diff options
Diffstat (limited to 'drivers/block/aoe/aoeblk.c')
| -rw-r--r-- | drivers/block/aoe/aoeblk.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/block/aoe/aoeblk.c b/drivers/block/aoe/aoeblk.c index 00dfc5008ad..d5aa3b8c9f3 100644 --- a/drivers/block/aoe/aoeblk.c +++ b/drivers/block/aoe/aoeblk.c @@ -16,11 +16,18 @@ #include <linux/netdevice.h> #include <linux/mutex.h> #include <linux/export.h> +#include <linux/moduleparam.h> #include "aoe.h" static DEFINE_MUTEX(aoeblk_mutex); static struct kmem_cache *buf_pool_cache; +/* GPFS needs a larger value than the default. */ +static int aoe_maxsectors; +module_param(aoe_maxsectors, int, 0644); +MODULE_PARM_DESC(aoe_maxsectors, + "When nonzero, set the maximum number of sectors per I/O request"); + static ssize_t aoedisk_show_state(struct device *dev, struct device_attribute *attr, char *page) { @@ -248,6 +255,8 @@ aoeblk_gdalloc(void *vp) d->blkq = gd->queue = q; q->queuedata = d; d->gd = gd; + if (aoe_maxsectors) + blk_queue_max_hw_sectors(q, aoe_maxsectors); gd->major = AOE_MAJOR; gd->first_minor = d->sysminor; gd->fops = &aoe_bdops; |