[PATCH v3 09/13] f2fs: fiemap: return correct extent physical length

From: Sweet Tea Dorminy <sweettea-kernel@dorminy.me>
To: "Jonathan Corbet" <corbet@lwn.net>,
	"Kent Overstreet" <kent.overstreet@linux.dev>,
	"Brian Foster" <bfoster@redhat.com>, "Chris Mason" <clm@fb.com>,
	"Josef Bacik" <josef@toxicpanda.com>,
	"David Sterba" <dsterba@suse.com>,
	"Jaegeuk Kim" <jaegeuk@kernel.org>, "Chao Yu" <chao@kernel.org>,
	"Alexander Viro" <viro@zeniv.linux.org.uk>,
	"Christian Brauner" <brauner@kernel.org>,
	"Jan Kara" <jack@suse.cz>, "Mickaël Salaün" <mic@digikod.net>,
	"Sweet Tea Dorminy" <sweettea-kernel@dorminy.me>,
	linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-bcachefs@vger.kernel.org, linux-btrfs@vger.kernel.org,
	linux-f2fs-devel@lists.sourceforge.net,
	linux-fsdevel@vger.kernel.org, kernel-team@meta.com
Subject: [PATCH v3 09/13] f2fs: fiemap: return correct extent physical length
Date: Wed,  3 Apr 2024 03:22:50 -0400	[thread overview]
Message-ID: <3bcdf126c1db6b4119d4bbdd4dc621c3ca3e2ae1.1712126039.git.sweettea-kernel@dorminy.me> (raw)
In-Reply-To: <cover.1712126039.git.sweettea-kernel@dorminy.me>

Signed-off-by: Sweet Tea Dorminy <sweettea-kernel@dorminy.me>
---
 fs/f2fs/data.c   | 25 ++++++++++++++++---------
 fs/f2fs/inline.c |  2 +-
 2 files changed, 17 insertions(+), 10 deletions(-)

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 34af1673461b..2a3625c10125 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -1829,7 +1829,9 @@ static int f2fs_xattr_fiemap(struct inode *inode,
 
 		f2fs_put_page(page, 1);
 
-		flags = FIEMAP_EXTENT_DATA_INLINE | FIEMAP_EXTENT_NOT_ALIGNED;
+		flags = FIEMAP_EXTENT_DATA_INLINE |
+			FIEMAP_EXTENT_NOT_ALIGNED |
+			FIEMAP_EXTENT_HAS_PHYS_LEN;
 
 		if (!xnid)
 			flags |= FIEMAP_EXTENT_LAST;
@@ -1857,7 +1859,7 @@ static int f2fs_xattr_fiemap(struct inode *inode,
 
 		f2fs_put_page(page, 1);
 
-		flags = FIEMAP_EXTENT_LAST;
+		flags = FIEMAP_EXTENT_LAST | FIEMAP_EXTENT_HAS_PHYS_LEN;
 	}
 
 	if (phys) {
@@ -1894,8 +1896,8 @@ int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
 	struct f2fs_map_blocks map;
 	sector_t start_blk, last_blk;
 	pgoff_t next_pgofs;
-	u64 logical = 0, phys = 0, size = 0;
-	u32 flags = 0;
+	u64 logical = 0, phys = 0, size = 0, phys_size = 0;
+	u32 flags = FIEMAP_EXTENT_HAS_PHYS_LEN;
 	int ret = 0;
 	bool compr_cluster = false, compr_appended;
 	unsigned int cluster_size = F2FS_I(inode)->i_cluster_size;
@@ -1981,11 +1983,12 @@ int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
 			flags |= FIEMAP_EXTENT_DATA_ENCRYPTED;
 
 		ret = fiemap_fill_next_extent(fieinfo, logical,
-				phys, size, 0, flags);
-		trace_f2fs_fiemap(inode, logical, phys, size, 0, flags, ret);
+				phys, size, phys_size, flags);
+		trace_f2fs_fiemap(inode, logical, phys, size, phys_size, flags, ret);
 		if (ret)
 			goto out;
 		size = 0;
+		phys_size = 0;
 	}
 
 	if (start_blk > last_blk)
@@ -2006,17 +2009,21 @@ int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
 		phys = __is_valid_data_blkaddr(map.m_pblk) ?
 			blks_to_bytes(inode, map.m_pblk) : 0;
 		size = blks_to_bytes(inode, map.m_len);
-		flags = 0;
+		phys_size = blks_to_bytes(inode, map.m_len);
+		flags = FIEMAP_EXTENT_HAS_PHYS_LEN;
 
 		if (compr_cluster) {
-			flags = FIEMAP_EXTENT_ENCODED;
+			flags = FIEMAP_EXTENT_ENCODED |
+				FIEMAP_EXTENT_HAS_PHYS_LEN;
 			count_in_cluster += map.m_len;
 			if (count_in_cluster == cluster_size) {
 				compr_cluster = false;
 				size += blks_to_bytes(inode, 1);
+				phys_size += blks_to_bytes(inode, 1);
 			}
 		} else if (map.m_flags & F2FS_MAP_DELALLOC) {
-			flags = FIEMAP_EXTENT_UNWRITTEN;
+			flags = FIEMAP_EXTENT_UNWRITTEN |
+				FIEMAP_EXTENT_HAS_PHYS_LEN;
 		}
 
 		start_blk += bytes_to_blks(inode, size);
diff --git a/fs/f2fs/inline.c b/fs/f2fs/inline.c
index 235b0d72f6fc..c1c804a754de 100644
--- a/fs/f2fs/inline.c
+++ b/fs/f2fs/inline.c
@@ -772,7 +772,7 @@ int f2fs_inline_data_fiemap(struct inode *inode,
 {
 	__u64 byteaddr, ilen;
 	__u32 flags = FIEMAP_EXTENT_DATA_INLINE | FIEMAP_EXTENT_NOT_ALIGNED |
-		FIEMAP_EXTENT_LAST;
+		FIEMAP_EXTENT_HAS_PHYS_LEN | FIEMAP_EXTENT_LAST;
 	struct node_info ni;
 	struct page *ipage;
 	int err = 0;
-- 
2.43.0

