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()
225 int ubifs_check_node(const struct ubifs_info *c, const void *buf, int lnum, in ubifs_check_node() argument
232 ubifs_assert(c, lnum >= 0 && lnum < c->leb_cnt && offs >= 0); in ubifs_check_node()
233 ubifs_assert(c, !(offs & 7) && offs < c->leb_size); in ubifs_check_node()
238 ubifs_err(c, "bad magic %#08x, expected %#08x", in ubifs_check_node()
247 ubifs_err(c, "bad node type %d", type); in ubifs_check_node()
252 if (node_len + offs > c->leb_size) in ubifs_check_node()
255 if (c->ranges[type].max_len == 0) { in ubifs_check_node()
256 if (node_len != c->ranges[type].len) in ubifs_check_node()
258 } else if (node_len < c->ranges[type].min_len || in ubifs_check_node()
259 node_len > c->ranges[type].max_len) in ubifs_check_node()
262 if (!must_chk_crc && type == UBIFS_DATA_NODE && !c->mounting && in ubifs_check_node()
263 !c->remounting_rw && c->no_chk_data_crc) in ubifs_check_node()
270 ubifs_err(c, "bad CRC: calculated %#08x, read %#08x", in ubifs_check_node()
280 ubifs_err(c, "bad node length %d", node_len); in ubifs_check_node()
283 ubifs_err(c, "bad node at LEB %d:%d", lnum, offs); in ubifs_check_node()
284 ubifs_dump_node(c, buf); in ubifs_check_node()
306 void ubifs_pad(const struct ubifs_info *c, void *buf, int pad) in ubifs_pad() argument
310 ubifs_assert(c, pad >= 0 && !(pad & 7)); in ubifs_pad()
336 static unsigned long long next_sqnum(struct ubifs_info *c) in next_sqnum() argument
340 spin_lock(&c->cnt_lock); in next_sqnum()
341 sqnum = ++c->max_sqnum; in next_sqnum()
342 spin_unlock(&c->cnt_lock); in next_sqnum()
346 ubifs_err(c, "sequence number overflow %llu, end of life", in next_sqnum()
348 ubifs_ro_mode(c, -EINVAL); in next_sqnum()
350 ubifs_warn(c, "running out of sequence numbers, end of life soon"); in next_sqnum()
356 void ubifs_init_node(struct ubifs_info *c, void *node, int len, int pad) in ubifs_init_node() argument
359 unsigned long long sqnum = next_sqnum(c); in ubifs_init_node()
361 ubifs_assert(c, len >= UBIFS_CH_SZ); in ubifs_init_node()
371 pad = ALIGN(len, c->min_io_size) - len; in ubifs_init_node()
372 ubifs_pad(c, node + len, pad); in ubifs_init_node()
376 void ubifs_crc_node(struct ubifs_info *c, void *node, int len) in ubifs_crc_node() argument
400 int ubifs_prepare_node_hmac(struct ubifs_info *c, void *node, int len, in ubifs_prepare_node_hmac() argument
405 ubifs_init_node(c, node, len, pad); in ubifs_prepare_node_hmac()
408 err = ubifs_node_insert_hmac(c, node, len, hmac_offs); in ubifs_prepare_node_hmac()
413 ubifs_crc_node(c, node, len); in ubifs_prepare_node_hmac()
429 void ubifs_prepare_node(struct ubifs_info *c, void *node, int len, int pad) in ubifs_prepare_node() argument
435 ubifs_prepare_node_hmac(c, node, len, 0, pad); in ubifs_prepare_node()
448 void ubifs_prep_grp_node(struct ubifs_info *c, void *node, int len, int last) in ubifs_prep_grp_node() argument
452 unsigned long long sqnum = next_sqnum(c); in ubifs_prep_grp_node()
454 ubifs_assert(c, len >= UBIFS_CH_SZ); in ubifs_prep_grp_node()
480 wbuf->c->need_wbuf_sync = 1; in wbuf_timer_callback_nolock()
481 ubifs_wake_up_bgt(wbuf->c); in wbuf_timer_callback_nolock()
490 static void new_wbuf_timer_nolock(struct ubifs_info *c, struct ubifs_wbuf *wbuf) in new_wbuf_timer_nolock() argument
