6 files changed, 23 insertions, 4 deletions
diff --git a/sys/amd64/linux/linux_dummy.c b/sys/amd64/linux/linux_dummy.c
index 8384e6376bb9..32922da113c6 100644
--- a/sys/amd64/linux/linux_dummy.c
+++ b/sys/amd64/linux/linux_dummy.c
@@ -99,7 +99,6 @@ DUMMY(migrate_pages);
 DUMMY(unshare);
 /* Linux 2.6.17: */
 DUMMY(splice);
-DUMMY(sync_file_range);
 DUMMY(tee);
 DUMMY(vmsplice);
 /* Linux 2.6.18: */
diff --git a/sys/amd64/linux32/linux32_dummy.c b/sys/amd64/linux32/linux32_dummy.c
index 23fba4f72a00..1f8f5aa1c24f 100644
--- a/sys/amd64/linux32/linux32_dummy.c
+++ b/sys/amd64/linux32/linux32_dummy.c
@@ -105,7 +105,6 @@ DUMMY(migrate_pages);
 DUMMY(unshare);
 /* Linux 2.6.17: */
 DUMMY(splice);
-DUMMY(sync_file_range);
 DUMMY(tee);
 DUMMY(vmsplice);
 /* Linux 2.6.18: */
diff --git a/sys/arm64/linux/linux_dummy.c b/sys/arm64/linux/linux_dummy.c
index 73cadbcf7e42..ca43f5d35a05 100644
--- a/sys/arm64/linux/linux_dummy.c
+++ b/sys/arm64/linux/linux_dummy.c
@@ -101,7 +101,6 @@ DUMMY(migrate_pages);
 DUMMY(unshare);
 /* Linux 2.6.17: */
 DUMMY(splice);
-DUMMY(sync_file_range);
 DUMMY(tee);
 DUMMY(vmsplice);
 /* Linux 2.6.18: */
diff --git a/sys/compat/linux/linux_file.c b/sys/compat/linux/linux_file.c
index 57723e1aafd7..20d58ea58346 100644
--- a/sys/compat/linux/linux_file.c
+++ b/sys/compat/linux/linux_file.c
@@ -908,6 +908,22 @@ linux_fdatasync(td, uap)
 }
 
 int
+linux_sync_file_range(td, uap)
+	struct thread *td;
+	struct linux_sync_file_range_args *uap;
+{
+
+	if (uap->offset < 0 || uap->nbytes < 0 ||
+	    (uap->flags & ~(LINUX_SYNC_FILE_RANGE_WAIT_BEFORE |
+	    LINUX_SYNC_FILE_RANGE_WRITE |
+	    LINUX_SYNC_FILE_RANGE_WAIT_AFTER)) != 0) {
+		return (EINVAL);
+	}
+
+	return (kern_fsync(td, uap->fd, false));
+}
+
+int
 linux_pread(struct thread *td, struct linux_pread_args *uap)
 {
 	struct vnode *vp;
diff --git a/sys/compat/linux/linux_file.h b/sys/compat/linux/linux_file.h
index 8742fa27b278..40384c52a066 100644
--- a/sys/compat/linux/linux_file.h
+++ b/sys/compat/linux/linux_file.h
@@ -134,4 +134,11 @@
 #define	LINUX_RENAME_EXCHANGE	0x00000002
 #define	LINUX_RENAME_WHITEOUT	0x00000004
 
+/*
+ * sync_file_range flags
+ */
+#define	LINUX_SYNC_FILE_RANGE_WAIT_BEFORE	1
+#define	LINUX_SYNC_FILE_RANGE_WRITE		2
+#define	LINUX_SYNC_FILE_RANGE_WAIT_AFTER	4
+
 #endif	/* !_LINUX_FILE_H_ */
diff --git a/sys/i386/linux/linux_dummy.c b/sys/i386/linux/linux_dummy.c
index f916992e48c4..4ed88cef9e82 100644
--- a/sys/i386/linux/linux_dummy.c
+++ b/sys/i386/linux/linux_dummy.c
@@ -101,7 +101,6 @@ DUMMY(migrate_pages);
 DUMMY(unshare);
 /* Linux 2.6.17: */
 DUMMY(splice);
-DUMMY(sync_file_range);
 DUMMY(tee);
 DUMMY(vmsplice);
 /* Linux 2.6.18: */