Lines Matching refs:wbuf
442 struct ubifs_wbuf *wbuf = container_of(timer, struct ubifs_wbuf, timer); in wbuf_timer_callback_nolock() local
444 dbg_io("jhead %s", dbg_jhead(wbuf->jhead)); in wbuf_timer_callback_nolock()
445 wbuf->need_sync = 1; in wbuf_timer_callback_nolock()
446 wbuf->c->need_wbuf_sync = 1; in wbuf_timer_callback_nolock()
447 ubifs_wake_up_bgt(wbuf->c); in wbuf_timer_callback_nolock()
455 static void new_wbuf_timer_nolock(struct ubifs_wbuf *wbuf) in new_wbuf_timer_nolock() argument
457 ubifs_assert(!hrtimer_active(&wbuf->timer)); in new_wbuf_timer_nolock()
459 if (wbuf->no_timer) in new_wbuf_timer_nolock()
462 dbg_jhead(wbuf->jhead), in new_wbuf_timer_nolock()
463 div_u64(ktime_to_ns(wbuf->softlimit), USEC_PER_SEC), in new_wbuf_timer_nolock()
464 div_u64(ktime_to_ns(wbuf->softlimit) + wbuf->delta, in new_wbuf_timer_nolock()
466 hrtimer_start_range_ns(&wbuf->timer, wbuf->softlimit, wbuf->delta, in new_wbuf_timer_nolock()
475 static void cancel_wbuf_timer_nolock(struct ubifs_wbuf *wbuf) in cancel_wbuf_timer_nolock() argument
477 if (wbuf->no_timer) in cancel_wbuf_timer_nolock()
479 wbuf->need_sync = 0; in cancel_wbuf_timer_nolock()
481 hrtimer_cancel(&wbuf->timer); in cancel_wbuf_timer_nolock()
498 int ubifs_wbuf_sync_nolock(struct ubifs_wbuf *wbuf) in ubifs_wbuf_sync_nolock() argument
500 struct ubifs_info *c = wbuf->c; in ubifs_wbuf_sync_nolock()
503 cancel_wbuf_timer_nolock(wbuf); in ubifs_wbuf_sync_nolock()
504 if (!wbuf->used || wbuf->lnum == -1) in ubifs_wbuf_sync_nolock()
509 wbuf->lnum, wbuf->offs, wbuf->used, dbg_jhead(wbuf->jhead)); in ubifs_wbuf_sync_nolock()
510 ubifs_assert(!(wbuf->avail & 7)); in ubifs_wbuf_sync_nolock()
511 ubifs_assert(wbuf->offs + wbuf->size <= c->leb_size); in ubifs_wbuf_sync_nolock()
512 ubifs_assert(wbuf->size >= c->min_io_size); in ubifs_wbuf_sync_nolock()
513 ubifs_assert(wbuf->size <= c->max_write_size); in ubifs_wbuf_sync_nolock()
514 ubifs_assert(wbuf->size % c->min_io_size == 0); in ubifs_wbuf_sync_nolock()
516 if (c->leb_size - wbuf->offs >= c->max_write_size) in ubifs_wbuf_sync_nolock()
517 ubifs_assert(!((wbuf->offs + wbuf->size) % c->max_write_size)); in ubifs_wbuf_sync_nolock()
526 sync_len = ALIGN(wbuf->used, c->min_io_size); in ubifs_wbuf_sync_nolock()
527 dirt = sync_len - wbuf->used; in ubifs_wbuf_sync_nolock()
529 ubifs_pad(c, wbuf->buf + wbuf->used, dirt); in ubifs_wbuf_sync_nolock()
530 err = ubifs_leb_write(c, wbuf->lnum, wbuf->buf, wbuf->offs, sync_len); in ubifs_wbuf_sync_nolock()
534 spin_lock(&wbuf->lock); in ubifs_wbuf_sync_nolock()
535 wbuf->offs += sync_len; in ubifs_wbuf_sync_nolock()
546 if (c->leb_size - wbuf->offs < c->max_write_size) in ubifs_wbuf_sync_nolock()
