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NFS: Pass error information to the pgio error cleanup routine

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Allow the caller to pass error information when cleaning up a failed
I/O request so that we can conditionally take action to cancel the
request altogether if the error turned out to be fatal.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
This commit is contained in:
Trond Myklebust
2019-02-13 10:39:39 -05:00
parent 078b5fd92c
commit df3accb849
5 changed files with 16 additions and 8 deletions
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11
fs/nfs/write.c
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@@ -1412,20 +1412,27 @@ static void nfs_redirty_request(struct nfs_page *req)
nfs_release_request(req);
}
static void nfs_async_write_error(struct list_head *head)
static void nfs_async_write_error(struct list_head *head, int error)
{
struct nfs_page *req;
while (!list_empty(head)) {
req = nfs_list_entry(head->next);
nfs_list_remove_request(req);
if (nfs_error_is_fatal(error)) {
nfs_context_set_write_error(req->wb_context, error);
if (nfs_error_is_fatal_on_server(error)) {
nfs_write_error_remove_page(req);
continue;
}
}
nfs_redirty_request(req);
}
}
static void nfs_async_write_reschedule_io(struct nfs_pgio_header *hdr)
{
nfs_async_write_error(&hdr->pages);
nfs_async_write_error(&hdr->pages, 0);
filemap_fdatawrite_range(hdr->inode->i_mapping, hdr->args.offset,
hdr->args.offset + hdr->args.count - 1);
}