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libceph: add SETXATTR/CMPXATTR osd operations support

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Signed-off-by: Yan, Zheng <zyan@redhat.com>
Reviewed-by: Ilya Dryomov <idryomov@redhat.com>
This commit is contained in:
Yan, Zheng 2014-11-12 14:00:43 +08:00 committed by Ilya Dryomov
parent 7e868b6eff
commit d74b50bed0
2 changed files with 57 additions and 0 deletions
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10
include/linux/ceph/osd_client.h
View File

@ -86,6 +86,13 @@ struct ceph_osd_req_op {
u32 truncate_seq; u32 truncate_seq;
struct ceph_osd_data osd_data; struct ceph_osd_data osd_data;
} extent; } extent;
struct {
__le32 name_len;
__le32 value_len;
__u8 cmp_op; /* CEPH_OSD_CMPXATTR_OP_* */
__u8 cmp_mode; /* CEPH_OSD_CMPXATTR_MODE_* */
struct ceph_osd_data osd_data;
} xattr;
struct { struct {
const char *class_name; const char *class_name;
const char *method_name; const char *method_name;
@ -295,6 +302,9 @@ extern void osd_req_op_cls_response_data_pages(struct ceph_osd_request *,
extern void osd_req_op_cls_init(struct ceph_osd_request *osd_req, extern void osd_req_op_cls_init(struct ceph_osd_request *osd_req,
unsigned int which, u16 opcode, unsigned int which, u16 opcode,
const char *class, const char *method); const char *class, const char *method);
extern 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);
extern void osd_req_op_watch_init(struct ceph_osd_request *osd_req, extern void osd_req_op_watch_init(struct ceph_osd_request *osd_req,
unsigned int which, u16 opcode, unsigned int which, u16 opcode,
u64 cookie, u64 version, int flag); u64 cookie, u64 version, int flag);

47
net/ceph/osd_client.c
View File

@ -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.request_data);
ceph_osd_data_release(&op->cls.response_data); ceph_osd_data_release(&op->cls.response_data);
break; break;
case CEPH_OSD_OP_SETXATTR:
case CEPH_OSD_OP_CMPXATTR:
ceph_osd_data_release(&op->xattr.osd_data);
break;
default: default:
break; 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); 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, void osd_req_op_watch_init(struct ceph_osd_request *osd_req,
unsigned int which, u16 opcode, unsigned int which, u16 opcode,
u64 cookie, u64 version, int flag) 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 = dst->alloc_hint.expected_write_size =
cpu_to_le64(src->alloc_hint.expected_write_size); cpu_to_le64(src->alloc_hint.expected_write_size);
break; 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: default:
pr_err("unsupported osd opcode %s\n", pr_err("unsupported osd opcode %s\n",
ceph_osd_op_name(src->op)); ceph_osd_op_name(src->op));