cifs: add new cifsiod_wq workqueue
...and convert existing cifs users of system_nrt_wq to use that instead.
Also, make it freezable, and set WQ_MEM_RECLAIM since we use it to
deal with write reply handling.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Acked-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com>
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index eee522c..d342128 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -85,6 +85,8 @@
extern mempool_t *cifs_req_poolp;
extern mempool_t *cifs_mid_poolp;
+struct workqueue_struct *cifsiod_wq;
+
static int
cifs_read_super(struct super_block *sb)
{
@@ -1111,9 +1113,15 @@
cFYI(1, "cifs_max_pending set to max of %u", CIFS_MAX_REQ);
}
+ cifsiod_wq = alloc_workqueue("cifsiod", WQ_FREEZABLE|WQ_MEM_RECLAIM, 0);
+ if (!cifsiod_wq) {
+ rc = -ENOMEM;
+ goto out_clean_proc;
+ }
+
rc = cifs_fscache_register();
if (rc)
- goto out_clean_proc;
+ goto out_destroy_wq;
rc = cifs_init_inodecache();
if (rc)
@@ -1161,6 +1169,8 @@
cifs_destroy_inodecache();
out_unreg_fscache:
cifs_fscache_unregister();
+out_destroy_wq:
+ destroy_workqueue(cifsiod_wq);
out_clean_proc:
cifs_proc_clean();
return rc;
@@ -1183,6 +1193,7 @@
cifs_destroy_mids();
cifs_destroy_inodecache();
cifs_fscache_unregister();
+ destroy_workqueue(cifsiod_wq);
cifs_proc_clean();
}