diff mbox series

[6/8] NFSv4: Avoid unnecessary credential references in layoutget

Message ID 20200210191345.557460-7-trond.myklebust@hammerspace.com (mailing list archive)
State New, archived
Headers show
Series Reduce the refcount pressure of NFS on struct cred | expand

Commit Message

Trond Myklebust Feb. 10, 2020, 7:13 p.m. UTC 
Layoutget is just using the credential attached to the open context.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
---
 fs/nfs/nfs4proc.c | 2 +-
 fs/nfs/pnfs.c     | 3 +--
 2 files changed, 2 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 47464fb419dc..7f5802b6d404 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -9177,7 +9177,7 @@  nfs4_proc_layoutget(struct nfs4_layoutget *lgp, long *timeout)
 		.rpc_message = &msg,
 		.callback_ops = &nfs4_layoutget_call_ops,
 		.callback_data = lgp,
-		.flags = RPC_TASK_ASYNC,
+		.flags = RPC_TASK_ASYNC | RPC_TASK_CRED_NOREF,
 	};
 	struct pnfs_layout_segment *lseg = NULL;
 	struct nfs4_exception exception = {
diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c
index b21eb4882846..cb99ac954688 100644
--- a/fs/nfs/pnfs.c
+++ b/fs/nfs/pnfs.c
@@ -1073,7 +1073,7 @@  pnfs_alloc_init_layoutget_args(struct inode *ino,
 	lgp->args.ctx = get_nfs_open_context(ctx);
 	nfs4_stateid_copy(&lgp->args.stateid, stateid);
 	lgp->gfp_flags = gfp_flags;
-	lgp->cred = get_cred(ctx->cred);
+	lgp->cred = ctx->cred;
 	return lgp;
 }
 
@@ -1084,7 +1084,6 @@  void pnfs_layoutget_free(struct nfs4_layoutget *lgp)
 	nfs4_free_pages(lgp->args.layout.pages, max_pages);
 	if (lgp->args.inode)
 		pnfs_put_layout_hdr(NFS_I(lgp->args.inode)->layout);
-	put_cred(lgp->cred);
 	put_nfs_open_context(lgp->args.ctx);
 	kfree(lgp);
 }