xfs: add parent pointer ioctls

This patch adds a pair of new file ioctls to retrieve the parent pointer
of a given inode.  They both return the same results, but one operates
on the file descriptor passed to ioctl() whereas the other allows the
caller to specify a file handle for which the caller wants results.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>

11 files changed, 522 insertions, 2 deletions

diff --git a/fs/xfs/libxfs/xfs_fs.h b/fs/xfs/libxfs/xfs_fs.h
index 97384ab95de4..ea654df0505f 100644
--- a/fs/xfs/libxfs/xfs_fs.h
+++ b/fs/xfs/libxfs/xfs_fs.h
@@ -816,6 +816,78 @@ struct xfs_exchange_range {
 					 XFS_EXCHANGE_RANGE_DRY_RUN | \
 					 XFS_EXCHANGE_RANGE_FILE1_WRITTEN)
 
+/* Iterating parent pointers of files. */
+
+/* target was the root directory */
+#define XFS_GETPARENTS_OFLAG_ROOT	(1U << 0)
+
+/* Cursor is done iterating pptrs */
+#define XFS_GETPARENTS_OFLAG_DONE	(1U << 1)
+
+#define XFS_GETPARENTS_OFLAGS_ALL	(XFS_GETPARENTS_OFLAG_ROOT | \
+					 XFS_GETPARENTS_OFLAG_DONE)
+
+#define XFS_GETPARENTS_IFLAGS_ALL	(0)
+
+struct xfs_getparents_rec {
+	struct xfs_handle	gpr_parent; /* Handle to parent */
+	__u32			gpr_reclen; /* Length of entire record */
+	__u32			gpr_reserved; /* zero */
+	char			gpr_name[]; /* Null-terminated filename */
+};
+
+/* Iterate through this file's directory parent pointers */
+struct xfs_getparents {
+	/*
+	 * Structure to track progress in iterating the parent pointers.
+	 * Must be initialized to zeroes before the first ioctl call, and
+	 * not touched by callers after that.
+	 */
+	struct xfs_attrlist_cursor	gp_cursor;
+
+	/* Input flags: XFS_GETPARENTS_IFLAG* */
+	__u16				gp_iflags;
+
+	/* Output flags: XFS_GETPARENTS_OFLAG* */
+	__u16				gp_oflags;
+
+	/* Size of the gp_buffer in bytes */
+	__u32				gp_bufsize;
+
+	/* Must be set to zero */
+	__u64				gp_reserved;
+
+	/* Pointer to a buffer in which to place xfs_getparents_rec */
+	__u64				gp_buffer;
+};
+
+static inline struct xfs_getparents_rec *
+xfs_getparents_first_rec(struct xfs_getparents *gp)
+{
+	return (struct xfs_getparents_rec *)(uintptr_t)gp->gp_buffer;
+}
+
+static inline struct xfs_getparents_rec *
+xfs_getparents_next_rec(struct xfs_getparents *gp,
+			struct xfs_getparents_rec *gpr)
+{
+	void *next = ((void *)gpr + gpr->gpr_reclen);
+	void *end = (void *)(uintptr_t)(gp->gp_buffer + gp->gp_bufsize);
+
+	if (next >= end)
+		return NULL;
+
+	return next;
+}
+
+/* Iterate through this file handle's directory parent pointers. */
+struct xfs_getparents_by_handle {
+	/* Handle to file whose parents we want. */
+	struct xfs_handle		gph_handle;
+
+	struct xfs_getparents		gph_request;
+};
+
 /*
  * ioctl commands that are used by Linux filesystems
  */
@@ -851,6 +923,8 @@ struct xfs_exchange_range {
 /*	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_GETPARENTS	_IOWR('X', 62, struct xfs_getparents)
+#define XFS_IOC_GETPARENTS_BY_HANDLE _IOWR('X', 63, struct xfs_getparents_by_handle)
 
