diff options
author | Al Viro | 2015-12-29 15:58:39 -0500 |
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committer | Al Viro | 2015-12-30 13:01:03 -0500 |
commit | fceef393a538134f03b778c5d2519e670269342f (patch) | |
tree | cd43c9afdc07852d286965ad4d11772f6c275d1a /include/linux/delayed_call.h | |
parent | cd3417c8fc9504cc1afe944515f338aff9ec286b (diff) |
switch ->get_link() to delayed_call, kill ->put_link()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'include/linux/delayed_call.h')
-rw-r--r-- | include/linux/delayed_call.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/include/linux/delayed_call.h b/include/linux/delayed_call.h new file mode 100644 index 000000000000..f7fa76ae1a9b --- /dev/null +++ b/include/linux/delayed_call.h @@ -0,0 +1,34 @@ +#ifndef _DELAYED_CALL_H +#define _DELAYED_CALL_H + +/* + * Poor man's closures; I wish we could've done them sanely polymorphic, + * but... + */ + +struct delayed_call { + void (*fn)(void *); + void *arg; +}; + +#define DEFINE_DELAYED_CALL(name) struct delayed_call name = {NULL, NULL} + +/* I really wish we had closures with sane typechecking... */ +static inline void set_delayed_call(struct delayed_call *call, + void (*fn)(void *), void *arg) +{ + call->fn = fn; + call->arg = arg; +} + +static inline void do_delayed_call(struct delayed_call *call) +{ + if (call->fn) + call->fn(call->arg); +} + +static inline void clear_delayed_call(struct delayed_call *call) +{ + call->fn = NULL; +} +#endif |