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block: adjust default budget for blk-iopoll

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It's not exported, I doubt we'll have a reason to change this...

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
This commit is contained in:
Jens Axboe 2009-08-06 20:50:48 +02:00
parent 1badcfbd7f
commit 37867ae7c5
1 changed files with 3 additions and 1 deletions
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4
block/blk-iopoll.c
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@ -17,6 +17,8 @@
int blk_iopoll_enabled = 1; int blk_iopoll_enabled = 1;
EXPORT_SYMBOL(blk_iopoll_enabled); EXPORT_SYMBOL(blk_iopoll_enabled);
static unsigned int blk_iopoll_budget __read_mostly = 256;
static DEFINE_PER_CPU(struct list_head, blk_cpu_iopoll); static DEFINE_PER_CPU(struct list_head, blk_cpu_iopoll);
/** /**
@ -78,8 +80,8 @@ EXPORT_SYMBOL(blk_iopoll_complete);
static void blk_iopoll_softirq(struct softirq_action *h) static void blk_iopoll_softirq(struct softirq_action *h)
{ {
struct list_head *list = &__get_cpu_var(blk_cpu_iopoll); struct list_head *list = &__get_cpu_var(blk_cpu_iopoll);
int rearm = 0, budget = blk_iopoll_budget;
unsigned long start_time = jiffies; unsigned long start_time = jiffies;
int rearm = 0, budget = 64;
local_irq_disable(); local_irq_disable();