This is a note to let you know that I've just added the patch titled
NFS: Add a tracepoint to show the results of nfs_set_cache_invalid()
to the 5.15-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:
nfs-add-a-tracepoint-to-show-the-results-of-nfs_set_.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit e9ff8000e2e63571ec40b2ab8fb6b54679412784
Author: Benjamin Coddington <bcodding@xxxxxxxxxx>
Date: Tue Nov 16 08:49:24 2021 -0500
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 <bcodding@xxxxxxxxxx>
Signed-off-by: Trond Myklebust <trond.myklebust@xxxxxxxxxxxxxxx>
Stable-dep-of: 867da60d463b ("nfs: avoid i_lock contention in nfs_clear_invalid_mapping")
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
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(
