On Sunday 04 February 2007 16:15, Neil Brown wrote: > The behaviour in the face of a lazy unmount should be clarified in > this comment. Done. > If sys_getcwd is called on a directory that is no longer > connected to the root, it isn't clear to me that it should return > without an error. > Without your patch it can return garbage which is clearly wrong. > With you patch it will return a relative path name, which is also > wrong (it isn't a valid path that leads to the current working directory). Right, it should return -ENOENT instead in that case. Fixed as well. > I would suggest that 'fail_deleted' be (e.g.) changed to > 'fail_condition' where two conditions are defined > #define DPATH_FAIL_DELETED 1 > #define DPATH_FAIL_DISCONNECTED 2 The much cleaner interface is to check if the path returned starts with a slash. If it doesn't, we know the path is bad as far as sys_getcwd() is concerned. We will construct the partial path in __d_path before figuring out that the path is disconnected, so no performance penalty, either. > In reality, you are comparing "buflen < namelen+1" but spelling it as > "buflen <= namelen". I would prefer the full spelling with least room > for confusion. I'm fine either way. > Maybe: > > + buflen -= namelen + 1; > > + buffer -= namelen + 1; > > + memcpy(buffer+1, dentry->d_name.name, namelen); > > + *buffer = '/'; That's better, yes. Thanks, Andreas - To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
