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331722 |
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29-Mar-2018 |
eadler |
Revert r330897:
This was intended to be a non-functional change. It wasn't. The commit message was thus wrong. In addition it broke arm, and merged crypto related code.
Revert with prejudice.
This revert skips files touched in r316370 since that commit was since MFCed. This revert also skips files that require $FreeBSD$ property changes.
Thank you to those who helped me get out of this mess including but not limited to gonzo, kevans, rgrimes.
Requested by: gjb (re)
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193260 |
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01-Jun-2009 |
jhb |
Add a simple API to manage scatter/gather lists of phyiscal addresses. Each list describes a logical memory object that is backed by one or more physical address ranges. To minimize locking, the sglist objects themselves are immutable once they are shared.
These objects may be used in the future to facilitate I/O requests using physically-addressed buffers. For the immediate future I plan to use them to implement a new type of VM object and pager.
Reviewed by: jeff, scottl MFC after: 1 month
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