Messages in this thread Patch in this message | | | From | Yuyang Du <> | Subject | [PATCH v2 17/23] locking/lockdep: Remove redundant argument in check_deadlock | Date | Mon, 6 May 2019 16:19:33 +0800 |
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In check_deadlock(), the third argument read comes from the second argument hlock so that it can be removed. No functional change.
Signed-off-by: Yuyang Du <duyuyang@gmail.com> --- kernel/locking/lockdep.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c index 7bd62e2..67b6a76 100644 --- a/kernel/locking/lockdep.c +++ b/kernel/locking/lockdep.c @@ -2241,7 +2241,7 @@ static inline void inc_chains(void) * Returns: 0 on deadlock detected, 1 on OK, 2 on recursive read */ static int -check_deadlock(struct task_struct *curr, struct held_lock *next, int read) +check_deadlock(struct task_struct *curr, struct held_lock *next) { struct held_lock *prev; struct held_lock *nest = NULL; @@ -2260,7 +2260,7 @@ static inline void inc_chains(void) * Allow read-after-read recursion of the same * lock class (i.e. read_lock(lock)+read_lock(lock)): */ - if ((read == 2) && prev->read) + if ((next->read == 2) && prev->read) return 2; /* @@ -2834,7 +2834,7 @@ static int validate_chain(struct task_struct *curr, * The simple case: does the current hold the same lock * already? */ - int ret = check_deadlock(curr, hlock, hlock->read); + int ret = check_deadlock(curr, hlock); if (!ret) return 0; -- 1.8.3.1
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