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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2014-07-08 12:19:54 +1000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2014-07-08 12:36:28 +1000 |
| commit | e74abeb3c34dcbfcf0d1b3c4462178d9c543c3a9 (patch) | |
| tree | f1d47261313c381bbba3170b86a17d9fe909073e /include/lock.h | |
| parent | be5a949949cf116025e1c018cd26c4707c669073 (diff) | |
| download | skiboot-e74abeb3c34dcbfcf0d1b3c4462178d9c543c3a9.zip skiboot-e74abeb3c34dcbfcf0d1b3c4462178d9c543c3a9.tar.gz skiboot-e74abeb3c34dcbfcf0d1b3c4462178d9c543c3a9.tar.bz2 | |
lock: Add helper to check if this CPU is already holding a lock
For debug purposes essentially
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'include/lock.h')
| -rw-r--r-- | include/lock.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/lock.h b/include/lock.h index f24e769..823160a 100644 --- a/include/lock.h +++ b/include/lock.h @@ -69,6 +69,8 @@ extern bool try_lock(struct lock *l); extern void lock(struct lock *l); extern void unlock(struct lock *l); +extern bool lock_held_by_me(struct lock *l); + /* The debug output can happen while the FSP lock, so we need some kind * of recursive lock support here. I don't want all locks to be recursive * though, thus the caller need to explicitly call lock_recursive which |