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nfs: add a tracepoint to nfs_inode_detach_delegation_locked

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We have tracepoints for setting a delegation and reclaiming them. Add a
tracepoint for when the delegation is being detached from the inode.

Reviewed-by: Benjamin Coddington <bcodding@redhat.com>
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Link: https://lore.kernel.org/r/20250618-nfs-tracepoints-v2-2-540c9fb48da2@kernel.org
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
This commit is contained in:
Jeff Layton
2025-06-18 09:19:13 -04:00
committed by Trond Myklebust
parent 8c206b0a12
commit 0139a30ada
2 changed files with 3 additions and 0 deletions
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2
fs/nfs/delegation.c
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@@ -355,6 +355,8 @@ nfs_detach_delegation_locked(struct nfs_inode *nfsi,
rcu_dereference_protected(nfsi->delegation,
lockdep_is_held(&clp->cl_lock));
trace_nfs4_detach_delegation(&nfsi->vfs_inode, delegation->type);
if (deleg_cur == NULL || delegation != deleg_cur)
return NULL;

1
fs/nfs/nfs4trace.h
View File

@@ -983,6 +983,7 @@ DECLARE_EVENT_CLASS(nfs4_set_delegation_event,
TP_ARGS(inode, fmode))
DEFINE_NFS4_SET_DELEGATION_EVENT(nfs4_set_delegation);
DEFINE_NFS4_SET_DELEGATION_EVENT(nfs4_reclaim_delegation);
DEFINE_NFS4_SET_DELEGATION_EVENT(nfs4_detach_delegation);
TRACE_EVENT(nfs4_delegreturn_exit,
TP_PROTO(