Change Details

Previously before you could call unrhdr_delete you needed to individually free every allocated unit. It is useful to be able to tear down the unr without having to go through this process, as it is significantly faster than freeing the individual units. When unmounting a tmpfs, do not call free_unr. tmpfs uses unr(9) to allocate inodes. Previously when unmounting it would individually free the units when it freed each vnode. This is unnecessary as we can use the newly-added unrhdr_clear function to clear out the unr in onde go. This measurably reduces the time to unmount a tmpfs with many files.

Previously before you could call unrhdr_delete you needed to individually free every allocated unit. It is useful to be able to tear down the unr without having to go through this process, as it is significantly faster than freeing the individual units. When unmounting a tmpfs, do not call free_unr. tmpfs uses unr(9) to allocate inodes. Previously when unmounting it would individually free the units when it freed each vnode. This is unnecessary as we can use the newly-added unrhdr_clear function to clear out the unr in onde go. This measurably reduces the time to unmount a tmpfs with many files. This will be committed as two pieces, one for the unr(9) change, one for the tmpfs usage change.

Previously before you could call unrhdr_delete you needed to individually free every allocated unit. It is useful to be able to tear down the unr without having to go through this process, as it is significantly faster than freeing the individual units. When unmounting a tmpfs, do not call free_unr. tmpfs uses unr(9) to allocate inodes. Previously when unmounting it would individually free the units when it freed each vnode. This is unnecessary as we can use the newly-added unrhdr_clear function to clear out the unr in onde go. This measurably reduces the time to unmount a tmpfs with many files. This will be committed as two pieces, one for the unr(9) change, one for the tmpfs usage change.