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Edited via:
$ contrib/devtools/copyright_header.py update .
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Add a pool for locked memory chunks, replacing LockedPageManager.
This is something I've been wanting to do for a long time. The current
approach of locking objects where they happen to be on the stack or heap
in-place causes a lot of mlock/munlock system call overhead, slowing
down any handling of keys.
Also locked memory is a limited resource on many operating systems (and
using a lot of it bogs down the system), so the previous approach of
locking every page that may contain any key information (but also other
information) is wasteful.
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- BITCOIN_FOLDER_SUBFOLDER_FILENAME_H
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Pagelocker is only needed for secure (usually wallet) operations, so don't make
the zero-after-free allocator depend on it.
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