Zach Brown 9f5e42f7dd Add simple data items ...

Add basic file data support by managing file data items from the page
cache address space callbacks.

Data is read by copying from cached items into page contents in
readpage.

Writes create new ephemeral items which reference dirty pages.  The
items are deleted once they're written in a transaction or if
invalidatepage removes the dirty page they reference.

There's a lot more to do to remove data copies, avoid compaction bw
overhead, and add support for truncate, o_direct, and mmap.

Signed-off-by: Zach Brown <zab@versity.com>

2017-04-18 13:44:54 -07:00

kmod

Add simple data items

2017-04-18 13:44:54 -07:00

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