[01/10] xfs: attach rtgroup objects to btree cursors

Commit Message

Darrick J. Wong Dec. 31, 2023, 9:29 p.m. UTC

From: Darrick J. Wong <[e-mail]>

Make it so that we can attach realtime group objects to btree cursors.
This will be crucial for enabling rmap btrees in realtime groups.

Signed-off-by: Darrick J. Wong <[e-mail]>
---
 fs/xfs/libxfs/xfs_btree.c |    4 ++++
 fs/xfs/libxfs/xfs_btree.h |    2 ++
 2 files changed, 6 insertions(+)

Patch

diff --git a/fs/xfs/libxfs/xfs_btree.c b/fs/xfs/libxfs/xfs_btree.c
index ddbe2d55a8077..5b4a2c6a3f2ac 100644
--- a/fs/xfs/libxfs/xfs_btree.c
+++ b/fs/xfs/libxfs/xfs_btree.c
@@ -31,6 +31,7 @@ 
 #include "scrub/xfile.h"
 #include "scrub/xfbtree.h"
 #include "xfs_btree_mem.h"
+#include "xfs_rtgroup.h"
 
 /*
  * Btree magic numbers.
@@ -476,6 +477,9 @@  xfs_btree_del_cursor(
 	       xfs_is_shutdown(cur->bc_mp) || error != 0);
 	if (unlikely(cur->bc_flags & XFS_BTREE_STAGING))
 		kmem_free(cur->bc_ops);
+	if ((cur->bc_flags & XFS_BTREE_ROOT_IN_INODE) &&
+	    !(cur->bc_flags & XFS_BTREE_IN_XFILE) && cur->bc_ino.rtg)
+		xfs_rtgroup_put(cur->bc_ino.rtg);
 	if (!(cur->bc_flags & XFS_BTREE_LONG_PTRS) &&
 	    !(cur->bc_flags & XFS_BTREE_IN_XFILE) && cur->bc_ag.pag)
 		xfs_perag_put(cur->bc_ag.pag);
diff --git a/fs/xfs/libxfs/xfs_btree.h b/fs/xfs/libxfs/xfs_btree.h
index bb6c2feecea7d..ce0bc5dfffe1c 100644
--- a/fs/xfs/libxfs/xfs_btree.h
+++ b/fs/xfs/libxfs/xfs_btree.h
@@ -12,6 +12,7 @@  struct xfs_mount;
 struct xfs_trans;
 struct xfs_ifork;
 struct xfs_perag;
+struct xfs_rtgroup;
 
 /*
  * Generic key, ptr and record wrapper structures.
@@ -247,6 +248,7 @@  struct xfs_btree_cur_ag {
 /* Btree-in-inode cursor information */
 struct xfs_btree_cur_ino {
 	struct xfs_inode		*ip;
+	struct xfs_rtgroup		*rtg;	/* if realtime metadata */
 	struct xbtree_ifakeroot		*ifake;	/* for staging cursor */
 	int				allocated;
 	short				forksize;