From: Peter Zijlstra <peterz@infradead.org>
To: linux-kernel@vger.kernel.org, mhiramat@kernel.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, peterz@infradead.org
Subject: [RFC][PATCH 1/7] llist: Add nonatomic __llist_add()
Date: Thu, 27 Aug 2020 18:12:38 +0200 [thread overview]
Message-ID: <20200827161754.241309505@infradead.org> (raw)
In-Reply-To: 20200827161237.889877377@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(-)
--- 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 i91
} 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)
{
--- a/include/linux/llist.h
+++ b/include/linux/llist.h
@@ -197,6 +197,16 @@ static inline struct llist_node *llist_n
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 llis
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:[~2020-08-27 16:21 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-27 16:12 [RFC][PATCH 0/7] kprobes: Make kretprobes lockless Peter Zijlstra
2020-08-27 16:12 ` Peter Zijlstra [this message]
2020-08-27 16:12 ` [RFC][PATCH 2/7] sched: Fix try_invoke_on_locked_down_task() semantics Peter Zijlstra
2020-08-27 16:12 ` [RFC][PATCH 3/7] kprobes: Remove kretprobe hash Peter Zijlstra
2020-08-27 18:00 ` Masami Hiramatsu
2020-08-28 8:44 ` peterz
2020-08-28 9:07 ` Masami Hiramatsu
2020-08-28 4:44 ` Masami Hiramatsu
2020-08-28 13:11 ` Eddy_Wu
2020-08-28 13:38 ` peterz
2020-08-28 13:51 ` Masami Hiramatsu
2020-08-28 13:58 ` peterz
2020-08-28 14:19 ` Masami Hiramatsu
2020-08-28 14:11 ` Eddy_Wu
2020-08-28 14:19 ` peterz
2020-08-28 14:41 ` Masami Hiramatsu
2020-08-28 14:49 ` Masami Hiramatsu
2020-08-27 16:12 ` [RFC][PATCH 4/7] kprobe: Dont kfree() from breakpoint context Peter Zijlstra
2020-08-27 16:12 ` [RFC][PATCH 5/7] asm-generic/atomic: Add try_cmpxchg() fallbacks Peter Zijlstra
2020-08-27 16:12 ` [RFC][PATCH 6/7] freelist: Lock less freelist Peter Zijlstra
2020-08-27 16:37 ` peterz
[not found] ` <CAFCw3doX6KK5DwpG_OB331Mdw8uYeVqn8YPTjKh_a-m7ZB9+3A@mail.gmail.com>
2020-08-27 16:56 ` peterz
2020-08-27 17:00 ` Cameron
2020-08-27 19:08 ` Boqun Feng
2020-08-27 19:57 ` Cameron
2020-08-28 1:34 ` Boqun Feng
2020-08-28 4:03 ` Lai Jiangshan
2020-08-28 14:46 ` Oleg Nesterov
2020-08-28 15:29 ` peterz
2020-08-29 3:05 ` Cameron
2020-08-27 16:12 ` [RFC][PATCH 7/7] kprobes: Replace rp->free_instance with freelist Peter Zijlstra
2020-08-28 8:48 ` peterz
2020-08-28 9:13 ` Masami Hiramatsu
2020-08-28 9:18 ` peterz
2020-08-28 10:44 ` Masami Hiramatsu
2020-08-29 2:29 ` Cameron
2020-08-29 2:31 ` Cameron
2020-08-29 9:15 ` Masami Hiramatsu
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200827161754.241309505@infradead.org \
--to=peterz@infradead.org \
--cc=Eddy_Wu@trendmicro.com \
--cc=anil.s.keshavamurthy@intel.com \
--cc=cameron@moodycamel.com \
--cc=davem@davemloft.net \
--cc=linux-arch@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mhiramat@kernel.org \
--cc=naveen.n.rao@linux.ibm.com \
--cc=oleg@redhat.com \
--cc=paulmck@kernel.org \
--cc=rostedt@goodmis.org \
--cc=will@kernel.org \
--cc=x86@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).