Messages in this thread Patch in this message | | | From | Paolo Valente <> | Subject | [PATCH BUGFIX V2 3/3] null_blk: change type of completion_nsec to unsigned long | Date | Tue, 1 Dec 2015 11:48:19 +0100 |
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From: Arianna Avanzini <avanzini@google.com>
This commit at least doubles the maximum value for completion_nsec. This helps in special cases where one wants/needs to emulate an extremely slow I/O (for example to spot bugs).
Signed-off-by: Paolo Valente <paolo.valente@unimore.it> Signed-off-by: Arianna Avanzini <avanzini@google.com> --- drivers/block/null_blk.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/block/null_blk.c b/drivers/block/null_blk.c index cf65619..0c3940e 100644 --- a/drivers/block/null_blk.c +++ b/drivers/block/null_blk.c @@ -132,8 +132,8 @@ static const struct kernel_param_ops null_irqmode_param_ops = { device_param_cb(irqmode, &null_irqmode_param_ops, &irqmode, S_IRUGO); MODULE_PARM_DESC(irqmode, "IRQ completion handler. 0-none, 1-softirq, 2-timer"); -static int completion_nsec = 10000; -module_param(completion_nsec, int, S_IRUGO); +static unsigned long completion_nsec = 10000; +module_param(completion_nsec, ulong, S_IRUGO); MODULE_PARM_DESC(completion_nsec, "Time in ns to complete a request in hardware. Default: 10,000ns"); static int hw_queue_depth = 64; -- 1.9.1
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