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* fhandler_disk_file.cc (fhandler_disk_file::opendir): Don't try to

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use FileIdBothDirectoryInformation on NFS shares.  Fix comment to
	explain why.
	* path.cc (symlink_info::check): Reinstantiate no_ea.  Use in
	erroneously changed condition.
This commit is contained in:
Corinna Vinschen
2008-05-23 17:22:18 +00:00
parent e765b3c0ad
commit 6afd630106
3 changed files with 25 additions and 14 deletions
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18
winsup/cygwin/fhandler_disk_file.cc
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@ -1569,19 +1569,21 @@ fhandler_disk_file::opendir (int fd)
FileIdBothDirectoryInformation only on filesystems supporting
persistent ACLs, FileDirectoryInformation otherwise.
On older NFS clients (up to SFU 3.5), dangling symlinks
are hidden from directory queries, unless you use the
FileNamesInformation info class. Nevertheless, we try
FileIdBothDirectoryInformation first. On newer NFS clients
it works fine, on the older ones it returns "invalid info
class". So we can stick to the above explained mechanism. */
NFS clients hide dangling symlinks from directory queries,
unless you use the FileNamesInformation info class.
On newer NFS clients (>=Vista) FileIdBothDirectoryInformation
works fine, but only if the NFS share is mounted to a drive
letter. TODO: We don't test that here for now, but it might
be worth to test if there's a speed gain in using
FileIdBothDirectoryInformation, because it doesn't require to
open the file to read the inode number. */
if (pc.hasgood_inode ())
{
dir->__flags |= dirent_set_d_ino;
if (wincap.has_fileid_dirinfo ())
dir->__flags |= dirent_get_d_ino;
if (pc.fs_is_nfs ())
dir->__flags |= dirent_nfs_d_ino;
else if (wincap.has_fileid_dirinfo ())
dir->__flags |= dirent_get_d_ino;
}
}
if (fd >= 0)