diff mbox series

[02/21] xfs: create a special file to pass filesystem health to userspace

Message ID 173568778490.2710211.13224859037235411069.stgit@frogsfrogsfrogs (mailing list archive)
State New
Headers show
Series [01/21] xfs: create hooks for monitoring health updates | expand

Commit Message

Darrick J. Wong Dec. 31, 2024, 11:48 p.m. UTC 
From: Darrick J. Wong <djwong@kernel.org>

Create an ioctl that installs a file descriptor backed by an anon_inode
file that will convey filesystem health events to userspace.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
---
 libxfs/xfs_fs.h |    8 ++++++++
 1 file changed, 8 insertions(+)
diff mbox series

Patch

diff --git a/libxfs/xfs_fs.h b/libxfs/xfs_fs.h
index f4128dbdf3b9a2..d1a81b02a1a3f3 100644
--- a/libxfs/xfs_fs.h
+++ b/libxfs/xfs_fs.h
@@ -1100,6 +1100,13 @@  struct xfs_map_freesp {
 	__u64	pad;		/* must be zero */
 };
 
+struct xfs_health_monitor {
+	__u64	flags;		/* flags */
+	__u8	format;		/* output format */
+	__u8	pad1[7];	/* zeroes */
+	__u64	pad2[2];	/* zeroes */
+};
+
 /*
  * ioctl commands that are used by Linux filesystems
  */
@@ -1141,6 +1148,7 @@  struct xfs_map_freesp {
 #define XFS_IOC_RTGROUP_GEOMETRY _IOWR('X', 65, struct xfs_rtgroup_geometry)
 #define XFS_IOC_GETFSREFCOUNTS	_IOWR('X', 66, struct xfs_getfsrefs_head)
 #define XFS_IOC_MAP_FREESP	_IOW ('X', 67, struct xfs_map_freesp)
+#define XFS_IOC_HEALTH_MONITOR	_IOW ('X', 68, struct xfs_health_monitor)
 
 /*
  * ioctl commands that replace IRIX syssgi()'s