root / block / raw-win32.c @ 7371d56f
History | View | Annotate | Download (15.6 kB)
1 |
/*
|
---|---|
2 |
* Block driver for RAW files (win32)
|
3 |
*
|
4 |
* Copyright (c) 2006 Fabrice Bellard
|
5 |
*
|
6 |
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
7 |
* of this software and associated documentation files (the "Software"), to deal
|
8 |
* in the Software without restriction, including without limitation the rights
|
9 |
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
10 |
* copies of the Software, and to permit persons to whom the Software is
|
11 |
* furnished to do so, subject to the following conditions:
|
12 |
*
|
13 |
* The above copyright notice and this permission notice shall be included in
|
14 |
* all copies or substantial portions of the Software.
|
15 |
*
|
16 |
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
17 |
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
18 |
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
19 |
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
20 |
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
21 |
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
22 |
* THE SOFTWARE.
|
23 |
*/
|
24 |
#include "qemu-common.h" |
25 |
#include "qemu/timer.h" |
26 |
#include "block/block_int.h" |
27 |
#include "qemu/module.h" |
28 |
#include "raw-aio.h" |
29 |
#include "trace.h" |
30 |
#include "block/thread-pool.h" |
31 |
#include "qemu/iov.h" |
32 |
#include <windows.h> |
33 |
#include <winioctl.h> |
34 |
|
35 |
#define FTYPE_FILE 0 |
36 |
#define FTYPE_CD 1 |
37 |
#define FTYPE_HARDDISK 2 |
38 |
|
39 |
static QEMUWin32AIOState *aio;
|
40 |
|
41 |
typedef struct RawWin32AIOData { |
42 |
BlockDriverState *bs; |
43 |
HANDLE hfile; |
44 |
struct iovec *aio_iov;
|
45 |
int aio_niov;
|
46 |
size_t aio_nbytes; |
47 |
off64_t aio_offset; |
48 |
int aio_type;
|
49 |
} RawWin32AIOData; |
50 |
|
51 |
typedef struct BDRVRawState { |
52 |
HANDLE hfile; |
53 |
int type;
|
54 |
char drive_path[16]; /* format: "d:\" */ |
55 |
QEMUWin32AIOState *aio; |
56 |
} BDRVRawState; |
57 |
|
58 |
/*
|
59 |
* Read/writes the data to/from a given linear buffer.
|
60 |
*
|
61 |
* Returns the number of bytes handles or -errno in case of an error. Short
|
62 |
* reads are only returned if the end of the file is reached.
|
63 |
*/
|
64 |
static size_t handle_aiocb_rw(RawWin32AIOData *aiocb)
|
65 |
{ |
66 |
size_t offset = 0;
|
67 |
int i;
|
68 |
|
69 |
for (i = 0; i < aiocb->aio_niov; i++) { |
70 |
OVERLAPPED ov; |
71 |
DWORD ret, ret_count, len; |
72 |
|
73 |
memset(&ov, 0, sizeof(ov)); |
74 |
ov.Offset = (aiocb->aio_offset + offset); |
75 |
ov.OffsetHigh = (aiocb->aio_offset + offset) >> 32;
|
76 |
len = aiocb->aio_iov[i].iov_len; |
77 |
if (aiocb->aio_type & QEMU_AIO_WRITE) {
|
78 |
ret = WriteFile(aiocb->hfile, aiocb->aio_iov[i].iov_base, |
79 |
len, &ret_count, &ov); |
80 |
} else {
|
81 |
