diff options
| author | Matthew Wilcox <willy@linux.intel.com> | 2016-05-21 02:03:10 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-05-21 02:58:30 +0200 |
| commit | c12e51b07b3ac4c188fd91a82f96840fdb9cca6f (patch) | |
| tree | 13f432c3419297b6994905f9bb2eb9b934bc614d /include | |
| parent | radix-tree: split node->path into offset and height (diff) | |
| download | linux-c12e51b07b3ac4c188fd91a82f96840fdb9cca6f.tar.xz linux-c12e51b07b3ac4c188fd91a82f96840fdb9cca6f.zip | |
radix-tree: replace node->height with node->shift
node->shift represents the shift necessary for looking in the slots
array at this level. It is equal to the old (node->height - 1) *
RADIX_TREE_MAP_SHIFT.
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Reviewed-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Cc: Konstantin Khlebnikov <koct9i@gmail.com>
Cc: Kirill Shutemov <kirill.shutemov@linux.intel.com>
Cc: Jan Kara <jack@suse.com>
Cc: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/radix-tree.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/radix-tree.h b/include/linux/radix-tree.h index 2d2ad9d685a3..037458257e12 100644 --- a/include/linux/radix-tree.h +++ b/include/linux/radix-tree.h @@ -89,7 +89,7 @@ static inline int radix_tree_is_indirect_ptr(void *ptr) #define RADIX_TREE_COUNT_MASK ((1UL << RADIX_TREE_COUNT_SHIFT) - 1) struct radix_tree_node { - unsigned char height; /* From the bottom */ + unsigned char shift; /* Bits remaining in each slot */ unsigned char offset; /* Slot offset in parent */ unsigned int count; union { |