498 ubifs_assert(c, !hrtimer_active(&wbuf->timer)); in new_wbuf_timer_nolock()
499 ubifs_assert(c, delta <= ULONG_MAX); in new_wbuf_timer_nolock()
538 struct ubifs_info *c = wbuf->c; in ubifs_wbuf_sync_nolock() local
548 ubifs_assert(c, !(wbuf->avail & 7)); in ubifs_wbuf_sync_nolock()
549 ubifs_assert(c, wbuf->offs + wbuf->size <= c->leb_size); in ubifs_wbuf_sync_nolock()
550 ubifs_assert(c, wbuf->size >= c->min_io_size); in ubifs_wbuf_sync_nolock()
551 ubifs_assert(c, wbuf->size <= c->max_write_size); in ubifs_wbuf_sync_nolock()
552 ubifs_assert(c, wbuf->size % c->min_io_size == 0); in ubifs_wbuf_sync_nolock()
553 ubifs_assert(c, !c->ro_media && !c->ro_mount); in ubifs_wbuf_sync_nolock()
554 if (c->leb_size - wbuf->offs >= c->max_write_size) in ubifs_wbuf_sync_nolock()
555 ubifs_assert(c, !((wbuf->offs + wbuf->size) % c->max_write_size)); in ubifs_wbuf_sync_nolock()
557 if (c->ro_error) in ubifs_wbuf_sync_nolock()
564 sync_len = ALIGN(wbuf->used, c->min_io_size); in ubifs_wbuf_sync_nolock()
567 ubifs_pad(c, wbuf->buf + wbuf->used, dirt); in ubifs_wbuf_sync_nolock()
568 err = ubifs_leb_write(c, wbuf->lnum, wbuf->buf, wbuf->offs, sync_len); in ubifs_wbuf_sync_nolock()
584 if (c->leb_size - wbuf->offs < c->max_write_size) in ubifs_wbuf_sync_nolock()
585 wbuf->size = c->leb_size - wbuf->offs; in ubifs_wbuf_sync_nolock()
586 else if (wbuf->offs & (c->max_write_size - 1)) in ubifs_wbuf_sync_nolock()
587 wbuf->size = ALIGN(wbuf->offs, c->max_write_size) - wbuf->offs; in ubifs_wbuf_sync_nolock()
589 wbuf->size = c->max_write_size; in ubifs_wbuf_sync_nolock()
596 err = wbuf->sync_callback(c, wbuf->lnum, in ubifs_wbuf_sync_nolock()
597 c->leb_size - wbuf->offs, dirt); in ubifs_wbuf_sync_nolock()
613 const struct ubifs_info *c = wbuf->c; in ubifs_wbuf_seek_nolock() local
616 ubifs_assert(c, lnum >= 0 && lnum < c->leb_cnt); in ubifs_wbuf_seek_nolock()
617 ubifs_assert(c, offs >= 0 && offs <= c->leb_size); in ubifs_wbuf_seek_nolock()
618 ubifs_assert(c, offs % c->min_io_size == 0 && !(offs & 7)); in ubifs_wbuf_seek_nolock()
619 ubifs_assert(c, lnum != wbuf->lnum); in ubifs_wbuf_seek_nolock()
620 ubifs_assert(c, wbuf->used == 0); in ubifs_wbuf_seek_nolock()
625 if (c->leb_size - wbuf->offs < c->max_write_size) in ubifs_wbuf_seek_nolock()
626 wbuf->size = c->leb_size - wbuf->offs; in ubifs_wbuf_seek_nolock()
627 else if (wbuf->offs & (c->max_write_size - 1)) in ubifs_wbuf_seek_nolock()
628 wbuf->size = ALIGN(wbuf->offs, c->max_write_size) - wbuf->offs; in ubifs_wbuf_seek_nolock()
630 wbuf->size = c->max_write_size; in ubifs_wbuf_seek_nolock()
646 int ubifs_bg_wbufs_sync(struct ubifs_info *c) in ubifs_bg_wbufs_sync() argument
650 ubifs_assert(c, !c->ro_media && !c->ro_mount); in ubifs_bg_wbufs_sync()
651 if (!c->need_wbuf_sync) in ubifs_bg_wbufs_sync()
653 c->need_wbuf_sync = 0; in ubifs_bg_wbufs_sync()
655 if (c->ro_error) { in ubifs_bg_wbufs_sync()
661 for (i = 0; i < c->jhead_cnt; i++) { in ubifs_bg_wbufs_sync()
662 struct ubifs_wbuf *wbuf = &c->jheads[i].wbuf; in ubifs_bg_wbufs_sync()
682 ubifs_err(c, "cannot sync write-buffer, error %d", err); in ubifs_bg_wbufs_sync()
683 ubifs_ro_mode(c, err); in ubifs_bg_wbufs_sync()
692 for (i = 0; i < c->jhead_cnt; i++) { in ubifs_bg_wbufs_sync()
