X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Flinux%2Fnbd.h;h=0f3e69302540d71222d61fa22e2fbdbd2706aae9;hb=97bf2856c6014879bd04983a3e9dfcdac1e7fe85;hp=090e210e98f01043dfa5eeb18561afa874b11af8;hpb=5273a3df6485dc2ad6aa7ddd441b9a21970f003b;p=linux-2.6.git

diff --git a/include/linux/nbd.h b/include/linux/nbd.h
index 090e210e9..0f3e69302 100644
--- a/include/linux/nbd.h
+++ b/include/linux/nbd.h
@@ -15,6 +15,8 @@
 #ifndef LINUX_NBD_H
 #define LINUX_NBD_H
 
+#include <linux/types.h>
+
 #define NBD_SET_SOCK	_IO( 0xab, 0 )
 #define NBD_SET_BLKSIZE	_IO( 0xab, 1 )
 #define NBD_SET_SIZE	_IO( 0xab, 2 )
@@ -37,22 +39,32 @@ enum {
 /* userspace doesn't need the nbd_device structure */
 #ifdef __KERNEL__
 
+#include <linux/wait.h>
+#include <linux/mutex.h>
+
 /* values for flags field */
 #define NBD_READ_ONLY 0x0001
 #define NBD_WRITE_NOCHK 0x0002
 
+struct request;
+
 struct nbd_device {
 	int flags;
 	int harderror;		/* Code of hard error			*/
 	struct socket * sock;
 	struct file * file; 	/* If == NULL, device is not ready, yet	*/
 	int magic;
+
 	spinlock_t queue_lock;
 	struct list_head queue_head;/* Requests are added here...	*/
-	struct semaphore tx_lock;
+	struct request *active_req;
+	wait_queue_head_t active_wq;
+
+	struct mutex tx_lock;
 	struct gendisk *disk;
 	int blksize;
 	u64 bytesize;
+	pid_t pid; /* pid of nbd-client, if attached */
 };
 
 #endif
@@ -68,11 +80,11 @@ struct nbd_device {
  * server. All data are in network byte order.
  */
 struct nbd_request {
-	u32 magic;
-	u32 type;	/* == READ || == WRITE 	*/
+	__be32 magic;
+	__be32 type;	/* == READ || == WRITE 	*/
 	char handle[8];
-	u64 from;
-	u32 len;
+	__be64 from;
+	__be32 len;
 }
 #ifdef __GNUC__
 	__attribute__ ((packed))
@@ -84,8 +96,8 @@ struct nbd_request {
  * it has completed an I/O request (or an error occurs).
  */
 struct nbd_reply {
-	u32 magic;
-	u32 error;		/* 0 = ok, else error	*/
+	__be32 magic;
+	__be32 error;		/* 0 = ok, else error	*/
 	char handle[8];		/* handle you got from request	*/
 };
 #endif