This patch adds comment documentation to visorchannel_tag struct
Signed-off-by: Erik Arfvidson <erik.arfvidson@xxxxxxxxxx>
---
drivers/staging/unisys/visorchannel/visorchannel_funcs.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/drivers/staging/unisys/visorchannel/visorchannel_funcs.c b/drivers/staging/unisys/visorchannel/visorchannel_funcs.c
index c24052b..0490194 100644
--- a/drivers/staging/unisys/visorchannel/visorchannel_funcs.c
+++ b/drivers/staging/unisys/visorchannel/visorchannel_funcs.c
@@ -33,9 +33,13 @@ struct VISORCHANNEL_Tag {
struct channel_header chan_hdr;
uuid_le guid;
ulong size;
- BOOL needs_lock;
- spinlock_t insert_lock;
- spinlock_t remove_lock;
+ BOOL needs_lock; /* Some channels don't need lock due to simplicity */
+ /* The guest can remove from certain queues, but cannot insert into
+ * those queues. The guest can insert into other queues, but can't
+ * remove from those queues . This is based on the queue type.
+ */
+ spinlock_t insert_lock; /* Protects queue insertion variables */
+ spinlock_t remove_lock; /* Protects queue from removal variables */
struct {
struct signal_queue_header req_queue;
--
1.9.1
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