11 Commits (b47a27c60fff4747f7570327f79dfc41166fd349)

Author SHA1 Message Date
Avril 35c6cabce3
memfile::hp: Changed `get_masks()` to return an iterator of `SizedMask` instead of just `Mask` to retain the size of the huge-page itself in bytes (for `ftruncate()` calls, and `mmap()` calls.)
2 years ago
Avril 872ea74421
It seems creating HUGETLB memory files either just doesn"t work or changes their behaviour so that any (or at least, small arbitrary) writing or fallocate()ing to them fails... Read up on MFD_HUGETLB more then re-do a test like `memfd_create_wrapper()` to find out why... and if it depends on the MAP_HUGE_ mask, and if so, find one that works... (We know when masks are invalid, since the error message is different. The masks collected via `get_masks()` *are* valid for this system, they just prevent the fd from being any way useful.)
2 years ago
Avril 573845a667
memfile::hp: Added `get_masks()`: Returns an iterator over all `MAP_HUGE` masks found on system.
2 years ago
Avril b1a64475f6
Merge branch 'master' into safe-memfd: memfile: Merged `RawFile::try_link_from()`: Analogue to `try_link_to()`.
3 years ago
Avril c6032467fa
memfile: Added `RawFile::try_link_from()`: Analogue to `try_link_to()`. Instrumented and added panicking versions of both functions. Added `clone_from()` impl that uses `try_link_from()` (i.e. `dup2()`)
3 years ago
Avril 59363848a2
Started: `memfile::hp`: `MFD_HUGETLB` can be used when a size is known to exceed into the boundary of a hugepage. Currently in the process of writing function to collect all possible hugepage sizes and generate the correct flag masks for `memfd_create(, MFD_HUGETLB | ...)` for each one; and the smallest one that contains the known size can be used for the `memfd_create()` call (if the size fits any at all.)
3 years ago
Avril 23d022b5fe
Added working memfile implementation
3 years ago
Avril 0628853b43
Working memfile implementation
3 years ago
Avril edb57c7c95
memfile: Disambiguated memfile errors resulting in `fallocate()` sizes being too large or the call itself failing.
3 years ago
Avril ed957bcec8
feature memfile: added `RawFile::open_mem()`
3 years ago
Avril 65c297b228
Started adding `memfile` feature: Use a `memfd_create()`d in-memory temporary file.
3 years ago