@@ -989,6 +989,51 @@
)
);
+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
@@ -593,6 +593,7 @@ static void nfs_end_page_writeback(struct nfs_page *req)
static void nfs_write_error(struct nfs_page *req, int error)
{
nfs_set_pageerror(page_file_mapping(req->wb_page));
+ trace_nfs_write_error(req, error);
nfs_mapping_set_error(req->wb_page, error);
nfs_inode_remove_request(req);
nfs_end_page_writeback(req);
@@ -999,6 +1000,7 @@ static void nfs_write_completion(struct nfs_pgio_header *hdr)
if (test_bit(NFS_IOHDR_ERROR, &hdr->flags) &&
(hdr->good_bytes < bytes)) {
nfs_set_pageerror(page_file_mapping(req->wb_page));
+ trace_nfs_comp_error(req, hdr->error);
nfs_mapping_set_error(req->wb_page, hdr->error);
goto remove_req;
}
@@ -1847,6 +1849,7 @@ static void nfs_commit_release_pages(struct nfs_commit_data *data)
(long long)req_offset(req));
if (status < 0) {
if (req->wb_page) {
+ trace_nfs_commit_error(req, status);
nfs_mapping_set_error(req->wb_page, status);
nfs_inode_remove_request(req);
}
Try to capture the reason for the writeback path tagging an error on a page. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> --- fs/nfs/nfstrace.h | 45 +++++++++++++++++++++++++++++++++++++++++++++ fs/nfs/write.c | 3 +++ 2 files changed, 48 insertions(+)