1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
|
/*
* GPL HEADER START
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 only,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License version 2 for more details (a copy is included
* in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU General Public License
* version 2 along with this program; If not, see
* http://www.gnu.org/licenses/gpl-2.0.html
*
* GPL HEADER END
*/
/*
* Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
* Copyright (c) 2011, 2014, Intel Corporation.
*/
#define DEBUG_SUBSYSTEM S_LLITE
#include "../include/lustre/lustre_idl.h"
#include "../include/cl_object.h"
#include "../include/obd.h"
#include "../include/obd_support.h"
#include "../include/lustre_lite.h"
#include "llite_internal.h"
#include "vvp_internal.h"
static inline struct vvp_req *cl2vvp_req(const struct cl_req_slice *slice)
{
return container_of0(slice, struct vvp_req, vrq_cl);
}
/**
* Implementation of struct cl_req_operations::cro_attr_set() for VVP
* layer. VVP is responsible for
*
* - o_[mac]time
*
* - o_mode
*
* - o_parent_seq
*
* - o_[ug]id
*
* - o_parent_oid
*
* - o_parent_ver
*
* - o_ioepoch,
*
*/
static void vvp_req_attr_set(const struct lu_env *env,
const struct cl_req_slice *slice,
const struct cl_object *obj,
struct cl_req_attr *attr, u64 flags)
{
struct inode *inode;
struct obdo *oa;
u32 valid_flags;
oa = attr->cra_oa;
inode = vvp_object_inode(obj);
valid_flags = OBD_MD_FLTYPE;
if (slice->crs_req->crq_type == CRT_WRITE) {
if (flags & OBD_MD_FLEPOCH) {
oa->o_valid |= OBD_MD_FLEPOCH;
oa->o_ioepoch = ll_i2info(inode)->lli_ioepoch;
valid_flags |= OBD_MD_FLMTIME | OBD_MD_FLCTIME |
OBD_MD_FLUID | OBD_MD_FLGID;
}
}
obdo_from_inode(oa, inode, valid_flags & flags);
obdo_set_parent_fid(oa, &ll_i2info(inode)->lli_fid);
memcpy(attr->cra_jobid, ll_i2info(inode)->lli_jobid,
JOBSTATS_JOBID_SIZE);
}
static void vvp_req_completion(const struct lu_env *env,
const struct cl_req_slice *slice, int ioret)
{
struct vvp_req *vrq;
if (ioret > 0)
cl_stats_tally(slice->crs_dev, slice->crs_req->crq_type, ioret);
vrq = cl2vvp_req(slice);
kmem_cache_free(vvp_req_kmem, vrq);
}
static const struct cl_req_operations vvp_req_ops = {
.cro_attr_set = vvp_req_attr_set,
.cro_completion = vvp_req_completion
};
int vvp_req_init(const struct lu_env *env, struct cl_device *dev,
struct cl_req *req)
{
struct vvp_req *vrq;
int result;
vrq = kmem_cache_zalloc(vvp_req_kmem, GFP_NOFS);
if (vrq) {
cl_req_slice_add(req, &vrq->vrq_cl, dev, &vvp_req_ops);
result = 0;
} else {
result = -ENOMEM;
}
return result;
}
|
