kvm tools: Close the disk images after the guest shuts down

Signed-off-by: Prasad Joshi <prasadjoshi124@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>

disk/core.c

@@ -115,6 +115,14 @@ int disk_image__close(struct disk_image *disk)
 	return 0;
 }
 
+void disk_image__close_all(struct disk_image **disks, int count)
+{
+	while (count)
+		disk_image__close(disks[--count]);
+
+	free(disks);
+}
+
 /*
  * Fill iov with disk data, starting from sector 'sector'.
  * Return amount of bytes read.

include/kvm/disk-image.h

@@ -55,6 +55,7 @@ struct disk_image *disk_image__open(const char *filename, bool readonly);
 struct disk_image **disk_image__open_all(const char **filenames, bool *readonly, int count);
 struct disk_image *disk_image__new(int fd, u64 size, struct disk_image_operations *ops, int mmap);
 int disk_image__close(struct disk_image *disk);
+void disk_image__close_all(struct disk_image **disks, int count);
 int disk_image__flush(struct disk_image *disk);
 ssize_t disk_image__read(struct disk_image *disk, u64 sector, const struct iovec *iov, int iovcount);
 ssize_t disk_image__write(struct disk_image *disk, u64 sector, const struct iovec *iov, int iovcount);

kvm-run.c

@@ -617,6 +617,7 @@ int kvm_cmd_run(int argc, const char **argv, const char *prefix)
 			exit_code = 1;
 	}
 
+	disk_image__close_all(kvm->disks, image_count);
 	kvm__delete(kvm);
 
 	if (!exit_code)