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[08/21] xfs: add media error reporting ioctl

Message ID 173568778582.2710211.12839545225156178670.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, 11:49 p.m. UTC 
From: Darrick J. Wong <djwong@kernel.org>

Add a new privileged ioctl so that xfs_scrub can report media errors to
the kernel for further processing.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
---
 libxfs/xfs_fs.h |   15 +++++++++++++++
 1 file changed, 15 insertions(+)
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Patch

diff --git a/libxfs/xfs_fs.h b/libxfs/xfs_fs.h
index d7404e6efd866d..32e552d40b1bf5 100644
--- a/libxfs/xfs_fs.h
+++ b/libxfs/xfs_fs.h
@@ -1115,6 +1115,20 @@  struct xfs_health_monitor {
 /* Return events in JSON format */
 #define XFS_HEALTH_MONITOR_FMT_JSON	(1)
 
+struct xfs_media_error {
+	__u64	flags;		/* flags */
+	__u64	daddr;		/* disk address of range */
+	__u64	bbcount;	/* length, in 512b blocks */
+	__u64	pad;		/* zero */
+};
+
+#define XFS_MEDIA_ERROR_DATADEV	(1)	/* data device */
+#define XFS_MEDIA_ERROR_LOGDEV	(2)	/* external log device */
+#define XFS_MEDIA_ERROR_RTDEV	(3)	/* realtime device */
+
+/* bottom byte of flags is the device code */
+#define XFS_MEDIA_ERROR_DEVMASK	(0xFF)
+
 /*
  * ioctl commands that are used by Linux filesystems
  */
@@ -1157,6 +1171,7 @@  struct xfs_health_monitor {
 #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)
+#define XFS_IOC_MEDIA_ERROR	_IOW ('X', 69, struct xfs_media_error)
 
 /*
  * ioctl commands that replace IRIX syssgi()'s