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| author | Mike Christie <michaelc@cs.wisc.edu> | 2012-03-06 23:09:01 +0100 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2012-03-27 09:26:36 +0200 |
| commit | 49d0e64b6a61acea3bcdd6b36be3972111edecc5 (patch) | |
| tree | 891b000418ae40765a47bf8c4241c345e7ee93dd | |
| parent | [SCSI] bfa: Fix endian bug in bfad_iocmd_debug_fw_core(). (diff) | |
| download | linux-49d0e64b6a61acea3bcdd6b36be3972111edecc5.tar.xz linux-49d0e64b6a61acea3bcdd6b36be3972111edecc5.zip | |
[SCSI] iscsi class: fix gfp use in ping compl and host event
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>
| -rw-r--r-- | drivers/scsi/scsi_transport_iscsi.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c index fac31730addf..1cf640e575da 100644 --- a/drivers/scsi/scsi_transport_iscsi.c +++ b/drivers/scsi/scsi_transport_iscsi.c @@ -1486,7 +1486,7 @@ void iscsi_post_host_event(uint32_t host_no, struct iscsi_transport *transport, 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); @@ -1504,7 +1504,7 @@ void iscsi_post_host_event(uint32_t host_no, struct iscsi_transport *transport, 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); @@ -1517,7 +1517,7 @@ void iscsi_ping_comp_event(uint32_t host_no, struct iscsi_transport *transport, 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; @@ -1533,7 +1533,7 @@ void iscsi_ping_comp_event(uint32_t host_no, struct iscsi_transport *transport, 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); |