118 	struct logfs_area *area = super->s_area[a->gc_level];  in read_area()  local
127 	area->a_used_bytes = be32_to_cpu(a->used_bytes);  in read_area()
128 	area->a_written_bytes = area->a_used_bytes & writemask;  in read_area()
129 	area->a_segno = be32_to_cpu(a->segno);  in read_area()
130 	if (area->a_segno)  in read_area()
131 		area->a_is_open = 1;  in read_area()
133 	ofs = dev_ofs(sb, area->a_segno, area->a_written_bytes);  in read_area()
135 		return logfs_buf_recover(area, ofs, a + 1, super->s_writesize);  in read_area()
137 		return logfs_buf_recover(area, ofs, NULL, 0);  in read_area()
358 static void journal_get_free_segment(struct logfs_area *area)  in journal_get_free_segment()  argument
360 	struct logfs_super *super = logfs_super(area->a_sb);  in journal_get_free_segment()
364 		if (area->a_segno != super->s_journal_seg[i])  in journal_get_free_segment()
373 		area->a_segno = super->s_journal_seg[i];  in journal_get_free_segment()
374 		area->a_erase_count = ++(super->s_journal_ec[i]);  in journal_get_free_segment()
375 		log_journal("Journal now at %x (ec %x)\n", area->a_segno,  in journal_get_free_segment()
376 				area->a_erase_count);  in journal_get_free_segment()
382 static void journal_get_erase_count(struct logfs_area *area)  in journal_get_erase_count()  argument
388 static int journal_erase_segment(struct logfs_area *area)  in journal_erase_segment()  argument
390 	struct super_block *sb = area->a_sb;  in journal_erase_segment()
398 	err = logfs_erase_segment(sb, area->a_segno, 1);  in journal_erase_segment()
406 	u.sh.segno = cpu_to_be32(area->a_segno);  in journal_erase_segment()
407 	u.sh.ec = cpu_to_be32(area->a_erase_count);  in journal_erase_segment()
414 	ofs = dev_ofs(sb, area->a_segno, 0);  in journal_erase_segment()
415 	area->a_used_bytes = sizeof(u);  in journal_erase_segment()
416 	logfs_buf_write(area, ofs, &u, sizeof(u));  in journal_erase_segment()
553 static void write_wbuf(struct super_block *sb, struct logfs_area *area,  in write_wbuf()  argument
563 	ofs = dev_ofs(sb, area->a_segno,  in write_wbuf()
564 			area->a_used_bytes & ~(super->s_writesize - 1));  in write_wbuf()
578 	struct logfs_area *area = super->s_area[super->s_sum_index];  in logfs_write_area()  local
583 	a->used_bytes = cpu_to_be32(area->a_used_bytes);  in logfs_write_area()
584 	a->segno = cpu_to_be32(area->a_segno);  in logfs_write_area()
586 		write_wbuf(sb, area, a + 1);  in logfs_write_area()
628 static s64 logfs_get_free_bytes(struct logfs_area *area, size_t *bytes,  in logfs_get_free_bytes()  argument
631 	u32 writesize = logfs_super(area->a_sb)->s_writesize;  in logfs_get_free_bytes()
635 	ret = logfs_open_area(area, *bytes);  in logfs_get_free_bytes()
639 	ofs = area->a_used_bytes;  in logfs_get_free_bytes()
640 	area->a_used_bytes += *bytes;  in logfs_get_free_bytes()
643 		area->a_used_bytes = ALIGN(area->a_used_bytes, writesize);  in logfs_get_free_bytes()
644 		*bytes = area->a_used_bytes - ofs;  in logfs_get_free_bytes()
647 	return dev_ofs(area->a_sb, area->a_segno, ofs);  in logfs_get_free_bytes()
654 	struct logfs_area *area = super->s_journal_area;  in logfs_write_je_buf()  local
664 	ofs = logfs_get_free_bytes(area, &len, must_pad);  in logfs_write_je_buf()
667 	logfs_buf_write(area, ofs, super->s_compressed_je, len);  in logfs_write_je_buf()
737 	struct logfs_area *area = super->s_journal_area;  in logfs_write_anchor()  local
797 	logfs_sync_area(area);  in logfs_write_anchor()
798 	BUG_ON(area->a_used_bytes != area->a_written_bytes);  in logfs_write_anchor()
808 	struct logfs_area *area = super->s_journal_area;  in do_logfs_journal_wl_pass()  local
836 	freeseg(sb, area->a_segno);  in do_logfs_journal_wl_pass()
837 	area->a_segno = super->s_journal_seg[0];  in do_logfs_journal_wl_pass()
838 	area->a_is_open = 0;  in do_logfs_journal_wl_pass()
839 	area->a_used_bytes = 0;  in do_logfs_journal_wl_pass()