LU-9859 libcfs: make signal-blocking functions inline

[fs/lustre-release.git] / libcfs / include / libcfs / libcfs.h

diff --git a/libcfs/include/libcfs/libcfs.h b/libcfs/include/libcfs/libcfs.h
index 80dd9d2..20ddfa2 100644 (file)
--- a/libcfs/include/libcfs/libcfs.h
+++ b/libcfs/include/libcfs/libcfs.h
@@ -36,6 +36,10 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/workqueue.h>
+#include <linux/sched.h>
+#ifdef HAVE_SCHED_HEADERS
+#include <linux/sched/signal.h>
+#endif
 
 #include <libcfs/linux/linux-misc.h>
 #include <libcfs/linux/linux-time.h>
@@ -94,6 +98,22 @@ do {                                                                 \
 
 typedef s32 timeout_t;
 
+/* Block all signals except for the @sigs */
+static inline void cfs_block_sigsinv(unsigned long sigs, sigset_t *old)
+{
+       sigset_t new;
+
+       siginitsetinv(&new, sigs);
+       sigorsets(&new, &current->blocked, &new);
+       sigprocmask(SIG_BLOCK, &new, old);
+}
+
+static inline void
+cfs_restore_sigs(sigset_t *old)
+{
+       sigprocmask(SIG_SETMASK, old, NULL);
+}
+
 /* need both kernel and user-land acceptor */
 #define LNET_ACCEPTOR_MIN_RESERVED_PORT    512
 #define LNET_ACCEPTOR_MAX_RESERVED_PORT    1023