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| author |   Boqun Feng <boqun.feng@gmail.com> | 2020-08-07 15:42:32 +0800 |
|---|---|---|
| committer |   Peter Zijlstra <peterz@infradead.org> | 2020-08-26 12:42:06 +0200 |
| commit | d4f200e579e96051f1f081f795820787826eb234 (patch) | |
| tree | aa3051bc538092205afceffe8c9933e4b8da7a1a /kernel/locking | |
| parent | lockdep: Add recursive read locks into dependency graph (diff) | |
| download | linux-dev-d4f200e579e96051f1f081f795820787826eb234.tar.xz linux-dev-d4f200e579e96051f1f081f795820787826eb234.zip | |
lockdep/selftest: Add a R-L/L-W test case specific to chain cache behavior
As our chain cache doesn't differ read/write locks, so even we can
detect a read-lock/lock-write deadlock in check_noncircular(), we can
still be fooled if a read-lock/lock-read case(which is not a deadlock)
comes first.
So introduce this test case to test specific to the chain cache behavior
on detecting recursive read lock related deadlocks.
Signed-off-by: Boqun Feng <boqun.feng@gmail.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20200807074238.1632519-14-boqun.feng@gmail.com
Diffstat (limited to 'kernel/locking')
0 files changed, 0 insertions, 0 deletions