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root / hw / 9pfs / coxattr.c @ 1de7afc9

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1	1ceffa54	Aneesh Kumar K.V
2	1ceffa54	Aneesh Kumar K.V	/*
3	1ceffa54	Aneesh Kumar K.V	* Virtio 9p backend
4	1ceffa54	Aneesh Kumar K.V	*
5	1ceffa54	Aneesh Kumar K.V	* Copyright IBM, Corp. 2011
6	1ceffa54	Aneesh Kumar K.V	*
7	1ceffa54	Aneesh Kumar K.V	* Authors:
8	1ceffa54	Aneesh Kumar K.V	* Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
9	1ceffa54	Aneesh Kumar K.V	*
10	1ceffa54	Aneesh Kumar K.V	* This work is licensed under the terms of the GNU GPL, version 2. See
11	1ceffa54	Aneesh Kumar K.V	* the COPYING file in the top-level directory.
12	1ceffa54	Aneesh Kumar K.V	*
13	1ceffa54	Aneesh Kumar K.V	*/
14	1ceffa54	Aneesh Kumar K.V
15	1ceffa54	Aneesh Kumar K.V	#include "fsdev/qemu-fsdev.h"
16	1de7afc9	Paolo Bonzini	#include "qemu/thread.h"
17	737e150e	Paolo Bonzini	#include "block/coroutine.h"
18	1ceffa54	Aneesh Kumar K.V	#include "virtio-9p-coth.h"
19	1ceffa54	Aneesh Kumar K.V
20	bccacf6c	Aneesh Kumar K.V	int v9fs_co_llistxattr(V9fsPDU pdu, V9fsPath path, void *value, size_t size)
21	1ceffa54	Aneesh Kumar K.V	{
22	1ceffa54	Aneesh Kumar K.V	int err;
23	bccacf6c	Aneesh Kumar K.V	V9fsState *s = pdu->s;
24	1ceffa54	Aneesh Kumar K.V
25	bccacf6c	Aneesh Kumar K.V	if (v9fs_request_cancelled(pdu)) {
26	bccacf6c	Aneesh Kumar K.V	return -EINTR;
27	bccacf6c	Aneesh Kumar K.V	}
28	532decb7	Aneesh Kumar K.V	v9fs_path_read_lock(s);
29	1ceffa54	Aneesh Kumar K.V	v9fs_co_run_in_worker(
30	1ceffa54	Aneesh Kumar K.V	{
31	2289be19	Aneesh Kumar K.V	err = s->ops->llistxattr(&s->ctx, path, value, size);
32	1ceffa54	Aneesh Kumar K.V	if (err < 0) {
33	1ceffa54	Aneesh Kumar K.V	err = -errno;
34	1ceffa54	Aneesh Kumar K.V	}
35	1ceffa54	Aneesh Kumar K.V	});
36	532decb7	Aneesh Kumar K.V	v9fs_path_unlock(s);
37	1ceffa54	Aneesh Kumar K.V	return err;
38	1ceffa54	Aneesh Kumar K.V	}
39	1ceffa54	Aneesh Kumar K.V
40	bccacf6c	Aneesh Kumar K.V	int v9fs_co_lgetxattr(V9fsPDU pdu, V9fsPath path,
41	1ceffa54	Aneesh Kumar K.V	V9fsString *xattr_name,
42	1ceffa54	Aneesh Kumar K.V	void *value, size_t size)
43	1ceffa54	Aneesh Kumar K.V	{
44	1ceffa54	Aneesh Kumar K.V	int err;
45	bccacf6c	Aneesh Kumar K.V	V9fsState *s = pdu->s;
46	1ceffa54	Aneesh Kumar K.V
47	bccacf6c	Aneesh Kumar K.V	if (v9fs_request_cancelled(pdu)) {
48	bccacf6c	Aneesh Kumar K.V	return -EINTR;
49	bccacf6c	Aneesh Kumar K.V	}
50	532decb7	Aneesh Kumar K.V	v9fs_path_read_lock(s);
51	1ceffa54	Aneesh Kumar K.V	v9fs_co_run_in_worker(
52	1ceffa54	Aneesh Kumar K.V	{
