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authorLinus Torvalds <torvalds@linux-foundation.org>2024-07-24 10:29:50 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2024-07-24 10:29:50 -0700
commit7a3fad30fd8b4b5e370906b3c554f64026f56c2f (patch)
treead1f004b3157bf01db1295b6de37df8673089989 /mm/msync.c
parentd1e9a63dcd7248385bbbccf1650d69e4af914f05 (diff)
parentad8070cb1b4bd40aa19a5e3f7c24d7f62c71b382 (diff)
Merge tag 'random-6.11-rc1-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random
Pull random number generator updates from Jason Donenfeld: "This adds getrandom() support to the vDSO. First, it adds a new kind of mapping to mmap(2), MAP_DROPPABLE, which lets the kernel zero out pages anytime under memory pressure, which enables allocating memory that never gets swapped to disk but also doesn't count as being mlocked. Then, the vDSO implementation of getrandom() is introduced in a generic manner and hooked into random.c. Next, this is implemented on x86. (Also, though it's not ready for this pull, somebody has begun an arm64 implementation already) Finally, two vDSO selftests are added. There are also two housekeeping cleanup commits" * tag 'random-6.11-rc1-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random: MAINTAINERS: add random.h headers to RNG subsection random: note that RNDGETPOOL was removed in 2.6.9-rc2 selftests/vDSO: add tests for vgetrandom x86: vdso: Wire up getrandom() vDSO implementation random: introduce generic vDSO getrandom() implementation mm: add MAP_DROPPABLE for designating always lazily freeable mappings
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