updated patch
—
>From 1f7963731ccbd2cd0f19d4f357c915e23d702d60 Mon Sep 17 00:00:00 2001
From: "Yan, Zheng" <zyan@xxxxxxxxxx>
Date: Wed, 12 Nov 2014 14:00:43 +0800
Subject: [PATCH 01/12] libceph: add SETXATTR/CMPXATTR osd operations support
Signed-off-by: Yan, Zheng <zyan@xxxxxxxxxx>
---
include/linux/ceph/osd_client.h | 10 +++++++++
net/ceph/osd_client.c | 47 +++++++++++++++++++++++++++++++++++++++++
2 files changed, 57 insertions(+)
diff --git a/include/linux/ceph/osd_client.h b/include/linux/ceph/osd_client.h
index 03aeb27..bcf9c21 100644
--- a/include/linux/ceph/osd_client.h
+++ b/include/linux/ceph/osd_client.h
@@ -87,6 +87,13 @@ struct ceph_osd_req_op {
struct ceph_osd_data osd_data;
} 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 {
const char *class_name;
const char *method_name;
struct ceph_osd_data request_info;
@@ -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,
unsigned int which, u16 opcode,
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,
unsigned int which, u16 opcode,
u64 cookie, u64 version, int flag);
diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c
index 1f6c405..489c830 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));
--
1.9.3
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