From fb3e61f921b6b01b7aec9a8a60c93bd7efbbbd35 Mon Sep 17 00:00:00 2001
From: Chao Yu <chao@kernel.org>
Date: Wed, 25 Aug 2021 19:34:19 +0800
Subject: [PATCH] f2fs: fix to unmap pages from userspace process in punch_hole()
Git-commit: c8dc3047c48540183744f959412d44b08c5435e1
Patch-mainline: v5.15-rc1
References: stable-5.14.6

[ Upstream commit c8dc3047c48540183744f959412d44b08c5435e1 ]

We need to unmap pages from userspace process before removing pagecache
in punch_hole() like we did in f2fs_setattr().

Similar change:
commit 5e44f8c374dc ("ext4: hole-punch use truncate_pagecache_range")

Fixes: fbfa2cc58d53 ("f2fs: add file operations")
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 fs/f2fs/file.c |    4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -1082,7 +1082,6 @@ static int punch_hole(struct inode *inod
 		}
 
 		if (pg_start < pg_end) {
-			struct address_space *mapping = inode->i_mapping;
 			loff_t blk_start, blk_end;
 			struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
 
@@ -1094,8 +1093,7 @@ static int punch_hole(struct inode *inod
 			down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
 			filemap_invalidate_lock(inode->i_mapping);
 
-			truncate_inode_pages_range(mapping, blk_start,
-					blk_end - 1);
+			truncate_pagecache_range(inode, blk_start, blk_end - 1);
 
 			f2fs_lock_op(sbi);
 			ret = f2fs_truncate_hole(inode, pg_start, pg_end);