From: Andre Noll <maan@systemlinux.org>
Date: Wed, 13 Jan 2010 22:16:01 +0000 (+0100)
Subject: file_write: Kill ->fd of struct private_file_write_data.
X-Git-Tag: v0.4.2~107
X-Git-Url: http://git.tue.mpg.de/?a=commitdiff_plain;h=6cfcbbc058624e76e2cbd503513c60aa2c8607dc;p=paraslash.git

file_write: Kill ->fd of struct private_file_write_data.

Also, simplify the logic in file_write_post_select_btr() a bit.
---

diff --git a/file_write.c b/file_write.c
index 4b6a5efe..4495bf00 100644
--- a/file_write.c
+++ b/file_write.c
@@ -24,12 +24,10 @@
 #include "file_write.cmdline.h"
 #include "error.h"
 
-/** data specific to the file writer */
+/** Data specific to the file writer. */
 struct private_file_write_data {
-	/** the file descriptor of the output file */
+	/** The file descriptor of the output file. */
 	int fd;
-	/** non-zero if \a fd was added to the write fd set */
-	int check_fd;
 };
 
 /*
@@ -80,11 +78,9 @@ static void file_write_pre_select_btr(struct sched *s, struct task *t)
 	int ret;
 
 	t->error = 0;
-	pfwd->check_fd = 0;
 	ret = btr_node_status(wn->btrn, wn->min_iqs, BTR_NT_LEAF);
 	if (ret > 0) {
 		para_fd_set(pfwd->fd, &s->wfds, &s->max_fileno);
-		pfwd->check_fd = 1;
 	} else if (ret < 0) {
 		s->timeout.tv_sec = 0;
 		s->timeout.tv_usec = 1;
@@ -111,12 +107,8 @@ static void file_write_post_select_btr(__a_unused struct sched *s,
 
 	t->error = 0;
 	ret = btr_node_status(btrn, wn->min_iqs, BTR_NT_LEAF);
-	if (ret == 0)
-		return;
-	if (ret < 0)
-		goto err;
-	if (!pfwd->check_fd)
-		return;
+	if (ret <= 0)
+		goto out;
 	if (!FD_ISSET(pfwd->fd, &s->wfds))
 		return;
 	bytes = btr_next_buffer(btrn, &buf);
@@ -124,13 +116,12 @@ static void file_write_post_select_btr(__a_unused struct sched *s,
 	//PARA_INFO_LOG("writing %zu\n", bytes);
 	ret = write(pfwd->fd, buf, bytes);
 	if (ret < 0)
-		goto err;
+		goto out;
 	btr_consume(btrn, ret);
-	return;
-err:
-	assert(ret < 0);
+out:
+	if (ret < 0)
+		btr_remove_node(btrn);
 	t->error = ret;
-	btr_remove_node(btrn);
 }
 
 __malloc static void *file_write_parse_config(const char *options)