693 struct ubifs_wbuf *wbuf = &c->jheads[i].wbuf; in ubifs_bg_wbufs_sync()
720 struct ubifs_info *c = wbuf->c; in ubifs_wbuf_write_nolock() local
726 ubifs_assert(c, len > 0 && wbuf->lnum >= 0 && wbuf->lnum < c->leb_cnt); in ubifs_wbuf_write_nolock()
727 ubifs_assert(c, wbuf->offs >= 0 && wbuf->offs % c->min_io_size == 0); in ubifs_wbuf_write_nolock()
728 ubifs_assert(c, !(wbuf->offs & 7) && wbuf->offs <= c->leb_size); in ubifs_wbuf_write_nolock()
729 ubifs_assert(c, wbuf->avail > 0 && wbuf->avail <= wbuf->size); in ubifs_wbuf_write_nolock()
730 ubifs_assert(c, wbuf->size >= c->min_io_size); in ubifs_wbuf_write_nolock()
731 ubifs_assert(c, wbuf->size <= c->max_write_size); in ubifs_wbuf_write_nolock()
732 ubifs_assert(c, wbuf->size % c->min_io_size == 0); in ubifs_wbuf_write_nolock()
733 ubifs_assert(c, mutex_is_locked(&wbuf->io_mutex)); in ubifs_wbuf_write_nolock()
734 ubifs_assert(c, !c->ro_media && !c->ro_mount); in ubifs_wbuf_write_nolock()
735 ubifs_assert(c, !c->space_fixup); in ubifs_wbuf_write_nolock()
736 if (c->leb_size - wbuf->offs >= c->max_write_size) in ubifs_wbuf_write_nolock()
737 ubifs_assert(c, !((wbuf->offs + wbuf->size) % c->max_write_size)); in ubifs_wbuf_write_nolock()
739 if (c->leb_size - wbuf->offs - wbuf->used < aligned_len) { in ubifs_wbuf_write_nolock()
746 if (c->ro_error) in ubifs_wbuf_write_nolock()
759 err = ubifs_leb_write(c, wbuf->lnum, wbuf->buf, in ubifs_wbuf_write_nolock()
766 if (c->leb_size - wbuf->offs >= c->max_write_size) in ubifs_wbuf_write_nolock()
767 wbuf->size = c->max_write_size; in ubifs_wbuf_write_nolock()
769 wbuf->size = c->leb_size - wbuf->offs; in ubifs_wbuf_write_nolock()
795 err = ubifs_leb_write(c, wbuf->lnum, wbuf->buf, wbuf->offs, in ubifs_wbuf_write_nolock()
804 } else if (wbuf->offs & (c->max_write_size - 1)) { in ubifs_wbuf_write_nolock()
814 err = ubifs_leb_write(c, wbuf->lnum, buf, wbuf->offs, in ubifs_wbuf_write_nolock()
831 n = aligned_len >> c->max_write_shift; in ubifs_wbuf_write_nolock()
833 n <<= c->max_write_shift; in ubifs_wbuf_write_nolock()
836 err = ubifs_leb_write(c, wbuf->lnum, buf + written, in ubifs_wbuf_write_nolock()
855 if (c->leb_size - wbuf->offs >= c->max_write_size) in ubifs_wbuf_write_nolock()
856 wbuf->size = c->max_write_size; in ubifs_wbuf_write_nolock()
858 wbuf->size = c->leb_size - wbuf->offs; in ubifs_wbuf_write_nolock()
866 int free = c->leb_size - wbuf->offs - wbuf->used; in ubifs_wbuf_write_nolock()
868 err = wbuf->sync_callback(c, wbuf->lnum, free, 0); in ubifs_wbuf_write_nolock()
874 new_wbuf_timer_nolock(c, wbuf); in ubifs_wbuf_write_nolock()
879 ubifs_err(c, "cannot write %d bytes to LEB %d:%d, error %d", in ubifs_wbuf_write_nolock()
881 ubifs_dump_node(c, buf); in ubifs_wbuf_write_nolock()
883 ubifs_dump_leb(c, wbuf->lnum); in ubifs_wbuf_write_nolock()
902 int ubifs_write_node_hmac(struct ubifs_info *c, void *buf, int len, int lnum, in ubifs_write_node_hmac() argument
905 int err, buf_len = ALIGN(len, c->min_io_size); in ubifs_write_node_hmac()
910 ubifs_assert(c, lnum >= 0 && lnum < c->leb_cnt && offs >= 0); in ubifs_write_node_hmac()
911 ubifs_assert(c, offs % c->min_io_size == 0 && offs < c->leb_size); in ubifs_write_node_hmac()
912 ubifs_assert(c, !c->ro_media && !c->ro_mount); in ubifs_write_node_hmac()
913 ubifs_assert(c, !c->space_fixup); in ubifs_write_node_hmac()
