Blame view
init/initramfs.c
14 KB
b24413180 License cleanup: ... |
1 |
// SPDX-License-Identifier: GPL-2.0 |
c67e5382f init: disable spa... |
2 3 4 5 6 7 8 9 10 |
/* * Many of the syscalls used in this file expect some of the arguments * to be __user pointers not __kernel pointers. To limit the sparse * noise, turn off sparse checking for this file. */ #ifdef __CHECKER__ #undef __CHECKER__ #warning "Sparse checking disabled for this file" #endif |
1da177e4c Linux-2.6.12-rc2 |
11 12 13 14 15 16 17 |
#include <linux/init.h> #include <linux/fs.h> #include <linux/slab.h> #include <linux/types.h> #include <linux/fcntl.h> #include <linux/delay.h> #include <linux/string.h> |
df52092f3 fastboot: remove ... |
18 |
#include <linux/dirent.h> |
1da177e4c Linux-2.6.12-rc2 |
19 |
#include <linux/syscalls.h> |
889d51a10 initramfs: add op... |
20 |
#include <linux/utime.h> |
088655148 initramfs: finish... |
21 |
#include <linux/file.h> |
1da177e4c Linux-2.6.12-rc2 |
22 |
|
387474399 initramfs: suppor... |
23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 |
static ssize_t __init xwrite(int fd, const char *p, size_t count) { ssize_t out = 0; /* sys_write only can write MAX_RW_COUNT aka 2G-4K bytes at most */ while (count) { ssize_t rv = sys_write(fd, p, count); if (rv < 0) { if (rv == -EINTR || rv == -EAGAIN) continue; return out ? out : rv; } else if (rv == 0) break; p += rv; out += rv; count -= rv; } return out; } |
1da177e4c Linux-2.6.12-rc2 |
45 46 47 48 49 50 |
static __initdata char *message; static void __init error(char *x) { if (!message) message = x; } |
1da177e4c Linux-2.6.12-rc2 |
51 |
/* link hash */ |
6a050da45 [PATCH] initramfs... |
52 |
#define N_ALIGN(len) ((((len) + 1) & ~3) + 2) |
1da177e4c Linux-2.6.12-rc2 |
53 54 |
static __initdata struct hash { int ino, minor, major; |
685dd2d5b init/initramfs.c:... |
55 |
umode_t mode; |
1da177e4c Linux-2.6.12-rc2 |
56 |
struct hash *next; |
6a050da45 [PATCH] initramfs... |
57 |
char name[N_ALIGN(PATH_MAX)]; |
1da177e4c Linux-2.6.12-rc2 |
58 59 60 61 62 63 64 65 |
} *head[32]; static inline int hash(int major, int minor, int ino) { unsigned long tmp = ino + minor + (major << 3); tmp += tmp >> 5; return tmp & 31; } |
2139a7fbf [PATCH] initramfs... |
66 |
static char __init *find_link(int major, int minor, int ino, |
685dd2d5b init/initramfs.c:... |
67 |
umode_t mode, char *name) |
1da177e4c Linux-2.6.12-rc2 |
68 69 70 71 72 73 74 75 76 |
{ struct hash **p, *q; for (p = head + hash(major, minor, ino); *p; p = &(*p)->next) { if ((*p)->ino != ino) continue; if ((*p)->minor != minor) continue; if ((*p)->major != major) continue; |
2139a7fbf [PATCH] initramfs... |
77 78 |
if (((*p)->mode ^ mode) & S_IFMT) continue; |
1da177e4c Linux-2.6.12-rc2 |
79 80 |
return (*p)->name; } |
3265e66b1 directly use kmal... |
81 |
q = kmalloc(sizeof(struct hash), GFP_KERNEL); |
1da177e4c Linux-2.6.12-rc2 |
82 83 |
if (!q) panic("can't allocate link hash entry"); |
1da177e4c Linux-2.6.12-rc2 |
84 |
q->major = major; |
2139a7fbf [PATCH] initramfs... |
85 86 87 |
q->minor = minor; q->ino = ino; q->mode = mode; |
6a050da45 [PATCH] initramfs... |
88 |
strcpy(q->name, name); |
1da177e4c Linux-2.6.12-rc2 |
89 90 91 92 93 94 95 96 97 98 99 100 |
q->next = NULL; *p = q; return NULL; } static void __init free_hash(void) { struct hash **p, *q; for (p = head; p < head + 32; p++) { while (*p) { q = *p; *p = q->next; |
