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-rw-r--r--doc/hurd.texi4
1 files changed, 3 insertions, 1 deletions
diff --git a/doc/hurd.texi b/doc/hurd.texi
index 525bfa78..2bcf561b 100644
--- a/doc/hurd.texi
+++ b/doc/hurd.texi
@@ -2284,7 +2284,9 @@ and functions:
@deftypevarx {extern int} trivfs_fsid
These variables are returned in the @var{st_fstype} and @var{st_fsid}
fields of @code{struct stat}. @var{trivfs_fstype} should be chosen
-from the @code{FSTYPE_*} constants found in @code{<hurd/hurd_types.h>}.
+from the @code{FSTYPE_*} constants found in
+@code{<hurd/hurd_types.h>}. If @code{trivfs_fsid} is zero, trivfs
+will use the pid of the translator instead.
@end deftypevar
@deftypevar {extern int} trivfs_allow_open