memfile::hp: Switched from `fallocate()` to `ftruncate()`: This system-call actually does allow the size to be set, as long as it is a multiple of the huge-page size used to create it.
memfile:: Added `RawFile::truncate_size()`: Set size using `ftruncate()` instead of `fallocate()`: This difference matters a lot with hugetlbfs-backed FDs.
Fortune for collect's current commit: Blessing − 吉
Added (default) feature-flag for `hugetlb`: Will use `memfile::hp` for `memfile` enabled feature.
Added tests for both checked and unchecked `Mask` creation.
Added feature `hugepage-checked-masks`: Use checked `Mask` creation in `get_masks{,_in}()`. Only useful for debugging or for ensuring no invalid values slip past mask creation. Disabled by default and offers not much of an improvement other than a bit more safety (integer arithmatic checking).
Fortune for collect's current commit: Half curse − 半凶
The above is all either `const fn` or checked, and can be bitwise OR"d together, producing a higher `Mask`, or bitwise OR"d with an arbitrary `c_uint` to produce a valid mask for `memfd_create()` (in the latter case, the OR with MFD_HUGETLB is unneeded, as `Mask` applies this itself.)
Fortune for collect's current commit: Blessing − 吉
TODO: This will be a seperate comptime feature: `hugetlb`: Extend `memfile` with the ability to allocate apporpirately sized huge-pages when input size is known to extend into them.
Fortune for collect's current commit: Blessing − 吉
Needs testing, and the XXX comment about `memfd_create()` name lifetimes also needs testing. (If they do need to be static; `stackalloc` as a dependancy can be removed entirely, then: `DEFAULT_NAME` will be changed to a CString, function parameter `name` and `error::MemfileCreationStep::Create(name)` will be changed to `Option<&"static CStr>`.
Fortune for collect's current commit: Future blessing − 末吉
Avril