ret = ReadFile(aiocb->hfile, aiocb->aio_iov[i].iov_base, |
82 |
len, &ret_count, &ov); |
83 |
} |
84 |
if (!ret) {
|
85 |
ret_count = 0;
|
86 |
} |
87 |
if (ret_count != len) {
|
88 |
break;
|
89 |
} |
90 |
offset += len; |
91 |
} |
92 |
|
93 |
return offset;
|
94 |
} |
95 |
|
96 |
static int aio_worker(void *arg) |
97 |
{ |
98 |
RawWin32AIOData *aiocb = arg; |
99 |
ssize_t ret = 0;
|
100 |
size_t count; |
101 |
|
102 |
switch (aiocb->aio_type & QEMU_AIO_TYPE_MASK) {
|
103 |
case QEMU_AIO_READ:
|
104 |
count = handle_aiocb_rw(aiocb); |
105 |
if (count < aiocb->aio_nbytes && aiocb->bs->growable) {
|
106 |
/* A short read means that we have reached EOF. Pad the buffer
|
107 |
* with zeros for bytes after EOF. */
|
108 |
iov_memset(aiocb->aio_iov, aiocb->aio_niov, count, |
109 |
0, aiocb->aio_nbytes - count);
|
110 |
|
111 |
count = aiocb->aio_nbytes; |
112 |
} |
113 |
if (count == aiocb->aio_nbytes) {
|
114 |
ret = 0;
|
115 |
} else {
|
116 |
ret = -EINVAL; |
117 |
} |
118 |
break;
|
119 |
case QEMU_AIO_WRITE:
|
120 |
count = handle_aiocb_rw(aiocb); |
121 |
if (count == aiocb->aio_nbytes) {
|
122 |
count = 0;
|
123 |
} else {
|
124 |
count = -EINVAL; |
125 |
} |
126 |
break;
|
127 |
case QEMU_AIO_FLUSH:
|
128 |
if (!FlushFileBuffers(aiocb->hfile)) {
|
129 |
return -EIO;
|
130 |
} |
131 |
break;
|
132 |
default:
|
133 |
fprintf(stderr, "invalid aio request (0x%x)\n", aiocb->aio_type);
|
134 |
ret = -EINVAL; |
135 |
break;
|
136 |
} |
137 |
|
138 |
g_slice_free(RawWin32AIOData, aiocb); |
139 |
return ret;
|
140 |
} |
141 |
|
142 |
static BlockDriverAIOCB *paio_submit(BlockDriverState *bs, HANDLE hfile,
|
143 |
int64_t sector_num, QEMUIOVector *qiov, int nb_sectors,
|
144 |
BlockDriverCompletionFunc *cb, void *opaque, int type) |
145 |
{ |
146 |
RawWin32AIOData *acb = g_slice_new(RawWin32AIOData); |
147 |
|
148 |
acb->bs = bs; |
149 |
acb->hfile = hfile; |
150 |
acb->aio_type = type; |
151 |
|
152 |
if (qiov) {
|
153 |
acb->aio_iov = qiov->iov; |
154 |
acb->aio_niov = qiov->niov; |
155 |
} |
156 |
acb->aio_nbytes = nb_sectors * 512;
|
157 |
acb->aio_offset = sector_num * 512;
|
158 |
|
159 |
trace_paio_submit(acb, opaque, sector_num, nb_sectors, type); |
160 |
return thread_pool_submit_aio(aio_worker, acb, cb, opaque);
|
161 |
} |
162 |
|
163 |
int qemu_ftruncate64(int fd, int64_t length) |
164 |
{ |
165 |
LARGE_INTEGER li; |
166 |
DWORD dw; |
167 |
LONG high; |
168 |
HANDLE h; |
169 |
BOOL res; |
170 |
|
171 |
if ((GetVersion() & 0x80000000UL) && (length >> 32) != 0) |
172 |
return -1; |
173 |
|
174 |
h = (HANDLE)_get_osfhandle(fd); |
175 |
|
176 |
/* get current position, ftruncate do not change position */
|
177 |
li.HighPart = 0;
|
178 |
li.LowPart = SetFilePointer (h, 0, &li.HighPart, FILE_CURRENT);
|
179 |
if (li.LowPart == INVALID_SET_FILE_POINTER && GetLastError() != NO_ERROR) {
|
180 |
return -1; |
181 |
} |
182 |
|
183 |
high = length >> 32;
|
184 |
