6893087 removing and inserting a faulted vdev clears faulted state

6893088 new ereports need to be generated when clearing a vdev
6893090 clearing a vdev should automatically detach spare
6893099 zpool_clear_label() would be useful

1 files changed, 30 insertions, 0 deletions

diff --git a/usr/src/lib/libzfs/common/libzfs_import.c b/usr/src/lib/libzfs/common/libzfs_import.c
index f5793390ea..8705361b6c 100644
--- a/usr/src/lib/libzfs/common/libzfs_import.c
+++ b/usr/src/lib/libzfs/common/libzfs_import.c
@@ -898,6 +898,36 @@ zpool_read_label(int fd, nvlist_t **config)
 }
 
 /*
+ * Given a file descriptor, clear (zero) the label information.  This function
+ * is currently only used in the appliance stack as part of the ZFS sysevent
+ * module.
+ */
+int
+zpool_clear_label(int fd)
+{
+	struct stat64 statbuf;
+	int l;
+	vdev_label_t *label;
+	uint64_t size;
+
+	if (fstat64(fd, &statbuf) == -1)
+		return (0);
+	size = P2ALIGN_TYPED(statbuf.st_size, sizeof (vdev_label_t), uint64_t);
+
+	if ((label = calloc(sizeof (vdev_label_t), 1)) == NULL)
+		return (-1);
+
+	for (l = 0; l < VDEV_LABELS; l++) {
+		if (pwrite64(fd, label, sizeof (vdev_label_t),
+		    label_offset(size, l)) != sizeof (vdev_label_t))
+			return (-1);
+	}
+
+	free(label);
+	return (0);
+}
+
+/*
  * Given a list of directories to search, find all pools stored on disk.  This
  * includes partial pools which are not available to import.  If no args are
  * given (argc is 0), then the default directory (/dev/dsk) is searched.