From: Yuyang Du <duyuyang@gmail.com>
To: peterz@infradead.org, will.deacon@arm.com, mingo@kernel.org
Cc: bvanassche@acm.org, ming.lei@redhat.com,
linux-kernel@vger.kernel.org, Yuyang Du <duyuyang@gmail.com>
Subject: [PATCH v2 11/19] locking/lockdep: Remove unused argument in validate_chain()
Date: Mon, 18 Mar 2019 16:57:25 +0800 [thread overview]
Message-ID: <20190318085733.3143-12-duyuyang@gmail.com> (raw)
In-Reply-To: <20190318085733.3143-1-duyuyang@gmail.com>
Its lockdep_map argument is not used, remove it.
Signed-off-by: Yuyang Du <duyuyang@gmail.com>
---
kernel/locking/lockdep.c | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)
diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c
index e8871f2..dcff644 100644
--- a/kernel/locking/lockdep.c
+++ b/kernel/locking/lockdep.c
@@ -2131,8 +2131,7 @@ static void print_deadlock_scenario(struct held_lock *nxt,
* Returns: 0 on deadlock detected, 1 on OK, 2 on recursive read
*/
static int
-check_deadlock(struct task_struct *curr, struct held_lock *next,
- struct lockdep_map *next_instance, int read)
+check_deadlock(struct task_struct *curr, struct held_lock *next, int read)
{
struct held_lock *prev;
struct held_lock *nest = NULL;
@@ -2695,8 +2694,9 @@ static inline int lookup_chain_cache_add(struct task_struct *curr,
return 1;
}
-static int validate_chain(struct task_struct *curr, struct lockdep_map *lock,
- struct held_lock *hlock, int chain_head, u64 chain_key)
+static int validate_chain(struct task_struct *curr,
+ struct held_lock *hlock,
+ int chain_head, u64 chain_key)
{
/*
* Trylock needs to maintain the stack of held locks, but it
@@ -2722,7 +2722,7 @@ static int validate_chain(struct task_struct *curr, struct lockdep_map *lock,
* any of these scenarios could lead to a deadlock. If
* All validations
*/
- int ret = check_deadlock(curr, hlock, lock, hlock->read);
+ int ret = check_deadlock(curr, hlock, hlock->read);
if (!ret)
return 0;
@@ -2753,7 +2753,7 @@ static int validate_chain(struct task_struct *curr, struct lockdep_map *lock,
}
#else
static inline int validate_chain(struct task_struct *curr,
- struct lockdep_map *lock, struct held_lock *hlock,
+ struct held_lock *hlock,
int chain_head, u64 chain_key)
{
return 1;
@@ -3730,7 +3730,7 @@ static int __lock_acquire(struct lockdep_map *lock, unsigned int subclass,
WARN_ON_ONCE(!hlock_class(hlock)->key);
}
- if (!validate_chain(curr, lock, hlock, chain_head, chain_key))
+ if (!validate_chain(curr, hlock, chain_head, chain_key))
return 0;
curr->curr_chain_key = chain_key;
--
1.8.3.1
next prev parent reply other threads:[~2019-03-18 8:58 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-18 8:57 [PATCH v2 00/19] locking/lockdep: Add comments and make some code Yuyang Du
2019-03-18 8:57 ` [PATCH v2 01/19] locking/lockdep: Change all print_*() return type to void Yuyang Du
2019-03-18 9:45 ` Joe Perches
2019-03-19 3:28 ` Yuyang Du
2019-03-19 16:30 ` Bart Van Assche
2019-03-18 8:57 ` [PATCH v2 02/19] locking/lockdep: Add description and explanation in lockdep design doc Yuyang Du
2019-03-18 8:57 ` [PATCH v2 03/19] locking/lockdep: Adjust lock usage bit character checks Yuyang Du
2019-03-18 8:57 ` [PATCH v2 04/19] locking/lockdep: Remove useless conditional macro Yuyang Du
2019-03-18 8:57 ` [PATCH v2 05/19] locking/lockdep: Adjust indents for function definitions Yuyang Du
2019-03-19 16:33 ` Bart Van Assche
2019-03-19 16:36 ` Peter Zijlstra
2019-03-18 8:57 ` [PATCH v2 06/19] locking/lockdep: Print the right depth for chain key colission Yuyang Du
2019-03-18 8:57 ` [PATCH v2 07/19] locking/lockdep: Update obsolete struct field description Yuyang Du
2019-03-19 16:35 ` Bart Van Assche
2019-03-19 16:44 ` Peter Zijlstra
2019-03-18 8:57 ` [PATCH v2 08/19] locking/lockdep: Use lockdep_init_task for task initiation consistently Yuyang Du
2019-03-18 8:57 ` [PATCH v2 09/19] locking/lockdep: Define INITIAL_CHAIN_KEY for chain keys to start with Yuyang Du
2019-03-18 8:57 ` [PATCH v2 10/19] locking/lockdep: Change the range of class_idx in held_lock struct Yuyang Du
2019-03-18 8:57 ` Yuyang Du [this message]
2019-03-19 16:45 ` [PATCH v2 11/19] locking/lockdep: Remove unused argument in validate_chain() Bart Van Assche
2019-03-18 8:57 ` [PATCH v2 12/19] locking/lockdep: Update comment Yuyang Du
2019-03-18 8:57 ` [PATCH v2 13/19] locking/lockdep: Remove unnecessary function pointer argument Yuyang Du
2019-03-19 16:48 ` Bart Van Assche
2019-03-18 8:57 ` [PATCH v2 14/19] locking/lockdep: Change type of the element field in circular_queue Yuyang Du
2019-03-19 16:50 ` Bart Van Assche
2019-03-19 16:51 ` Bart Van Assche
2019-03-18 8:57 ` [PATCH v2 15/19] locking/lockdep: Remove __cq_empty() Yuyang Du
2019-03-19 16:54 ` Bart Van Assche
2019-03-20 2:30 ` Yuyang Du
2019-03-18 8:57 ` [PATCH v2 16/19] locking/lockdep: Use function pointer to avoid constant checks Yuyang Du
2019-03-19 16:56 ` Bart Van Assche
2019-03-18 8:57 ` [PATCH v2 17/19] locking/lockdep: Combine check_noncircular and check_redundant Yuyang Du
2019-03-18 8:57 ` [PATCH v2 18/19] locking/lockdep: Update comments on dependency search Yuyang Du
2019-03-18 8:57 ` [PATCH v2 19/19] locking/lockdep: Change if to else-if when checking bfs errors Yuyang Du
2019-03-19 16:29 ` Bart Van Assche
2019-03-19 17:19 ` Joe Perches
2019-03-20 2:02 ` Yuyang Du
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