Hi,
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This commit has been processed because it contains a "Fixes:" tag,
fixing commit: 0aed55af8834 x86, uaccess: introduce copy_from_iter_flushcache
for pmem / cache-bypass operations.
The bot has tested the following trees: v5.1.3, v5.0.17, v4.19.44, v4.14.120.
Jeff discovered that performance improves from ~375K iops to ~519K iops
on a simple psync-write fio workload when moving the location of 'struct
page' from the default PMEM location to DRAM. This result is surprising
because the expectation is that 'struct page' for dax is only needed for
third