Lines Matching refs:c
70 void ubifs_ro_mode(struct ubifs_info *c, int err) in ubifs_ro_mode() argument
72 if (!c->ro_error) { in ubifs_ro_mode()
73 c->ro_error = 1; in ubifs_ro_mode()
74 c->no_chk_data_crc = 0; in ubifs_ro_mode()
75 c->vfs_sb->s_flags |= SB_RDONLY; in ubifs_ro_mode()
76 ubifs_warn(c, "switched to read-only mode, error %d", err); in ubifs_ro_mode()
87 int ubifs_leb_read(const struct ubifs_info *c, int lnum, void *buf, int offs, in ubifs_leb_read() argument
92 err = ubi_read(c->ubi, lnum, buf, offs, len); in ubifs_leb_read()
98 ubifs_err(c, "reading %d bytes from LEB %d:%d failed, error %d", in ubifs_leb_read()
105 int ubifs_leb_write(struct ubifs_info *c, int lnum, const void *buf, int offs, in ubifs_leb_write() argument
110 ubifs_assert(c, !c->ro_media && !c->ro_mount); in ubifs_leb_write()
111 if (c->ro_error) in ubifs_leb_write()
113 if (!dbg_is_tst_rcvry(c)) in ubifs_leb_write()
114 err = ubi_leb_write(c->ubi, lnum, buf, offs, len); in ubifs_leb_write()
116 err = dbg_leb_write(c, lnum, buf, offs, len); in ubifs_leb_write()
118 ubifs_err(c, "writing %d bytes to LEB %d:%d failed, error %d", in ubifs_leb_write()
120 ubifs_ro_mode(c, err); in ubifs_leb_write()
126 int ubifs_leb_change(struct ubifs_info *c, int lnum, const void *buf, int len) in ubifs_leb_change() argument
130 ubifs_assert(c, !c->ro_media && !c->ro_mount); in ubifs_leb_change()
131 if (c->ro_error) in ubifs_leb_change()
133 if (!dbg_is_tst_rcvry(c)) in ubifs_leb_change()
134 err = ubi_leb_change(c->ubi, lnum, buf, len); in ubifs_leb_change()
136 err = dbg_leb_change(c, lnum, buf, len); in ubifs_leb_change()
138 ubifs_err(c, "changing %d bytes in LEB %d failed, error %d", in ubifs_leb_change()
140 ubifs_ro_mode(c, err); in ubifs_leb_change()
146 int ubifs_leb_unmap(struct ubifs_info *c, int lnum) in ubifs_leb_unmap() argument
150 ubifs_assert(c, !c->ro_media && !c->ro_mount); in ubifs_leb_unmap()
151 if (c->ro_error) in ubifs_leb_unmap()
153 if (!dbg_is_tst_rcvry(c)) in ubifs_leb_unmap()
154 err = ubi_leb_unmap(c->ubi, lnum); in ubifs_leb_unmap()
156 err = dbg_leb_unmap(c, lnum); in ubifs_leb_unmap()
158 ubifs_err(c, "unmap LEB %d failed, error %d", lnum, err); in ubifs_leb_unmap()
159 ubifs_ro_mode(c, err); in ubifs_leb_unmap()
165 int ubifs_leb_map(struct ubifs_info *c, int lnum) in ubifs_leb_map() argument
169 ubifs_assert(c, !c->ro_media && !c->ro_mount); in ubifs_leb_map()
170 if (c->ro_error) in ubifs_leb_map()
172 if (!dbg_is_tst_rcvry(c)) in ubifs_leb_map()
173 err = ubi_leb_map(c->ubi, lnum); in ubifs_leb_map()
175 err = dbg_leb_map(c, lnum); in ubifs_leb_map()
177 ubifs_err(c, "mapping LEB %d failed, error %d", lnum, err); in ubifs_leb_map()
178 ubifs_ro_mode(c, err); in ubifs_leb_map()
184 int ubifs_is_mapped(const struct ubifs_info *c, int lnum) in ubifs_is_mapped() argument
