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| author | Byungchul Park <byungchul.park@lge.com> | 2017-08-14 09:00:52 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2017-08-14 12:52:17 +0200 |
| commit | 907dc16d7e23ec81a126c9585435494fa1b3a4b7 (patch) | |
| tree | 31b53da542b0fa6cb863c06a39daeed055372acb /kernel/pid.c | |
| parent | locking/lockdep: Add a comment about crossrelease_hist_end() in lockdep_sys_e... (diff) | |
| download | linux-907dc16d7e23ec81a126c9585435494fa1b3a4b7.tar.xz linux-907dc16d7e23ec81a126c9585435494fa1b3a4b7.zip | |
locking/lockdep: Fix the rollback and overwrite detection logic in crossrelease
As Boqun Feng pointed out, current->hist_id should be aligned with the
latest valid xhlock->hist_id so that hist_id_save[] storing current->hist_id
can be comparable with xhlock->hist_id. Fix it.
Additionally, the condition for overwrite-detection should be the
opposite. Fix the code and the comments as well.
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Reported-by: Boqun Feng <boqun.feng@gmail.com>
Signed-off-by: Byungchul Park <byungchul.park@lge.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: akpm@linux-foundation.org
Cc: kernel-team@lge.com
Cc: kirill@shutemov.name
Cc: linux-mm@kvack.org
Cc: npiggin@gmail.com
Cc: walken@google.com
Cc: willy@infradead.org
Link: http://lkml.kernel.org/r/1502694052-16085-3-git-send-email-byungchul.park@lge.com
[ Improve the comments some more. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/pid.c')
0 files changed, 0 insertions, 0 deletions