aboutsummaryrefslogtreecommitdiff
path: root/hw/9pfs/coxattr.c
blob: 18ee08df0f5fc386a563526b86e44666938c5c14 (plain)
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

/*
 * Virtio 9p backend
 *
 * Copyright IBM, Corp. 2011
 *
 * Authors:
 *  Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
 *
 * This work is licensed under the terms of the GNU GPL, version 2.  See
 * the COPYING file in the top-level directory.
 *
 */

#include "fsdev/qemu-fsdev.h"
#include "qemu/thread.h"
#include "block/coroutine.h"
#include "virtio-9p-coth.h"

int v9fs_co_llistxattr(V9fsPDU *pdu, V9fsPath *path, void *value, size_t size)
{
    int err;
    V9fsState *s = pdu->s;

    if (v9fs_request_cancelled(pdu)) {
        return -EINTR;
    }
    v9fs_path_read_lock(s);
    v9fs_co_run_in_worker(
        {
            err = s->ops->llistxattr(&s->ctx, path, value, size);
            if (err < 0) {
                err = -errno;
            }
        });
    v9fs_path_unlock(s);
    return err;
}

int v9fs_co_lgetxattr(V9fsPDU *pdu, V9fsPath *path,
                      V9fsString *xattr_name,
                      void *value, size_t size)
{
    int err;
    V9fsState *s = pdu->s;

    if (v9fs_request_cancelled(pdu)) {
        return -EINTR;
    }
    v9fs_path_read_lock(s);
    v9fs_co_run_in_worker(
        {
            err = s->ops->lgetxattr(&s->ctx, path,
                                    xattr_name->data,
                                    value, size);
            if (err < 0) {
                err = -errno;
            }
        });
    v9fs_path_unlock(s);
    return err;
}

int v9fs_co_lsetxattr(V9fsPDU *pdu, V9fsPath *path,
                      V9fsString *xattr_name, void *value,
                      size_t size, int flags)
{
    int err;
    V9fsState *s = pdu->s;

    if (v9fs_request_cancelled(pdu)) {
        return -EINTR;
    }
    v9fs_path_read_lock(s);
    v9fs_co_run_in_worker(
        {
            err = s->ops->lsetxattr(&s->ctx, path,
                                    xattr_name->data, value,
                                    size, flags);
            if (err < 0) {
                err = -errno;
            }
        });
    v9fs_path_unlock(s);
    return err;
}

int v9fs_co_lremovexattr(V9fsPDU *pdu, V9fsPath *path,
                         V9fsString *xattr_name)
{
    int err;
    V9fsState *s = pdu->s;

    if (v9fs_request_cancelled(pdu)) {
        return -EINTR;
    }
    v9fs_path_read_lock(s);
    v9fs_co_run_in_worker(
        {
            err = s->ops->lremovexattr(&s->ctx, path, xattr_name->data);
            if (err < 0) {
                err = -errno;
            }
        });
    v9fs_path_unlock(s);
    return err;
}