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generic/338: Add mmap race test

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Add test which spawns two threads racing to write to file via mmap and
checks the result. This is mainly interesting to uncover races in DAX
fault handling.

Signed-off-by: Jan Kara <jack@suse.cz>
Acked-by: Brian Boylston <brian.boylston@hpe.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
This commit is contained in:
Jan Kara
2016-04-05 11:44:05 +10:00
committed by Dave Chinner
parent c6de4991a1
commit 450d833eba
5 changed files with 478 additions and 2 deletions
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tests/generic/340.out
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QA output created by 340
INFO: zero-filled test...
INFO: sz = 1048576
INFO: thread 0 created
INFO: thread 1 created
INFO: 0 error(s) detected
INFO: posix_fallocate test...
INFO: sz = 1048576
INFO: thread 0 created
INFO: thread 1 created
INFO: 0 error(s) detected
INFO: fallocate test...
INFO: sz = 1048576
INFO: thread 0 created
INFO: thread 1 created
INFO: 0 error(s) detected
INFO: ftruncate test...
INFO: sz = 1048576
INFO: thread 0 created
INFO: thread 1 created
INFO: 0 error(s) detected
INFO: zero-filled test...
INFO: sz = 16777216
INFO: thread 0 created
INFO: thread 1 created
INFO: 0 error(s) detected
INFO: posix_fallocate test...
INFO: sz = 16777216
INFO: thread 0 created
INFO: thread 1 created
INFO: 0 error(s) detected
INFO: fallocate test...
INFO: sz = 16777216
INFO: thread 0 created
INFO: thread 1 created
INFO: 0 error(s) detected
INFO: ftruncate test...
INFO: sz = 16777216
INFO: thread 0 created
INFO: thread 1 created
INFO: 0 error(s) detected
INFO: zero-filled test...
INFO: sz = 268435456
INFO: thread 0 created
INFO: thread 1 created
INFO: 0 error(s) detected
INFO: posix_fallocate test...
INFO: sz = 268435456
INFO: thread 0 created
INFO: thread 1 created
INFO: 0 error(s) detected
INFO: fallocate test...
INFO: sz = 268435456
INFO: thread 0 created
INFO: thread 1 created
INFO: 0 error(s) detected
INFO: ftruncate test...
INFO: sz = 268435456
INFO: thread 0 created
INFO: thread 1 created
INFO: 0 error(s) detected