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| author |   Trond Myklebust <trond.myklebust@hammerspace.com> | 2019-11-01 15:33:55 -0400 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@hammerspace.com> | 2019-11-03 21:28:46 -0500 |
| commit | 43622eab8d0adedbb06380a355b941289d495f57 (patch) | |
| tree | b2c45df71d9cc0237d6afacc3e34a92845cfa5ae /fs/nfs/nfstrace.h | |
| parent | NFSv4: Don't retry the GETATTR on old stateid in nfs4_delegreturn_done() (diff) | |
| download | linux-dev-43622eab8d0adedbb06380a355b941289d495f57.tar.xz linux-dev-43622eab8d0adedbb06380a355b941289d495f57.zip | |
NFS: Add a tracepoint in nfs_fh_to_dentry()
Add a tracepoint in nfs_fh_to_dentry() for debugging issues with bad
userspace filehandles.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Diffstat (limited to 'fs/nfs/nfstrace.h')
| -rw-r--r-- | fs/nfs/nfstrace.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/fs/nfs/nfstrace.h b/fs/nfs/nfstrace.h index 361cc10d6f95..f64a33d2a1d1 100644 --- a/fs/nfs/nfstrace.h +++ b/fs/nfs/nfstrace.h @@ -1065,6 +1065,39 @@ TRACE_EVENT(nfs_commit_done, ) ); +TRACE_EVENT(nfs_fh_to_dentry, + TP_PROTO( + const struct super_block *sb, + const struct nfs_fh *fh, + u64 fileid, + int error + ), + + TP_ARGS(sb, fh, fileid, error), + + TP_STRUCT__entry( + __field(int, error) + __field(dev_t, dev) + __field(u32, fhandle) + __field(u64, fileid) + ), + + TP_fast_assign( + __entry->error = error; + __entry->dev = sb->s_dev; + __entry->fileid = fileid; + __entry->fhandle = nfs_fhandle_hash(fh); + ), + + TP_printk( + "error=%d fileid=%02x:%02x:%llu fhandle=0x%08x ", + __entry->error, + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long long)__entry->fileid, + __entry->fhandle + ) +); + TRACE_DEFINE_ENUM(NFS_OK); TRACE_DEFINE_ENUM(NFSERR_PERM); TRACE_DEFINE_ENUM(NFSERR_NOENT); |