 /*
  * ioctl commands that replace IRIX syssgi()'s
diff --git a/fs/xfs/libxfs/xfs_ondisk.h b/fs/xfs/libxfs/xfs_ondisk.h
index 25952ef584ee..e8cdd77d03fa 100644
--- a/fs/xfs/libxfs/xfs_ondisk.h
+++ b/fs/xfs/libxfs/xfs_ondisk.h
@@ -156,6 +156,11 @@ xfs_check_ondisk_structs(void)
 	XFS_CHECK_OFFSET(struct xfs_efi_log_format_32, efi_extents,	16);
 	XFS_CHECK_OFFSET(struct xfs_efi_log_format_64, efi_extents,	16);
 
+	/* parent pointer ioctls */
+	XFS_CHECK_STRUCT_SIZE(struct xfs_getparents_rec,	32);
+	XFS_CHECK_STRUCT_SIZE(struct xfs_getparents,		40);
+	XFS_CHECK_STRUCT_SIZE(struct xfs_getparents_by_handle,	64);
+
 	/*
 	 * The v5 superblock format extended several v4 header structures with
 	 * additional data. While new fields are only accessible on v5
diff --git a/fs/xfs/libxfs/xfs_parent.c b/fs/xfs/libxfs/xfs_parent.c
index fdf643bfde4d..504de1ef3387 100644
--- a/fs/xfs/libxfs/xfs_parent.c
+++ b/fs/xfs/libxfs/xfs_parent.c
@@ -257,3 +257,37 @@ xfs_parent_replacename(
 	xfs_attr_defer_add(&ppargs->args, XFS_ATTR_DEFER_REPLACE);
 	return 0;
 }
+
+/*
+ * Extract parent pointer information from any parent pointer xattr into
+ * @parent_ino/gen.  The last two parameters can be NULL pointers.
+ *
+ * Returns 0 if this is not a parent pointer xattr at all; or -EFSCORRUPTED for
+ * garbage.
+ */
+int
+xfs_parent_from_attr(
+	struct xfs_mount	*mp,
+	unsigned int		attr_flags,
+	const unsigned char	*name,
+	unsigned int		namelen,
+	const void		*value,
+	unsigned int		valuelen,
+	xfs_ino_t		*parent_ino,
+	uint32_t		*parent_gen)
+{
+	const struct xfs_parent_rec	*rec = value;
+
+	ASSERT(attr_flags & XFS_ATTR_PARENT);
+
+	if (!xfs_parent_namecheck(attr_flags, name, namelen))
+		return -EFSCORRUPTED;
+	if (!xfs_parent_valuecheck(mp, value, valuelen))
+		return -EFSCORRUPTED;
+
+	if (parent_ino)
+		*parent_ino = be64_to_cpu(rec->p_ino);
+	if (parent_gen)
+		*parent_gen = be32_to_cpu(rec->p_gen);
+	return 0;
+}
diff --git a/fs/xfs/libxfs/xfs_parent.h b/fs/xfs/libxfs/xfs_parent.h
index 768633b31367..d7ab09e738ad 100644
--- a/fs/xfs/libxfs/xfs_parent.h
+++ b/fs/xfs/libxfs/xfs_parent.h
@@ -91,4 +91,9 @@ int xfs_parent_replacename(struct xfs_trans *tp,
 		struct xfs_inode *new_dp, const struct xfs_name *new_name,
 		struct xfs_inode *child);
 
+int xfs_parent_from_attr(struct xfs_mount *mp, unsigned int attr_flags,
+		const unsigned char *name, unsigned int namelen,
+		const void *value, unsigned int valuelen,
+		xfs_ino_t *parent_ino, uint32_t *parent_gen);
+
 #endif /* __XFS_PARENT_H__ */
diff --git a/fs/xfs/xfs_export.c b/fs/xfs/xfs_export.c
index 4b03221351c0..201489d3de08 100644
--- a/fs/xfs/xfs_export.c
+++ b/fs/xfs/xfs_export.c
@@ -102,7 +102,7 @@ xfs_fs_encode_fh(
 	return fileid_type;
 }
 