dw = SetFilePointer(h, (DWORD) length, &high, FILE_BEGIN); |
185 |
if (dw == INVALID_SET_FILE_POINTER && GetLastError() != NO_ERROR) {
|
186 |
return -1; |
187 |
} |
188 |
res = SetEndOfFile(h); |
189 |
|
190 |
/* back to old position */
|
191 |
SetFilePointer(h, li.LowPart, &li.HighPart, FILE_BEGIN); |
192 |
return res ? 0 : -1; |
193 |
} |
194 |
|
195 |
static int set_sparse(int fd) |
196 |
{ |
197 |
DWORD returned; |
198 |
return (int) DeviceIoControl((HANDLE)_get_osfhandle(fd), FSCTL_SET_SPARSE, |
199 |
NULL, 0, NULL, 0, &returned, NULL); |
200 |
} |
201 |
|
202 |
static void raw_parse_flags(int flags, int *access_flags, DWORD *overlapped) |
203 |
{ |
204 |
assert(access_flags != NULL);
|
205 |
assert(overlapped != NULL);
|
206 |
|
207 |
if (flags & BDRV_O_RDWR) {
|
208 |
*access_flags = GENERIC_READ | GENERIC_WRITE; |
209 |
} else {
|
210 |
*access_flags = GENERIC_READ; |
211 |
} |
212 |
|
213 |
*overlapped = FILE_ATTRIBUTE_NORMAL; |
214 |
if (flags & BDRV_O_NATIVE_AIO) {
|
215 |
*overlapped |= FILE_FLAG_OVERLAPPED; |
216 |
} |
217 |
if (flags & BDRV_O_NOCACHE) {
|
218 |
*overlapped |= FILE_FLAG_NO_BUFFERING; |
219 |
} |
220 |
} |
221 |
|
222 |
static int raw_open(BlockDriverState *bs, const char *filename, int flags) |
223 |
{ |
224 |
BDRVRawState *s = bs->opaque; |
225 |
int access_flags;
|
226 |
DWORD overlapped; |
227 |
|
228 |
s->type = FTYPE_FILE; |
229 |
|
230 |
raw_parse_flags(flags, &access_flags, &overlapped); |
231 |
|
232 |
if ((flags & BDRV_O_NATIVE_AIO) && aio == NULL) { |
233 |
aio = win32_aio_init(); |
234 |
if (aio == NULL) { |
235 |
return -EINVAL;
|
236 |
} |
237 |
} |
238 |
|
239 |
s->hfile = CreateFile(filename, access_flags, |
240 |
FILE_SHARE_READ, NULL,
|
241 |
OPEN_EXISTING, overlapped, NULL);
|
242 |
if (s->hfile == INVALID_HANDLE_VALUE) {
|
243 |
int err = GetLastError();
|
244 |
|
245 |
if (err == ERROR_ACCESS_DENIED)
|
246 |
return -EACCES;
|
247 |
return -EINVAL;
|
248 |
} |
249 |
|
250 |
if (flags & BDRV_O_NATIVE_AIO) {
|
251 |
int ret = win32_aio_attach(aio, s->hfile);
|
252 |
if (ret < 0) { |
253 |
CloseHandle(s->hfile); |
254 |
return ret;
|
255 |
} |
256 |
s->aio = aio; |
257 |
} |
258 |
return 0; |
259 |
} |
260 |
|
261 |
static BlockDriverAIOCB *raw_aio_readv(BlockDriverState *bs,
|
262 |
int64_t sector_num, QEMUIOVector *qiov, int nb_sectors,
|
263 |
BlockDriverCompletionFunc *cb, void *opaque)
|
264 |
{ |
265 |
BDRVRawState *s = bs->opaque; |
266 |
if (s->aio) {
|
267 |
return win32_aio_submit(bs, s->aio, s->hfile, sector_num, qiov,
|
268 |
nb_sectors, cb, opaque, QEMU_AIO_READ); |
269 |
} else {
|
270 |
return paio_submit(bs, s->hfile, sector_num, qiov, nb_sectors,
|
271 |
cb, opaque, QEMU_AIO_READ); |
272 |
} |
273 |
} |
274 |
|
275 |
static BlockDriverAIOCB *raw_aio_writev(BlockDriverState *bs,
|
276 |
int64_t sector_num, QEMUIOVector *qiov, int nb_sectors,
|
277 |
BlockDriverCompletionFunc *cb, void *opaque)
|
278 |
{ |
279 |
