If a ping or host event were to occur when memory is low
we do not want to use GFP_KERNEL, because the paths
sending them cannot block for data to be written. These
paths might be needed to recover write paths. Use GFP_NOIO
instead.
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
struct iscsi_uevent *ev;
int len = NLMSG_SPACE(sizeof(*ev) + data_size);
struct iscsi_uevent *ev;
int len = NLMSG_SPACE(sizeof(*ev) + data_size);
- skb = alloc_skb(len, GFP_KERNEL);
+ skb = alloc_skb(len, GFP_NOIO);
if (!skb) {
printk(KERN_ERR "gracefully ignored host event (%d):%d OOM\n",
host_no, code);
if (!skb) {
printk(KERN_ERR "gracefully ignored host event (%d):%d OOM\n",
host_no, code);
if (data_size)
memcpy((char *)ev + sizeof(*ev), data, data_size);
if (data_size)
memcpy((char *)ev + sizeof(*ev), data, data_size);
- iscsi_multicast_skb(skb, ISCSI_NL_GRP_ISCSID, GFP_KERNEL);
+ iscsi_multicast_skb(skb, ISCSI_NL_GRP_ISCSID, GFP_NOIO);
}
EXPORT_SYMBOL_GPL(iscsi_post_host_event);
}
EXPORT_SYMBOL_GPL(iscsi_post_host_event);
struct iscsi_uevent *ev;
int len = NLMSG_SPACE(sizeof(*ev) + data_size);
struct iscsi_uevent *ev;
int len = NLMSG_SPACE(sizeof(*ev) + data_size);
- skb = alloc_skb(len, GFP_KERNEL);
+ skb = alloc_skb(len, GFP_NOIO);
if (!skb) {
printk(KERN_ERR "gracefully ignored ping comp: OOM\n");
return;
if (!skb) {
printk(KERN_ERR "gracefully ignored ping comp: OOM\n");
return;
ev->r.ping_comp.data_size = data_size;
memcpy((char *)ev + sizeof(*ev), data, data_size);
ev->r.ping_comp.data_size = data_size;
memcpy((char *)ev + sizeof(*ev), data, data_size);
- iscsi_multicast_skb(skb, ISCSI_NL_GRP_ISCSID, GFP_KERNEL);
+ iscsi_multicast_skb(skb, ISCSI_NL_GRP_ISCSID, GFP_NOIO);
}
EXPORT_SYMBOL_GPL(iscsi_ping_comp_event);
}
EXPORT_SYMBOL_GPL(iscsi_ping_comp_event);