-STATIC struct inode *
+struct inode *
 xfs_nfs_get_inode(
 	struct super_block	*sb,
 	u64			ino,
diff --git a/fs/xfs/xfs_export.h b/fs/xfs/xfs_export.h
index 64471a3ddb04..3cd85e8901a5 100644
--- a/fs/xfs/xfs_export.h
+++ b/fs/xfs/xfs_export.h
@@ -57,4 +57,6 @@ struct xfs_fid64 {
 /* This flag goes on the wire.  Don't play with it. */
 #define XFS_FILEID_TYPE_64FLAG	0x80	/* NFS fileid has 64bit inodes */
 
+struct inode *xfs_nfs_get_inode(struct super_block *sb, u64 ino, u32 gen);
+
 #endif	/* __XFS_EXPORT_H__ */
diff --git a/fs/xfs/xfs_handle.c b/fs/xfs/xfs_handle.c
index b9f4d9860682..c8785ed59543 100644
--- a/fs/xfs/xfs_handle.c
+++ b/fs/xfs/xfs_handle.c
@@ -1,6 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (c) 2000-2005 Silicon Graphics, Inc.
+ * Copyright (c) 2022-2024 Oracle.
  * All rights reserved.
  */
 #include "xfs.h"
@@ -178,6 +179,30 @@ xfs_khandle_to_dentry(
 			xfs_handle_acceptable, NULL);
 }
 
