2Fkernel%2Flinux.git

mm/memfd_luo: use i_size_write() to set inode size during retrieve

Use i_size_write() instead of directly assigning to inode->i_size when
restoring the memfd size in memfd_luo_retrieve(), to keep code
consistency.

No functional change intended.

Link: https://lore.kernel.org/20260326084727.118437-5-duanchenghao@kylinos.cn
Signed-off-by: Chenghao Duan <duanchenghao@kylinos.cn>
Reviewed-by: Pasha Tatashin <pasha.tatashin@soleen.com>
Cc: Haoran Jiang <jianghaoran@kylinos.cn>
Cc: Mike Rapoport (Microsoft) <rppt@kernel.org>
Cc: Pratyush Yadav <pratyush@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

diff --git a/mm/memfd_luo.c b/mm/memfd_luo.c
index 5a8ead5be087..eb9f4cc0e7ae 100644
--- a/mm/memfd_luo.c
+++ b/mm/memfd_luo.c
@@ -530,7 +530,7 @@ static int memfd_luo_retrieve(struct liveupdate_file_op_args *args)
 	}
 
 	vfs_setpos(file, ser->pos, MAX_LFS_FILESIZE);
-	file->f_inode->i_size = ser->size;
+	i_size_write(file_inode(file), ser->size);
 
 	if (ser->nr_folios) {
 		folios_ser = kho_restore_vmalloc(&ser->folios);