547 wbuf->size = c->leb_size - wbuf->offs; in ubifs_wbuf_sync_nolock()
548 else if (wbuf->offs & (c->max_write_size - 1)) in ubifs_wbuf_sync_nolock()
549 wbuf->size = ALIGN(wbuf->offs, c->max_write_size) - wbuf->offs; in ubifs_wbuf_sync_nolock()
551 wbuf->size = c->max_write_size; in ubifs_wbuf_sync_nolock()
552 wbuf->avail = wbuf->size; in ubifs_wbuf_sync_nolock()
553 wbuf->used = 0; in ubifs_wbuf_sync_nolock()
554 wbuf->next_ino = 0; in ubifs_wbuf_sync_nolock()
555 spin_unlock(&wbuf->lock); in ubifs_wbuf_sync_nolock()
557 if (wbuf->sync_callback) in ubifs_wbuf_sync_nolock()
558 err = wbuf->sync_callback(c, wbuf->lnum, in ubifs_wbuf_sync_nolock()
559 c->leb_size - wbuf->offs, dirt); in ubifs_wbuf_sync_nolock()
573 int ubifs_wbuf_seek_nolock(struct ubifs_wbuf *wbuf, int lnum, int offs) in ubifs_wbuf_seek_nolock() argument
575 const struct ubifs_info *c = wbuf->c; in ubifs_wbuf_seek_nolock()
577 dbg_io("LEB %d:%d, jhead %s", lnum, offs, dbg_jhead(wbuf->jhead)); in ubifs_wbuf_seek_nolock()
581 ubifs_assert(lnum != wbuf->lnum); in ubifs_wbuf_seek_nolock()
582 ubifs_assert(wbuf->used == 0); in ubifs_wbuf_seek_nolock()
584 spin_lock(&wbuf->lock); in ubifs_wbuf_seek_nolock()
585 wbuf->lnum = lnum; in ubifs_wbuf_seek_nolock()
586 wbuf->offs = offs; in ubifs_wbuf_seek_nolock()
587 if (c->leb_size - wbuf->offs < c->max_write_size) in ubifs_wbuf_seek_nolock()
588 wbuf->size = c->leb_size - wbuf->offs; in ubifs_wbuf_seek_nolock()
589 else if (wbuf->offs & (c->max_write_size - 1)) in ubifs_wbuf_seek_nolock()
590 wbuf->size = ALIGN(wbuf->offs, c->max_write_size) - wbuf->offs; in ubifs_wbuf_seek_nolock()
592 wbuf->size = c->max_write_size; in ubifs_wbuf_seek_nolock()
593 wbuf->avail = wbuf->size; in ubifs_wbuf_seek_nolock()
594 wbuf->used = 0; in ubifs_wbuf_seek_nolock()
595 spin_unlock(&wbuf->lock); in ubifs_wbuf_seek_nolock()
625 struct ubifs_wbuf *wbuf = &c->jheads[i].wbuf; in ubifs_bg_wbufs_sync() local
633 if (mutex_is_locked(&wbuf->io_mutex)) in ubifs_bg_wbufs_sync()
636 mutex_lock_nested(&wbuf->io_mutex, wbuf->jhead); in ubifs_bg_wbufs_sync()
637 if (!wbuf->need_sync) { in ubifs_bg_wbufs_sync()
638 mutex_unlock(&wbuf->io_mutex); in ubifs_bg_wbufs_sync()
642 err = ubifs_wbuf_sync_nolock(wbuf); in ubifs_bg_wbufs_sync()
643 mutex_unlock(&wbuf->io_mutex); in ubifs_bg_wbufs_sync()
656 struct ubifs_wbuf *wbuf = &c->jheads[i].wbuf; in ubifs_bg_wbufs_sync() local
658 mutex_lock_nested(&wbuf->io_mutex, wbuf->jhead); in ubifs_bg_wbufs_sync()
659 cancel_wbuf_timer_nolock(wbuf); in ubifs_bg_wbufs_sync()
660 mutex_unlock(&wbuf->io_mutex); in ubifs_bg_wbufs_sync()
681 int ubifs_wbuf_write_nolock(struct ubifs_wbuf *wbuf, void *buf, int len) in ubifs_wbuf_write_nolock() argument