+/* Convert handle already copied to kernel space into an xfs_inode. */
+static struct xfs_inode *
+xfs_khandle_to_inode(
+	struct file		*file,
+	struct xfs_handle	*handle)
+{
+	struct xfs_inode	*ip = XFS_I(file_inode(file));
+	struct xfs_mount	*mp = ip->i_mount;
+	struct inode		*inode;
+
+	if (!S_ISDIR(VFS_I(ip)->i_mode))
+		return ERR_PTR(-ENOTDIR);
+
+	if (handle->ha_fid.fid_len != xfs_filehandle_fid_len())
+		return ERR_PTR(-EINVAL);
+
+	inode = xfs_nfs_get_inode(mp->m_super, handle->ha_fid.fid_ino,
+			handle->ha_fid.fid_gen);
+	if (IS_ERR(inode))
+		return ERR_CAST(inode);
+
+	return XFS_I(inode);
+}
+
 /*
  * Convert userspace handle data into a dentry.
  */
@@ -652,3 +677,276 @@ xfs_attrmulti_by_handle(
 	dput(dentry);
 	return error;
 }
+
+struct xfs_getparents_ctx {
+	struct xfs_attr_list_context	context;
+	struct xfs_getparents_by_handle	gph;
+
+	/* File to target */
+	struct xfs_inode		*ip;
+
+	/* Internal buffer where we format records */
+	void				*krecords;
+
+	/* Last record filled out */
+	struct xfs_getparents_rec	*lastrec;
+
+	unsigned int			count;
+};
+
+static inline unsigned int
+xfs_getparents_rec_sizeof(
+	unsigned int		namelen)
+{
+	return round_up(sizeof(struct xfs_getparents_rec) + namelen + 1,
+			sizeof(uint64_t));
+}
+
+static void
+xfs_getparents_put_listent(
+	struct xfs_attr_list_context	*context,
+	int				flags,
+	unsigned char			*name,
+	int				namelen,
+	void				*value,
+	int				valuelen)
+{
+	struct xfs_getparents_ctx	*gpx =
+		container_of(context, struct xfs_getparents_ctx, context);
+	struct xfs_inode		*ip = context->dp;
+	struct xfs_mount		*mp = ip->i_mount;
+	struct xfs_getparents		*gp = &gpx->gph.gph_request;
+	struct xfs_getparents_rec	*gpr = gpx->krecords + context->firstu;
+	unsigned short			reclen =
+		xfs_getparents_rec_sizeof(namelen);
+	xfs_ino_t			ino;
+	uint32_t			gen;
+	int				error;
+
+	if (!(flags & XFS_ATTR_PARENT))
+		return;
+
+	error = xfs_parent_from_attr(mp, flags, name, namelen, value, valuelen,
+			&ino, &gen);
+	if (error) {
+		xfs_inode_mark_sick(ip, XFS_SICK_INO_PARENT);
+		context->seen_enough = -EFSCORRUPTED;
+		return;
+	}
+
+	/*
+	 * We found a parent pointer, but we've filled up the buffer.  Signal
+	 * to the caller that we did /not/ reach the end of the parent pointer
+	 * recordset.
+	 */
+	if (context->firstu > context->bufsize - reclen) {
+		context->seen_enough = 1;
+		return;
+	}
+
+	/* Format the parent pointer directly into the caller buffer. */
+	gpr->gpr_reclen = reclen;
+	xfs_filehandle_init(mp, ino, gen, &gpr->gpr_parent);
+	memcpy(gpr->gpr_name, name, namelen);
+	gpr->gpr_name[namelen] = 0;
+
+	trace_xfs_getparents_put_listent(ip, gp, context, gpr);
+
+	context->firstu += reclen;
+	gpx->count++;
+	gpx->lastrec = gpr;
+}
+
+/* Expand the last record to fill the rest of the caller's buffer. */
+static inline void
+xfs_getparents_expand_lastrec(
+	struct xfs_getparents_ctx	*gpx)
+{
+	struct xfs_getparents		*gp = &gpx->gph.gph_request;
+	struct xfs_getparents_rec	*gpr = gpx->lastrec;
+
+	if (!gpx->lastrec)
+		gpr = gpx->krecords;
+
+	gpr->gpr_reclen = gp->gp_bufsize - ((void *)gpr - gpx->krecords);
+
+	trace_xfs_getparents_expand_lastrec(gpx->ip, gp, &gpx->context, gpr);
+}
+
+static inline void __user *u64_to_uptr(u64 val)
+{
+	return (void __user *)(uintptr_t)val;
+}
+
+/* Retrieve the parent pointers for a given inode. */
+STATIC int
+xfs_getparents(
+	struct xfs_getparents_ctx	*gpx)
+{
+	struct xfs_getparents		*gp = &gpx->gph.gph_request;
+	struct xfs_inode		*ip = gpx->ip;
+	struct xfs_mount		*mp = ip->i_mount;
+	size_t				bufsize;
+	int				error;
+
+	/* Check size of buffer requested by user */
+	if (gp->gp_bufsize > XFS_XATTR_LIST_MAX)
+		return -ENOMEM;
+	if (gp->gp_bufsize < xfs_getparents_rec_sizeof(1))
+		return -EINVAL;
+
+	if (gp->gp_iflags & ~XFS_GETPARENTS_IFLAGS_ALL)
+		return -EINVAL;
+	if (gp->gp_reserved)
+		return -EINVAL;
+
+	bufsize = round_down(gp->gp_bufsize, sizeof(uint64_t));
+	gpx->krecords = kvzalloc(bufsize, GFP_KERNEL);
+	if (!gpx->krecords) {
+		bufsize = min(bufsize, PAGE_SIZE);
+		gpx->krecords = kvzalloc(bufsize, GFP_KERNEL);
+		if (!gpx->krecords)
+			return -ENOMEM;
+	}
+
+	gpx->context.dp = ip;
+	gpx->context.resynch = 1;
+	gpx->context.put_listent = xfs_getparents_put_listent;
+	gpx->context.bufsize = bufsize;
+	/* firstu is used to track the bytes filled in the buffer */
+	gpx->context.firstu = 0;
