From 66fac03fae3af9dded964b01c89662819dbfc5c2 Mon Sep 17 00:00:00 2001 From: Sebastian Huber Date: Thu, 16 Mar 2017 11:54:29 +0100 Subject: libio: Fix deadlock in location management Perform a context-dependent deferred location release to avoid a deadlock on the file system instance locks, for example during a chdir(). Update #2936. --- cpukit/libcsupport/include/rtems/libio_.h | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'cpukit/libcsupport/include/rtems') diff --git a/cpukit/libcsupport/include/rtems/libio_.h b/cpukit/libcsupport/include/rtems/libio_.h index 0c5e9ed30b..c2fb975bf7 100644 --- a/cpukit/libcsupport/include/rtems/libio_.h +++ b/cpukit/libcsupport/include/rtems/libio_.h @@ -507,11 +507,14 @@ rtems_filesystem_global_location_t *rtems_filesystem_global_location_obtain( * deferred. The next obtain call will do the actual release. * * @param[in] global_loc The global file system location. It must not be NULL. + * @param[in] deferred If true, then do a deferred release, otherwise release + * it immediately. * * @see rtems_filesystem_global_location_obtain(). */ void rtems_filesystem_global_location_release( - rtems_filesystem_global_location_t *global_loc + rtems_filesystem_global_location_t *global_loc, + bool deferred ); void rtems_filesystem_location_detach( -- cgit v1.2.3