- obsolete

[packages/kernel.git] / linux-2.4.20-odirect.patch

diff -urNp linux-1290/fs/fcntl.c linux-1300/fs/fcntl.c
--- linux-1290/fs/fcntl.c	
+++ linux-1300/fs/fcntl.c	
@@ -199,7 +199,7 @@ asmlinkage long sys_dup(unsigned int fil
 	return ret;
 }
 
-#define SETFL_MASK (O_APPEND | O_NONBLOCK | O_NDELAY | FASYNC | O_DIRECT)
+#define SETFL_MASK (O_APPEND | O_NONBLOCK | O_NDELAY | FASYNC)
 
 static int setfl(int fd, struct file * filp, unsigned long arg)
 {
@@ -222,25 +222,6 @@ static int setfl(int fd, struct file * f
 		}
 	}
 
-	if (arg & O_DIRECT) {
-		/*
-		 * alloc_kiovec() can sleep and we are only serialized by
-		 * the big kernel lock here, so abuse the i_sem to serialize
-		 * this case too. We of course wouldn't need to go deep down
-		 * to the inode layer, we could stay at the file layer, but
-		 * we don't want to pay for the memory of a semaphore in each
-		 * file structure too and we use the inode semaphore that we just
-		 * pay for anyways.
-		 */
-		error = 0;
-		down(&inode->i_sem);
-		if (!filp->f_iobuf)
-			error = alloc_kiovec(1, &filp->f_iobuf);
-		up(&inode->i_sem);
-		if (error < 0)
-			return error;
-	}
-
 	/* required for strict SunOS emulation */
 	if (O_NONBLOCK != O_NDELAY)
 	       if (arg & O_NDELAY)
diff -urNp linux-1290/fs/open.c linux-1300/fs/open.c
--- linux-1290/fs/open.c	
+++ linux-1300/fs/open.c	
@@ -642,6 +642,8 @@ struct file *filp_open(const char * file
 {
 	int namei_flags, error;
 	struct nameidata nd;
+	
+	flags &= ~O_DIRECT;
 
 	namei_flags = flags;
 	if ((namei_flags+1) & O_ACCMODE)