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| author | Vitaly Kuznetsov <vkuznets@redhat.com> | 2015-01-20 16:45:05 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-01-25 09:18:00 -0800 |
| commit | 67fae053bfc6e84144150e4c6c62670abb215c33 (patch) | |
| tree | a3636a76dc94882f166e95e5ae49a9eed33c5081 /include/linux/hyperv.h | |
| parent | 9c3a6f7e476fc4961297fc66b1177f9f8c8dd238 (diff) | |
| download | lwn-67fae053bfc6e84144150e4c6c62670abb215c33.tar.gz lwn-67fae053bfc6e84144150e4c6c62670abb215c33.zip | |
Drivers: hv: rename sc_lock to the more generic lock
sc_lock spinlock in struct vmbus_channel is being used to not only protect the
sc_list field, e.g. vmbus_open() function uses it to implement test-and-set
access to the state field. Rename it to the more generic 'lock' and add the
description.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/hyperv.h')
| -rw-r--r-- | include/linux/hyperv.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h index 259023a34bec..5a2ba674795e 100644 --- a/include/linux/hyperv.h +++ b/include/linux/hyperv.h @@ -734,7 +734,12 @@ struct vmbus_channel { */ void (*sc_creation_callback)(struct vmbus_channel *new_sc); - spinlock_t sc_lock; + /* + * The spinlock to protect the structure. It is being used to protect + * test-and-set access to various attributes of the structure as well + * as all sc_list operations. + */ + spinlock_t lock; /* * All Sub-channels of a primary channel are linked here. */ |