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NFS: Add a tracepoint to show the results of nfs_set_cache_invalid()

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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 <bcodding@redhat.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
This commit is contained in:
Benjamin Coddington 2021-11-16 08:49:24 -05:00 committed by Trond Myklebust
parent d3c45824ad
commit 93c2e5e0a9
2 changed files with 2 additions and 0 deletions
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1
fs/nfs/inode.c
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@ -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);

1
fs/nfs/nfstrace.h
View File

@ -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(