Commit c67587a7 authored Feb 01, 2015 by Lai Siyao Committed by Greg Kroah-Hartman Feb 07, 2015

staging/lustre/llite: don't add to page cache upon failure



Reading directory pages may fail on MDS, in this case client should
not cache a non-up-to-date directory page, because it will cause
a later read on the same page fail.

Signed-off-by: Lai Siyao <lai.siyao@intel.com>
Signed-off-by: Oleg Drokin <oleg.drokin@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5461
Reviewed-on: http://review.whamcloud.com/11450


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 437dfb20

drivers/staging/lustre/lustre/llite/dir.c

+4 −1

Original line number	Diff line number	Diff line
		@@ -183,7 +183,10 @@ static int ll_dir_filler(void _hash, struct page page0)
		op_data->op_offset = hash;
		rc = md_readpage(exp, op_data, page_pool, &request);
		ll_finish_md_op_data(op_data);
		if (rc == 0) {
		if (rc < 0) {
		/* page0 is special, which was added into page cache early */
		delete_from_page_cache(page0);
		} else if (rc == 0) {
		body = req_capsule_server_get(&request->rq_pill, &RMF_MDT_BODY);
		/* Checked by mdc_readpage() */
		LASSERT(body != NULL);

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