Messages in this thread Patch in this message | | | Date | Tue, 15 Jan 2013 20:12:37 +0100 (CET) | From | Jiri Kosina <> | Subject | [PATCH] lockdep, rwsem: fix down_write_nest_lock() if !CONFIG_DEBUG_LOCK_ALLOC |
| |
Commit 1b963c81b1 ("lockdep, rwsem: provide down_write_nest_lock()") contains a bug in a codepath when CONFIG_DEBUG_LOCK_ALLOC is disabled, which causes down_read() to be called instead of down_write() by mistake on such configurations. Fix that.
Reported-by: Andrew Clayton <andrew@digital-domain.net> Reported-by: Zlatko Calusic <zlatko.calusic@iskon.hr> Tested-by: Andrew Clayton <andrew@digital-domain.net> Signed-off-by: Jiri Kosina <jkosina@suse.cz> --- include/linux/rwsem.h | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/include/linux/rwsem.h b/include/linux/rwsem.h index 413cc11..8da67d6 100644 --- a/include/linux/rwsem.h +++ b/include/linux/rwsem.h @@ -135,7 +135,7 @@ do { \ #else # define down_read_nested(sem, subclass) down_read(sem) -# define down_write_nest_lock(sem, nest_lock) down_read(sem) +# define down_write_nest_lock(sem, nest_lock) down_write(sem) # define down_write_nested(sem, subclass) down_write(sem) #endif -- Jiri Kosina SUSE Labs
| |