3265e66b1 directly use kmal... |
101 |
kfree(q); |
1da177e4c Linux-2.6.12-rc2 |
102 103 104 |
} } } |
c67e5382f init: disable spa... |
105 |
static long __init do_utime(char *filename, time_t mtime) |
889d51a10 initramfs: add op... |
106 |
{ |
aaed2dd8a utimes: Make utim... |
107 |
struct timespec64 t[2]; |
889d51a10 initramfs: add op... |
108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 |
t[0].tv_sec = mtime; t[0].tv_nsec = 0; t[1].tv_sec = mtime; t[1].tv_nsec = 0; return do_utimes(AT_FDCWD, filename, t, AT_SYMLINK_NOFOLLOW); } static __initdata LIST_HEAD(dir_list); struct dir_entry { struct list_head list; char *name; time_t mtime; }; static void __init dir_add(const char *name, time_t mtime) { struct dir_entry *de = kmalloc(sizeof(struct dir_entry), GFP_KERNEL); if (!de) panic("can't allocate dir_entry buffer"); INIT_LIST_HEAD(&de->list); de->name = kstrdup(name, GFP_KERNEL); de->mtime = mtime; list_add(&de->list, &dir_list); } static void __init dir_utime(void) { struct dir_entry *de, *tmp; list_for_each_entry_safe(de, tmp, &dir_list, list) { list_del(&de->list); do_utime(de->name, de->mtime); kfree(de->name); kfree(de); } } static __initdata time_t mtime; |
1da177e4c Linux-2.6.12-rc2 |
147 148 149 |
/* cpio header parsing */ static __initdata unsigned long ino, major, minor, nlink; |
685dd2d5b init/initramfs.c:... |
150 |
static __initdata umode_t mode; |
1da177e4c Linux-2.6.12-rc2 |
151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 |
static __initdata unsigned long body_len, name_len; static __initdata uid_t uid; static __initdata gid_t gid; static __initdata unsigned rdev; static void __init parse_header(char *s) { unsigned long parsed[12]; char buf[9]; int i; buf[8] = '\0'; for (i = 0, s += 6; i < 12; i++, s += 8) { memcpy(buf, s, 8); parsed[i] = simple_strtoul(buf, NULL, 16); } ino = parsed[0]; mode = parsed[1]; uid = parsed[2]; gid = parsed[3]; nlink = parsed[4]; |
889d51a10 initramfs: add op... |
172 |
mtime = parsed[5]; |
1da177e4c Linux-2.6.12-rc2 |
173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 |
body_len = parsed[6]; major = parsed[7]; minor = parsed[8]; rdev = new_encode_dev(MKDEV(parsed[9], parsed[10])); name_len = parsed[11]; } /* FSM */ static __initdata enum state { Start, Collect, GotHeader, SkipIt, GotName, CopyFile, GotSymlink, Reset } state, next_state; static __initdata char *victim; |
c34d85aca init/initramfs.c:... |
194 |
static unsigned long byte_count __initdata; |
1da177e4c Linux-2.6.12-rc2 |
195 |
static __initdata loff_t this_header, next_header; |
b0a5ab931 initramfs: missin... |
196 |
static inline void __init eat(unsigned n) |
1da177e4c Linux-2.6.12-rc2 |
197 198 199 |
{ victim += n; this_header += n; |
c34d85aca init/initramfs.c:... |
200 |
byte_count -= n; |
1da177e4c Linux-2.6.12-rc2 |
201 |
} |
889d51a10 initramfs: add op... |
202 |
static __initdata char *vcollected; |
1da177e4c Linux-2.6.12-rc2 |
203 |
static __initdata char *collected; |
d97b07c54 initramfs: suppor... |
204 |
static long remains __initdata; |
1da177e4c Linux-2.6.12-rc2 |
205 206 207 208 |
static __initdata char *collect; static void __init read_into(char *buf, unsigned size, enum state next) { |
c34d85aca init/initramfs.c:... |
209 |
if (byte_count >= size) { |
1da177e4c Linux-2.6.12-rc2 |
