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path: root/drivers/vhost/scsi.c
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Diffstat (limited to 'drivers/vhost/scsi.c')
-rw-r--r--drivers/vhost/scsi.c43
1 files changed, 28 insertions, 15 deletions
diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c
index 4b79a1f2f901..592b31698fc8 100644
--- a/drivers/vhost/scsi.c
+++ b/drivers/vhost/scsi.c
@@ -461,7 +461,7 @@ static void tcm_vhost_release_cmd(struct se_cmd *se_cmd)
u32 i;
for (i = 0; i < tv_cmd->tvc_sgl_count; i++)
put_page(sg_page(&tv_cmd->tvc_sgl[i]));
- }
+ }
tcm_vhost_put_inflight(tv_cmd->inflight);
percpu_ida_free(&se_sess->sess_tag_pool, se_cmd->map_tag);
@@ -1373,21 +1373,30 @@ static int vhost_scsi_set_features(struct vhost_scsi *vs, u64 features)
return 0;
}
+static void vhost_scsi_free(struct vhost_scsi *vs)
+{
+ if (is_vmalloc_addr(vs))
+ vfree(vs);
+ else
+ kfree(vs);
+}
+
static int vhost_scsi_open(struct inode *inode, struct file *f)
{
struct vhost_scsi *vs;
struct vhost_virtqueue **vqs;
- int r, i;
+ int r = -ENOMEM, i;
- vs = kzalloc(sizeof(*vs), GFP_KERNEL);
- if (!vs)
- return -ENOMEM;
+ vs = kzalloc(sizeof(*vs), GFP_KERNEL | __GFP_NOWARN | __GFP_REPEAT);
+ if (!vs) {
+ vs = vzalloc(sizeof(*vs));
+ if (!vs)
+ goto err_vs;
+ }
vqs = kmalloc(VHOST_SCSI_MAX_VQ * sizeof(*vqs), GFP_KERNEL);
- if (!vqs) {
- kfree(vs);
- return -ENOMEM;
- }
+ if (!vqs)
+ goto err_vqs;
vhost_work_init(&vs->vs_completion_work, vhost_scsi_complete_cmd_work);
vhost_work_init(&vs->vs_event_work, tcm_vhost_evt_work);
@@ -1407,14 +1416,18 @@ static int vhost_scsi_open(struct inode *inode, struct file *f)
tcm_vhost_init_inflight(vs, NULL);
- if (r < 0) {
- kfree(vqs);
- kfree(vs);
- return r;
- }
+ if (r < 0)
+ goto err_init;
f->private_data = vs;
return 0;
+
+err_init:
+ kfree(vqs);
+err_vqs:
+ vhost_scsi_free(vs);
+err_vs:
+ return r;
}
static int vhost_scsi_release(struct inode *inode, struct file *f)
@@ -1431,7 +1444,7 @@ static int vhost_scsi_release(struct inode *inode, struct file *f)
/* Jobs can re-queue themselves in evt kick handler. Do extra flush. */
vhost_scsi_flush(vs);
kfree(vs->dev.vqs);
- kfree(vs);
+ vhost_scsi_free(vs);
return 0;
}