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nfs: add cache_validity to the nfs_inode_event tracepoints

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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: Benjamin Coddington <bcodding@redhat.com>
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Link: https://lore.kernel.org/r/20250618-nfs-tracepoints-v2-1-540c9fb48da2@kernel.org
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
This commit is contained in:
Jeff Layton 2025-06-18 09:19:12 -04:00 committed by Trond Myklebust
parent 2c665d91c2
commit 8c206b0a12
1 changed files with 6 additions and 2 deletions
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8
fs/nfs/nfstrace.h
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@ -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)
)
);