Al Viro <[email protected]> writes: > On Sat, Aug 18, 2012 at 05:41:39AM -0400, Namjae Jeon wrote: >> From: Namjae Jeon <[email protected]> >> >> This patch-set eliminates the client side ESTALE errors when >> a FAT partition exported over NFS has its dentries evicted >> from the cache. >> >> One of the reasons for this error is lack of permanent inode >> numbers on FAT which makes it difficult to construct persistent >> file handles.This can be overcome by using the on-disk location >> of the directory entries (i_pos) as the inode number. > > The hell it can. You've just made them unstable on rename(2).
As more hint. We can't use i_pos as the inode number. E.g. inode is unlinked but is still opened (orphaned inode), the dir entry is free and you can create the inode on same i_pos. After that, both inodes have same i_pos (so inode number). Thanks. -- OGAWA Hirofumi <[email protected]> -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
