diff options
| author |   sjur.brandeland@stericsson.com <sjur.brandeland@stericsson.com> | 2011-05-13 02:44:03 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2011-05-15 17:45:55 -0400 |
| commit | 43e3692101086add8719c3b8b50b05c9ac5b14e1 (patch) | |
| tree | 736fc7d0792a492d9ef3a19ac8fff7ca800ced99 /include/net/caif | |
| parent | caif: Add ref-count to framing layer (diff) | |
| download | linux-dev-43e3692101086add8719c3b8b50b05c9ac5b14e1.tar.xz linux-dev-43e3692101086add8719c3b8b50b05c9ac5b14e1.zip | |
caif: Move refcount from service layer to sock and dev.
Instead of having reference counts in caif service layers,
we hook into existing refcount handling in socket layer and netdevice.
Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/caif')
| -rw-r--r-- | include/net/caif/cfsrvl.h | 29 |
1 files changed, 16 insertions, 13 deletions
diff --git a/include/net/caif/cfsrvl.h b/include/net/caif/cfsrvl.h index 6c8279c1ae9a..0f5905241843 100644 --- a/include/net/caif/cfsrvl.h +++ b/include/net/caif/cfsrvl.h @@ -10,6 +10,7 @@ #include <linux/stddef.h> #include <linux/types.h> #include <linux/kref.h> +#include <linux/rculist.h> struct cfsrvl { struct cflayer layer; @@ -17,9 +18,11 @@ struct cfsrvl { bool phy_flow_on; bool modem_flow_on; bool supports_flowctrl; - void (*release)(struct kref *); + void (*release)(struct cflayer *layer); struct dev_info dev_info; - struct kref ref; + void (*hold)(struct cflayer *lyr); + void (*put)(struct cflayer *lyr); + struct rcu_head rcu; }; struct cflayer *cfvei_create(u8 linkid, struct dev_info *dev_info); @@ -29,6 +32,10 @@ struct cflayer *cfvidl_create(u8 linkid, struct dev_info *dev_info); struct cflayer *cfrfml_create(u8 linkid, struct dev_info *dev_info, int mtu_size); struct cflayer *cfdbgl_create(u8 linkid, struct dev_info *dev_info); + +void cfsrvl_ctrlcmd(struct cflayer *layr, enum caif_ctrlcmd ctrl, + int phyid); + bool cfsrvl_phyid_match(struct cflayer *layer, int phyid); void cfsrvl_init(struct cfsrvl *service, @@ -40,23 +47,19 @@ u8 cfsrvl_getphyid(struct cflayer *layer); static inline void cfsrvl_get(struct cflayer *layr) { - struct cfsrvl *s; - if (layr == NULL) + struct cfsrvl *s = container_of(layr, struct cfsrvl, layer); + if (layr == NULL || layr->up == NULL || s->hold == NULL) return; - s = container_of(layr, struct cfsrvl, layer); - kref_get(&s->ref); + + s->hold(layr->up); } static inline void cfsrvl_put(struct cflayer *layr) { - struct cfsrvl *s; - if (layr == NULL) + struct cfsrvl *s = container_of(layr, struct cfsrvl, layer); + if (layr == NULL || layr->up == NULL || s->hold == NULL) return; - s = container_of(layr, struct cfsrvl, layer); - WARN_ON(!s->release); - if (s->release) - kref_put(&s->ref, s->release); + s->put(layr->up); } - #endif /* CFSRVL_H_ */ |