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author | Matthew Wilcox <mawilcox@microsoft.com> | 2016-12-14 15:08:17 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-12-14 16:04:09 -0800 |
commit | af1c5cca9030f1bb935463ceb8274bfe82719128 (patch) | |
tree | 3752e975891dbb415883e808fd1d5848d7441f5e /tools/testing/radix-tree/tag_check.c | |
parent | cfa40bcfd6fed7010b1633bf127ed8571d3b607e (diff) | |
download | op-kernel-dev-af1c5cca9030f1bb935463ceb8274bfe82719128.zip op-kernel-dev-af1c5cca9030f1bb935463ceb8274bfe82719128.tar.gz |
radix tree test suite: use rcu_barrier
Calling rcu_barrier() allows all of the rcu-freed memory to be actually
returned to the pool, and allows nr_allocated to return to 0. As well
as allowing diffs between runs to be more useful, it also lets us
pinpoint leaks more effectively.
Link: http://lkml.kernel.org/r/1480369871-5271-44-git-send-email-mawilcox@linuxonhyperv.com
Signed-off-by: Matthew Wilcox <mawilcox@microsoft.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 'tools/testing/radix-tree/tag_check.c')
-rw-r--r-- | tools/testing/radix-tree/tag_check.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/tools/testing/radix-tree/tag_check.c b/tools/testing/radix-tree/tag_check.c index b0ac057..186f6e4 100644 --- a/tools/testing/radix-tree/tag_check.c +++ b/tools/testing/radix-tree/tag_check.c @@ -51,6 +51,7 @@ void simple_checks(void) verify_tag_consistency(&tree, 1); printf("before item_kill_tree: %d allocated\n", nr_allocated); item_kill_tree(&tree); + rcu_barrier(); printf("after item_kill_tree: %d allocated\n", nr_allocated); } @@ -331,12 +332,16 @@ void tag_check(void) single_check(); extend_checks(); contract_checks(); + rcu_barrier(); printf("after extend_checks: %d allocated\n", nr_allocated); __leak_check(); leak_check(); + rcu_barrier(); printf("after leak_check: %d allocated\n", nr_allocated); simple_checks(); + rcu_barrier(); printf("after simple_checks: %d allocated\n", nr_allocated); thrash_tags(); + rcu_barrier(); printf("after thrash_tags: %d allocated\n", nr_allocated); } |