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author | Liam R. Howlett <Liam.Howlett@Oracle.com> | 2022-09-06 22:48:45 +0300 |
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committer | Andrew Morton <akpm@linux-foundation.org> | 2022-09-27 05:46:14 +0300 |
commit | e15e06a8392321a19d8ebdbdd7643b7fa8874c17 (patch) | |
tree | db9c8971405837eb23f7a370ecfa27975eac2305 /mm/nommu.c | |
parent | c349fa1818d405c8d9ab77ddcaff919189a0b346 (diff) | |
download | linux-e15e06a8392321a19d8ebdbdd7643b7fa8874c17.tar.xz |
lib/test_maple_tree: add testing for maple tree
This is a test suite that uses the radix test infrastructure. It has been
split into its own commit to allow for easier review of the maple tree
code.
The testing includes:
- Allocation of nodes
- gfp flag allocation checks
- Expansion & contraction of tree
- preallocation checks
- tree navigation by next/prev
- tree navigation by iterators (mas_for_each, etc)
- Number of nodes for a given number of entries
- Generic tree construction tests
- Addition and removal of entries in forward and reverse numerical indexes
- gap searching both forward and reverse
- Combining gaps by overwriting entries in different ways
- splitting right-most node
- splitting left-most node
- overwriting multiple slots
- overwriting across different levels of the tree
- overwriting the middle of a tree
- causing a 3-way split up to the root by overwriting the last slot and
first slot of different nodes and spanning different levels
- RCU stress testing of the tree with threads
- Duplication of the tree by entry count
- Tests which were generated by fuzzers have been added.
- A large number of tests which come from recording crashing in a VM and
reconstructing the tree (see check_erase2_set())
Link: https://lkml.kernel.org/r/20220906194824.2110408-8-Liam.Howlett@oracle.com
Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Tested-by: Yu Zhao <yuzhao@google.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Cc: SeongJae Park <sj@kernel.org>
Cc: Sven Schnelle <svens@linux.ibm.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/nommu.c')
0 files changed, 0 insertions, 0 deletions