.BR "#include <linux/fs.h>" " /* Definition of " "struct pm_scan_arg" ,
.BR " struct page_region" ", and " PAGE_IS_* " constants */"
.B #include <sys/ioctl.h>
-.PP
+.P
.BI "int ioctl(int " pagemap_fd ", PAGEMAP_SCAN, struct pm_scan_arg *" arg );
.fi
.SH DESCRIPTION
The information is returned with
.B PAGE_SIZE
granularity.
-.PP
+.P
To start tracking the written state (flag) of a page or range of memory,
the
.B UFFD_FEATURE_WP_ASYNC