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| author |   Arianna Avanzini <avanzini@google.com> | 2015-12-01 11:48:19 +0100 |
|---|---|---|
| committer |   Jens Axboe <axboe@fb.com> | 2015-12-01 10:52:12 -0700 |
| commit | dbac117542b7e814245c43daa638a3626230cb2a (patch) | |
| tree | bad611c6b1b4e88f95d2269d5878f40b301bbdfd /drivers/block | |
| parent | null_blk: guarantee device restart in all irq modes (diff) | |
| download | linux-dev-dbac117542b7e814245c43daa638a3626230cb2a.tar.xz linux-dev-dbac117542b7e814245c43daa638a3626230cb2a.zip | |
null_blk: change type of completion_nsec to unsigned long
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>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/block')
| -rw-r--r-- | drivers/block/null_blk.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/block/null_blk.c b/drivers/block/null_blk.c index cf656198836c..0c3940ec5e62 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; |