210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 |
collected = victim; eat(size); state = next; } else { collect = collected = buf; remains = size; next_state = next; state = Collect; } } static __initdata char *header_buf, *symlink_buf, *name_buf; static int __init do_start(void) { read_into(header_buf, 110, GotHeader); return 0; } static int __init do_collect(void) { |
d97b07c54 initramfs: suppor... |
231 |
unsigned long n = remains; |
c34d85aca init/initramfs.c:... |
232 233 |
if (byte_count < n) n = byte_count; |
1da177e4c Linux-2.6.12-rc2 |
234 235 236 237 238 239 240 241 242 243 244 |
memcpy(collect, victim, n); eat(n); collect += n; if ((remains -= n) != 0) return 1; state = next_state; return 0; } static int __init do_header(void) { |
2e591bbc0 [PATCH] Make init... |
245 246 247 248 |
if (memcmp(collected, "070707", 6)==0) { error("incorrect cpio method used: use -H newc option"); return 1; } |
1da177e4c Linux-2.6.12-rc2 |
249 250 251 252 253 254 255 |
if (memcmp(collected, "070701", 6)) { error("no cpio magic"); return 1; } parse_header(collected); next_header = this_header + N_ALIGN(name_len) + body_len; next_header = (next_header + 3) & ~3; |
1da177e4c Linux-2.6.12-rc2 |
256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 |
state = SkipIt; if (name_len <= 0 || name_len > PATH_MAX) return 0; if (S_ISLNK(mode)) { if (body_len > PATH_MAX) return 0; collect = collected = symlink_buf; remains = N_ALIGN(name_len) + body_len; next_state = GotSymlink; state = Collect; return 0; } if (S_ISREG(mode) || !body_len) read_into(name_buf, N_ALIGN(name_len), GotName); return 0; } static int __init do_skip(void) { |
c34d85aca init/initramfs.c:... |
275 276 |
if (this_header + byte_count < next_header) { eat(byte_count); |
1da177e4c Linux-2.6.12-rc2 |
277 278 279 280 281 282 283 284 285 286 |
return 1; } else { eat(next_header - this_header); state = next_state; return 0; } } static int __init do_reset(void) { |
c34d85aca init/initramfs.c:... |
287 |
while (byte_count && *victim == '\0') |
1da177e4c Linux-2.6.12-rc2 |
288 |
eat(1); |
c34d85aca init/initramfs.c:... |
289 |
if (byte_count && (this_header & 3)) |
1da177e4c Linux-2.6.12-rc2 |
290 291 292 293 294 295 296 |
error("broken padding"); return 1; } static int __init maybe_link(void) { if (nlink >= 2) { |
2139a7fbf [PATCH] initramfs... |
297 |
char *old = find_link(major, minor, ino, mode, collected); |
1da177e4c Linux-2.6.12-rc2 |
298 299 300 301 302 |
if (old) return (sys_link(old, collected) < 0) ? -1 : 1; } return 0; } |
c34d85aca init/initramfs.c:... |
303 |
static void __init clean_path(char *path, umode_t fmode) |
2139a7fbf [PATCH] initramfs... |
304 |
{ |
046aa1265 initramfs: use vf... |
305 |
struct kstat st; |
2139a7fbf [PATCH] initramfs... |
306 |
|
046aa1265 initramfs: use vf... |
307 308 |
if (!vfs_lstat(path, &st) && (st.mode ^ fmode) & S_IFMT) { if (S_ISDIR(st.mode)) |
2139a7fbf [PATCH] initramfs... |
309 310 311 312 313 |
sys_rmdir(path); else sys_unlink(path); } } |
1da177e4c Linux-2.6.12-rc2 |
314 315 316 317 318 319 320 321 322 323 |
static __initdata int wfd; static int __init do_name(void) { state = SkipIt; next_state = Reset; if (strcmp(collected, "TRAILER!!!") == 0) { free_hash(); return 0; } |
2139a7fbf [PATCH] initramfs... |
324 |
clean_path(collected, mode); |
1da177e4c Linux-2.6.12-rc2 |
