tree 054d0ee873c69836f7dae835b19d11006e1e27f6
parent 40d49a3c9e4a0e5cf7a6fcebc8d4d7d63d1f3f1b
author Matthew Wilcox (Oracle) <willy@infradead.org> 1692390215 +0100
committer Andrew Morton <akpm@linux-foundation.org> 1692919230 -0700

mm: remove enum page_entry_size

Remove the unnecessary encoding of page order into an enum and pass the
page order directly.  That lets us get rid of pe_order().

The switch constructs have to be changed to if/else constructs to prevent
GCC from warning on builds with 3-level page tables where PMD_ORDER and
PUD_ORDER have the same value.

If you are looking at this commit because your driver stopped compiling,
look at the previous commit as well and audit your driver to be sure it
doesn't depend on mmap_lock being held in its ->huge_fault method.

[willy@infradead.org: use "order %u" to match the (non dev_t) style]
  Link: https://lkml.kernel.org/r/ZOUYekbtTv+n8hYf@casper.infradead.org
Link: https://lkml.kernel.org/r/20230818202335.2739663-4-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>