From: Oleg Drokin Date: Sun, 19 Jun 2016 22:07:17 -0400 Subject: [lustre-devel] [PATCH 02/28] staging/lustre/llite: correct request handling after ll_lookup_it() In-Reply-To: <1466388463-1817551-1-git-send-email-green@linuxhacker.ru> References: <1466388463-1817551-1-git-send-email-green@linuxhacker.ru> Message-ID: <1466388463-1817551-3-git-send-email-green@linuxhacker.ru> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Greg Kroah-Hartman , devel@driverdev.osuosl.org, Andreas Dilger Cc: Linux Kernel Mailing List , Lustre Development List , "John L. Hammond" , Oleg Drokin From: "John L. Hammond" In the FIFO cases of ll_atomic_open() and ll_lookup_nd() remove spurious calls to ptlrpc_req_finished(). Explain that these cases are unreachable in practice anyway. Signed-off-by: John L. Hammond Reviewed-on: http://review.whamcloud.com/17068 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-7402 Reviewed-by: Dmitry Eremin Reviewed-by: Lai Siyao Signed-off-by: Oleg Drokin --- drivers/staging/lustre/lustre/llite/namei.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) diff --git a/drivers/staging/lustre/lustre/llite/namei.c b/drivers/staging/lustre/lustre/llite/namei.c index d7459bd..6414d52 100644 --- a/drivers/staging/lustre/lustre/llite/namei.c +++ b/drivers/staging/lustre/lustre/llite/namei.c @@ -622,13 +622,10 @@ static int ll_atomic_open(struct inode *dir, struct dentry *dentry, if (d_really_is_positive(dentry) && it_disposition(it, DISP_OPEN_OPEN)) { /* Open dentry. */ if (S_ISFIFO(d_inode(dentry)->i_mode)) { - /* We cannot call open here as it would - * deadlock. + /* We cannot call open here as it might + * deadlock. This case is unreachable in + * practice because of OBD_CONNECT_NODEVOH. */ - if (it_disposition(it, DISP_ENQ_OPEN_REF)) - ptlrpc_req_finished( - (struct ptlrpc_request *) - it->d.lustre.it_data); rc = finish_no_open(file, de); } else { file->private_data = it; -- 2.7.4