On 04/22/2014 05:55 PM, Jeff Layton wrote: > On Tue, 22 Apr 2014 17:45:31 +0300 > Boaz Harrosh <openosd@xxxxxxxxx> wrote: > > > There's a big difference between the descriptor and the description. > > The numerical value you get back from something like open() is a file > descriptor. Ha OK sorry I thought that was a file-handle I think in FBSD they call it that. I guess file-handle is the NFS thing. I guess the most common name for those is file-No, fn in code > The thing that that value points to internally in the > kernel is the file description. I did not know that and I completely interchanged these two. In Kernel this is called plain "struct file" so I've never seen this name used before. OK Now it is clear > It's very important that we do not > conflate the two here as these locks are associated with the file > description and not the file descriptor. > Sure you are right. > The best way to illustrate this is the interaction with dup() -- see > the LWN article on these for a complete overview. > I know the difference very well only I got the names mixed Thanks Boaz -- 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