683 struct ubifs_info *c = wbuf->c; in ubifs_wbuf_write_nolock()
688 dbg_jhead(wbuf->jhead), wbuf->lnum, wbuf->offs + wbuf->used); in ubifs_wbuf_write_nolock()
689 ubifs_assert(len > 0 && wbuf->lnum >= 0 && wbuf->lnum < c->leb_cnt); in ubifs_wbuf_write_nolock()
690 ubifs_assert(wbuf->offs >= 0 && wbuf->offs % c->min_io_size == 0); in ubifs_wbuf_write_nolock()
691 ubifs_assert(!(wbuf->offs & 7) && wbuf->offs <= c->leb_size); in ubifs_wbuf_write_nolock()
692 ubifs_assert(wbuf->avail > 0 && wbuf->avail <= wbuf->size); in ubifs_wbuf_write_nolock()
693 ubifs_assert(wbuf->size >= c->min_io_size); in ubifs_wbuf_write_nolock()
694 ubifs_assert(wbuf->size <= c->max_write_size); in ubifs_wbuf_write_nolock()
695 ubifs_assert(wbuf->size % c->min_io_size == 0); in ubifs_wbuf_write_nolock()
696 ubifs_assert(mutex_is_locked(&wbuf->io_mutex)); in ubifs_wbuf_write_nolock()
699 if (c->leb_size - wbuf->offs >= c->max_write_size) in ubifs_wbuf_write_nolock()
700 ubifs_assert(!((wbuf->offs + wbuf->size) % c->max_write_size)); in ubifs_wbuf_write_nolock()
702 if (c->leb_size - wbuf->offs - wbuf->used < aligned_len) { in ubifs_wbuf_write_nolock()
707 cancel_wbuf_timer_nolock(wbuf); in ubifs_wbuf_write_nolock()
712 if (aligned_len <= wbuf->avail) { in ubifs_wbuf_write_nolock()
717 memcpy(wbuf->buf + wbuf->used, buf, len); in ubifs_wbuf_write_nolock()
719 if (aligned_len == wbuf->avail) { in ubifs_wbuf_write_nolock()
721 dbg_jhead(wbuf->jhead), wbuf->lnum, wbuf->offs); in ubifs_wbuf_write_nolock()
722 err = ubifs_leb_write(c, wbuf->lnum, wbuf->buf, in ubifs_wbuf_write_nolock()
723 wbuf->offs, wbuf->size); in ubifs_wbuf_write_nolock()
727 spin_lock(&wbuf->lock); in ubifs_wbuf_write_nolock()
728 wbuf->offs += wbuf->size; in ubifs_wbuf_write_nolock()
729 if (c->leb_size - wbuf->offs >= c->max_write_size) in ubifs_wbuf_write_nolock()
730 wbuf->size = c->max_write_size; in ubifs_wbuf_write_nolock()
732 wbuf->size = c->leb_size - wbuf->offs; in ubifs_wbuf_write_nolock()
733 wbuf->avail = wbuf->size; in ubifs_wbuf_write_nolock()
734 wbuf->used = 0; in ubifs_wbuf_write_nolock()
735 wbuf->next_ino = 0; in ubifs_wbuf_write_nolock()
736 spin_unlock(&wbuf->lock); in ubifs_wbuf_write_nolock()
738 spin_lock(&wbuf->lock); in ubifs_wbuf_write_nolock()
739 wbuf->avail -= aligned_len; in ubifs_wbuf_write_nolock()
740 wbuf->used += aligned_len; in ubifs_wbuf_write_nolock()
741 spin_unlock(&wbuf->lock); in ubifs_wbuf_write_nolock()
749 if (wbuf->used) { in ubifs_wbuf_write_nolock()
756 dbg_jhead(wbuf->jhead), wbuf->lnum, wbuf->offs); in ubifs_wbuf_write_nolock()
757 memcpy(wbuf->buf + wbuf->used, buf, wbuf->avail); in ubifs_wbuf_write_nolock()
758 err = ubifs_leb_write(c, wbuf->lnum, wbuf->buf, wbuf->offs, in ubifs_wbuf_write_nolock()
