4dd5d00ecc
We pin lmkd in memory so that we don't take page faults (and thus requisition memory) while we're in the process of responding to a low-memory condition. mlockall(2) is the right primitive for this pinning. Previously, we used the MCL_FUTURE flag to mlockall: used this way, mlockall doesn't actually pin all pages in memory, since MCL_FUTURE affects only the default flags for future mappings and doesn't affect mapping already in existence at the time of the mlockall call --- like the lmkd executable itself. This patch adds the MCL_CURRENT flag, which also pins all pages already mapped. Test: code inspection Change-Id: I4563959367a2f0a9cadc3ea41731b7f311326685 |
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| Android.bp | ||
| lmkd.c | ||
| lmkd.rc | ||
| OWNERS | ||