BDRVRawState *s = bs->opaque; |
280 |
if (s->aio) {
|
281 |
return win32_aio_submit(bs, s->aio, s->hfile, sector_num, qiov,
|
282 |
nb_sectors, cb, opaque, QEMU_AIO_WRITE); |
283 |
} else {
|
284 |
return paio_submit(bs, s->hfile, sector_num, qiov, nb_sectors,
|
285 |
cb, opaque, QEMU_AIO_WRITE); |
286 |
} |
287 |
} |
288 |
|
289 |
static BlockDriverAIOCB *raw_aio_flush(BlockDriverState *bs,
|
290 |
BlockDriverCompletionFunc *cb, void *opaque)
|
291 |
{ |
292 |
BDRVRawState *s = bs->opaque; |
293 |
return paio_submit(bs, s->hfile, 0, NULL, 0, cb, opaque, QEMU_AIO_FLUSH); |
294 |
} |
295 |
|
296 |
static void raw_close(BlockDriverState *bs) |
297 |
{ |
298 |
BDRVRawState *s = bs->opaque; |
299 |
CloseHandle(s->hfile); |
300 |
} |
301 |
|
302 |
static int raw_truncate(BlockDriverState *bs, int64_t offset) |
303 |
{ |
304 |
BDRVRawState *s = bs->opaque; |
305 |
LONG low, high; |
306 |
DWORD dwPtrLow; |
307 |
|
308 |
low = offset; |
309 |
high = offset >> 32;
|
310 |
|
311 |
/*
|
312 |
* An error has occurred if the return value is INVALID_SET_FILE_POINTER
|
313 |
* and GetLastError doesn't return NO_ERROR.
|
314 |
*/
|
315 |
dwPtrLow = SetFilePointer(s->hfile, low, &high, FILE_BEGIN); |
316 |
if (dwPtrLow == INVALID_SET_FILE_POINTER && GetLastError() != NO_ERROR) {
|
317 |
fprintf(stderr, "SetFilePointer error: %lu\n", GetLastError());
|
318 |
return -EIO;
|
319 |
} |
320 |
if (SetEndOfFile(s->hfile) == 0) { |
321 |
fprintf(stderr, "SetEndOfFile error: %lu\n", GetLastError());
|
322 |
return -EIO;
|
323 |
} |
324 |
return 0; |
325 |
} |
326 |
|
327 |
static int64_t raw_getlength(BlockDriverState *bs)
|
328 |
{ |
329 |
BDRVRawState *s = bs->opaque; |
330 |
LARGE_INTEGER l; |
331 |
ULARGE_INTEGER available, total, total_free; |
332 |
DISK_GEOMETRY_EX dg; |
333 |
DWORD count; |
334 |
BOOL status; |
335 |
|
336 |
switch(s->type) {
|
337 |
case FTYPE_FILE:
|
338 |
l.LowPart = GetFileSize(s->hfile, (PDWORD)&l.HighPart); |
339 |
if (l.LowPart == 0xffffffffUL && GetLastError() != NO_ERROR) |
340 |
return -EIO;
|
341 |
break;
|
342 |
case FTYPE_CD:
|
343 |
if (!GetDiskFreeSpaceEx(s->drive_path, &available, &total, &total_free))
|
344 |
return -EIO;
|
345 |
l.QuadPart = total.QuadPart; |
346 |
break;
|
347 |
case FTYPE_HARDDISK:
|
348 |
status = DeviceIoControl(s->hfile, IOCTL_DISK_GET_DRIVE_GEOMETRY_EX, |
349 |
NULL, 0, &dg, sizeof(dg), &count, NULL); |
350 |
if (status != 0) { |
351 |
l = dg.DiskSize; |
352 |
} |
353 |
break;
|
354 |
default:
|
355 |
return -EIO;
|
356 |
} |
357 |
return l.QuadPart;
|
358 |
} |
359 |
|
360 |
static int64_t raw_get_allocated_file_size(BlockDriverState *bs)
|
361 |
{ |
362 |
typedef DWORD (WINAPI * get_compressed_t)(const char *filename, |
363 |
DWORD * high); |
364 |
get_compressed_t get_compressed; |
365 |
struct _stati64 st;
|
366 |
const char *filename = bs->filename; |
367 |
/* WinNT support GetCompressedFileSize to determine allocate size */
