From 72b28077a20a6a1f14494602466c219241f45d89 Mon Sep 17 00:00:00 2001 From: Liu Bo Date: Fri, 5 Jan 2018 12:51:12 -0700 Subject: Btrfs: add extent map selftests We've observed that btrfs_get_extent() and merge_extent_mapping() could return -EEXIST in several cases, and they are caused by some racy condition, e.g dio read vs dio write, which makes the problem very tricky to reproduce. This adds extent map selftests in order to simulate those racy situations. Signed-off-by: Liu Bo Reviewed-by: Josef Bacik [ minor string adjustments ] Signed-off-by: David Sterba --- fs/btrfs/tests/btrfs-tests.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'fs/btrfs/tests/btrfs-tests.c') diff --git a/fs/btrfs/tests/btrfs-tests.c b/fs/btrfs/tests/btrfs-tests.c index d3f25376a0f8..9786d8cd0aa6 100644 --- a/fs/btrfs/tests/btrfs-tests.c +++ b/fs/btrfs/tests/btrfs-tests.c @@ -277,6 +277,9 @@ int btrfs_run_sanity_tests(void) goto out; } } + ret = btrfs_test_extent_map(); + if (ret) + goto out; out: btrfs_destroy_test_fs(); return ret; -- cgit v1.2.3