188 err = ubi_is_mapped(c->ubi, lnum); in ubifs_is_mapped()
190 ubifs_err(c, "ubi_is_mapped failed for LEB %d, error %d", in ubifs_is_mapped()
244 int ubifs_check_node(const struct ubifs_info *c, const void *buf, int len, in ubifs_check_node() argument
251 ubifs_assert(c, lnum >= 0 && lnum < c->leb_cnt && offs >= 0); in ubifs_check_node()
252 ubifs_assert(c, !(offs & 7) && offs < c->leb_size); in ubifs_check_node()
257 ubifs_err(c, "bad magic %#08x, expected %#08x", in ubifs_check_node()
259 record_magic_error(c->stats); in ubifs_check_node()
267 ubifs_err(c, "bad node type %d", type); in ubifs_check_node()
268 record_node_error(c->stats); in ubifs_check_node()
273 if (node_len + offs > c->leb_size) in ubifs_check_node()
276 if (c->ranges[type].max_len == 0) { in ubifs_check_node()
277 if (node_len != c->ranges[type].len) in ubifs_check_node()
279 } else if (node_len < c->ranges[type].min_len || in ubifs_check_node()
280 node_len > c->ranges[type].max_len) in ubifs_check_node()
283 if (!must_chk_crc && type == UBIFS_DATA_NODE && !c->mounting && in ubifs_check_node()
284 !c->remounting_rw && c->no_chk_data_crc) in ubifs_check_node()
291 ubifs_err(c, "bad CRC: calculated %#08x, read %#08x", in ubifs_check_node()
293 record_crc_error(c->stats); in ubifs_check_node()
302 ubifs_err(c, "bad node length %d", node_len); in ubifs_check_node()
305 ubifs_err(c, "bad node at LEB %d:%d", lnum, offs); in ubifs_check_node()
306 ubifs_dump_node(c, buf, len); in ubifs_check_node()
328 void ubifs_pad(const struct ubifs_info *c, void *buf, int pad) in ubifs_pad() argument
332 ubifs_assert(c, pad >= 0); in ubifs_pad()
358 static unsigned long long next_sqnum(struct ubifs_info *c) in next_sqnum() argument
362 spin_lock(&c->cnt_lock); in next_sqnum()
363 sqnum = ++c->max_sqnum; in next_sqnum()
364 spin_unlock(&c->cnt_lock); in next_sqnum()
368 ubifs_err(c, "sequence number overflow %llu, end of life", in next_sqnum()
370 ubifs_ro_mode(c, -EINVAL); in next_sqnum()
372 ubifs_warn(c, "running out of sequence numbers, end of life soon"); in next_sqnum()
378 void ubifs_init_node(struct ubifs_info *c, void *node, int len, int pad) in ubifs_init_node() argument
381 unsigned long long sqnum = next_sqnum(c); in ubifs_init_node()
383 ubifs_assert(c, len >= UBIFS_CH_SZ); in ubifs_init_node()
393 pad = ALIGN(len, c->min_io_size) - len; in ubifs_init_node()
394 ubifs_pad(c, node + len, pad); in ubifs_init_node()
398 void ubifs_crc_node(struct ubifs_info *c, void *node, int len) in ubifs_crc_node() argument
422 int ubifs_prepare_node_hmac(struct ubifs_info *c, void *node, int len, in ubifs_prepare_node_hmac() argument
427 ubifs_init_node(c, node, len, pad); in ubifs_prepare_node_hmac()
430 err = ubifs_node_insert_hmac(c, node, len, hmac_offs); in ubifs_prepare_node_hmac()