325 |
if (S_ISREG(mode)) { |
2139a7fbf [PATCH] initramfs... |
326 327 328 329 330 331 |
int ml = maybe_link(); if (ml >= 0) { int openflags = O_WRONLY|O_CREAT; if (ml != 1) openflags |= O_TRUNC; wfd = sys_open(collected, openflags, mode); |
1da177e4c Linux-2.6.12-rc2 |
332 333 334 |
if (wfd >= 0) { sys_fchown(wfd, uid, gid); sys_fchmod(wfd, mode); |
d20d5a745 initramfs: fix in... |
335 336 |
if (body_len) sys_ftruncate(wfd, body_len); |
889d51a10 initramfs: add op... |
337 |
vcollected = kstrdup(collected, GFP_KERNEL); |
1da177e4c Linux-2.6.12-rc2 |
338 339 340 341 342 343 344 |
state = CopyFile; } } } else if (S_ISDIR(mode)) { sys_mkdir(collected, mode); sys_chown(collected, uid, gid); sys_chmod(collected, mode); |
889d51a10 initramfs: add op... |
345 |
dir_add(collected, mtime); |
1da177e4c Linux-2.6.12-rc2 |
346 347 348 349 350 351 |
} else if (S_ISBLK(mode) || S_ISCHR(mode) || S_ISFIFO(mode) || S_ISSOCK(mode)) { if (maybe_link() == 0) { sys_mknod(collected, mode, rdev); sys_chown(collected, uid, gid); sys_chmod(collected, mode); |
889d51a10 initramfs: add op... |
352 |
do_utime(collected, mtime); |
1da177e4c Linux-2.6.12-rc2 |
353 354 355 356 357 358 359 |
} } return 0; } static int __init do_copy(void) { |
c34d85aca init/initramfs.c:... |
360 |
if (byte_count >= body_len) { |
9687fd910 initramfs: add wr... |
361 362 |
if (xwrite(wfd, victim, body_len) != body_len) error("write error"); |
1da177e4c Linux-2.6.12-rc2 |
363 |
sys_close(wfd); |
889d51a10 initramfs: add op... |
364 365 |
do_utime(vcollected, mtime); kfree(vcollected); |
1da177e4c Linux-2.6.12-rc2 |
366 367 368 369 |
eat(body_len); state = SkipIt; return 0; } else { |
c34d85aca init/initramfs.c:... |
370 |
if (xwrite(wfd, victim, byte_count) != byte_count) |
9687fd910 initramfs: add wr... |
371 |
error("write error"); |
c34d85aca init/initramfs.c:... |
372 373 |
body_len -= byte_count; eat(byte_count); |
1da177e4c Linux-2.6.12-rc2 |
374 375 376 377 378 379 380 |
return 1; } } static int __init do_symlink(void) { collected[N_ALIGN(name_len) + body_len] = '\0'; |
2139a7fbf [PATCH] initramfs... |
381 |
clean_path(collected, 0); |
1da177e4c Linux-2.6.12-rc2 |
382 383 |
sys_symlink(collected + N_ALIGN(name_len), collected); sys_lchown(collected, uid, gid); |
889d51a10 initramfs: add op... |
384 |
do_utime(collected, mtime); |
1da177e4c Linux-2.6.12-rc2 |
385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 |
state = SkipIt; next_state = Reset; return 0; } static __initdata int (*actions[])(void) = { [Start] = do_start, [Collect] = do_collect, [GotHeader] = do_header, [SkipIt] = do_skip, [GotName] = do_name, [CopyFile] = do_copy, [GotSymlink] = do_symlink, [Reset] = do_reset, }; |
d97b07c54 initramfs: suppor... |
400 |
static long __init write_buffer(char *buf, unsigned long len) |
1da177e4c Linux-2.6.12-rc2 |
401 |
{ |
c34d85aca init/initramfs.c:... |
402 |
byte_count = len; |
1da177e4c Linux-2.6.12-rc2 |
403 404 405 406 |
victim = buf; while (!actions[state]()) ; |
c34d85aca init/initramfs.c:... |
407 |
return len - byte_count; |
1da177e4c Linux-2.6.12-rc2 |
408 |
} |
d97b07c54 initramfs: suppor... |
409 |
static long __init flush_buffer(void *bufv, unsigned long len) |
1da177e4c Linux-2.6.12-rc2 |
410 |
{ |
30d65dbfe bzip2/lzma: confi... |
411 |
char *buf = (char *) bufv; |
d97b07c54 initramfs: suppor... |
