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| author | Chengguang Xu <cgxu519@gmx.com> | 2018-04-12 06:04:55 +0200 |
|---|---|---|
| committer | Ilya Dryomov <idryomov@gmail.com> | 2018-06-04 20:45:54 +0200 |
| commit | fe943d50425b6646606f8ef1ef8b8d4975fdbee2 (patch) | |
| tree | 4e2ecd6eb4ba41fa02a7761d99348e13c9ad5212 /drivers/block | |
| parent | Linux 4.17 (diff) | |
| download | linux-fe943d50425b6646606f8ef1ef8b8d4975fdbee2.tar.xz linux-fe943d50425b6646606f8ef1ef8b8d4975fdbee2.zip | |
libceph, rbd: add error handling for osd_req_op_cls_init()
Add proper error handling for osd_req_op_cls_init() to replace
BUG_ON statement when failing from memory allocation.
Signed-off-by: Chengguang Xu <cgxu519@gmx.com>
Reviewed-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Diffstat (limited to 'drivers/block')
| -rw-r--r-- | drivers/block/rbd.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index 33b36fea1d73..ac57bc0f6fca 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -2339,6 +2339,7 @@ static bool is_zero_bvecs(struct bio_vec *bvecs, u32 bytes) static int rbd_obj_issue_copyup(struct rbd_obj_request *obj_req, u32 bytes) { unsigned int num_osd_ops = obj_req->osd_req->r_num_ops; + int ret; dout("%s obj_req %p bytes %u\n", __func__, obj_req, bytes); rbd_assert(obj_req->osd_req->r_ops[0].op == CEPH_OSD_OP_STAT); @@ -2353,6 +2354,11 @@ static int rbd_obj_issue_copyup(struct rbd_obj_request *obj_req, u32 bytes) if (!obj_req->osd_req) return -ENOMEM; + ret = osd_req_op_cls_init(obj_req->osd_req, 0, CEPH_OSD_OP_CALL, "rbd", + "copyup"); + if (ret) + return ret; + /* * Only send non-zero copyup data to save some I/O and network * bandwidth -- zero copyup data is equivalent to the object not @@ -2362,9 +2368,6 @@ static int rbd_obj_issue_copyup(struct rbd_obj_request *obj_req, u32 bytes) dout("%s obj_req %p detected zeroes\n", __func__, obj_req); bytes = 0; } - - osd_req_op_cls_init(obj_req->osd_req, 0, CEPH_OSD_OP_CALL, "rbd", - "copyup"); osd_req_op_cls_request_data_bvecs(obj_req->osd_req, 0, obj_req->copyup_bvecs, obj_req->copyup_bvec_count, |