+
+	/* Copy the cursor provided by caller */
+	memcpy(&gpx->context.cursor, &gp->gp_cursor,
+			sizeof(struct xfs_attrlist_cursor));
+	gpx->count = 0;
+	gp->gp_oflags = 0;
+
+	trace_xfs_getparents_begin(ip, gp, &gpx->context.cursor);
+
+	error = xfs_attr_list(&gpx->context);
+	if (error)
+		goto out_free_buf;
+	if (gpx->context.seen_enough < 0) {
+		error = gpx->context.seen_enough;
+		goto out_free_buf;
+	}
+	xfs_getparents_expand_lastrec(gpx);
+
+	/* Update the caller with the current cursor position */
+	memcpy(&gp->gp_cursor, &gpx->context.cursor,
+			sizeof(struct xfs_attrlist_cursor));
+
+	/* Is this the root directory? */
+	if (ip->i_ino == mp->m_sb.sb_rootino)
+		gp->gp_oflags |= XFS_GETPARENTS_OFLAG_ROOT;
+
+	if (gpx->context.seen_enough == 0) {
+		/*
+		 * If we did not run out of buffer space, then we reached the
+		 * end of the pptr recordset, so set the DONE flag.
+		 */
+		gp->gp_oflags |= XFS_GETPARENTS_OFLAG_DONE;
+	} else if (gpx->count == 0) {
+		/*
+		 * If we ran out of buffer space before copying any parent
+		 * pointers at all, the caller's buffer was too short.  Tell
+		 * userspace that, erm, the message is too long.
+		 */
+		error = -EMSGSIZE;
+		goto out_free_buf;
+	}
+
+	trace_xfs_getparents_end(ip, gp, &gpx->context.cursor);
+
+	ASSERT(gpx->context.firstu <= gpx->gph.gph_request.gp_bufsize);
+
+	/* Copy the records to userspace. */
+	if (copy_to_user(u64_to_uptr(gpx->gph.gph_request.gp_buffer),
+				gpx->krecords, gpx->context.firstu))
+		error = -EFAULT;
+
+out_free_buf:
+	kvfree(gpx->krecords);
+	gpx->krecords = NULL;
+	return error;
+}
+
+/* Retrieve the parents of this file and pass them back to userspace. */
+int
+xfs_ioc_getparents(
+	struct file			*file,
+	struct xfs_getparents __user	*ureq)
+{
+	struct xfs_getparents_ctx	gpx = {
+		.ip			= XFS_I(file_inode(file)),
+	};
+	struct xfs_getparents		*kreq = &gpx.gph.gph_request;
+	struct xfs_mount		*mp = gpx.ip->i_mount;
+	int				error;
+
+	if (!capable(CAP_SYS_ADMIN))
+		return -EPERM;
+	if (!xfs_has_parent(mp))
+		return -EOPNOTSUPP;
+	if (copy_from_user(kreq, ureq, sizeof(*kreq)))
+		return -EFAULT;
+
+	error = xfs_getparents(&gpx);
+	if (error)
+		return error;
+
+	if (copy_to_user(ureq, kreq, sizeof(*kreq)))
+		return -EFAULT;
+
+	return 0;
+}
+
+/* Retrieve the parents of this file handle and pass them back to userspace. */
+int
+xfs_ioc_getparents_by_handle(
+	struct file			*file,
+	struct xfs_getparents_by_handle __user	*ureq)
+{
+	struct xfs_getparents_ctx	gpx = { };
+	struct xfs_inode		*ip = XFS_I(file_inode(file));
+	struct xfs_mount		*mp = ip->i_mount;
+	struct xfs_getparents_by_handle	*kreq = &gpx.gph;
+	struct xfs_handle		*handle = &kreq->gph_handle;
+	int				error;
+
+	if (!capable(CAP_SYS_ADMIN))
+		return -EPERM;
+	if (!xfs_has_parent(mp))
+		return -EOPNOTSUPP;
+	if (copy_from_user(kreq, ureq, sizeof(*kreq)))
+		return -EFAULT;
+
+	/*
+	 * We don't use exportfs_decode_fh because it does too much work here.
+	 * If the handle refers to a directory, the exportfs code will walk
+	 * upwards through the directory tree to connect the dentries to the
+	 * root directory dentry.  For GETPARENTS we don't care about that
+	 * because we're not actually going to open a file descriptor; we only
+	 * want to open an inode and read its parent pointers.
+	 *
+	 * Note that xfs_scrub uses GETPARENTS to log that it will try to fix a
+	 * corrupted file's metadata.  For this usecase we would really rather
+	 * userspace single-step the path reconstruction to avoid loops or
+	 * other strange things if the directory tree is corrupt.
+	 */
+	gpx.ip = xfs_khandle_to_inode(file, handle);
+	if (IS_ERR(gpx.ip))
+		return PTR_ERR(gpx.ip);
+
+	error = xfs_getparents(&gpx);
+	if (error)
+		goto out_rele;
+
+	if (copy_to_user(ureq, kreq, sizeof(*kreq)))
+		error = -EFAULT;
+
+out_rele:
+	xfs_irele(gpx.ip);
+	return error;
+}
diff --git a/fs/xfs/xfs_handle.h b/fs/xfs/xfs_handle.h
index e39eaf4689da..6799a86d8565 100644
--- a/fs/xfs/xfs_handle.h
+++ b/fs/xfs/xfs_handle.h
@@ -1,6 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (c) 2000-2005 Silicon Graphics, Inc.
+ * Copyright (c) 2022-2024 Oracle.
  * All rights reserved.
  */
 #ifndef	__XFS_HANDLE_H__
@@ -25,4 +26,8 @@ int xfs_ioc_attr_list(struct xfs_inode *dp, void __user *ubuf,
 struct dentry *xfs_handle_to_dentry(struct file *parfilp, void __user *uhandle,
 		u32 hlen);
 
