1 files changed, 35 insertions, 52 deletions

diff --git a/fs/qnx4/dir.c b/fs/qnx4/dir.c
index ea9ffefb48a..b218f965817 100644
--- a/fs/qnx4/dir.c
+++ b/fs/qnx4/dir.c
@@ -11,18 +11,12 @@
  * 20-06-1998 by Frank Denis : Linux 2.1.99+ & dcache support.
  */
 
-#include <linux/string.h>
-#include <linux/errno.h>
-#include <linux/fs.h>
-#include <linux/qnx4_fs.h>
-#include <linux/stat.h>
-#include <linux/smp_lock.h>
 #include <linux/buffer_head.h>
+#include "qnx4.h"
 
-
-static int qnx4_readdir(struct file *filp, void *dirent, filldir_t filldir)
+static int qnx4_readdir(struct file *file, struct dir_context *ctx)
 {
-	struct inode *inode = filp->f_path.dentry->d_inode;
+	struct inode *inode = file_inode(file);
 	unsigned int offset;
 	struct buffer_head *bh;
 	struct qnx4_inode_entry *de;
@@ -31,68 +25,57 @@ static int qnx4_readdir(struct file *filp, void *dirent, filldir_t filldir)
 	int ix, ino;
 	int size;
 
-	QNX4DEBUG(("qnx4_readdir:i_size = %ld\n", (long) inode->i_size));
-	QNX4DEBUG(("filp->f_pos         = %ld\n", (long) filp->f_pos));
-
-	lock_kernel();
+	QNX4DEBUG((KERN_INFO "qnx4_readdir:i_size = %ld\n", (long) inode->i_size));
+	QNX4DEBUG((KERN_INFO "pos                 = %ld\n", (long) ctx->pos));
 
-	while (filp->f_pos < inode->i_size) {
-		blknum = qnx4_block_map( inode, filp->f_pos >> QNX4_BLOCK_SIZE_BITS );
+	while (ctx->pos < inode->i_size) {
+		blknum = qnx4_block_map(inode, ctx->pos >> QNX4_BLOCK_SIZE_BITS);
 		bh = sb_bread(inode->i_sb, blknum);
-		if(bh==NULL) {
+		if (bh == NULL) {
 			printk(KERN_ERR "qnx4_readdir: bread failed (%ld)\n", blknum);
-			break;
+			return 0;
 		}
-		ix = (int)(filp->f_pos >> QNX4_DIR_ENTRY_SIZE_BITS) % QNX4_INODES_PER_BLOCK;
-		while (ix < QNX4_INODES_PER_BLOCK) {
+		ix = (ctx->pos >> QNX4_DIR_ENTRY_SIZE_BITS) % QNX4_INODES_PER_BLOCK;
+		for (; ix < QNX4_INODES_PER_BLOCK; ix++, ctx->pos += QNX4_DIR_ENTRY_SIZE) {
 			offset = ix * QNX4_DIR_ENTRY_SIZE;
 			de = (struct qnx4_inode_entry *) (bh->b_data + offset);
-			size = strlen(de->di_fname);
-			if (size) {
-				if ( !( de->di_status & QNX4_FILE_LINK ) && size > QNX4_SHORT_NAME_MAX )
-					size = QNX4_SHORT_NAME_MAX;
-				else if ( size > QNX4_NAME_MAX )
-					size = QNX4_NAME_MAX;
-
-				if ( ( de->di_status & (QNX4_FILE_USED|QNX4_FILE_LINK) ) != 0 ) {
-					QNX4DEBUG(("qnx4_readdir:%.*s\n", size, de->di_fname));
-					if ( ( de->di_status & QNX4_FILE_LINK ) == 0 )
-						ino = blknum * QNX4_INODES_PER_BLOCK + ix - 1;
-					else {
-						le  = (struct qnx4_link_info*)de;
-						ino = ( le32_to_cpu(le->dl_inode_blk) - 1 ) *
-							QNX4_INODES_PER_BLOCK +
-							le->dl_inode_ndx;
-					}
-					if (filldir(dirent, de->di_fname, size, filp->f_pos, ino, DT_UNKNOWN) < 0) {
-						brelse(bh);
-						goto out;
-					}
-				}
+			if (!de->di_fname[0])
+				continue;
+			if (!(de->di_status & (QNX4_FILE_USED|QNX4_FILE_LINK)))
+				continue;
+			if (!(de->di_status & QNX4_FILE_LINK))
+				size = QNX4_SHORT_NAME_MAX;
+			else
+				size = QNX4_NAME_MAX;
+			size = strnlen(de->di_fname, size);
+			QNX4DEBUG((KERN_INFO "qnx4_readdir:%.*s\n", size, de->di_fname));
+			if (!(de->di_status & QNX4_FILE_LINK))
+				ino = blknum * QNX4_INODES_PER_BLOCK + ix - 1;
+			else {
+				le  = (struct qnx4_link_info*)de;
+				ino = ( le32_to_cpu(le->dl_inode_blk) - 1 ) *
+					QNX4_INODES_PER_BLOCK +
+					le->dl_inode_ndx;
+			}
+			if (!dir_emit(ctx, de->di_fname, size, ino, DT_UNKNOWN)) {
+				brelse(bh);
+				return 0;
 			}
-			ix++;
-			filp->f_pos += QNX4_DIR_ENTRY_SIZE;
 		}
 		brelse(bh);
 	}
-out:
-	unlock_kernel();
 	return 0;
 }
 
 const struct file_operations qnx4_dir_operations =
 {
+	.llseek		= generic_file_llseek,
 	.read		= generic_read_dir,
-	.readdir	= qnx4_readdir,
-	.fsync		= file_fsync,
+	.iterate	= qnx4_readdir,
+	.fsync		= generic_file_fsync,
 };
 
 const struct inode_operations qnx4_dir_inode_operations =
 {
 	.lookup		= qnx4_lookup,
-#ifdef CONFIG_QNX4FS_RW
-	.create		= qnx4_create,
-	.unlink		= qnx4_unlink,
-	.rmdir		= qnx4_rmdir,
-#endif
 };