From: Niu Yawei <yawei....@intel.com> ll_migrate() should check reply status before trying to read reply buffer, checking if request is NULL doesn't make sense.
Signed-off-by: Niu Yawei <yawei....@intel.com> Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-8807 Reviewed-on: https://review.whamcloud.com/23666 Reviewed-by: Andreas Dilger <andreas.dil...@intel.com> Reviewed-by: Lai Siyao <lai.si...@intel.com> Reviewed-by: John L. Hammond <john.hamm...@intel.com> Reviewed-by: Oleg Drokin <oleg.dro...@intel.com> Signed-off-by: James Simmons <jsimm...@infradead.org> --- drivers/staging/lustre/lustre/llite/file.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/drivers/staging/lustre/lustre/llite/file.c b/drivers/staging/lustre/lustre/llite/file.c index 271608d..10adfcd 100644 --- a/drivers/staging/lustre/lustre/llite/file.c +++ b/drivers/staging/lustre/lustre/llite/file.c @@ -2664,15 +2664,12 @@ int ll_migrate(struct inode *parent, struct file *file, int mdtidx, op_data->op_cli_flags = CLI_MIGRATE; rc = md_rename(ll_i2sbi(parent)->ll_md_exp, op_data, name, namelen, name, namelen, &request); - if (!rc) + if (!rc) { + LASSERT(request); ll_update_times(request, parent); - if (request) { body = req_capsule_server_get(&request->rq_pill, &RMF_MDT_BODY); - if (!body) { - rc = -EPROTO; - goto out_close; - } + LASSERT(body); /* * If the server does release layout lock, then we cleanup @@ -2686,14 +2683,17 @@ int ll_migrate(struct inode *parent, struct file *file, int mdtidx, kfree(och); och = NULL; } + } + if (request) { ptlrpc_req_finished(request); + request = NULL; } + /* Try again if the file layout has changed. */ - if (rc == -EAGAIN && S_ISREG(child_inode->i_mode)) { - request = NULL; + if (rc == -EAGAIN && S_ISREG(child_inode->i_mode)) goto again; - } + out_close: if (och) /* close the file */ ll_lease_close(och, child_inode, NULL); -- 1.8.3.1 _______________________________________________ devel mailing list de...@linuxdriverproject.org http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