759 wbuf->size); in ubifs_wbuf_write_nolock()
763 wbuf->offs += wbuf->size; in ubifs_wbuf_write_nolock()
764 len -= wbuf->avail; in ubifs_wbuf_write_nolock()
765 aligned_len -= wbuf->avail; in ubifs_wbuf_write_nolock()
766 written += wbuf->avail; in ubifs_wbuf_write_nolock()
767 } else if (wbuf->offs & (c->max_write_size - 1)) { in ubifs_wbuf_write_nolock()
776 wbuf->size, wbuf->lnum, wbuf->offs); in ubifs_wbuf_write_nolock()
777 err = ubifs_leb_write(c, wbuf->lnum, buf, wbuf->offs, in ubifs_wbuf_write_nolock()
778 wbuf->size); in ubifs_wbuf_write_nolock()
782 wbuf->offs += wbuf->size; in ubifs_wbuf_write_nolock()
783 len -= wbuf->size; in ubifs_wbuf_write_nolock()
784 aligned_len -= wbuf->size; in ubifs_wbuf_write_nolock()
785 written += wbuf->size; in ubifs_wbuf_write_nolock()
797 dbg_io("write %d bytes to LEB %d:%d", n, wbuf->lnum, in ubifs_wbuf_write_nolock()
798 wbuf->offs); in ubifs_wbuf_write_nolock()
799 err = ubifs_leb_write(c, wbuf->lnum, buf + written, in ubifs_wbuf_write_nolock()
800 wbuf->offs, n); in ubifs_wbuf_write_nolock()
803 wbuf->offs += n; in ubifs_wbuf_write_nolock()
809 spin_lock(&wbuf->lock); in ubifs_wbuf_write_nolock()
816 memcpy(wbuf->buf, buf + written, len); in ubifs_wbuf_write_nolock()
818 if (c->leb_size - wbuf->offs >= c->max_write_size) in ubifs_wbuf_write_nolock()
819 wbuf->size = c->max_write_size; in ubifs_wbuf_write_nolock()
821 wbuf->size = c->leb_size - wbuf->offs; in ubifs_wbuf_write_nolock()
822 wbuf->avail = wbuf->size - aligned_len; in ubifs_wbuf_write_nolock()
823 wbuf->used = aligned_len; in ubifs_wbuf_write_nolock()
824 wbuf->next_ino = 0; in ubifs_wbuf_write_nolock()
825 spin_unlock(&wbuf->lock); in ubifs_wbuf_write_nolock()
828 if (wbuf->sync_callback) { in ubifs_wbuf_write_nolock()
829 int free = c->leb_size - wbuf->offs - wbuf->used; in ubifs_wbuf_write_nolock()
831 err = wbuf->sync_callback(c, wbuf->lnum, free, 0); in ubifs_wbuf_write_nolock()
836 if (wbuf->used) in ubifs_wbuf_write_nolock()
837 new_wbuf_timer_nolock(wbuf); in ubifs_wbuf_write_nolock()
843 len, wbuf->lnum, wbuf->offs, err); in ubifs_wbuf_write_nolock()
846 ubifs_dump_leb(c, wbuf->lnum); in ubifs_wbuf_write_nolock()
904 int ubifs_read_node_wbuf(struct ubifs_wbuf *wbuf, void *buf, int type, int len, in ubifs_read_node_wbuf() argument
907 const struct ubifs_info *c = wbuf->c; in ubifs_read_node_wbuf()
912 dbg_ntype(type), len, dbg_jhead(wbuf->jhead)); in ubifs_read_node_wbuf()
913 ubifs_assert(wbuf && lnum >= 0 && lnum < c->leb_cnt && offs >= 0); in ubifs_read_node_wbuf()
917 spin_lock(&wbuf->lock); in ubifs_read_node_wbuf()
918 overlap = (lnum == wbuf->lnum && offs + len > wbuf->offs); in ubifs_read_node_wbuf()
921 spin_unlock(&wbuf->lock); in ubifs_read_node_wbuf()
