From: Jim Cromie <jim.cromie@gmail.com>
To: jbaron@akamai.com, gregkh@linuxfoundation.org,
linux-kernel@vger.kernel.org
Cc: linux@rasmusvillemoes.dk, Jim Cromie <jim.cromie@gmail.com>
Subject: [PATCH 16/18] dyndbg: make ddebug_tables list LIFO for add/remove_module
Date: Thu, 5 Dec 2019 14:51:49 -0700 [thread overview]
Message-ID: <20191205215151.421926-19-jim.cromie@gmail.com> (raw)
In-Reply-To: <20191205215151.421926-1-jim.cromie@gmail.com>
loadable modules are the last in, and are the only modules that could
be removed. ddebug_remove_module() searches from head, but
ddebug_add_module() uses list_add_tail(). Change it to list_add() for
a micro-optimization.
Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
---
lib/dynamic_debug.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c
index 15bb9939df97..d056fca96b9d 100644
--- a/lib/dynamic_debug.c
+++ b/lib/dynamic_debug.c
@@ -958,7 +958,7 @@ int ddebug_add_module(struct _ddebug *tab, unsigned int n,
dt->ddebugs = tab;
mutex_lock(&ddebug_lock);
- list_add_tail(&dt->link, &ddebug_tables);
+ list_add(&dt->link, &ddebug_tables);
mutex_unlock(&ddebug_lock);
vpr_info("%u debug prints in module %s\n", n, dt->mod_name);
--
2.23.0
next prev parent reply other threads:[~2019-12-05 21:52 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-05 21:51 [PATCH v3 00/18] dynamic-debug cleanups, 2 new features Jim Cromie
2019-12-05 21:51 ` [PATCH 01/18] dyndbg-docs: eschew file /full/path query in docs Jim Cromie
2019-12-05 21:51 ` [PATCH 02/18] dyndbg: drop obsolete comment on ddebug_proc_open Jim Cromie
2019-12-05 21:51 ` [PATCH 03/18] dyndbg: raise verbosity needed to enable ddebug_proc_* logging Jim Cromie
2019-12-05 21:51 ` [PATCH 04/18] dyndbg: rename __verbose section to __dyndbg Jim Cromie
2019-12-05 21:51 ` [PATCH 05/18] dyndbg: fix overcounting of ram used by dyndbg Jim Cromie
2019-12-05 21:51 ` [PATCH 06/18] dyndbg: fix a BUG_ON in ddebug_describe_flags Jim Cromie
2019-12-05 21:51 ` [PATCH 07/18] dyndbg: refactor parse_linerange out of ddebug_parse_query Jim Cromie
2019-12-05 21:51 ` [PATCH 08/18] dyndbg: accept 'file foo.c:func1' and 'file foo.c:10-100' Jim Cromie
2019-12-05 21:51 ` [PATCH 09/18] dyndbg: refactor ddebug_read_flags out of ddebug_parse_flags Jim Cromie
2019-12-05 21:51 ` [PATCH 10/18] dyndbg: combine flags & mask into a struct, use that Jim Cromie
2019-12-05 21:51 ` [PATCH 11/18] dyndbg: add filter parameter to ddebug_parse_flags Jim Cromie
2019-12-05 21:51 ` [PATCH 12/18] dyndbg: extend ddebug_parse_flags to accept optional filter-flags Jim Cromie
2019-12-05 21:51 ` [PATCH 13/18] dyndbg: prefer declarative init in caller, to memset in callee Jim Cromie
2019-12-05 21:51 ` [PATCH 14/16] dyndbg: add inverted-flags, implement filtering on flags Jim Cromie
2019-12-05 21:51 ` [PATCH 14/18] dyndbg: add user-flag, negating-flags, and " Jim Cromie
2019-12-05 21:51 ` [PATCH 15/16] dyndbg: allow inverted-flag-chars in modflags Jim Cromie
2019-12-05 21:51 ` [PATCH 15/18] dyndbg: allow negating flag-chars " Jim Cromie
2019-12-05 21:51 ` Jim Cromie [this message]
2019-12-05 21:51 ` [PATCH 17/18] dyndbg: rename dynamic_debug to dyndbg Jim Cromie
2019-12-05 22:24 ` Andy Shevchenko
2019-12-06 7:49 ` Rasmus Villemoes
2019-12-06 17:33 ` jim.cromie
2019-12-05 21:51 ` [PATCH 18/18] dyndbg-docs: normalize comments in examples Jim Cromie
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