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| author |   Matthew Wilcox <willy@linux.intel.com> | 2016-12-14 15:08:58 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2016-12-14 16:04:10 -0800 |
| commit | 175542f575723e43f897ddb09d0011c13f7cf0ec (patch) | |
| tree | c9373e49ab8636db5a48f7017f4e942486acf1ef /scripts | |
| parent | radix-tree: delete radix_tree_range_tag_if_tagged() (diff) | |
| download | linux-dev-175542f575723e43f897ddb09d0011c13f7cf0ec.tar.xz linux-dev-175542f575723e43f897ddb09d0011c13f7cf0ec.zip | |
radix-tree: add radix_tree_join
This new function allows for the replacement of many smaller entries in
the radix tree with one larger multiorder entry. From the point of view
of an RCU walker, they may see a mixture of the smaller entries and the
large entry during the same walk, but they will never see NULL for an
index which was populated before the join.
Link: http://lkml.kernel.org/r/1480369871-5271-58-git-send-email-mawilcox@linuxonhyperv.com
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Tested-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Konstantin Khlebnikov <koct9i@gmail.com>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Cc: Matthew Wilcox <mawilcox@microsoft.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'scripts')
0 files changed, 0 insertions, 0 deletions