435 ubifs_crc_node(c, node, len); in ubifs_prepare_node_hmac()
451 void ubifs_prepare_node(struct ubifs_info *c, void *node, int len, int pad) in ubifs_prepare_node() argument
457 ubifs_prepare_node_hmac(c, node, len, 0, pad); in ubifs_prepare_node()
470 void ubifs_prep_grp_node(struct ubifs_info *c, void *node, int len, int last) in ubifs_prep_grp_node() argument
474 unsigned long long sqnum = next_sqnum(c); in ubifs_prep_grp_node()
476 ubifs_assert(c, len >= UBIFS_CH_SZ); in ubifs_prep_grp_node()
502 wbuf->c->need_wbuf_sync = 1; in wbuf_timer_callback_nolock()
503 ubifs_wake_up_bgt(wbuf->c); in wbuf_timer_callback_nolock()
512 static void new_wbuf_timer_nolock(struct ubifs_info *c, struct ubifs_wbuf *wbuf) in new_wbuf_timer_nolock() argument
520 ubifs_assert(c, !hrtimer_active(&wbuf->timer)); in new_wbuf_timer_nolock()
521 ubifs_assert(c, delta <= ULONG_MAX); in new_wbuf_timer_nolock()
560 struct ubifs_info *c = wbuf->c; in ubifs_wbuf_sync_nolock() local
570 ubifs_assert(c, !(wbuf->avail & 7)); in ubifs_wbuf_sync_nolock()
571 ubifs_assert(c, wbuf->offs + wbuf->size <= c->leb_size); in ubifs_wbuf_sync_nolock()
572 ubifs_assert(c, wbuf->size >= c->min_io_size); in ubifs_wbuf_sync_nolock()
573 ubifs_assert(c, wbuf->size <= c->max_write_size); in ubifs_wbuf_sync_nolock()
574 ubifs_assert(c, wbuf->size % c->min_io_size == 0); in ubifs_wbuf_sync_nolock()
575 ubifs_assert(c, !c->ro_media && !c->ro_mount); in ubifs_wbuf_sync_nolock()
576 if (c->leb_size - wbuf->offs >= c->max_write_size) in ubifs_wbuf_sync_nolock()
577 ubifs_assert(c, !((wbuf->offs + wbuf->size) % c->max_write_size)); in ubifs_wbuf_sync_nolock()
579 if (c->ro_error) in ubifs_wbuf_sync_nolock()
586 sync_len = ALIGN(wbuf->used, c->min_io_size); in ubifs_wbuf_sync_nolock()
589 ubifs_pad(c, wbuf->buf + wbuf->used, dirt); in ubifs_wbuf_sync_nolock()
590 err = ubifs_leb_write(c, wbuf->lnum, wbuf->buf, wbuf->offs, sync_len); in ubifs_wbuf_sync_nolock()
606 if (c->leb_size - wbuf->offs < c->max_write_size) in ubifs_wbuf_sync_nolock()
607 wbuf->size = c->leb_size - wbuf->offs; in ubifs_wbuf_sync_nolock()
608 else if (wbuf->offs & (c->max_write_size - 1)) in ubifs_wbuf_sync_nolock()
609 wbuf->size = ALIGN(wbuf->offs, c->max_write_size) - wbuf->offs; in ubifs_wbuf_sync_nolock()
611 wbuf->size = c->max_write_size; in ubifs_wbuf_sync_nolock()
618 err = wbuf->sync_callback(c, wbuf->lnum, in ubifs_wbuf_sync_nolock()
619 c->leb_size - wbuf->offs, dirt); in ubifs_wbuf_sync_nolock()
635 const struct ubifs_info *c = wbuf->c; in ubifs_wbuf_seek_nolock() local
638 ubifs_assert(c, lnum >= 0 && lnum < c->leb_cnt); in ubifs_wbuf_seek_nolock()
639 ubifs_assert(c, offs >= 0 && offs <= c->leb_size); in ubifs_wbuf_seek_nolock()
640 ubifs_assert(c, offs % c->min_io_size == 0 && !(offs & 7)); in ubifs_wbuf_seek_nolock()