|
368 |
get_compressed = |
369 |
(get_compressed_t) GetProcAddress(GetModuleHandle("kernel32"),
|
370 |
"GetCompressedFileSizeA");
|
371 |
if (get_compressed) {
|
372 |
DWORD high, low; |
373 |
low = get_compressed(filename, &high); |
374 |
if (low != 0xFFFFFFFFlu || GetLastError() == NO_ERROR) { |
375 |
return (((int64_t) high) << 32) + low; |
376 |
} |
377 |
} |
378 |
|
379 |
if (_stati64(filename, &st) < 0) { |
380 |
return -1; |
381 |
} |
382 |
return st.st_size;
|
383 |
} |
384 |
|
385 |
static int raw_create(const char *filename, QEMUOptionParameter *options) |
386 |
{ |
387 |
int fd;
|
388 |
int64_t total_size = 0;
|
389 |
|
390 |
/* Read out options */
|
391 |
while (options && options->name) {
|
392 |
if (!strcmp(options->name, BLOCK_OPT_SIZE)) {
|
393 |
total_size = options->value.n / 512;
|
394 |
} |
395 |
options++; |
396 |
} |
397 |
|
398 |
fd = qemu_open(filename, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, |
399 |
0644);
|
400 |
if (fd < 0) |
401 |
return -EIO;
|
402 |
set_sparse(fd); |
403 |
ftruncate(fd, total_size * 512);
|
404 |
qemu_close(fd); |
405 |
return 0; |
406 |
} |
407 |
|
408 |
static QEMUOptionParameter raw_create_options[] = {
|
409 |
{ |
410 |
.name = BLOCK_OPT_SIZE, |
411 |
.type = OPT_SIZE, |
412 |
.help = "Virtual disk size"
|
413 |
}, |
414 |
{ NULL }
|
415 |
}; |
416 |
|
417 |
static BlockDriver bdrv_file = {
|
418 |
.format_name = "file",
|
419 |
.protocol_name = "file",
|
420 |
.instance_size = sizeof(BDRVRawState),
|
421 |
.bdrv_file_open = raw_open, |
422 |
.bdrv_close = raw_close, |
423 |
.bdrv_create = raw_create, |
424 |
|
425 |
.bdrv_aio_readv = raw_aio_readv, |
426 |
.bdrv_aio_writev = raw_aio_writev, |
427 |
.bdrv_aio_flush = raw_aio_flush, |
428 |
|
429 |
.bdrv_truncate = raw_truncate, |
430 |
.bdrv_getlength = raw_getlength, |
431 |
.bdrv_get_allocated_file_size |
432 |
= raw_get_allocated_file_size, |
433 |
|
434 |
.create_options = raw_create_options, |
435 |
}; |
436 |
|
437 |
/***********************************************/
|
438 |
/* host device */
|
439 |
|
440 |
static int find_cdrom(char *cdrom_name, int cdrom_name_size) |
441 |
{ |
442 |
char drives[256], *pdrv = drives; |
443 |
UINT type; |
444 |
|
445 |
memset(drives, 0, sizeof(drives)); |
446 |
GetLogicalDriveStrings(sizeof(drives), drives);
|
447 |
while(pdrv[0] != '\0') { |
448 |
type = GetDriveType(pdrv); |
449 |
switch(type) {
|
450 |
case DRIVE_CDROM:
|
451 |
snprintf(cdrom_name, cdrom_name_size, "\\\\.\\%c:", pdrv[0]); |
452 |
return 0; |
453 |
break;
|
454 |
} |
455 |
pdrv += lstrlen(pdrv) + 1;
|
456 |
} |
457 |
return -1; |
458 |
} |
459 |
|
460 |
static int find_device_type(BlockDriverState *bs, const char *filename) |
461 |
{ |
462 |
BDRVRawState *s = bs->opaque; |
463 |
UINT type; |
464 |
const char *p; |
465 |
|
466 |
if (strstart(filename, "\\\\.\\", &p) || |
467 |
strstart(filename, "//./", &p)) {
|
468 |
