From: Chao Yu <chao@kernel.org>
Date: Wed, 25 Aug 2021 11:34:19 +0000 (+0800)
Subject: f2fs: fix to unmap pages from userspace process in punch_hole()
X-Git-Tag: v5.13.19~247
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ca68b030f854d4822119261bb74a15099d995870;p=thirdparty%2Fkernel%2Fstable.git

f2fs: fix to unmap pages from userspace process in punch_hole()

[ 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>
---

diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index fb27d49e4da72..3a11e81fdf659 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -1086,7 +1086,6 @@ static int punch_hole(struct inode *inode, loff_t offset, loff_t len)
 		}
 
 		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);
 
@@ -1098,8 +1097,7 @@ static int punch_hole(struct inode *inode, loff_t offset, loff_t len)
 			down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
 			down_write(&F2FS_I(inode)->i_mmap_sem);
 
-			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);