diff mbox series

[11/45] xfs: export the geometry of realtime groups to userspace

Message ID 167243878509.731133.10626383770835296737.stgit@magnolia (mailing list archive)
State Superseded, archived
Headers show
Series libxfs: shard the realtime section | expand

Commit Message

Darrick J. Wong Dec. 30, 2022, 10:19 p.m. UTC 
From: Darrick J. Wong <djwong@kernel.org>

Create an ioctl so that the kernel can report the status of realtime
groups to userspace.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
---
 libxfs/util.c        |    7 +++++++
 libxfs/xfs_fs.h      |   16 ++++++++++++++++
 libxfs/xfs_health.h  |    2 ++
 libxfs/xfs_rtgroup.c |   14 ++++++++++++++
 libxfs/xfs_rtgroup.h |    4 ++++
 5 files changed, 43 insertions(+)
diff mbox series

Patch

diff --git a/libxfs/util.c b/libxfs/util.c
index 7b16d30b754..e8397fdc341 100644
--- a/libxfs/util.c
+++ b/libxfs/util.c
@@ -444,6 +444,13 @@  xfs_fs_mark_healthy(
 }
 
 void xfs_ag_geom_health(struct xfs_perag *pag, struct xfs_ag_geometry *ageo) { }
+void
+xfs_rtgroup_geom_health(
+	struct xfs_rtgroup		*rtg,
+	struct xfs_rtgroup_geometry	*rgeo)
+{
+	/* empty */
+}
 void xfs_fs_mark_sick(struct xfs_mount *mp, unsigned int mask) { }
 void xfs_agno_mark_sick(struct xfs_mount *mp, xfs_agnumber_t agno,
 		unsigned int mask) { }
diff --git a/libxfs/xfs_fs.h b/libxfs/xfs_fs.h
index ba90649c54e..e3d87665e4a 100644
--- a/libxfs/xfs_fs.h
+++ b/libxfs/xfs_fs.h
@@ -299,6 +299,21 @@  struct xfs_ag_geometry {
 #define XFS_AG_GEOM_SICK_REFCNTBT (1 << 9)  /* reference counts */
 #define XFS_AG_GEOM_SICK_INODES	(1 << 10) /* bad inodes were seen */
 
+/*
+ * Output for XFS_IOC_RTGROUP_GEOMETRY
+ */
+struct xfs_rtgroup_geometry {
+	uint32_t	rg_number;	/* i/o: rtgroup number */
+	uint32_t	rg_length;	/* o: length in blocks */
+	uint32_t	rg_sick;	/* o: sick things in ag */
+	uint32_t	rg_checked;	/* o: checked metadata in ag */
+	uint32_t	rg_flags;	/* i/o: flags for this ag */
+	uint32_t	rg_pad;		/* o: zero */
+	uint64_t	rg_reserved[13];/* o: zero */
+};
+#define XFS_RTGROUP_GEOM_SICK_SUPER	(1 << 0)  /* superblock */
+#define XFS_RTGROUP_GEOM_SICK_BITMAP	(1 << 1)  /* rtbitmap for this group */
+
 /*
  * Structures for XFS_IOC_FSGROWFSDATA, XFS_IOC_FSGROWFSLOG & XFS_IOC_FSGROWFSRT
  */
@@ -819,6 +834,7 @@  struct xfs_scrub_metadata {
 /*	XFS_IOC_GETFSMAP ------ hoisted 59         */
 #define XFS_IOC_SCRUB_METADATA	_IOWR('X', 60, struct xfs_scrub_metadata)
 #define XFS_IOC_AG_GEOMETRY	_IOWR('X', 61, struct xfs_ag_geometry)
+#define XFS_IOC_RTGROUP_GEOMETRY _IOWR('X', 62, struct xfs_rtgroup_geometry)
 
 /*
  * ioctl commands that replace IRIX syssgi()'s
diff --git a/libxfs/xfs_health.h b/libxfs/xfs_health.h
index 0beb4153a43..44137c4983f 100644
--- a/libxfs/xfs_health.h
+++ b/libxfs/xfs_health.h
@@ -286,6 +286,8 @@  xfs_inode_is_healthy(struct xfs_inode *ip)
 
 void xfs_fsop_geom_health(struct xfs_mount *mp, struct xfs_fsop_geom *geo);
 void xfs_ag_geom_health(struct xfs_perag *pag, struct xfs_ag_geometry *ageo);
+void xfs_rtgroup_geom_health(struct xfs_rtgroup *rtg,
+		struct xfs_rtgroup_geometry *rgeo);
 void xfs_bulkstat_health(struct xfs_inode *ip, struct xfs_bulkstat *bs);
 
 #define xfs_metadata_is_sick(error) \
diff --git a/libxfs/xfs_rtgroup.c b/libxfs/xfs_rtgroup.c
index 86751cb8d31..ebbd0d13a8a 100644
--- a/libxfs/xfs_rtgroup.c
+++ b/libxfs/xfs_rtgroup.c
@@ -529,3 +529,17 @@  xfs_rtgroup_unlock(
 	else if (rtglock_flags & XFS_RTGLOCK_BITMAP_SHARED)
 		xfs_rtbitmap_unlock_shared(rtg->rtg_mount, XFS_RBMLOCK_BITMAP);
 }
+
+/* Retrieve rt group geometry. */
+int
+xfs_rtgroup_get_geometry(
+	struct xfs_rtgroup	*rtg,
+	struct xfs_rtgroup_geometry *rgeo)
+{
+	/* Fill out form. */
+	memset(rgeo, 0, sizeof(*rgeo));
+	rgeo->rg_number = rtg->rtg_rgno;
+	rgeo->rg_length = rtg->rtg_blockcount;
+	xfs_rtgroup_geom_health(rtg, rgeo);
+	return 0;
+}
diff --git a/libxfs/xfs_rtgroup.h b/libxfs/xfs_rtgroup.h
index b1e53af5a65..1fec49c496d 100644
--- a/libxfs/xfs_rtgroup.h
+++ b/libxfs/xfs_rtgroup.h
@@ -222,6 +222,9 @@  int xfs_rtgroup_update_secondary_sbs(struct xfs_mount *mp);
 void xfs_rtgroup_lock(struct xfs_trans *tp, struct xfs_rtgroup *rtg,
 		unsigned int rtglock_flags);
 void xfs_rtgroup_unlock(struct xfs_rtgroup *rtg, unsigned int rtglock_flags);
+
+int xfs_rtgroup_get_geometry(struct xfs_rtgroup *rtg,
+		struct xfs_rtgroup_geometry *rgeo);
 #else
 # define xfs_rtgroup_block_count(mp, rgno)	(0)
 # define xfs_rtgroup_update_super(bp, sb_bp)	((void)0)
@@ -229,6 +232,7 @@  void xfs_rtgroup_unlock(struct xfs_rtgroup *rtg, unsigned int rtglock_flags);
 # define xfs_rtgroup_update_secondary_sbs(mp)	(0)
 # define xfs_rtgroup_lock(tp, rtg, gf)		((void)0)
 # define xfs_rtgroup_unlock(rtg, gf)		((void)0)
+# define xfs_rtgroup_get_geometry(rtg, rgeo)	(-EOPNOTSUPP)
 #endif /* CONFIG_XFS_RT */
 
 #endif /* __LIBXFS_RTGROUP_H */