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Diffstat (limited to 'Documentation/slow-work.txt')
| -rw-r--r-- | Documentation/slow-work.txt | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/Documentation/slow-work.txt b/Documentation/slow-work.txt index f120238e70f..0169c9d9dd1 100644 --- a/Documentation/slow-work.txt +++ b/Documentation/slow-work.txt @@ -144,6 +144,21 @@ from being taken away before it completes. module should almost certainly be THIS_MODULE. +================ +HELPER FUNCTIONS +================ + +The slow-work facility provides a function by which it can be determined +whether or not an item is queued for later execution: + + bool queued = slow_work_is_queued(struct slow_work *work); + +If it returns false, then the item is not on the queue (it may be executing +with a requeue pending). This can be used to work out whether an item on which +another depends is on the queue, thus allowing a dependent item to be queued +after it. + + =============== ITEM OPERATIONS =============== |