53	2289be19	Aneesh Kumar K.V	err = s->ops->lgetxattr(&s->ctx, path,
54	1ceffa54	Aneesh Kumar K.V	xattr_name->data,
55	1ceffa54	Aneesh Kumar K.V	value, size);
56	1ceffa54	Aneesh Kumar K.V	if (err < 0) {
57	1ceffa54	Aneesh Kumar K.V	err = -errno;
58	1ceffa54	Aneesh Kumar K.V	}
59	1ceffa54	Aneesh Kumar K.V	});
60	532decb7	Aneesh Kumar K.V	v9fs_path_unlock(s);
61	1ceffa54	Aneesh Kumar K.V	return err;
62	1ceffa54	Aneesh Kumar K.V	}
63	bed4352c	Aneesh Kumar K.V
64	bccacf6c	Aneesh Kumar K.V	int v9fs_co_lsetxattr(V9fsPDU pdu, V9fsPath path,
65	bed4352c	Aneesh Kumar K.V	V9fsString xattr_name, void value,
66	bed4352c	Aneesh Kumar K.V	size_t size, int flags)
67	bed4352c	Aneesh Kumar K.V	{
68	bed4352c	Aneesh Kumar K.V	int err;
69	bccacf6c	Aneesh Kumar K.V	V9fsState *s = pdu->s;
70	bed4352c	Aneesh Kumar K.V
71	bccacf6c	Aneesh Kumar K.V	if (v9fs_request_cancelled(pdu)) {
72	bccacf6c	Aneesh Kumar K.V	return -EINTR;
73	bccacf6c	Aneesh Kumar K.V	}
74	532decb7	Aneesh Kumar K.V	v9fs_path_read_lock(s);
75	bed4352c	Aneesh Kumar K.V	v9fs_co_run_in_worker(
76	bed4352c	Aneesh Kumar K.V	{
77	2289be19	Aneesh Kumar K.V	err = s->ops->lsetxattr(&s->ctx, path,
78	bed4352c	Aneesh Kumar K.V	xattr_name->data, value,
79	bed4352c	Aneesh Kumar K.V	size, flags);
80	bed4352c	Aneesh Kumar K.V	if (err < 0) {
81	bed4352c	Aneesh Kumar K.V	err = -errno;
82	bed4352c	Aneesh Kumar K.V	}
83	bed4352c	Aneesh Kumar K.V	});
84	532decb7	Aneesh Kumar K.V	v9fs_path_unlock(s);
85	bed4352c	Aneesh Kumar K.V	return err;
86	bed4352c	Aneesh Kumar K.V	}
87	bed4352c	Aneesh Kumar K.V
88	bccacf6c	Aneesh Kumar K.V	int v9fs_co_lremovexattr(V9fsPDU pdu, V9fsPath path,
89	bed4352c	Aneesh Kumar K.V	V9fsString *xattr_name)
90	bed4352c	Aneesh Kumar K.V	{
91	bed4352c	Aneesh Kumar K.V	int err;
92	bccacf6c	Aneesh Kumar K.V	V9fsState *s = pdu->s;
93	bed4352c	Aneesh Kumar K.V
94	bccacf6c	Aneesh Kumar K.V	if (v9fs_request_cancelled(pdu)) {
95	bccacf6c	Aneesh Kumar K.V	return -EINTR;
96	bccacf6c	Aneesh Kumar K.V	}
97	532decb7	Aneesh Kumar K.V	v9fs_path_read_lock(s);
98	bed4352c	Aneesh Kumar K.V	v9fs_co_run_in_worker(
99	bed4352c	Aneesh Kumar K.V	{
100	2289be19	Aneesh Kumar K.V	err = s->ops->lremovexattr(&s->ctx, path, xattr_name->data);
101	bed4352c	Aneesh Kumar K.V	if (err < 0) {
102	bed4352c	Aneesh Kumar K.V	err = -errno;
103	bed4352c	Aneesh Kumar K.V	}
104	bed4352c	Aneesh Kumar K.V	});
105	532decb7	Aneesh Kumar K.V	v9fs_path_unlock(s);
106	bed4352c	Aneesh Kumar K.V	return err;
107	bed4352c	Aneesh Kumar K.V	}

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root / hw / 9pfs / coxattr.c @ 1de7afc9