412 413 |
long written; long origLen = len; |
1da177e4c Linux-2.6.12-rc2 |
414 |
if (message) |
30d65dbfe bzip2/lzma: confi... |
415 |
return -1; |
1da177e4c Linux-2.6.12-rc2 |
416 417 418 419 420 421 422 423 424 425 426 427 428 |
while ((written = write_buffer(buf, len)) < len && !message) { char c = buf[written]; if (c == '0') { buf += written; len -= written; state = Start; } else if (c == 0) { buf += written; len -= written; state = Reset; } else error("junk in compressed archive"); } |
30d65dbfe bzip2/lzma: confi... |
429 |
return origLen; |
1da177e4c Linux-2.6.12-rc2 |
430 |
} |
d97b07c54 initramfs: suppor... |
431 |
static unsigned long my_inptr; /* index of next byte to be processed in inbuf */ |
1da177e4c Linux-2.6.12-rc2 |
432 |
|
889c92d21 bzip2/lzma: centr... |
433 |
#include <linux/decompress/generic.h> |
1da177e4c Linux-2.6.12-rc2 |
434 |
|
d97b07c54 initramfs: suppor... |
435 |
static char * __init unpack_to_rootfs(char *buf, unsigned long len) |
1da177e4c Linux-2.6.12-rc2 |
436 |
{ |
d97b07c54 initramfs: suppor... |
437 |
long written; |
889c92d21 bzip2/lzma: centr... |
438 |
decompress_fn decompress; |
23a22d57a bzip2/lzma: compr... |
439 440 |
const char *compress_name; static __initdata char msg_buf[64]; |
889c92d21 bzip2/lzma: centr... |
441 |
|
3265e66b1 directly use kmal... |
442 443 444 |
header_buf = kmalloc(110, GFP_KERNEL); symlink_buf = kmalloc(PATH_MAX + N_ALIGN(PATH_MAX) + 1, GFP_KERNEL); name_buf = kmalloc(N_ALIGN(PATH_MAX), GFP_KERNEL); |
30d65dbfe bzip2/lzma: confi... |
445 446 |
if (!header_buf || !symlink_buf || !name_buf) |
1da177e4c Linux-2.6.12-rc2 |
447 |
panic("can't allocate buffers"); |
30d65dbfe bzip2/lzma: confi... |
448 |
|
1da177e4c Linux-2.6.12-rc2 |
449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 |
state = Start; this_header = 0; message = NULL; while (!message && len) { loff_t saved_offset = this_header; if (*buf == '0' && !(this_header & 3)) { state = Start; written = write_buffer(buf, len); buf += written; len -= written; continue; } if (!*buf) { buf++; len--; this_header++; continue; } this_header = 0; |
23a22d57a bzip2/lzma: compr... |
468 |
decompress = decompress_method(buf, len, &compress_name); |
6aa7a29aa initramfs: debug ... |
469 470 |
pr_debug("Detected %s compressed data ", compress_name); |
54291362d initramfs: add mi... |
471 |
if (decompress) { |
d97b07c54 initramfs: suppor... |
472 |
int res = decompress(buf, len, NULL, flush_buffer, NULL, |
889c92d21 bzip2/lzma: centr... |
473 |
&my_inptr, error); |
54291362d initramfs: add mi... |
474 475 476 |
if (res) error("decompressor failed"); } else if (compress_name) { |
23a22d57a bzip2/lzma: compr... |
477 478 479 480 481 482 |
if (!message) { snprintf(msg_buf, sizeof msg_buf, "compression method %s not configured", compress_name); message = msg_buf; } |
df37bd156 initramfs: handle... |
483 484 |
} else error("junk in compressed archive"); |
1da177e4c Linux-2.6.12-rc2 |
485 |
if (state != Reset) |
30d65dbfe bzip2/lzma: confi... |
486 487 488 489 |
error("junk in compressed archive"); this_header = saved_offset + my_inptr; buf += my_inptr; len -= my_inptr; |
1da177e4c Linux-2.6.12-rc2 |
490 |
} |
889d51a10 initramfs: add op... |
491 |
dir_utime(); |
3265e66b1 directly use kmal... |
492 493 494 |
kfree(name_buf); kfree(symlink_buf); kfree(header_buf); |
