[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/os/linux/linux-3.4.x/fs/qnx4/dir.c b/ap/os/linux/linux-3.4.x/fs/qnx4/dir.c
new file mode 100644
index 0000000..7b03294
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/fs/qnx4/dir.c
@@ -0,0 +1,85 @@
+/*
+ * QNX4 file system, Linux implementation.
+ *
+ * Version : 0.2.1
+ *
+ * Using parts of the xiafs filesystem.
+ *
+ * History :
+ *
+ * 28-05-1998 by Richard Frowijn : first release.
+ * 20-06-1998 by Frank Denis : Linux 2.1.99+ & dcache support.
+ */
+
+#include <linux/buffer_head.h>
+#include "qnx4.h"
+
+static int qnx4_readdir(struct file *filp, void *dirent, filldir_t filldir)
+{
+ struct inode *inode = filp->f_path.dentry->d_inode;
+ unsigned int offset;
+ struct buffer_head *bh;
+ struct qnx4_inode_entry *de;
+ struct qnx4_link_info *le;
+ unsigned long blknum;
+ int ix, ino;
+ int size;
+
+ QNX4DEBUG((KERN_INFO "qnx4_readdir:i_size = %ld\n", (long) inode->i_size));
+ QNX4DEBUG((KERN_INFO "filp->f_pos = %ld\n", (long) filp->f_pos));
+
+ while (filp->f_pos < inode->i_size) {
+ blknum = qnx4_block_map( inode, filp->f_pos >> QNX4_BLOCK_SIZE_BITS );
+ bh = sb_bread(inode->i_sb, blknum);
+ if(bh==NULL) {
+ printk(KERN_ERR "qnx4_readdir: bread failed (%ld)\n", blknum);
+ break;
+ }
+ ix = (int)(filp->f_pos >> QNX4_DIR_ENTRY_SIZE_BITS) % QNX4_INODES_PER_BLOCK;
+ while (ix < QNX4_INODES_PER_BLOCK) {
+ 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((KERN_INFO "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;
+ }
+ }
+ }
+ ix++;
+ filp->f_pos += QNX4_DIR_ENTRY_SIZE;
+ }
+ brelse(bh);
+ }
+out:
+ return 0;
+}
+
+const struct file_operations qnx4_dir_operations =
+{
+ .llseek = generic_file_llseek,
+ .read = generic_read_dir,
+ .readdir = qnx4_readdir,
+ .fsync = generic_file_fsync,
+};
+
+const struct inode_operations qnx4_dir_inode_operations =
+{
+ .lookup = qnx4_lookup,
+};