From: Darrick J. Wong <djwong@kernel.org>
Date: Thu, 21 Nov 2024 00:24:16 +0000 (-0800)
Subject: xfs_db: show the metadata root directory when dumping superblocks
X-Git-Tag: v6.13.0~164
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=720eb8752fdd7b282bd180d46b31f2408efe6888;p=thirdparty%2Fxfsprogs-dev.git

xfs_db: show the metadata root directory when dumping superblocks

Show the metadirino field when appropriate.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---

diff --git a/db/sb.c b/db/sb.c
index 4f115650..fa15b429 100644
--- a/db/sb.c
+++ b/db/sb.c
@@ -50,6 +50,18 @@ sb_init(void)
 	add_command(&version_cmd);
 }
 
+/*
+ * Counts superblock fields that only exist when the metadata directory feature
+ * is enabled.
+ */
+static int
+metadirfld_count(
+	void		*obj,
+	int		startoff)
+{
+	return xfs_has_metadir(mp) ? 1 : 0;
+}
+
 #define	OFF(f)	bitize(offsetof(struct xfs_dsb, sb_ ## f))
 #define	SZC(f)	szcount(struct xfs_dsb, sb_ ## f)
 const field_t	sb_flds[] = {
@@ -113,6 +125,8 @@ const field_t	sb_flds[] = {
 	{ "pquotino", FLDT_INO, OI(OFF(pquotino)), C1, 0, TYP_INODE },
 	{ "lsn", FLDT_UINT64X, OI(OFF(lsn)), C1, 0, TYP_NONE },
 	{ "meta_uuid", FLDT_UUID, OI(OFF(meta_uuid)), C1, 0, TYP_NONE },
+	{ "metadirino", FLDT_INO, OI(OFF(metadirino)), metadirfld_count,
+		FLD_COUNT, TYP_INODE },
 	{ NULL }
 };