Patch "NFSD: Add nfsd4_send_cb_offload()" has been added to the 5.10-stable tree

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This is a note to let you know that I've just added the patch titled

    NFSD: Add nfsd4_send_cb_offload()

to the 5.10-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     nfsd-add-nfsd4_send_cb_offload.patch
and it can be found in the queue-5.10 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit ea7c2e2c84fabff93a8f6f52a87b1780b9b8c641
Author: Chuck Lever <chuck.lever@xxxxxxxxxx>
Date:   Wed Jul 27 14:41:12 2022 -0400

    NFSD: Add nfsd4_send_cb_offload()
    
    [ Upstream commit e72f9bc006c08841c46d27747a4debc747a8fe13 ]
    
    Refactor for legibility.
    
    Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index dbc507c9aa11b..332fd1d0b188d 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -1753,6 +1753,27 @@ static void cleanup_async_copy(struct nfsd4_copy *copy)
 	nfs4_put_copy(copy);
 }
 
+static void nfsd4_send_cb_offload(struct nfsd4_copy *copy)
+{
+	struct nfsd4_copy *cb_copy;
+
+	cb_copy = kzalloc(sizeof(struct nfsd4_copy), GFP_KERNEL);
+	if (!cb_copy)
+		return;
+
+	refcount_set(&cb_copy->refcount, 1);
+	memcpy(&cb_copy->cp_res, &copy->cp_res, sizeof(copy->cp_res));
+	cb_copy->cp_clp = copy->cp_clp;
+	cb_copy->nfserr = copy->nfserr;
+	memcpy(&cb_copy->fh, &copy->fh, sizeof(copy->fh));
+
+	nfsd4_init_cb(&cb_copy->cp_cb, cb_copy->cp_clp,
+			&nfsd4_cb_offload_ops, NFSPROC4_CLNT_CB_OFFLOAD);
+	trace_nfsd_cb_offload(copy->cp_clp, &copy->cp_res.cb_stateid,
+			      &copy->fh, copy->cp_count, copy->nfserr);
+	nfsd4_run_cb(&cb_copy->cp_cb);
+}
+
 /**
  * nfsd4_do_async_copy - kthread function for background server-side COPY
  * @data: arguments for COPY operation
@@ -1763,7 +1784,6 @@ static void cleanup_async_copy(struct nfsd4_copy *copy)
 static int nfsd4_do_async_copy(void *data)
 {
 	struct nfsd4_copy *copy = (struct nfsd4_copy *)data;
-	struct nfsd4_copy *cb_copy;
 
 	if (nfsd4_ssc_is_inter(copy)) {
 		struct file *filp;
@@ -1785,20 +1805,7 @@ static int nfsd4_do_async_copy(void *data)
 	}
 
 do_callback:
-	cb_copy = kzalloc(sizeof(struct nfsd4_copy), GFP_KERNEL);
-	if (!cb_copy)
-		goto out;
-	refcount_set(&cb_copy->refcount, 1);
-	memcpy(&cb_copy->cp_res, &copy->cp_res, sizeof(copy->cp_res));
-	cb_copy->cp_clp = copy->cp_clp;
-	cb_copy->nfserr = copy->nfserr;
-	memcpy(&cb_copy->fh, &copy->fh, sizeof(copy->fh));
-	nfsd4_init_cb(&cb_copy->cp_cb, cb_copy->cp_clp,
-			&nfsd4_cb_offload_ops, NFSPROC4_CLNT_CB_OFFLOAD);
-	trace_nfsd_cb_offload(copy->cp_clp, &copy->cp_res.cb_stateid,
-			      &copy->fh, copy->cp_count, copy->nfserr);
-	nfsd4_run_cb(&cb_copy->cp_cb);
-out:
+	nfsd4_send_cb_offload(copy);
 	cleanup_async_copy(copy);
 	return 0;
 }




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