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| author |   Ralf Baechle <ralf@linux-mips.org> | 2013-02-21 16:16:55 +0100 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2013-02-22 10:07:30 +0100 |
| commit | edb15d83a875a1f4b1576188844db5c330c3267d (patch) | |
| tree | 74d54eab401b6ccf2a6ad4821227108a8d160f03 /include/linux/irq_work.h | |
| parent | Merge branch 'mips-next-3.9' of git://git.linux-mips.org/pub/scm/john/linux-john into mips-for-linux-next (diff) | |
| parent | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next (diff) | |
| download | linux-dev-edb15d83a875a1f4b1576188844db5c330c3267d.tar.xz linux-dev-edb15d83a875a1f4b1576188844db5c330c3267d.zip | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into mips-for-linux-next
Conflicts:
include/linux/ssb/ssb_driver_gige.h
Also resolves a logical merge conflict in drivers/net/ethernet/broadcom/-
bgmac.c due to change of an API.
Diffstat (limited to 'include/linux/irq_work.h')
| -rw-r--r-- | include/linux/irq_work.h | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/include/linux/irq_work.h b/include/linux/irq_work.h index 6a9e8f5399e2..f5dbce50466e 100644 --- a/include/linux/irq_work.h +++ b/include/linux/irq_work.h @@ -3,6 +3,20 @@ #include <linux/llist.h> +/* + * An entry can be in one of four states: + * + * free NULL, 0 -> {claimed} : free to be used + * claimed NULL, 3 -> {pending} : claimed to be enqueued + * pending next, 3 -> {busy} : queued, pending callback + * busy NULL, 2 -> {free, claimed} : callback in progress, can be claimed + */ + +#define IRQ_WORK_PENDING 1UL +#define IRQ_WORK_BUSY 2UL +#define IRQ_WORK_FLAGS 3UL +#define IRQ_WORK_LAZY 4UL /* Doesn't want IPI, wait for tick */ + struct irq_work { unsigned long flags; struct llist_node llnode; @@ -16,8 +30,14 @@ void init_irq_work(struct irq_work *work, void (*func)(struct irq_work *)) work->func = func; } -bool irq_work_queue(struct irq_work *work); +void irq_work_queue(struct irq_work *work); void irq_work_run(void); void irq_work_sync(struct irq_work *work); +#ifdef CONFIG_IRQ_WORK +bool irq_work_needs_cpu(void); +#else +static bool irq_work_needs_cpu(void) { return false; } +#endif + #endif /* _LINUX_IRQ_WORK_H */ |