From: Masami Hiramatsu <mhiramat@kernel.org>
To: linux-kernel@vger.kernel.org, Peter Zijlstra <peterz@infradead.org>
Cc: Eddy_Wu@trendmicro.com, x86@kernel.org, davem@davemloft.net,
rostedt@goodmis.org, naveen.n.rao@linux.ibm.com,
anil.s.keshavamurthy@intel.com, linux-arch@vger.kernel.org,
cameron@moodycamel.com, oleg@redhat.com, will@kernel.org,
paulmck@kernel.org, mhiramat@kernel.org
Subject: [PATCH v4 17/23] llist: Add nonatomic __llist_add()
Date: Fri, 28 Aug 2020 21:29:44 +0900 [thread overview]
Message-ID: <159861778403.992023.16294174469836026964.stgit@devnote2> (raw)
In-Reply-To: <159861759775.992023.12553306821235086809.stgit@devnote2>
From: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
---
drivers/gpu/drm/i915/i915_request.c | 6 ------
include/linux/llist.h | 15 +++++++++++++++
2 files changed, 15 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_request.c b/drivers/gpu/drm/i915/i915_request.c
index 0b2fe55e6194..0e851b925c8c 100644
--- a/drivers/gpu/drm/i915/i915_request.c
+++ b/drivers/gpu/drm/i915/i915_request.c
@@ -357,12 +357,6 @@ void i915_request_retire_upto(struct i915_request *rq)
} while (i915_request_retire(tmp) && tmp != rq);
}
-static void __llist_add(struct llist_node *node, struct llist_head *head)
-{
- node->next = head->first;
- head->first = node;
-}
-
static struct i915_request * const *
__engine_active(struct intel_engine_cs *engine)
{
diff --git a/include/linux/llist.h b/include/linux/llist.h
index 2e9c7215882b..c17893dcc591 100644
--- a/include/linux/llist.h
+++ b/include/linux/llist.h
@@ -197,6 +197,16 @@ static inline struct llist_node *llist_next(struct llist_node *node)
extern bool llist_add_batch(struct llist_node *new_first,
struct llist_node *new_last,
struct llist_head *head);
+
+static inline bool __llist_add_batch(struct llist_node *new_first,
+ struct llist_node *new_last,
+ struct llist_head *head)
+{
+ new_last->next = head->first;
+ head->first = new_first;
+ return new_last->next == NULL;
+}
+
/**
* llist_add - add a new entry
* @new: new entry to be added
@@ -209,6 +219,11 @@ static inline bool llist_add(struct llist_node *new, struct llist_head *head)
return llist_add_batch(new, new, head);
}
+static inline bool __llist_add(struct llist_node *new, struct llist_head *head)
+{
+ return __llist_add_batch(new, new, head);
+}
+
/**
* llist_del_all - delete all entries from lock-less list
* @head: the head of lock-less list to delete all entries
next prev parent reply other threads:[~2020-08-28 12:32 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-28 12:26 [PATCH v4 00/23] kprobes: Unify kretprobe trampoline handlers and make kretprobe lockless Masami Hiramatsu
2020-08-28 12:26 ` [PATCH v4 01/23] kprobes: Add generic kretprobe trampoline handler Masami Hiramatsu
2020-08-28 12:27 ` [PATCH v4 02/23] x86/kprobes: Use " Masami Hiramatsu
2020-08-28 12:27 ` [PATCH v4 03/23] arm: kprobes: " Masami Hiramatsu
2020-08-28 12:27 ` [PATCH v4 04/23] arm64: " Masami Hiramatsu
2020-08-28 13:31 ` Mark Rutland
2020-08-28 13:37 ` peterz
2020-08-28 13:48 ` Mark Rutland
2020-08-28 13:58 ` Masami Hiramatsu
2020-08-28 12:27 ` [PATCH v4 05/23] arc: " Masami Hiramatsu
2020-08-28 12:27 ` [PATCH v4 06/23] csky: " Masami Hiramatsu
2020-08-28 12:27 ` [PATCH v4 07/23] ia64: " Masami Hiramatsu
2020-08-28 12:28 ` [PATCH v4 08/23] mips: " Masami Hiramatsu
2020-08-28 12:28 ` [PATCH v4 09/23] parisc: " Masami Hiramatsu
2020-08-28 12:28 ` [PATCH v4 10/23] powerpc: " Masami Hiramatsu
2020-08-28 12:28 ` [PATCH v4 11/23] s390: " Masami Hiramatsu
2020-08-28 12:28 ` [PATCH v4 12/23] sh: " Masami Hiramatsu
2020-08-28 12:29 ` [PATCH v4 13/23] sparc: " Masami Hiramatsu
2020-08-28 12:29 ` [PATCH v4 14/23] kprobes: Remove NMI context check Masami Hiramatsu
2020-08-28 12:29 ` [PATCH v4 15/23] kprobes: Free kretprobe_instance with rcu callback Masami Hiramatsu
2020-08-28 12:29 ` [PATCH v4 16/23] kprobes: Make local used functions static Masami Hiramatsu
2020-08-28 12:29 ` Masami Hiramatsu [this message]
2020-08-28 12:29 ` [PATCH v4 18/23] sched: Fix try_invoke_on_locked_down_task() semantics Masami Hiramatsu
2020-08-29 2:01 ` Masami Hiramatsu
2020-08-29 7:30 ` peterz
2020-08-29 17:31 ` Paul E. McKenney
2020-08-28 12:30 ` [PATCH v4 19/23] kprobes: Remove kretprobe hash Masami Hiramatsu
2020-08-28 18:37 ` Masami Hiramatsu
2020-08-28 19:02 ` peterz
2020-08-28 19:32 ` Eddy_Wu
2020-08-28 20:29 ` Peter Zijlstra
2020-08-29 1:23 ` Masami Hiramatsu
2020-08-28 12:30 ` [PATCH v4 20/23] [RFC] kprobes: Remove task scan for updating kretprobe_instance Masami Hiramatsu
2020-08-28 12:52 ` peterz
2020-08-28 15:10 ` Masami Hiramatsu
2020-08-28 15:18 ` peterz
2020-08-28 16:01 ` Masami Hiramatsu
2020-08-28 12:30 ` [PATCH v4 21/23] asm-generic/atomic: Add try_cmpxchg() fallbacks Masami Hiramatsu
2020-08-28 12:30 ` [PATCH v4 22/23] freelist: Lock less freelist Masami Hiramatsu
2020-08-28 12:30 ` [PATCH v4 23/23] kprobes: Replace rp->free_instance with freelist Masami Hiramatsu
2020-08-28 12:37 ` [PATCH v4 00/23] kprobes: Unify kretprobe trampoline handlers and make kretprobe lockless Masami Hiramatsu
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