From 80ca099223abe1f0aae5c0f9945f36c1dceffa7c Mon Sep 17 00:00:00 2001 From: Benjamin Coddington Date: Tue, 16 Nov 2021 08:49:24 -0500 Subject: [PATCH] NFS: Add a tracepoint to show the results of nfs_set_cache_invalid() [ Upstream commit 93c2e5e0a9ecfc183ab1204e1ecaa7ee7eb2a61a ] This provides some insight into the client's invalidation behavior to show both when the client uses the helper, and the results of calling the helper which can vary depending on how the helper is called. Signed-off-by: Benjamin Coddington Signed-off-by: Trond Myklebust Stable-dep-of: 867da60d463b ("nfs: avoid i_lock contention in nfs_clear_invalid_mapping") Signed-off-by: Sasha Levin --- fs/nfs/inode.c | 1 + fs/nfs/nfstrace.h | 1 + 2 files changed, 2 insertions(+) diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c index 48ade92d4ce8c..3861cd056cec3 100644 --- a/fs/nfs/inode.c +++ b/fs/nfs/inode.c @@ -219,6 +219,7 @@ void nfs_set_cache_invalid(struct inode *inode, unsigned long flags) NFS_INO_DATA_INVAL_DEFER); else if (nfsi->cache_validity & NFS_INO_INVALID_DATA) nfsi->cache_validity &= ~NFS_INO_DATA_INVAL_DEFER; + trace_nfs_set_cache_invalid(inode, 0); } EXPORT_SYMBOL_GPL(nfs_set_cache_invalid); diff --git a/fs/nfs/nfstrace.h b/fs/nfs/nfstrace.h index 6804ca2efbf99..cbdfe091f56a6 100644 --- a/fs/nfs/nfstrace.h +++ b/fs/nfs/nfstrace.h @@ -162,6 +162,7 @@ DEFINE_NFS_INODE_EVENT_DONE(nfs_writeback_inode_exit); DEFINE_NFS_INODE_EVENT(nfs_fsync_enter); DEFINE_NFS_INODE_EVENT_DONE(nfs_fsync_exit); DEFINE_NFS_INODE_EVENT(nfs_access_enter); +DEFINE_NFS_INODE_EVENT_DONE(nfs_set_cache_invalid); TRACE_EVENT(nfs_access_exit, TP_PROTO( -- 2.47.3