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"RLIMIT_MEMLOCK: This is the maximum number of bytes of memory that may
be locked into RAM." - getrlimit(2)
PiperOrigin-RevId: 226384346
Change-Id: Iefac4a1bb69f7714dc813b5b871226a8344dc800
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PiperOrigin-RevId: 226224230
Change-Id: Id24c7d3733722fd41d5fe74ef64e0ce8c68f0b12
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Currently mlock() and friends do nothing whatsoever. However, mlocking
is directly application-visible in a number of ways; for example,
madvise(MADV_DONTNEED) and msync(MS_INVALIDATE) both fail on mlocked
regions. We handle this inconsistently: MADV_DONTNEED is too important
to not work, but MS_INVALIDATE is rejected.
Change MM to track mlocked regions in a manner consistent with Linux.
It still will not actually pin pages into host physical memory, but:
- mlock() will now cause sentry memory management to precommit mlocked
pages.
- MADV_DONTNEED and MS_INVALIDATE will interact with mlocked pages as
described above.
PiperOrigin-RevId: 225861605
Change-Id: Iee187204979ac9a4d15d0e037c152c0902c8d0ee
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PiperOrigin-RevId: 217951017
Change-Id: Ie08bf6987f98467d07457bcf35b5f1ff6e43c035
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Closes #2
PiperOrigin-RevId: 202997196
Change-Id: I0c9f6f5a8a1abe1ae427bca5f590bdf9f82a6675
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PiperOrigin-RevId: 194583126
Change-Id: Ica1d8821a90f74e7e745962d71801c598c652463
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