if (stristart(p, "PhysicalDrive", NULL)) |
469 |
return FTYPE_HARDDISK;
|
470 |
snprintf(s->drive_path, sizeof(s->drive_path), "%c:\\", p[0]); |
471 |
type = GetDriveType(s->drive_path); |
472 |
switch (type) {
|
473 |
case DRIVE_REMOVABLE:
|
474 |
case DRIVE_FIXED:
|
475 |
return FTYPE_HARDDISK;
|
476 |
case DRIVE_CDROM:
|
477 |
return FTYPE_CD;
|
478 |
default:
|
479 |
return FTYPE_FILE;
|
480 |
} |
481 |
} else {
|
482 |
return FTYPE_FILE;
|
483 |
} |
484 |
} |
485 |
|
486 |
static int hdev_probe_device(const char *filename) |
487 |
{ |
488 |
if (strstart(filename, "/dev/cdrom", NULL)) |
489 |
return 100; |
490 |
if (is_windows_drive(filename))
|
491 |
return 100; |
492 |
return 0; |
493 |
} |
494 |
|
495 |
static int hdev_open(BlockDriverState *bs, const char *filename, int flags) |
496 |
{ |
497 |
BDRVRawState *s = bs->opaque; |
498 |
int access_flags, create_flags;
|
499 |
DWORD overlapped; |
500 |
char device_name[64]; |
501 |
|
502 |
if (strstart(filename, "/dev/cdrom", NULL)) { |
503 |
if (find_cdrom(device_name, sizeof(device_name)) < 0) |
504 |
return -ENOENT;
|
505 |
filename = device_name; |
506 |
} else {
|
507 |
/* transform drive letters into device name */
|
508 |
if (((filename[0] >= 'a' && filename[0] <= 'z') || |
509 |
(filename[0] >= 'A' && filename[0] <= 'Z')) && |
510 |
filename[1] == ':' && filename[2] == '\0') { |
511 |
snprintf(device_name, sizeof(device_name), "\\\\.\\%c:", filename[0]); |
512 |
filename = device_name; |
513 |
} |
514 |
} |
515 |
s->type = find_device_type(bs, filename); |
516 |
|
517 |
raw_parse_flags(flags, &access_flags, &overlapped); |
518 |
|
519 |
create_flags = OPEN_EXISTING; |
520 |
|
521 |
s->hfile = CreateFile(filename, access_flags, |
522 |
FILE_SHARE_READ, NULL,
|
523 |
create_flags, overlapped, NULL);
|
524 |
if (s->hfile == INVALID_HANDLE_VALUE) {
|
525 |
int err = GetLastError();
|
526 |
|
527 |
if (err == ERROR_ACCESS_DENIED)
|
528 |
return -EACCES;
|
529 |
return -1; |
530 |
} |
531 |
return 0; |
532 |
} |
533 |
|
534 |
static int hdev_has_zero_init(BlockDriverState *bs) |
535 |
{ |
536 |
return 0; |
537 |
} |
538 |
|
539 |
static BlockDriver bdrv_host_device = {
|
540 |
.format_name = "host_device",
|
541 |
.protocol_name = "host_device",
|
542 |
.instance_size = sizeof(BDRVRawState),
|
543 |
.bdrv_probe_device = hdev_probe_device, |
544 |
.bdrv_file_open = hdev_open, |
545 |
.bdrv_close = raw_close, |
546 |
.bdrv_has_zero_init = hdev_has_zero_init, |
547 |
|
548 |
.bdrv_aio_readv = raw_aio_readv, |
549 |
.bdrv_aio_writev = raw_aio_writev, |
550 |
.bdrv_aio_flush = raw_aio_flush, |
551 |
|
552 |
.bdrv_getlength = raw_getlength, |
553 |
.bdrv_get_allocated_file_size |
554 |
= raw_get_allocated_file_size, |
555 |
}; |
556 |
|
557 |
static void bdrv_file_init(void) |
558 |
{ |
559 |
bdrv_register(&bdrv_file); |
560 |
bdrv_register(&bdrv_host_device); |
561 |
} |
562 |
|
563 |
block_init(bdrv_file_init); |