Commit 8c206b0a authored by Jeff Layton's avatar Jeff Layton Committed by Trond Myklebust
Browse files

nfs: add cache_validity to the nfs_inode_event tracepoints 



Managing the cache_validity flags is the deep voodoo of NFS cache
coherency. Let's have a little extra visibility into that value via the
nfs_inode_event tracepoints.

Reviewed-by: default avatarBenjamin Coddington <bcodding@redhat.com>
Signed-off-by: default avatarJeff Layton <jlayton@kernel.org>
Link: https://lore.kernel.org/r/20250618-nfs-tracepoints-v2-1-540c9fb48da2@kernel.org


Signed-off-by: default avatarTrond Myklebust <trond.myklebust@hammerspace.com>
parent 2c665d91

fs/nfs/nfstrace.h

+6 −2
Original line number Diff line number Diff line
@@ -57,6 +57,7 @@ DECLARE_EVENT_CLASS(nfs_inode_event, 
			__field(u32, fhandle)

			__field(u64, fileid)

			__field(u64, version)

			__field(unsigned long, cache_validity)

		),



		TP_fast_assign(
@@ -65,14 +66,17 @@ DECLARE_EVENT_CLASS(nfs_inode_event, 
			__entry->fileid = nfsi->fileid;

			__entry->fhandle = nfs_fhandle_hash(&nfsi->fh);

			__entry->version = inode_peek_iversion_raw(inode);

			__entry->cache_validity = nfsi->cache_validity;

		),



		TP_printk(

			"fileid=%02x:%02x:%llu fhandle=0x%08x version=%llu ",

			"fileid=%02x:%02x:%llu fhandle=0x%08x version=%llu cache_validity=0x%lx (%s)",

			MAJOR(__entry->dev), MINOR(__entry->dev),

			(unsigned long long)__entry->fileid,

			__entry->fhandle,

			(unsigned long long)__entry->version

			(unsigned long long)__entry->version,

			__entry->cache_validity,

			nfs_show_cache_validity(__entry->cache_validity)

		)

);