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| author | Chuck Lever <chuck.lever@oracle.com> | 2019-12-23 10:28:33 -0500 |
|---|---|---|
| committer | Anna Schumaker <Anna.Schumaker@Netapp.com> | 2020-01-15 10:54:31 -0500 |
| commit | 861e1671bc2eed063aa624cdb2be8cfff16331c9 (patch) | |
| tree | bf4f52352c1c110a700a7ba2fbe6a121ababe6e6 /fs/nfs/nfstrace.h | |
| parent | abf8af78a61523c15d366228b4a598141208a264 (diff) | |
| download | linux-861e1671bc2eed063aa624cdb2be8cfff16331c9.tar.bz2 | |
NFS: Introduce trace events triggered by page writeback errors
Try to capture the reason for the writeback path tagging an error on
a page.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'fs/nfs/nfstrace.h')
| -rw-r--r-- | fs/nfs/nfstrace.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/fs/nfs/nfstrace.h b/fs/nfs/nfstrace.h index f64a33d2a1d1..4d6eb1703943 100644 --- a/fs/nfs/nfstrace.h +++ b/fs/nfs/nfstrace.h @@ -989,6 +989,51 @@ TRACE_EVENT(nfs_writeback_done, ) ); +DECLARE_EVENT_CLASS(nfs_page_error_class, + TP_PROTO( + const struct nfs_page *req, + int error + ), + + TP_ARGS(req, error), + + TP_STRUCT__entry( + __field(const void *, req) + __field(pgoff_t, index) + __field(unsigned int, offset) + __field(unsigned int, pgbase) + __field(unsigned int, bytes) + __field(int, error) + ), + + TP_fast_assign( + __entry->req = req; + __entry->index = req->wb_index; + __entry->offset = req->wb_offset; + __entry->pgbase = req->wb_pgbase; + __entry->bytes = req->wb_bytes; + __entry->error = error; + ), + + TP_printk( + "req=%p index=%lu offset=%u pgbase=%u bytes=%u error=%d", + __entry->req, __entry->index, __entry->offset, + __entry->pgbase, __entry->bytes, __entry->error + ) +); + +#define DEFINE_NFS_PAGEERR_EVENT(name) \ + DEFINE_EVENT(nfs_page_error_class, name, \ + TP_PROTO( \ + const struct nfs_page *req, \ + int error \ + ), \ + TP_ARGS(req, error)) + +DEFINE_NFS_PAGEERR_EVENT(nfs_write_error); +DEFINE_NFS_PAGEERR_EVENT(nfs_comp_error); +DEFINE_NFS_PAGEERR_EVENT(nfs_commit_error); + TRACE_EVENT(nfs_initiate_commit, TP_PROTO( const struct nfs_commit_data *data |