641 ubifs_assert(c, lnum != wbuf->lnum); in ubifs_wbuf_seek_nolock()
642 ubifs_assert(c, wbuf->used == 0); in ubifs_wbuf_seek_nolock()
647 if (c->leb_size - wbuf->offs < c->max_write_size) in ubifs_wbuf_seek_nolock()
648 wbuf->size = c->leb_size - wbuf->offs; in ubifs_wbuf_seek_nolock()
649 else if (wbuf->offs & (c->max_write_size - 1)) in ubifs_wbuf_seek_nolock()
650 wbuf->size = ALIGN(wbuf->offs, c->max_write_size) - wbuf->offs; in ubifs_wbuf_seek_nolock()
652 wbuf->size = c->max_write_size; in ubifs_wbuf_seek_nolock()
668 int ubifs_bg_wbufs_sync(struct ubifs_info *c) in ubifs_bg_wbufs_sync() argument
672 ubifs_assert(c, !c->ro_media && !c->ro_mount); in ubifs_bg_wbufs_sync()
673 if (!c->need_wbuf_sync) in ubifs_bg_wbufs_sync()
675 c->need_wbuf_sync = 0; in ubifs_bg_wbufs_sync()
677 if (c->ro_error) { in ubifs_bg_wbufs_sync()
683 for (i = 0; i < c->jhead_cnt; i++) { in ubifs_bg_wbufs_sync()
684 struct ubifs_wbuf *wbuf = &c->jheads[i].wbuf; in ubifs_bg_wbufs_sync()
704 ubifs_err(c, "cannot sync write-buffer, error %d", err); in ubifs_bg_wbufs_sync()
705 ubifs_ro_mode(c, err); in ubifs_bg_wbufs_sync()
714 for (i = 0; i < c->jhead_cnt; i++) { in ubifs_bg_wbufs_sync()
715 struct ubifs_wbuf *wbuf = &c->jheads[i].wbuf; in ubifs_bg_wbufs_sync()
742 struct ubifs_info *c = wbuf->c; in ubifs_wbuf_write_nolock() local
748 ubifs_assert(c, len > 0 && wbuf->lnum >= 0 && wbuf->lnum < c->leb_cnt); in ubifs_wbuf_write_nolock()
749 ubifs_assert(c, wbuf->offs >= 0 && wbuf->offs % c->min_io_size == 0); in ubifs_wbuf_write_nolock()
750 ubifs_assert(c, !(wbuf->offs & 7) && wbuf->offs <= c->leb_size); in ubifs_wbuf_write_nolock()
751 ubifs_assert(c, wbuf->avail > 0 && wbuf->avail <= wbuf->size); in ubifs_wbuf_write_nolock()
752 ubifs_assert(c, wbuf->size >= c->min_io_size); in ubifs_wbuf_write_nolock()
753 ubifs_assert(c, wbuf->size <= c->max_write_size); in ubifs_wbuf_write_nolock()
754 ubifs_assert(c, wbuf->size % c->min_io_size == 0); in ubifs_wbuf_write_nolock()
755 ubifs_assert(c, mutex_is_locked(&wbuf->io_mutex)); in ubifs_wbuf_write_nolock()
756 ubifs_assert(c, !c->ro_media && !c->ro_mount); in ubifs_wbuf_write_nolock()
757 ubifs_assert(c, !c->space_fixup); in ubifs_wbuf_write_nolock()
758 if (c->leb_size - wbuf->offs >= c->max_write_size) in ubifs_wbuf_write_nolock()
759 ubifs_assert(c, !((wbuf->offs + wbuf->size) % c->max_write_size)); in ubifs_wbuf_write_nolock()
761 if (c->leb_size - wbuf->offs - wbuf->used < aligned_len) { in ubifs_wbuf_write_nolock()
768 if (c->ro_error) in ubifs_wbuf_write_nolock()
778 ubifs_assert(c, aligned_len - len < 8); in ubifs_wbuf_write_nolock()
779 ubifs_pad(c, wbuf->buf + wbuf->used + len, aligned_len - len); in ubifs_wbuf_write_nolock()
785 err = ubifs_leb_write(c, wbuf->lnum, wbuf->buf, in ubifs_wbuf_write_nolock()
792 if (c->leb_size - wbuf->offs >= c->max_write_size) in ubifs_wbuf_write_nolock()
