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netdev@vger.kernel.org, matthew.brost@intel.com, her0gyugyu@gmail.com Subject: [PATCH v16 34/42] dept: make dept stop from working on debug_locks_off() Date: Mon, 19 May 2025 18:18:18 +0900 Message-Id: <20250519091826.19752-35-byungchul@sk.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20250519091826.19752-1-byungchul@sk.com> References: <20250519091826.19752-1-byungchul@sk.com> X-Brightmail-Tracker: H4sIAAAAAAAAAzWSWUxTeRTG+d+dSic3dbsgZpwmxhGjiII5JqMxPuj1wcTlwUQn4zRytdVS sWWdiRlQIFAWHSISELBUU5tSEG95wKUEQYqViBVqLQRQGjUiIA7Yjmxqi/py8sv58n3nezgM LuskoxiVJkXQahRqOSUhJOMRtevP/B+j3NhVxYD/Yz4BVTetFLga6hBYm7IxGOnYDc8DYwhm Hz/BobzMhaB2eBCHJscQArv5HAW9r34Ct3+CAmdZIQXnr92k4OnoHAYDl0sxqBP3wgvTGwK6 LhoxKB+h4Er5eSw43mIwbbLQYMpaDT5zJQ1zw3HgHPKQYO9fBxU1AxTcszsJcDT7MOi9U0XB kPULCV2OhwQESlaA699iEurfGykYDZhwMPknaOhpNWDgMCyDxpxgYN7UZxI6i1sxyLt+CwN3 310ELfkvMRCtHgra/WMY2MQyHGZudCDwlYzTkFs0TcOV7BIEhbmXCcgZSIDZT8HL1R/jIPtq IwH18x60YxtvrbEivn1sAudzbOn8jP8ZxdsDBoJ/ZOT425WDNJ/T0k/zBjGVt5lj+Gv3RjC+ 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Signed-off-by: Byungchul Park --- include/linux/dept.h | 2 ++ kernel/dependency/dept.c | 6 ++++++ lib/debug_locks.c | 2 ++ 3 files changed, 10 insertions(+) diff --git a/include/linux/dept.h b/include/linux/dept.h index 8b4d97fc4627..b164f74e86e5 100644 --- a/include/linux/dept.h +++ b/include/linux/dept.h @@ -390,6 +390,7 @@ struct dept_ext_wgen { unsigned int wgen; }; +extern void dept_stop_emerg(void); extern void dept_on(void); extern void dept_off(void); extern void dept_init(void); @@ -442,6 +443,7 @@ struct dept_ext_wgen { }; #define DEPT_MAP_INITIALIZER(n, k) { } +#define dept_stop_emerg() do { } while (0) #define dept_on() do { } while (0) #define dept_off() do { } while (0) #define dept_init() do { } while (0) diff --git a/kernel/dependency/dept.c b/kernel/dependency/dept.c index b154c1bb4ee5..b5ba6d939932 100644 --- a/kernel/dependency/dept.c +++ b/kernel/dependency/dept.c @@ -187,6 +187,12 @@ static void dept_unlock(void) arch_spin_unlock(&dept_spin); } +void dept_stop_emerg(void) +{ + WRITE_ONCE(dept_stop, 1); +} +EXPORT_SYMBOL_GPL(dept_stop_emerg); + enum bfs_ret { BFS_CONTINUE, BFS_DONE, diff --git a/lib/debug_locks.c b/lib/debug_locks.c index a75ee30b77cb..14a965914a8f 100644 --- a/lib/debug_locks.c +++ b/lib/debug_locks.c @@ -38,6 +38,8 @@ EXPORT_SYMBOL_GPL(debug_locks_silent); */ int debug_locks_off(void) { + dept_stop_emerg(); + if (debug_locks && __debug_locks_off()) { if (!debug_locks_silent) { console_verbose(); -- 2.17.1