On Mon, Mar 15, 2021 at 02:14:35PM +0100, Miklos Szeredi wrote: > On Mon, Mar 15, 2021 at 1:07 PM David Howells <dhowells@xxxxxxxxxx> wrote: > > > > > > Hi Al, Miklós, > > > > Can we consider replacing the "insert cursor" approach we're currently > > using for proc files to scan the current namespace's mount list[1] with > > something that uses an xarray of mounts indexed by mnt_id? > > > > This has some advantages: > > > > (1) It's simpler. We don't need to insert dummy mount objects as > > bookmarks into the mount list and code that's walking the list doesn't > > have to carefully step over them. > > > > (2) We can use the file position to represent the mnt_id and can jump to > > it directly - ie. using seek() to jump to a mount object by its ID. > > What happens if the mount at the current position is removed? xa_find() will move to the next one.