793 wbuf->size = c->max_write_size; in ubifs_wbuf_write_nolock()
795 wbuf->size = c->leb_size - wbuf->offs; in ubifs_wbuf_write_nolock()
819 err = ubifs_leb_write(c, wbuf->lnum, wbuf->buf, wbuf->offs, in ubifs_wbuf_write_nolock()
828 } else if (wbuf->offs & (c->max_write_size - 1)) { in ubifs_wbuf_write_nolock()
838 err = ubifs_leb_write(c, wbuf->lnum, buf, wbuf->offs, in ubifs_wbuf_write_nolock()
855 n = aligned_len >> c->max_write_shift; in ubifs_wbuf_write_nolock()
864 m <<= c->max_write_shift; in ubifs_wbuf_write_nolock()
865 err = ubifs_leb_write(c, wbuf->lnum, buf + written, in ubifs_wbuf_write_nolock()
880 n = 1 << c->max_write_shift; in ubifs_wbuf_write_nolock()
883 ubifs_assert(c, n - len < 8); in ubifs_wbuf_write_nolock()
884 ubifs_pad(c, wbuf->buf + len, n - len); in ubifs_wbuf_write_nolock()
887 err = ubifs_leb_write(c, wbuf->lnum, wbuf->buf, wbuf->offs, n); in ubifs_wbuf_write_nolock()
905 ubifs_assert(c, aligned_len - len < 8); in ubifs_wbuf_write_nolock()
906 ubifs_pad(c, wbuf->buf + len, aligned_len - len); in ubifs_wbuf_write_nolock()
910 if (c->leb_size - wbuf->offs >= c->max_write_size) in ubifs_wbuf_write_nolock()
911 wbuf->size = c->max_write_size; in ubifs_wbuf_write_nolock()
913 wbuf->size = c->leb_size - wbuf->offs; in ubifs_wbuf_write_nolock()
921 int free = c->leb_size - wbuf->offs - wbuf->used; in ubifs_wbuf_write_nolock()
923 err = wbuf->sync_callback(c, wbuf->lnum, free, 0); in ubifs_wbuf_write_nolock()
929 new_wbuf_timer_nolock(c, wbuf); in ubifs_wbuf_write_nolock()
934 ubifs_err(c, "cannot write %d bytes to LEB %d:%d, error %d", in ubifs_wbuf_write_nolock()
936 ubifs_dump_node(c, buf, written + len); in ubifs_wbuf_write_nolock()
938 ubifs_dump_leb(c, wbuf->lnum); in ubifs_wbuf_write_nolock()
957 int ubifs_write_node_hmac(struct ubifs_info *c, void *buf, int len, int lnum, in ubifs_write_node_hmac() argument
960 int err, buf_len = ALIGN(len, c->min_io_size); in ubifs_write_node_hmac()
965 ubifs_assert(c, lnum >= 0 && lnum < c->leb_cnt && offs >= 0); in ubifs_write_node_hmac()
966 ubifs_assert(c, offs % c->min_io_size == 0 && offs < c->leb_size); in ubifs_write_node_hmac()
967 ubifs_assert(c, !c->ro_media && !c->ro_mount); in ubifs_write_node_hmac()
968 ubifs_assert(c, !c->space_fixup); in ubifs_write_node_hmac()
970 if (c->ro_error) in ubifs_write_node_hmac()
973 err = ubifs_prepare_node_hmac(c, buf, len, hmac_offs, 1); in ubifs_write_node_hmac()
977 err = ubifs_leb_write(c, lnum, buf, offs, buf_len); in ubifs_write_node_hmac()
979 ubifs_dump_node(c, buf, len); in ubifs_write_node_hmac()
998 int ubifs_write_node(struct ubifs_info *c, void *buf, int len, int lnum, in ubifs_write_node() argument
1001 return ubifs_write_node_hmac(c, buf, len, lnum, offs, -1); in ubifs_write_node()
