From: Jim Cromie <jim.cromie@gmail.com>
To: jbaron@akamai.com, linux-kernel@vger.kernel.org,
akpm@linuxfoundation.org, gregkh@linuxfoundation.org
Cc: linux@rasmusvillemoes.dk, Jim Cromie <jim.cromie@gmail.com>
Subject: [PATCH v2 08/24] dyndbg: make ddebug_tables list LIFO for add/remove_module
Date: Sat, 13 Jun 2020 09:57:22 -0600 [thread overview]
Message-ID: <20200613155738.2249399-9-jim.cromie@gmail.com> (raw)
In-Reply-To: <20200613155738.2249399-1-jim.cromie@gmail.com>
loadable modules are the last in on this list, 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.
---
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 aaace13d7536..31d3be30776e 100644
--- a/lib/dynamic_debug.c
+++ b/lib/dynamic_debug.c
@@ -896,7 +896,7 @@ 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);
v2pr_info("%u debug prints in module %s\n", n, dt->mod_name);
--
2.26.2
next prev parent reply other threads:[~2020-06-13 15:59 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-13 15:57 [PATCH v2 00/24] dynamic_debug cleanups, query features, WIP print-classes Jim Cromie
2020-06-13 15:57 ` [PATCH v2 01/24] dyndbg-docs: eschew file /full/path query in docs Jim Cromie
2020-06-14 6:04 ` Greg KH
2020-06-14 14:24 ` jim.cromie
2020-06-13 15:57 ` [PATCH v2 02/24] dyndbg-docs: initialization is done early, not arch Jim Cromie
2020-06-13 15:57 ` [PATCH v2 03/24] dyndbg: drop obsolete comment on ddebug_proc_open Jim Cromie
2020-06-13 15:57 ` [PATCH v2 04/24] dyndbg: refine debug verbosity; 1 is basic, 2 more chatty Jim Cromie
2020-06-13 15:57 ` [PATCH v2 05/24] dyndbg: rename __verbose section to __dyndbg Jim Cromie
2020-06-13 15:57 ` [PATCH v2 06/24] dyndbg: fix overcounting of ram used by dyndbg Jim Cromie
2020-06-13 15:57 ` [PATCH v2 07/24] dyndbg: fix a BUG_ON in ddebug_describe_flags Jim Cromie
2020-06-15 13:20 ` Petr Mladek
2020-06-15 21:53 ` jim.cromie
2020-06-13 15:57 ` Jim Cromie [this message]
2020-06-13 15:57 ` [PATCH v2 09/24] dyndbg: add maybe(str,"") macro to reduce code Jim Cromie
2020-06-13 16:14 ` Joe Perches
2020-06-15 20:50 ` jim.cromie
2020-06-15 13:28 ` Petr Mladek
2020-06-15 20:52 ` jim.cromie
2020-06-13 15:57 ` [PATCH v2 10/24] dyndbg: refactor parse_linerange out of ddebug_parse_query Jim Cromie
2020-06-15 13:37 ` Petr Mladek
2020-06-15 22:37 ` jim.cromie
2020-06-13 15:57 ` [PATCH v2 11/24] dyndbg: accept 'file foo.c:func1' and 'file foo.c:10-100' Jim Cromie
2020-06-15 14:46 ` Petr Mladek
2020-06-13 15:57 ` [PATCH v2 12/24] dyndbg: refactor ddebug_read_flags out of ddebug_parse_flags Jim Cromie
2020-06-13 15:57 ` [PATCH v2 13/24] dyndbg: combine flags & mask into a struct, use that Jim Cromie
2020-06-15 15:14 ` Petr Mladek
2020-06-16 5:47 ` jim.cromie
2020-06-16 11:34 ` Petr Mladek
2020-06-13 15:57 ` [PATCH v2 14/24] dyndbg: add filter parameter to ddebug_parse_flags Jim Cromie
2020-06-15 15:17 ` Petr Mladek
2020-06-13 15:57 ` [PATCH v2 15/24] dyndbg: extend ddebug_parse_flags to accept optional leading filter-flags Jim Cromie
2020-06-15 15:37 ` Petr Mladek
2020-06-13 15:57 ` [PATCH v2 16/24] dyndbg: prefer declarative init in caller, to memset in callee Jim Cromie
2020-06-13 15:57 ` [PATCH v2 17/24] dyndbg: add user-flag, negating-flags, and filtering on flags Jim Cromie
2020-06-16 11:41 ` Petr Mladek
2020-06-13 15:57 ` [PATCH v2 18/24] dyndbg: allow negating flag-chars in modflags Jim Cromie
2020-06-16 11:47 ` Petr Mladek
2020-06-13 15:57 ` [PATCH v2 19/24] dyndbg: accept query terms like module:foo and file=bar Jim Cromie
2020-06-16 11:57 ` Petr Mladek
2020-06-16 20:08 ` jim.cromie
2020-06-17 12:11 ` Petr Mladek
2020-06-17 13:32 ` jim.cromie
2020-06-17 14:01 ` Greg KH
2020-06-13 15:57 ` [PATCH v2 20/24] dyndbg: WIP towards debug-print-class based callsite controls Jim Cromie
2020-06-13 19:22 ` Joe Perches
2020-06-16 13:45 ` Petr Mladek
2020-06-16 21:05 ` Joe Perches
2020-06-17 9:31 ` Daniel Thompson
2020-06-17 9:52 ` Petr Mladek
2020-06-17 13:23 ` jim.cromie
2020-06-18 12:20 ` Petr Mladek
2020-06-16 21:13 ` jim.cromie
2020-06-16 21:25 ` jim.cromie
2020-06-13 15:57 ` [PATCH v2 21/24] dyndbg: adapt header macros to pass print-class Jim Cromie
2020-06-13 17:11 ` kernel test robot
2020-06-13 20:25 ` kernel test robot
2020-06-13 15:57 ` [PATCH v2 22/24] dyndbg: add print-class as trailing number to control output Jim Cromie
2020-06-13 15:57 ` [PATCH v2 23/24] kset-example: add pr_debug()s for easy visibility of its operation Jim Cromie
2020-06-14 6:05 ` Greg KH
2020-06-15 22:18 ` jim.cromie
2020-06-16 6:37 ` Greg KH
2020-06-13 15:57 ` [PATCH v2 24/24] kset-example: use pr_debug_n to create example print-classes Jim Cromie
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