Commit 37bb927d authored by Oswald Buddenhagen's avatar Oswald Buddenhagen Committed by Takashi Iwai
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ALSA: core: update comment on snd_card.controls_rwsem 



Since commit 5bbb1ab5 ("control: use counting semaphore as write lock
for ELEM_WRITE operation"), this has been locking the controls including
their values, not just the list of controls.

Signed-off-by: default avatarOswald Buddenhagen <oswald.buddenhagen@gmx.de>
Link: https://lore.kernel.org/r/20230428095941.1706278-6-oswald.buddenhagen@gmx.de


Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent 35d1d582

include/sound/core.h

+1 −1
Original line number Diff line number Diff line
@@ -98,7 +98,7 @@ struct snd_card { 


	struct device ctl_dev;		/* control device */

	unsigned int last_numid;	/* last used numeric ID */

	struct rw_semaphore controls_rwsem;	/* controls list lock */

	struct rw_semaphore controls_rwsem;	/* controls lock (list and values) */

	rwlock_t ctl_files_rwlock;	/* ctl_files list lock */

	int controls_count;		/* count of all controls */

	size_t user_ctl_alloc_size;	// current memory allocation by user controls.