926 rlen = wbuf->offs - offs; in ubifs_read_node_wbuf()
931 memcpy(buf + rlen, wbuf->buf + offs + rlen - wbuf->offs, len - rlen); in ubifs_read_node_wbuf()
932 spin_unlock(&wbuf->lock); in ubifs_read_node_wbuf()
1035 int ubifs_wbuf_init(struct ubifs_info *c, struct ubifs_wbuf *wbuf) in ubifs_wbuf_init() argument
1039 wbuf->buf = kmalloc(c->max_write_size, GFP_KERNEL); in ubifs_wbuf_init()
1040 if (!wbuf->buf) in ubifs_wbuf_init()
1044 wbuf->inodes = kmalloc(size, GFP_KERNEL); in ubifs_wbuf_init()
1045 if (!wbuf->inodes) { in ubifs_wbuf_init()
1046 kfree(wbuf->buf); in ubifs_wbuf_init()
1047 wbuf->buf = NULL; in ubifs_wbuf_init()
1051 wbuf->used = 0; in ubifs_wbuf_init()
1052 wbuf->lnum = wbuf->offs = -1; in ubifs_wbuf_init()
1060 wbuf->avail = wbuf->size = size; in ubifs_wbuf_init()
1061 wbuf->sync_callback = NULL; in ubifs_wbuf_init()
1062 mutex_init(&wbuf->io_mutex); in ubifs_wbuf_init()
1063 spin_lock_init(&wbuf->lock); in ubifs_wbuf_init()
1064 wbuf->c = c; in ubifs_wbuf_init()
1065 wbuf->next_ino = 0; in ubifs_wbuf_init()
1068 hrtimer_init(&wbuf->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL); in ubifs_wbuf_init()
1069 wbuf->timer.function = wbuf_timer_callback_nolock; in ubifs_wbuf_init()
1070 wbuf->softlimit = ktime_set(WBUF_TIMEOUT_SOFTLIMIT, 0); in ubifs_wbuf_init()
1071 wbuf->delta = WBUF_TIMEOUT_HARDLIMIT - WBUF_TIMEOUT_SOFTLIMIT; in ubifs_wbuf_init()
1072 wbuf->delta *= 1000000000ULL; in ubifs_wbuf_init()
1073 ubifs_assert(wbuf->delta <= ULONG_MAX); in ubifs_wbuf_init()
1085 void ubifs_wbuf_add_ino_nolock(struct ubifs_wbuf *wbuf, ino_t inum) in ubifs_wbuf_add_ino_nolock() argument
1087 if (!wbuf->buf) in ubifs_wbuf_add_ino_nolock()
1091 spin_lock(&wbuf->lock); in ubifs_wbuf_add_ino_nolock()
1092 if (wbuf->used) in ubifs_wbuf_add_ino_nolock()
1093 wbuf->inodes[wbuf->next_ino++] = inum; in ubifs_wbuf_add_ino_nolock()
1094 spin_unlock(&wbuf->lock); in ubifs_wbuf_add_ino_nolock()
1105 static int wbuf_has_ino(struct ubifs_wbuf *wbuf, ino_t inum) in wbuf_has_ino() argument
1109 spin_lock(&wbuf->lock); in wbuf_has_ino()
1110 for (i = 0; i < wbuf->next_ino; i++) in wbuf_has_ino()
1111 if (inum == wbuf->inodes[i]) { in wbuf_has_ino()
1115 spin_unlock(&wbuf->lock); in wbuf_has_ino()
1134 struct ubifs_wbuf *wbuf = &c->jheads[i].wbuf; in ubifs_sync_wbufs_by_inode() local
1145 if (!wbuf_has_ino(wbuf, inode->i_ino)) in ubifs_sync_wbufs_by_inode()
1148 mutex_lock_nested(&wbuf->io_mutex, wbuf->jhead); in ubifs_sync_wbufs_by_inode()
1149 if (wbuf_has_ino(wbuf, inode->i_ino)) in ubifs_sync_wbufs_by_inode()
1150 err = ubifs_wbuf_sync_nolock(wbuf); in ubifs_sync_wbufs_by_inode()
1151 mutex_unlock(&wbuf->io_mutex); in ubifs_sync_wbufs_by_inode()