1da177e4c Linux-2.6.12-rc2 |
495 496 |
return message; } |
0a7b35cb1 [PATCH] Add retai... |
497 498 499 500 501 502 503 504 505 506 |
static int __initdata do_retain_initrd; static int __init retain_initrd_param(char *str) { if (*str) return 0; do_retain_initrd = 1; return 1; } __setup("retain_initrd", retain_initrd_param); |
ffe8018c3 initramfs: fix in... |
507 508 |
extern char __initramfs_start[]; extern unsigned long __initramfs_size; |
1da177e4c Linux-2.6.12-rc2 |
509 |
#include <linux/initrd.h> |
9c15e852a [PATCH] kexec: fi... |
510 |
#include <linux/kexec.h> |
0f3d2bd54 [PATCH] free init... |
511 512 513 |
static void __init free_initrd(void) { |
2965faa5e kexec: split kexe... |
514 |
#ifdef CONFIG_KEXEC_CORE |
9c15e852a [PATCH] kexec: fi... |
515 516 |
unsigned long crashk_start = (unsigned long)__va(crashk_res.start); unsigned long crashk_end = (unsigned long)__va(crashk_res.end); |
0a7b35cb1 [PATCH] Add retai... |
517 518 519 |
#endif if (do_retain_initrd) goto skip; |
9c15e852a [PATCH] kexec: fi... |
520 |
|
2965faa5e kexec: split kexe... |
521 |
#ifdef CONFIG_KEXEC_CORE |
9c15e852a [PATCH] kexec: fi... |
522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 |
/* * If the initrd region is overlapped with crashkernel reserved region, * free only memory that is not part of crashkernel region. */ if (initrd_start < crashk_end && initrd_end > crashk_start) { /* * Initialize initrd memory region since the kexec boot does * not do. */ memset((void *)initrd_start, 0, initrd_end - initrd_start); if (initrd_start < crashk_start) free_initrd_mem(initrd_start, crashk_start); if (initrd_end > crashk_end) free_initrd_mem(crashk_end, initrd_end); } else #endif free_initrd_mem(initrd_start, initrd_end); |
0a7b35cb1 [PATCH] Add retai... |
539 |
skip: |
0f3d2bd54 [PATCH] free init... |
540 541 542 |
initrd_start = 0; initrd_end = 0; } |
b52bb3712 init/initramfs: f... |
543 |
#ifdef CONFIG_BLK_DEV_RAM |
df52092f3 fastboot: remove ... |
544 545 546 547 548 549 |
#define BUF_SIZE 1024 static void __init clean_rootfs(void) { int fd; void *buf; struct linux_dirent64 *dirp; |
8aaed5bec init/initramfs.c:... |
550 |
int num; |
df52092f3 fastboot: remove ... |
551 |
|
c67e5382f init: disable spa... |
552 |
fd = sys_open("/", O_RDONLY, 0); |
df52092f3 fastboot: remove ... |
553 554 555 556 557 558 559 560 561 562 563 |
WARN_ON(fd < 0); if (fd < 0) return; buf = kzalloc(BUF_SIZE, GFP_KERNEL); WARN_ON(!buf); if (!buf) { sys_close(fd); return; } dirp = buf; |
8aaed5bec init/initramfs.c:... |
564 565 566 |
num = sys_getdents64(fd, dirp, BUF_SIZE); while (num > 0) { while (num > 0) { |
046aa1265 initramfs: use vf... |
567 |
struct kstat st; |
df52092f3 fastboot: remove ... |
568 |
int ret; |
046aa1265 initramfs: use vf... |
569 |
ret = vfs_lstat(dirp->d_name, &st); |
df52092f3 fastboot: remove ... |
570 571 |
WARN_ON_ONCE(ret); if (!ret) { |
046aa1265 initramfs: use vf... |
572 |
if (S_ISDIR(st.mode)) |
df52092f3 fastboot: remove ... |
573 574 575 576 |
sys_rmdir(dirp->d_name); else sys_unlink(dirp->d_name); } |
8aaed5bec init/initramfs.c:... |
577 |
num -= dirp->d_reclen; |
df52092f3 fastboot: remove ... |
578 579 580 581 |
dirp = (void *)dirp + dirp->d_reclen; } dirp = buf; memset(buf, 0, BUF_SIZE); |
8aaed5bec init/initramfs.c:... |
582 |
num = sys_getdents64(fd, dirp, BUF_SIZE); |
