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authorLinus Torvalds <torvalds@linux-foundation.org>2018-12-22 15:03:00 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2018-12-22 15:03:00 -0800
commit9105b8aa50c182371533fc97db64fc8f26f051b3 (patch)
treee03f13e8483d7a51e46bf7d307ed96f864188b5b /drivers/target/iscsi/cxgbit
parentMerge tag 'compiler-attributes-for-linus-v4.20' of https://github.com/ojeda/linux (diff)
parentscsi: sd: use mempool for discard special page (diff)
downloadlinux-dev-9105b8aa50c182371533fc97db64fc8f26f051b3.tar.xz
linux-dev-9105b8aa50c182371533fc97db64fc8f26f051b3.zip
Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley: "This is two simple target fixes and one discard related I/O starvation problem in sd. The discard problem occurs because the discard page doesn't have a mempool backing so if the allocation fails due to memory pressure, we then lose the forward progress we require if the writeout is on the same device. The fix is to back it with a mempool" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: sd: use mempool for discard special page scsi: target: iscsi: cxgbit: add missing spin_lock_init() scsi: target: iscsi: cxgbit: fix csk leak
Diffstat (limited to 'drivers/target/iscsi/cxgbit')
-rw-r--r--drivers/target/iscsi/cxgbit/cxgbit_cm.c5
-rw-r--r--drivers/target/iscsi/cxgbit/cxgbit_main.c1
2 files changed, 5 insertions, 1 deletions
diff --git a/drivers/target/iscsi/cxgbit/cxgbit_cm.c b/drivers/target/iscsi/cxgbit/cxgbit_cm.c
index 71888b979ab5..b19c960d5490 100644
--- a/drivers/target/iscsi/cxgbit/cxgbit_cm.c
+++ b/drivers/target/iscsi/cxgbit/cxgbit_cm.c
@@ -641,8 +641,11 @@ static void cxgbit_send_halfclose(struct cxgbit_sock *csk)
static void cxgbit_arp_failure_discard(void *handle, struct sk_buff *skb)
{
+ struct cxgbit_sock *csk = handle;
+
pr_debug("%s cxgbit_device %p\n", __func__, handle);
kfree_skb(skb);
+ cxgbit_put_csk(csk);
}
static void cxgbit_abort_arp_failure(void *handle, struct sk_buff *skb)
@@ -1206,7 +1209,7 @@ cxgbit_pass_accept_rpl(struct cxgbit_sock *csk, struct cpl_pass_accept_req *req)
rpl5->opt0 = cpu_to_be64(opt0);
rpl5->opt2 = cpu_to_be32(opt2);
set_wr_txq(skb, CPL_PRIORITY_SETUP, csk->ctrlq_idx);
- t4_set_arp_err_handler(skb, NULL, cxgbit_arp_failure_discard);
+ t4_set_arp_err_handler(skb, csk, cxgbit_arp_failure_discard);
cxgbit_l2t_send(csk->com.cdev, skb, csk->l2t);
}
diff --git a/drivers/target/iscsi/cxgbit/cxgbit_main.c b/drivers/target/iscsi/cxgbit/cxgbit_main.c
index f3f8856bfb68..c011c826fc26 100644
--- a/drivers/target/iscsi/cxgbit/cxgbit_main.c
+++ b/drivers/target/iscsi/cxgbit/cxgbit_main.c
@@ -58,6 +58,7 @@ static void *cxgbit_uld_add(const struct cxgb4_lld_info *lldi)
return ERR_PTR(-ENOMEM);
kref_init(&cdev->kref);
+ spin_lock_init(&cdev->np_lock);
cdev->lldi = *lldi;