Author: hselasky
Date: Wed May 31 15:05:44 2017
New Revision: 319338
URL: https://svnweb.freebsd.org/changeset/base/319338
Log:
Implement in_atomic() function in the LinuxKPI.
Obtained from: kmacy @
MFC after: 1 week
Sponsored by: Mellanox Technologies
Modified:
head/sys/compat/linuxkpi/common/include/linux/kthread.h
head/sys/compat/linuxkpi/common/src/linux_compat.c
Modified: head/sys/compat/linuxkpi/common/include/linux/kthread.h
==============================================================================
--- head/sys/compat/linuxkpi/common/include/linux/kthread.h Wed May 31
14:59:03 2017 (r319337)
+++ head/sys/compat/linuxkpi/common/include/linux/kthread.h Wed May 31
15:05:44 2017 (r319338)
@@ -48,10 +48,15 @@
__task; \
})
+#define in_atomic() ({ \
+ linux_in_atomic(); \
+})
+
extern int kthread_stop(struct task_struct *);
extern bool kthread_should_stop_task(struct task_struct *);
extern bool kthread_should_stop(void);
extern void linux_kthread_fn(void *);
extern struct task_struct *linux_kthread_setup_and_run(struct thread *,
linux_task_fn_t *, void *arg);
+extern int linux_in_atomic(void);
#endif /* _LINUX_KTHREAD_H_ */
Modified: head/sys/compat/linuxkpi/common/src/linux_compat.c
==============================================================================
--- head/sys/compat/linuxkpi/common/src/linux_compat.c Wed May 31 14:59:03
2017 (r319337)
+++ head/sys/compat/linuxkpi/common/src/linux_compat.c Wed May 31 15:05:44
2017 (r319338)
@@ -73,8 +73,9 @@ __FBSDID("$FreeBSD$");
#include <linux/timer.h>
#include <linux/interrupt.h>
#include <linux/uaccess.h>
-#include <linux/kernel.h>
#include <linux/list.h>
+#include <linux/kthread.h>
+#include <linux/kernel.h>
#include <linux/compat.h>
#include <linux/poll.h>
#include <linux/smp.h>
@@ -1677,6 +1678,13 @@ linux_on_each_cpu(void callback(void *), void *data)
smp_rendezvous(smp_no_rendezvous_barrier, callback,
smp_no_rendezvous_barrier, data);
return (0);
+}
+
+int
+linux_in_atomic(void)
+{
+
+ return ((curthread->td_pflags & TDP_NOFAULTING) != 0);
}
struct linux_cdev *
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