915 if (c->ro_error) in ubifs_write_node_hmac()
918 err = ubifs_prepare_node_hmac(c, buf, len, hmac_offs, 1); in ubifs_write_node_hmac()
922 err = ubifs_leb_write(c, lnum, buf, offs, buf_len); in ubifs_write_node_hmac()
924 ubifs_dump_node(c, buf); in ubifs_write_node_hmac()
943 int ubifs_write_node(struct ubifs_info *c, void *buf, int len, int lnum, in ubifs_write_node() argument
946 return ubifs_write_node_hmac(c, buf, len, lnum, offs, -1); in ubifs_write_node()
967 const struct ubifs_info *c = wbuf->c; in ubifs_read_node_wbuf() local
973 ubifs_assert(c, wbuf && lnum >= 0 && lnum < c->leb_cnt && offs >= 0); in ubifs_read_node_wbuf()
974 ubifs_assert(c, !(offs & 7) && offs < c->leb_size); in ubifs_read_node_wbuf()
975 ubifs_assert(c, type >= 0 && type < UBIFS_NODE_TYPES_CNT); in ubifs_read_node_wbuf()
982 return ubifs_read_node(c, buf, type, len, lnum, offs); in ubifs_read_node_wbuf()
996 err = ubifs_leb_read(c, lnum, buf, offs, rlen, 0); in ubifs_read_node_wbuf()
1002 ubifs_err(c, "bad node type (%d but expected %d)", in ubifs_read_node_wbuf()
1007 err = ubifs_check_node(c, buf, lnum, offs, 0, 0); in ubifs_read_node_wbuf()
1009 ubifs_err(c, "expected node type %d", type); in ubifs_read_node_wbuf()
1015 ubifs_err(c, "bad node length %d, expected %d", rlen, len); in ubifs_read_node_wbuf()
1022 ubifs_err(c, "bad node at LEB %d:%d", lnum, offs); in ubifs_read_node_wbuf()
1023 ubifs_dump_node(c, buf); in ubifs_read_node_wbuf()
1041 int ubifs_read_node(const struct ubifs_info *c, void *buf, int type, int len, in ubifs_read_node() argument
1048 ubifs_assert(c, lnum >= 0 && lnum < c->leb_cnt && offs >= 0); in ubifs_read_node()
1049 ubifs_assert(c, len >= UBIFS_CH_SZ && offs + len <= c->leb_size); in ubifs_read_node()
1050 ubifs_assert(c, !(offs & 7) && offs < c->leb_size); in ubifs_read_node()
1051 ubifs_assert(c, type >= 0 && type < UBIFS_NODE_TYPES_CNT); in ubifs_read_node()
1053 err = ubifs_leb_read(c, lnum, buf, offs, len, 0); in ubifs_read_node()
1058 ubifs_errc(c, "bad node type (%d but expected %d)", in ubifs_read_node()
1063 err = ubifs_check_node(c, buf, lnum, offs, 0, 0); in ubifs_read_node()
1065 ubifs_errc(c, "expected node type %d", type); in ubifs_read_node()
1071 ubifs_errc(c, "bad node length %d, expected %d", l, len); in ubifs_read_node()
1078 ubifs_errc(c, "bad node at LEB %d:%d, LEB mapping status %d", lnum, in ubifs_read_node()
1079 offs, ubi_is_mapped(c->ubi, lnum)); in ubifs_read_node()
1080 if (!c->probing) { in ubifs_read_node()
1081 ubifs_dump_node(c, buf); in ubifs_read_node()
1095 int ubifs_wbuf_init(struct ubifs_info *c, struct ubifs_wbuf *wbuf) in ubifs_wbuf_init() argument
1099 wbuf->buf = kmalloc(c->max_write_size, GFP_KERNEL); in ubifs_wbuf_init()
1103 size = (c->max_write_size / UBIFS_CH_SZ + 1) * sizeof(ino_t); in ubifs_wbuf_init()
1119 size = c->max_write_size - (c->leb_start % c->max_write_size); in ubifs_wbuf_init()
1124 wbuf->c = c; in ubifs_wbuf_init()
1183 int ubifs_sync_wbufs_by_inode(struct ubifs_info *c, struct inode *inode) in ubifs_sync_wbufs_by_inode() argument
1187 for (i = 0; i < c->jhead_cnt; i++) { in ubifs_sync_wbufs_by_inode()
1188 struct ubifs_wbuf *wbuf = &c->jheads[i].wbuf; in ubifs_sync_wbufs_by_inode()
1208 ubifs_ro_mode(c, err); in ubifs_sync_wbufs_by_inode()