linux-ext4 - [PATCH 9/9] dumpe2fs, debugfs, e2image: Add support for orphan file

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Message-Id: <20210712154315.9606-10-jack@suse.cz>
Date:   Mon, 12 Jul 2021 17:43:15 +0200
From:   Jan Kara <jack@...e.cz>
To:     Ted Tso <tytso@....edu>
Cc:     <linux-ext4@...r.kernel.org>, Jan Kara <jack@...e.cz>
Subject: [PATCH 9/9] dumpe2fs, debugfs, e2image: Add support for orphan file

Print inode number of orphan file in outputs, dump e2image file to
filesystem image.

Signed-off-by: Jan Kara <jack@...e.cz>
---
 debugfs/set_fields.c | 1 +
 lib/e2p/ls.c         | 3 +++
 misc/e2image.c       | 3 ++-
 3 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/debugfs/set_fields.c b/debugfs/set_fields.c
index b00157940774..f916deab8cea 100644
--- a/debugfs/set_fields.c
+++ b/debugfs/set_fields.c
@@ -183,6 +183,7 @@ static struct field_set_info super_fields[] = {
 	{ "lpf_ino", &set_sb.s_lpf_ino, NULL, 4, parse_uint },
 	{ "checksum_seed", &set_sb.s_checksum_seed, NULL, 4, parse_uint },
 	{ "encoding", &set_sb.s_encoding, NULL, 2, parse_encoding },
+	{ "orphan_file_inum", &set_sb.s_orphan_file_inum, NULL, 4, parse_uint },
 	{ 0, 0, 0, 0 }
 };
 
diff --git a/lib/e2p/ls.c b/lib/e2p/ls.c
index 176bee0fd19f..1762bc44cac4 100644
--- a/lib/e2p/ls.c
+++ b/lib/e2p/ls.c
@@ -482,6 +482,9 @@ void list_super2(struct ext2_super_block * sb, FILE *f)
 	if (ext2fs_has_feature_casefold(sb))
 		fprintf(f, "Character encoding:       %s\n",
 			e2p_encoding2str(sb->s_encoding));
+	if (ext2fs_has_feature_orphan_file(sb))
+		fprintf(f, "Orphan file inode:        %u\n",
+			sb->s_orphan_file_inum);
 }
 
 void list_super (struct ext2_super_block * s)
diff --git a/misc/e2image.c b/misc/e2image.c
index ac00827e4628..a9c64506d7cc 100644
--- a/misc/e2image.c
+++ b/misc/e2image.c
@@ -1369,7 +1369,8 @@ static void write_raw_image_file(ext2_filsys fs, int fd, int type, int flags,
 		    ino == fs->super->s_journal_inum ||
 		    ino == quota_type2inum(USRQUOTA, fs->super) ||
 		    ino == quota_type2inum(GRPQUOTA, fs->super) ||
-		    ino == quota_type2inum(PRJQUOTA, fs->super)) {
+		    ino == quota_type2inum(PRJQUOTA, fs->super) ||
+		    ino == fs->super->s_orphan_file_inum) {
 			retval = ext2fs_block_iterate3(fs, ino,
 					BLOCK_FLAG_READ_ONLY, block_buf,
 					process_dir_block, &pb);
-- 
2.26.2