From 7b0a17f5f68a22b960a335dbfe7c1fd93a57506f Mon Sep 17 00:00:00 2001 From: wang di Date: Sat, 11 Feb 2017 12:12:37 -0500 Subject: [PATCH] staging: lustre: llite: check request != NULL in ll_migrate Check if the request is NULL, before retrieve reply body from the request. Signed-off-by: wang di Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-7396 Reviewed-on: http://review.whamcloud.com/17079 Reviewed-by: John L. Hammond Reviewed-by: Andreas Dilger Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman --- drivers/staging/lustre/lustre/llite/file.c | 41 +++++++++++++++++------------- 1 file changed, 23 insertions(+), 18 deletions(-) diff --git a/drivers/staging/lustre/lustre/llite/file.c b/drivers/staging/lustre/lustre/llite/file.c index 9870901..0c83bd7 100644 --- a/drivers/staging/lustre/lustre/llite/file.c +++ b/drivers/staging/lustre/lustre/llite/file.c @@ -2667,28 +2667,33 @@ again: if (!rc) ll_update_times(request, parent); - body = req_capsule_server_get(&request->rq_pill, &RMF_MDT_BODY); - if (!body) { - rc = -EPROTO; - goto out_free; - } + if (request) { + body = req_capsule_server_get(&request->rq_pill, &RMF_MDT_BODY); + if (!body) { + rc = -EPROTO; + goto out_free; + } - /* - * If the server does release layout lock, then we cleanup - * the client och here, otherwise release it in out_free: - */ - if (och && body->mbo_valid & OBD_MD_CLOSE_INTENT_EXECED) { - obd_mod_put(och->och_mod); - md_clear_open_replay_data(ll_i2sbi(parent)->ll_md_exp, och); - och->och_fh.cookie = DEAD_HANDLE_MAGIC; - kfree(och); - och = NULL; - } + /* + * If the server does release layout lock, then we cleanup + * the client och here, otherwise release it in out_free: + */ + if (och && body->mbo_valid & OBD_MD_CLOSE_INTENT_EXECED) { + obd_mod_put(och->och_mod); + md_clear_open_replay_data(ll_i2sbi(parent)->ll_md_exp, + och); + och->och_fh.cookie = DEAD_HANDLE_MAGIC; + kfree(och); + och = NULL; + } - ptlrpc_req_finished(request); + ptlrpc_req_finished(request); + } /* Try again if the file layout has changed. */ - if (rc == -EAGAIN && S_ISREG(child_inode->i_mode)) + if (rc == -EAGAIN && S_ISREG(child_inode->i_mode)) { + request = NULL; goto again; + } out_free: if (child_inode) { if (och) /* close the file */ -- 2.7.4