diff mbox series

[4/8] xfs_db: access realtime file blocks

Message ID 172983773789.3041229.10050634092165024838.stgit@frogsfrogsfrogs (mailing list archive)
State New
Headers show
Series [1/8] xfs_db: support passing the realtime device to the debugger | expand

Commit Message

Darrick J. Wong Oct. 25, 2024, 6:35 a.m. UTC 
From: Darrick J. Wong <djwong@kernel.org>

Now that we have the ability to point the io cursor at the realtime
device, let's make it so that the "dblock" command can walk the contents
of realtime files.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
---
 db/block.c |   17 +++++++++++++++--
 db/faddr.c |    4 +++-
 2 files changed, 18 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/db/block.c b/db/block.c
index 6ad9f038c6da67..ff34557a612a2f 100644
--- a/db/block.c
+++ b/db/block.c
@@ -196,6 +196,13 @@  dblock_help(void)
 ));
 }
 
+static inline bool
+is_rtfile(
+	struct xfs_dinode	*dip)
+{
+	return dip->di_flags & cpu_to_be16(XFS_DIFLAG_REALTIME);
+}
+
 static int
 dblock_f(
 	int		argc,
@@ -235,8 +242,14 @@  dblock_f(
 	ASSERT(typtab[type].typnm == type);
 	if (nex > 1)
 		make_bbmap(&bbmap, nex, bmp);
-	set_cur(&typtab[type], (int64_t)XFS_FSB_TO_DADDR(mp, dfsbno),
-		nb * blkbb, DB_RING_ADD, nex > 1 ? &bbmap : NULL);
+	if (is_rtfile(iocur_top->data))
+		set_rt_cur(&typtab[type], (int64_t)dfsbno << mp->m_blkbb_log,
+				nb * blkbb, DB_RING_ADD,
+				nex > 1 ? &bbmap : NULL);
+	else
+		set_cur(&typtab[type], (int64_t)XFS_FSB_TO_DADDR(mp, dfsbno),
+				nb * blkbb, DB_RING_ADD,
+				nex > 1 ? &bbmap : NULL);
 	free(bmp);
 	return 0;
 }
diff --git a/db/faddr.c b/db/faddr.c
index ec4aae68bb5a81..fd65b86b5e915d 100644
--- a/db/faddr.c
+++ b/db/faddr.c
@@ -323,7 +323,9 @@  fa_drtbno(
 		dbprintf(_("null block number, cannot set new addr\n"));
 		return;
 	}
-	/* need set_cur to understand rt subvolume */
+
+	set_rt_cur(&typtab[next], (int64_t)XFS_FSB_TO_BB(mp, bno), blkbb,
+			DB_RING_ADD, NULL);
 }
 
 /*ARGSUSED*/