From: Jens Axboe <jens.axboe@oracle.com>
Date: Tue, 4 Sep 2007 13:17:09 +0000 (+0200)
Subject: Add unmap hook that belongs to the IO engines
X-Git-Tag: fio-1.17.2~29
X-Git-Url: https://git.kernel.dk/?p=fio.git;a=commitdiff_plain;h=061c86982ea02651cab2239b12983dd382019f26

Add unmap hook that belongs to the IO engines

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
---

diff --git a/fio.h b/fio.h
index c202b0dc..fe314bfd 100644
--- a/fio.h
+++ b/fio.h
@@ -175,6 +175,11 @@ struct io_u {
 	 * Callback for io completion
 	 */
 	int (*end_io)(struct thread_data *, struct io_u *);
+
+	/*
+	 * Called when io_u is about to be freed
+	 */
+	void (*unmap)(struct thread_data *, struct io_u *);
 };
 
 /*
diff --git a/io_u.c b/io_u.c
index 4750ac60..1a68ad11 100644
--- a/io_u.c
+++ b/io_u.c
@@ -770,6 +770,8 @@ static void io_completed(struct thread_data *td, struct io_u *io_u,
 			if (ret && !icd->error)
 				icd->error = ret;
 		}
+		if (io_u->unmap)
+			io_u->unmap(td, io_u);
 	} else {
 		icd->error = io_u->error;
 		io_u_log_error(td, io_u);