+int xfs_ioc_getparents(struct file *file, struct xfs_getparents __user *arg);
+int xfs_ioc_getparents_by_handle(struct file *file,
+		struct xfs_getparents_by_handle __user *arg);
+
 #endif	/* __XFS_HANDLE_H__ */
diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
index ed05fcd6261d..0e97070abe80 100644
--- a/fs/xfs/xfs_ioctl.c
+++ b/fs/xfs/xfs_ioctl.c
@@ -35,6 +35,7 @@
 #include "xfs_health.h"
 #include "xfs_reflink.h"
 #include "xfs_ioctl.h"
+#include "xfs_xattr.h"
 #include "xfs_rtbitmap.h"
 #include "xfs_file.h"
 #include "xfs_exchrange.h"
@@ -1424,7 +1425,10 @@ xfs_file_ioctl(
 
 	case XFS_IOC_FSGETXATTRA:
 		return xfs_ioc_fsgetxattra(ip, arg);
-
+	case XFS_IOC_GETPARENTS:
+		return xfs_ioc_getparents(filp, arg);
+	case XFS_IOC_GETPARENTS_BY_HANDLE:
+		return xfs_ioc_getparents_by_handle(filp, arg);
 	case XFS_IOC_GETBMAP:
 	case XFS_IOC_GETBMAPA:
 	case XFS_IOC_GETBMAPX:
diff --git a/fs/xfs/xfs_trace.c b/fs/xfs/xfs_trace.c
index cf92a3bd56c7..9c7fbaae2717 100644
--- a/fs/xfs/xfs_trace.c
+++ b/fs/xfs/xfs_trace.c
@@ -41,6 +41,7 @@
 #include "xfs_bmap.h"
 #include "xfs_exchmaps.h"
 #include "xfs_exchrange.h"
+#include "xfs_parent.h"
 
 /*
  * We include this last to have the helpers above available for the trace
diff --git a/fs/xfs/xfs_trace.h b/fs/xfs/xfs_trace.h
index 5621db48e763..05cb59bd0b80 100644
--- a/fs/xfs/xfs_trace.h
+++ b/fs/xfs/xfs_trace.h
@@ -87,6 +87,9 @@ struct xfs_bmap_intent;
 struct xfs_exchmaps_intent;
 struct xfs_exchmaps_req;
 struct xfs_exchrange;
+struct xfs_getparents;
+struct xfs_parent_irec;
+struct xfs_attrlist_cursor_kern;
 
 #define XFS_ATTR_FILTER_FLAGS \
 	{ XFS_ATTR_ROOT,	"ROOT" }, \
@@ -5096,6 +5099,95 @@ TRACE_EVENT(xfs_exchmaps_delta_nextents,
 		  __entry->d_nexts1, __entry->d_nexts2)
 );
 
