2 files changed, 36 insertions, 0 deletions
diff --git a/api/src/glfs-fops.c b/api/src/glfs-fops.c
index 4bc0bb1b6d3..fbc9f4b49e4 100644
--- a/api/src/glfs-fops.c
+++ b/api/src/glfs-fops.c
@@ -2666,6 +2666,40 @@ out:
 
 
 int
+glfs_discard (struct glfs_fd *glfd, off_t offset, size_t len)
+{
+	int              ret = -1;
+	xlator_t        *subvol = NULL;
+	fd_t		*fd = NULL;
+
+	__glfs_entry_fd (glfd);
+
+	subvol = glfs_active_subvol (glfd->fs);
+	if (!subvol) {
+		ret = -1;
+		errno = EIO;
+		goto out;
+	}
+
+	fd = glfs_resolve_fd (glfd->fs, subvol, glfd);
+	if (!fd) {
+		ret = -1;
+		errno = EBADFD;
+		goto out;
+	}
+
+	ret = syncop_discard (subvol, fd, offset, len);
+out:
+	if (fd)
+		fd_unref(fd);
+
+	glfs_subvol_done (glfd->fs, subvol);
+
+	return ret;
+}
+
+
+int
 glfs_chdir (struct glfs *fs, const char *path)
 {
 	int              ret = -1;
diff --git a/api/src/glfs.h b/api/src/glfs.h
index 3888a103eb9..700e10f17c9 100644
--- a/api/src/glfs.h
+++ b/api/src/glfs.h
@@ -450,6 +450,8 @@ int glfs_fremovexattr (glfs_fd_t *fd, const char *name);
 
 int glfs_fallocate(glfs_fd_t *fd, int keep_size, off_t offset, size_t len);
 
+int glfs_discard(glfs_fd_t *fd, off_t offset, size_t len);
+
 char *glfs_getcwd (glfs_t *fs, char *buf, size_t size);
 
 int glfs_chdir (glfs_t *fs, const char *path);