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| author | Matthew Wilcox <willy@infradead.org> | 2017-11-03 18:30:42 +0100 |
|---|---|---|
| committer | Matthew Wilcox <willy@infradead.org> | 2018-09-30 04:47:49 +0200 |
| commit | 3159f943aafdbacb2f94c38fdaadabf2bbde2a14 (patch) | |
| tree | 7e06823a1ab7e90774535d17a217a939bdddda3b /scripts/kconfig | |
| parent | idr: Permit any valid kernel pointer to be stored (diff) | |
| download | linux-3159f943aafdbacb2f94c38fdaadabf2bbde2a14.tar.xz linux-3159f943aafdbacb2f94c38fdaadabf2bbde2a14.zip | |
xarray: Replace exceptional entries
Introduce xarray value entries and tagged pointers to replace radix
tree exceptional entries. This is a slight change in encoding to allow
the use of an extra bit (we can now store BITS_PER_LONG - 1 bits in a
value entry). It is also a change in emphasis; exceptional entries are
intimidating and different. As the comment explains, you can choose
to store values or pointers in the xarray and they are both first-class
citizens.
Signed-off-by: Matthew Wilcox <willy@infradead.org>
Reviewed-by: Josef Bacik <jbacik@fb.com>
Diffstat (limited to 'scripts/kconfig')
0 files changed, 0 insertions, 0 deletions