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authorYan, Zheng <zyan@redhat.com>2014-11-12 14:00:43 +0800
committerIlya Dryomov <idryomov@redhat.com>2014-12-17 20:09:51 +0300
commitd74b50bed037794135cb5a4e7418ad71d9848ce1 (patch)
tree6f202861df8a6d21fd6ddb7c8823e49c744a2970 /net/ceph
parent7e868b6eff21edb59eb6a723dfd18761476ddb46 (diff)
libceph: add SETXATTR/CMPXATTR osd operations support
Signed-off-by: Yan, Zheng <zyan@redhat.com> Reviewed-by: Ilya Dryomov <idryomov@redhat.com>
Diffstat (limited to 'net/ceph')
-rw-r--r--net/ceph/osd_client.c47
1 files changed, 47 insertions, 0 deletions
diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c
index 1f6c4055adaf..2b0555b36e4d 100644
--- a/net/ceph/osd_client.c
+++ b/net/ceph/osd_client.c
@@ -292,6 +292,10 @@ static void osd_req_op_data_release(struct ceph_osd_request *osd_req,
ceph_osd_data_release(&op->cls.request_data);
ceph_osd_data_release(&op->cls.response_data);
break;
+ case CEPH_OSD_OP_SETXATTR:
+ case CEPH_OSD_OP_CMPXATTR:
+ ceph_osd_data_release(&op->xattr.osd_data);
+ break;
default:
break;
}
@@ -545,6 +549,39 @@ void osd_req_op_cls_init(struct ceph_osd_request *osd_req, unsigned int which,
}
EXPORT_SYMBOL(osd_req_op_cls_init);
+int osd_req_op_xattr_init(struct ceph_osd_request *osd_req, unsigned int which,
+ u16 opcode, const char *name, const void *value,
+ size_t size, u8 cmp_op, u8 cmp_mode)
+{
+ struct ceph_osd_req_op *op = _osd_req_op_init(osd_req, which, opcode);
+ struct ceph_pagelist *pagelist;
+ size_t payload_len;
+
+ BUG_ON(opcode != CEPH_OSD_OP_SETXATTR && opcode != CEPH_OSD_OP_CMPXATTR);
+
+ pagelist = kmalloc(sizeof(*pagelist), GFP_NOFS);
+ if (!pagelist)
+ return -ENOMEM;
+
+ ceph_pagelist_init(pagelist);
+
+ payload_len = strlen(name);
+ op->xattr.name_len = payload_len;
+ ceph_pagelist_append(pagelist, name, payload_len);
+
+ op->xattr.value_len = size;
+ ceph_pagelist_append(pagelist, value, size);
+ payload_len += size;
+
+ op->xattr.cmp_op = cmp_op;
+ op->xattr.cmp_mode = cmp_mode;
+
+ ceph_osd_data_pagelist_init(&op->xattr.osd_data, pagelist);
+ op->payload_len = payload_len;
+ return 0;
+}
+EXPORT_SYMBOL(osd_req_op_xattr_init);
+
void osd_req_op_watch_init(struct ceph_osd_request *osd_req,
unsigned int which, u16 opcode,
u64 cookie, u64 version, int flag)
@@ -676,6 +713,16 @@ static u64 osd_req_encode_op(struct ceph_osd_request *req,
dst->alloc_hint.expected_write_size =
cpu_to_le64(src->alloc_hint.expected_write_size);
break;
+ case CEPH_OSD_OP_SETXATTR:
+ case CEPH_OSD_OP_CMPXATTR:
+ dst->xattr.name_len = cpu_to_le32(src->xattr.name_len);
+ dst->xattr.value_len = cpu_to_le32(src->xattr.value_len);
+ dst->xattr.cmp_op = src->xattr.cmp_op;
+ dst->xattr.cmp_mode = src->xattr.cmp_mode;
+ osd_data = &src->xattr.osd_data;
+ ceph_osdc_msg_data_add(req->r_request, osd_data);
+ request_data_len = osd_data->pagelist->length;
+ break;
default:
pr_err("unsupported osd opcode %s\n",
ceph_osd_op_name(src->op));

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