df52092f3 fastboot: remove ... |
583 584 585 586 587 |
} sys_close(fd); kfree(buf); } |
b52bb3712 init/initramfs: f... |
588 |
#endif |
df52092f3 fastboot: remove ... |
589 |
|
9a9e0d685 ACPI: Remove ACPI... |
590 |
static int __init populate_rootfs(void) |
1da177e4c Linux-2.6.12-rc2 |
591 |
{ |
17a9be317 initramfs: Always... |
592 |
/* Load the built in initramfs */ |
ffe8018c3 initramfs: fix in... |
593 |
char *err = unpack_to_rootfs(__initramfs_start, __initramfs_size); |
1da177e4c Linux-2.6.12-rc2 |
594 |
if (err) |
499a4584d init: fix possibl... |
595 |
panic("%s", err); /* Failed to decompress INTERNAL initramfs */ |
17a9be317 initramfs: Always... |
596 |
/* If available load the bootloader supplied initrd */ |
cff75e0b6 initramfs: provid... |
597 |
if (initrd_start && !IS_ENABLED(CONFIG_INITRAMFS_FORCE)) { |
340e48e66 [PATCH] BLK_DEV_I... |
598 |
#ifdef CONFIG_BLK_DEV_RAM |
1da177e4c Linux-2.6.12-rc2 |
599 |
int fd; |
a1e6b6c1a initramfs: clean ... |
600 601 |
printk(KERN_INFO "Trying to unpack rootfs image as initramfs... "); |
1da177e4c Linux-2.6.12-rc2 |
602 |
err = unpack_to_rootfs((char *)initrd_start, |
df52092f3 fastboot: remove ... |
603 |
initrd_end - initrd_start); |
1da177e4c Linux-2.6.12-rc2 |
604 |
if (!err) { |
0f3d2bd54 [PATCH] free init... |
605 |
free_initrd(); |
bb813f4c9 init, block: try ... |
606 |
goto done; |
df52092f3 fastboot: remove ... |
607 608 |
} else { clean_rootfs(); |
ffe8018c3 initramfs: fix in... |
609 |
unpack_to_rootfs(__initramfs_start, __initramfs_size); |
1da177e4c Linux-2.6.12-rc2 |
610 |
} |
c1c490e01 initramfs: preven... |
611 612 613 |
printk(KERN_INFO "rootfs image is not initramfs (%s)" "; looks like an initrd ", err); |
c67e5382f init: disable spa... |
614 |
fd = sys_open("/initrd.image", |
562f5e638 init: mark __user... |
615 |
O_WRONLY|O_CREAT, 0700); |
1da177e4c Linux-2.6.12-rc2 |
616 |
if (fd >= 0) { |
387474399 initramfs: suppor... |
617 618 619 620 621 622 623 |
ssize_t written = xwrite(fd, (char *)initrd_start, initrd_end - initrd_start); if (written != initrd_end - initrd_start) pr_err("/initrd.image: incomplete write (%zd != %ld) ", written, initrd_end - initrd_start); |
1da177e4c Linux-2.6.12-rc2 |
624 |
sys_close(fd); |
0f3d2bd54 [PATCH] free init... |
625 |
free_initrd(); |
1da177e4c Linux-2.6.12-rc2 |
626 |
} |
bb813f4c9 init, block: try ... |
627 |
done: |
394e4f5d5 initramfs: avoid ... |
628 |
/* empty statement */; |
340e48e66 [PATCH] BLK_DEV_I... |
629 |
#else |
a1e6b6c1a initramfs: clean ... |
630 631 |
printk(KERN_INFO "Unpacking initramfs... "); |
340e48e66 [PATCH] BLK_DEV_I... |
632 |
err = unpack_to_rootfs((char *)initrd_start, |
df52092f3 fastboot: remove ... |
633 |
initrd_end - initrd_start); |
a1e6b6c1a initramfs: clean ... |
634 635 636 |
if (err) printk(KERN_EMERG "Initramfs unpacking failed: %s ", err); |
340e48e66 [PATCH] BLK_DEV_I... |
637 638 |
free_initrd(); #endif |
1da177e4c Linux-2.6.12-rc2 |
639 |
} |
17a9be317 initramfs: Always... |
640 641 642 643 644 645 |
flush_delayed_fput(); /* * Try loading default modules from initramfs. This gives * us a chance to load before device_initcalls. */ load_default_modules(); |
8d610dd52 Make sure we popu... |
646 |
return 0; |
1da177e4c Linux-2.6.12-rc2 |
647 |
} |
8d610dd52 Make sure we popu... |
648 |
rootfs_initcall(populate_rootfs); |