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sched: add kernel doc for the completion, fix kernel-doc-nano-HOWTO.txt

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This patch adds kernel doc for the completion feature.

An error in the split-man.pl PERL snippet in kernel-doc-nano-HOWTO.txt is
also fixed.

Signed-off-by: Kevin Diggs <kevdig@hypersurf.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Kevin Diggs 2008-08-26 10:26:54 +02:00 • committed by Ingo Molnar
parent 3cf430b063
commit 65eb3dc609
3 changed files with 99 additions and 2 deletions
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41
include/linux/completion.h
View file

@ -10,6 +10,18 @@
#include <linux/wait.h>
/**
* struct completion - structure used to maintain state for a "completion"
*
* This is the opaque structure used to maintain the state for a "completion".
* Completions currently use a FIFO to queue threads that have to wait for
* the "completion" event.
*
* See also: complete(), wait_for_completion() (and friends _timeout,
* _interruptible, _interruptible_timeout, and _killable), init_completion(),
* and macros DECLARE_COMPLETION(), DECLARE_COMPLETION_ONSTACK(), and
* INIT_COMPLETION().
*/
struct completion {
unsigned int done;
wait_queue_head_t wait;
@ -21,6 +33,14 @@ struct completion {
#define COMPLETION_INITIALIZER_ONSTACK(work) \
({ init_completion(&work); work; })
/**
* DECLARE_COMPLETION: - declare and initialize a completion structure
* @work: identifier for the completion structure
*
* This macro declares and initializes a completion structure. Generally used
* for static declarations. You should use the _ONSTACK variant for automatic
* variables.
*/
#define DECLARE_COMPLETION(work) \
struct completion work = COMPLETION_INITIALIZER(work)
@ -29,6 +49,13 @@ struct completion {
* completions - so we use the _ONSTACK() variant for those that
* are on the kernel stack:
*/
/**
* DECLARE_COMPLETION_ONSTACK: - declare and initialize a completion structure
* @work: identifier for the completion structure
*
* This macro declares and initializes a completion structure on the kernel
* stack.
*/
#ifdef CONFIG_LOCKDEP
# define DECLARE_COMPLETION_ONSTACK(work) \
struct completion work = COMPLETION_INITIALIZER_ONSTACK(work)
@ -36,6 +63,13 @@ struct completion {
# define DECLARE_COMPLETION_ONSTACK(work) DECLARE_COMPLETION(work)
#endif
/**
* init_completion: - Initialize a dynamically allocated completion
* @x: completion structure that is to be initialized
*
* This inline function will initialize a dynamically created completion
* structure.
*/
static inline void init_completion(struct completion *x)
{
x->done = 0;
@ -55,6 +89,13 @@ extern bool completion_done(struct completion *x);
extern void complete(struct completion *);
extern void complete_all(struct completion *);
/**
* INIT_COMPLETION: - reinitialize a completion structure
* @x: completion structure to be reinitialized
*
* This macro should be used to reinitialize a completion structure so it can
* be reused. This is especially important after complete_all() is used.
*/
#define INIT_COMPLETION(x) ((x).done = 0)