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authorChuck Lever <chuck.lever@oracle.com>2019-12-23 10:28:33 -0500
committerAnna Schumaker <Anna.Schumaker@Netapp.com>2020-01-15 10:54:31 -0500
commit861e1671bc2eed063aa624cdb2be8cfff16331c9 (patch)
treebf4f52352c1c110a700a7ba2fbe6a121ababe6e6 /fs/nfs/write.c
parentabf8af78a61523c15d366228b4a598141208a264 (diff)
downloadlinux-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/write.c')
-rw-r--r--fs/nfs/write.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 52cab65f91cf..21787711e352 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -593,6 +593,7 @@ release_request:
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);
}