[CIFS] Fix statfs formatting

Version 1.53

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Version 1.52

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Fix oops on second mount to server when null auth is used.

cifs_statfs(struct dentry *dentry, struct kstatfs *buf)

{

	struct super_block *sb = dentry->d_sb;

	int xid;

	struct cifs_sb_info *cifs_sb = CIFS_SB(sb);

	struct cifsTconInfo *tcon = cifs_sb->tcon;

	int rc = -EOPNOTSUPP;

	struct cifs_sb_info *cifs_sb;

	struct cifsTconInfo *pTcon;

	int xid;

	xid = GetXid();

	cifs_sb = CIFS_SB(sb);

	pTcon = cifs_sb->tcon;

	buf->f_type = CIFS_MAGIC_NUMBER;

	/* instead could get the real value via SMB_QUERY_FS_ATTRIBUTE_INFO */

	buf->f_namelen = PATH_MAX; /* PATH_MAX may be too long - it would

				      presumably be total path, but note

				      that some servers (includinng Samba 3)

				      have a shorter maximum path */

	/*

	 * PATH_MAX may be too long - it would presumably be total path,

	 * but note that some servers (includinng Samba 3) have a shorter

	 * maximum path.

	 *

	 * Instead could get the real value via SMB_QUERY_FS_ATTRIBUTE_INFO.

	 */

	buf->f_namelen = PATH_MAX;

	buf->f_files = 0;	/* undefined */

	buf->f_ffree = 0;	/* unlimited */

/* BB we could add a second check for a QFS Unix capability bit */

/* BB FIXME check CIFS_POSIX_EXTENSIONS Unix cap first FIXME BB */

    if ((pTcon->ses->capabilities & CAP_UNIX) && (CIFS_POSIX_EXTENSIONS &

			le64_to_cpu(pTcon->fsUnixInfo.Capability)))

	    rc = CIFSSMBQFSPosixInfo(xid, pTcon, buf);

	/*

	 * We could add a second check for a QFS Unix capability bit

	 */

	if ((tcon->ses->capabilities & CAP_UNIX) &&

	    (CIFS_POSIX_EXTENSIONS & le64_to_cpu(tcon->fsUnixInfo.Capability)))

		rc = CIFSSMBQFSPosixInfo(xid, tcon, buf);

    /* Only need to call the old QFSInfo if failed

    on newer one */

    if (rc)

	if (pTcon->ses->capabilities & CAP_NT_SMBS)

		rc = CIFSSMBQFSInfo(xid, pTcon, buf); /* not supported by OS2 */

	/*

	 * Only need to call the old QFSInfo if failed on newer one,

	 * e.g. by OS/2.

	 **/

	if (rc && (tcon->ses->capabilities & CAP_NT_SMBS))

		rc = CIFSSMBQFSInfo(xid, tcon, buf);

	/* Some old Windows servers also do not support level 103, retry with

	   older level one if old server failed the previous call or we

	   bypassed it because we detected that this was an older LANMAN sess */

	/*

	 * Some old Windows servers also do not support level 103, retry with

	 * older level one if old server failed the previous call or we

	 * bypassed it because we detected that this was an older LANMAN sess

	 */

	if (rc)

		rc = SMBOldQFSInfo(xid, pTcon, buf);

	/* int f_type;

	   __fsid_t f_fsid;

	   int f_namelen;  */

	/* BB get from info in tcon struct at mount time call to QFSAttrInfo */

		rc = SMBOldQFSInfo(xid, tcon, buf);

	FreeXid(xid);

	return 0;		/* always return success? what if volume is no

				   longer available? */

	return 0;

}

static int cifs_permission(struct inode *inode, int mask, struct nameidata *nd)