diff options
| author | Davidlohr Bueso <dave@stgolabs.net> | 2019-10-30 07:49:16 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-11-01 10:50:37 +0100 |
| commit | 3ae82f449cea00de5cd894feb8e9154b2da99b4e (patch) | |
| tree | 523e18d27b29d5cba46232134b034c7af156a3ff /drivers/staging/exfat/exfat.h | |
| parent | ebc8f4f603392e2f130e562808897b26c74b2f77 (diff) | |
drivers/staging/exfat: Replace binary semaphores for mutexes
At a slight footprint cost (24 vs 32 bytes), mutexes are more optimal
than semaphores; it's also a nicer interface for mutual exclusion,
which is why they are encouraged over binary semaphores, when possible.
For both v_sem and z_sem, their semantics imply traditional lock
ownership; that is, the lock owner is the same for both lock/unlock
operations. Therefore it is safe to convert.
Signed-off-by: Davidlohr Bueso <dave@stgolabs.net>
Acked-by: Valdis Kletnieks <valdis.kletnieks@vt.edu>
Link: https://lore.kernel.org/r/20191030144916.10802-1-dave@stgolabs.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/exfat/exfat.h')
| -rw-r--r-- | drivers/staging/exfat/exfat.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/staging/exfat/exfat.h b/drivers/staging/exfat/exfat.h index 6142e880f682..acb73f47a253 100644 --- a/drivers/staging/exfat/exfat.h +++ b/drivers/staging/exfat/exfat.h @@ -610,7 +610,7 @@ struct fs_info_t { u32 dev_ejected; /* block device operation error flag */ struct fs_func *fs_func; - struct semaphore v_sem; + struct mutex v_mutex; /* FAT cache */ struct buf_cache_t FAT_cache_array[FAT_CACHE_SIZE]; |