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From: Byungchul Park <byungchul.park@lge.com>
To: torvalds@linux-foundation.org
Cc: damien.lemoal@opensource.wdc.com, linux-ide@vger.kernel.org,
	adilger.kernel@dilger.ca, linux-ext4@vger.kernel.org,
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Subject: [PATCH v3 20/21] dept: Add nocheck version of init_completion()
Date: Mon, 28 Feb 2022 18:56:59 +0900	[thread overview]
Message-ID: <1646042220-28952-21-git-send-email-byungchul.park@lge.com> (raw)
In-Reply-To: <1646042220-28952-1-git-send-email-byungchul.park@lge.com>

For completions who don't want to get tracked by Dept, added
init_completion_nocheck() to disable Dept on it.

Signed-off-by: Byungchul Park <byungchul.park@lge.com>
---
 include/linux/completion.h | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/include/linux/completion.h b/include/linux/completion.h
index a1ad5a8..9bd3bc9 100644
--- a/include/linux/completion.h
+++ b/include/linux/completion.h
@@ -30,6 +30,7 @@ struct completion {
 };
 
 #ifdef CONFIG_DEPT
+#define dept_wfc_nocheck(m)			dept_map_nocheck(m)
 #define dept_wfc_init(m, k, s, n)		dept_map_init(m, k, s, n)
 #define dept_wfc_reinit(m)			dept_map_reinit(m)
 #define dept_wfc_wait(m, ip)						\
@@ -41,6 +42,7 @@ struct completion {
 #define dept_wfc_enter(m, ip)			dept_ecxt_enter(m, 1UL, ip, "completion_context_enter", "complete", 0)
 #define dept_wfc_exit(m, ip)			dept_ecxt_exit(m, ip)
 #else
+#define dept_wfc_nocheck(m)			do { } while (0)
 #define dept_wfc_init(m, k, s, n)		do { (void)(n); (void)(k); } while (0)
 #define dept_wfc_reinit(m)			do { } while (0)
 #define dept_wfc_wait(m, ip)			do { } while (0)
@@ -55,10 +57,11 @@ struct completion {
 #define WFC_DEPT_MAP_INIT(work)
 #endif
 
+#define init_completion_nocheck(x) __init_completion(x, NULL, #x, false)
 #define init_completion(x)					\
 	do {							\
 		static struct dept_key __dkey;			\
-		__init_completion(x, &__dkey, #x);		\
+		__init_completion(x, &__dkey, #x, true);	\
 	} while (0)
 
 #define init_completion_map(x, m) init_completion(x)
@@ -117,10 +120,15 @@ static inline void complete_release(struct completion *x) {}
  */
 static inline void __init_completion(struct completion *x,
 				     struct dept_key *dkey,
-				     const char *name)
+				     const char *name, bool check)
 {
 	x->done = 0;
-	dept_wfc_init(&x->dmap, dkey, 0, name);
+
+	if (check)
+		dept_wfc_init(&x->dmap, dkey, 0, name);
+	else
+		dept_wfc_nocheck(&x->dmap);
+
 	init_swait_queue_head(&x->wait);
 }
 
-- 
1.9.1


  parent reply	other threads:[~2022-02-28  9:58 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-02-28  9:56 [PATCH v3 00/21] DEPT(Dependency Tracker) Byungchul Park
2022-02-28  9:56 ` [PATCH v3 01/21] llist: Move llist_{head,node} definition to types.h Byungchul Park
2022-02-28  9:56 ` [PATCH v3 02/21] dept: Implement Dept(Dependency Tracker) Byungchul Park
2022-02-28  9:56 ` [PATCH v3 03/21] dept: Embed Dept data in Lockdep Byungchul Park
2022-02-28  9:56 ` [PATCH v3 04/21] dept: Add a API for skipping dependency check temporarily Byungchul Park
2022-02-28  9:56 ` [PATCH v3 05/21] dept: Apply Dept to spinlock Byungchul Park
2022-02-28  9:56 ` [PATCH v3 06/21] dept: Apply Dept to mutex families Byungchul Park
2022-02-28  9:56 ` [PATCH v3 07/21] dept: Apply Dept to rwlock Byungchul Park
2022-02-28  9:56 ` [PATCH v3 08/21] dept: Apply Dept to wait_for_completion()/complete() Byungchul Park
2022-02-28  9:56 ` [PATCH v3 09/21] dept: Apply Dept to seqlock Byungchul Park
2022-02-28  9:56 ` [PATCH v3 10/21] dept: Apply Dept to rwsem Byungchul Park
2022-02-28  9:56 ` [PATCH v3 11/21] dept: Add proc knobs to show stats and dependency graph Byungchul Park
2022-02-28  9:56 ` [PATCH v3 12/21] dept: Introduce split map concept and new APIs for them Byungchul Park
2022-02-28  9:56 ` [PATCH v3 13/21] dept: Apply Dept to wait/event of PG_{locked,writeback} Byungchul Park
2022-02-28  9:56 ` [PATCH v3 14/21] dept: Apply SDT to swait Byungchul Park
2022-02-28  9:56 ` [PATCH v3 15/21] dept: Apply SDT to wait(waitqueue) Byungchul Park
2022-02-28  9:56 ` [PATCH v3 16/21] locking/lockdep, cpu/hotplus: Use a weaker annotation in AP thread Byungchul Park
2022-02-28  9:56 ` [PATCH v3 17/21] dept: Distinguish each syscall context from another Byungchul Park
2022-02-28  9:56 ` [PATCH v3 18/21] dept: Distinguish each work " Byungchul Park
2022-02-28  9:56 ` [PATCH v3 19/21] dept: Disable Dept within the wait_bit layer by default Byungchul Park
2022-02-28  9:56 ` Byungchul Park [this message]
2022-02-28  9:57 ` [PATCH v3 21/21] dept: Disable Dept on struct crypto_larval's completion for now Byungchul Park
2022-03-02  4:36 ` [PATCH v3 00/21] DEPT(Dependency Tracker) Hyeonggon Yoo
2022-03-02  4:53   ` Hyeonggon Yoo
2022-03-03  0:18     ` Byungchul Park
2022-03-03  8:03       ` Hyeonggon Yoo
2022-03-03  9:48         ` Byungchul Park
2022-03-03 12:38           ` Hyeonggon Yoo
2022-03-04  0:28             ` Byungchul Park
2022-03-03  2:22   ` Byungchul Park

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