1022 const struct ubifs_info *c = wbuf->c; in ubifs_read_node_wbuf() local
1028 ubifs_assert(c, wbuf && lnum >= 0 && lnum < c->leb_cnt && offs >= 0); in ubifs_read_node_wbuf()
1029 ubifs_assert(c, !(offs & 7) && offs < c->leb_size); in ubifs_read_node_wbuf()
1030 ubifs_assert(c, type >= 0 && type < UBIFS_NODE_TYPES_CNT); in ubifs_read_node_wbuf()
1037 return ubifs_read_node(c, buf, type, len, lnum, offs); in ubifs_read_node_wbuf()
1051 err = ubifs_leb_read(c, lnum, buf, offs, rlen, 0); in ubifs_read_node_wbuf()
1057 ubifs_err(c, "bad node type (%d but expected %d)", in ubifs_read_node_wbuf()
1062 err = ubifs_check_node(c, buf, len, lnum, offs, 0, 0); in ubifs_read_node_wbuf()
1064 ubifs_err(c, "expected node type %d", type); in ubifs_read_node_wbuf()
1070 ubifs_err(c, "bad node length %d, expected %d", rlen, len); in ubifs_read_node_wbuf()
1077 ubifs_err(c, "bad node at LEB %d:%d", lnum, offs); in ubifs_read_node_wbuf()
1078 ubifs_dump_node(c, buf, len); in ubifs_read_node_wbuf()
1096 int ubifs_read_node(const struct ubifs_info *c, void *buf, int type, int len, in ubifs_read_node() argument
1103 ubifs_assert(c, lnum >= 0 && lnum < c->leb_cnt && offs >= 0); in ubifs_read_node()
1104 ubifs_assert(c, len >= UBIFS_CH_SZ && offs + len <= c->leb_size); in ubifs_read_node()
1105 ubifs_assert(c, !(offs & 7) && offs < c->leb_size); in ubifs_read_node()
1106 ubifs_assert(c, type >= 0 && type < UBIFS_NODE_TYPES_CNT); in ubifs_read_node()
1108 err = ubifs_leb_read(c, lnum, buf, offs, len, 0); in ubifs_read_node()
1113 ubifs_errc(c, "bad node type (%d but expected %d)", in ubifs_read_node()
1118 err = ubifs_check_node(c, buf, len, lnum, offs, 0, 0); in ubifs_read_node()
1120 ubifs_errc(c, "expected node type %d", type); in ubifs_read_node()
1126 ubifs_errc(c, "bad node length %d, expected %d", l, len); in ubifs_read_node()
1133 ubifs_errc(c, "bad node at LEB %d:%d, LEB mapping status %d", lnum, in ubifs_read_node()
1134 offs, ubi_is_mapped(c->ubi, lnum)); in ubifs_read_node()
1135 if (!c->probing) { in ubifs_read_node()
1136 ubifs_dump_node(c, buf, len); in ubifs_read_node()
1150 int ubifs_wbuf_init(struct ubifs_info *c, struct ubifs_wbuf *wbuf) in ubifs_wbuf_init() argument
1154 wbuf->buf = kmalloc(c->max_write_size, GFP_KERNEL); in ubifs_wbuf_init()
1158 size = (c->max_write_size / UBIFS_CH_SZ + 1) * sizeof(ino_t); in ubifs_wbuf_init()
1174 size = c->max_write_size - (c->leb_start % c->max_write_size); in ubifs_wbuf_init()
1179 wbuf->c = c; in ubifs_wbuf_init()
1238 int ubifs_sync_wbufs_by_inode(struct ubifs_info *c, struct inode *inode) in ubifs_sync_wbufs_by_inode() argument
1242 for (i = 0; i < c->jhead_cnt; i++) { in ubifs_sync_wbufs_by_inode()
1243 struct ubifs_wbuf *wbuf = &c->jheads[i].wbuf; in ubifs_sync_wbufs_by_inode()
1263 ubifs_ro_mode(c, err); in ubifs_sync_wbufs_by_inode()