+DECLARE_EVENT_CLASS(xfs_getparents_rec_class,
+	TP_PROTO(struct xfs_inode *ip, const struct xfs_getparents *ppi,
+		 const struct xfs_attr_list_context *context,
+	         const struct xfs_getparents_rec *pptr),
+	TP_ARGS(ip, ppi, context, pptr),
+	TP_STRUCT__entry(
+		__field(dev_t, dev)
+		__field(xfs_ino_t, ino)
+		__field(unsigned int, firstu)
+		__field(unsigned short, reclen)
+		__field(unsigned int, bufsize)
+		__field(xfs_ino_t, parent_ino)
+		__field(unsigned int, parent_gen)
+		__string(name, pptr->gpr_name)
+	),
+	TP_fast_assign(
+		__entry->dev = ip->i_mount->m_super->s_dev;
+		__entry->ino = ip->i_ino;
+		__entry->firstu = context->firstu;
+		__entry->reclen = pptr->gpr_reclen;
+		__entry->bufsize = ppi->gp_bufsize;
+		__entry->parent_ino = pptr->gpr_parent.ha_fid.fid_ino;
+		__entry->parent_gen = pptr->gpr_parent.ha_fid.fid_gen;
+		__assign_str(name, pptr->gpr_name);
+	),
+	TP_printk("dev %d:%d ino 0x%llx firstu %u reclen %u bufsize %u parent_ino 0x%llx parent_gen 0x%x name '%s'",
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
+		  __entry->ino,
+		  __entry->firstu,
+		  __entry->reclen,
+		  __entry->bufsize,
+		  __entry->parent_ino,
+		  __entry->parent_gen,
+		  __get_str(name))
+)
+#define DEFINE_XFS_GETPARENTS_REC_EVENT(name) \
+DEFINE_EVENT(xfs_getparents_rec_class, name, \
+	TP_PROTO(struct xfs_inode *ip, const struct xfs_getparents *ppi, \
+		 const struct xfs_attr_list_context *context, \
+	         const struct xfs_getparents_rec *pptr), \
+	TP_ARGS(ip, ppi, context, pptr))
+DEFINE_XFS_GETPARENTS_REC_EVENT(xfs_getparents_put_listent);
+DEFINE_XFS_GETPARENTS_REC_EVENT(xfs_getparents_expand_lastrec);
+
+DECLARE_EVENT_CLASS(xfs_getparents_class,
+	TP_PROTO(struct xfs_inode *ip, const struct xfs_getparents *ppi,
+		 const struct xfs_attrlist_cursor_kern *cur),
+	TP_ARGS(ip, ppi, cur),
+	TP_STRUCT__entry(
+		__field(dev_t, dev)
+		__field(xfs_ino_t, ino)
+		__field(unsigned short, iflags)
+		__field(unsigned short, oflags)
+		__field(unsigned int, bufsize)
+		__field(unsigned int, hashval)
+		__field(unsigned int, blkno)
+		__field(unsigned int, offset)
+		__field(int, initted)
+	),
+	TP_fast_assign(
+		__entry->dev = ip->i_mount->m_super->s_dev;
+		__entry->ino = ip->i_ino;
+		__entry->iflags = ppi->gp_iflags;
+		__entry->oflags = ppi->gp_oflags;
+		__entry->bufsize = ppi->gp_bufsize;
+		__entry->hashval = cur->hashval;
+		__entry->blkno = cur->blkno;
+		__entry->offset = cur->offset;
+		__entry->initted = cur->initted;
+	),
+	TP_printk("dev %d:%d ino 0x%llx iflags 0x%x oflags 0x%x bufsize %u cur_init? %d hashval 0x%x blkno %u offset %u",
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
+		  __entry->ino,
+		  __entry->iflags,
+		  __entry->oflags,
+		  __entry->bufsize,
+		  __entry->initted,
+		  __entry->hashval,
+		  __entry->blkno,
+		  __entry->offset)
+)
+#define DEFINE_XFS_GETPARENTS_EVENT(name) \
+DEFINE_EVENT(xfs_getparents_class, name, \
+	TP_PROTO(struct xfs_inode *ip, const struct xfs_getparents *ppi, \
+		 const struct xfs_attrlist_cursor_kern *cur), \
+	TP_ARGS(ip, ppi, cur))
+DEFINE_XFS_GETPARENTS_EVENT(xfs_getparents_begin);
+DEFINE_XFS_GETPARENTS_EVENT(xfs_getparents_end);
+
 #endif /* _TRACE_XFS_H */
 
 #undef TRACE_INCLUDE_PATH