36 int ext2fs_bg_has_super(ext2_filsys fs, dgrp_t group)  in ext2fs_bg_has_super()  argument
40 	if (ext2fs_has_feature_sparse_super2(fs->super)) {  in ext2fs_bg_has_super()
41 		if (group == fs->super->s_backup_bgs[0] ||  in ext2fs_bg_has_super()
42 		    group == fs->super->s_backup_bgs[1])  in ext2fs_bg_has_super()
46 	if ((group <= 1) || !ext2fs_has_feature_sparse_super(fs->super))  in ext2fs_bg_has_super()
59  * @fs:			ext2 fs pointer
71 errcode_t ext2fs_super_and_bgd_loc2(ext2_filsys fs,  in ext2fs_super_and_bgd_loc2()  argument
84 	group_block = ext2fs_group_first_block2(fs, group);  in ext2fs_super_and_bgd_loc2()
85 	if (group_block == 0 && fs->blocksize == 1024)  in ext2fs_super_and_bgd_loc2()
88 	if (ext2fs_has_feature_meta_bg(fs->super))  in ext2fs_super_and_bgd_loc2()
89 		old_desc_blocks = fs->super->s_first_meta_bg;  in ext2fs_super_and_bgd_loc2()
92 			fs->desc_blocks + fs->super->s_reserved_gdt_blocks;  in ext2fs_super_and_bgd_loc2()
94 	has_super = ext2fs_bg_has_super(fs, group);  in ext2fs_super_and_bgd_loc2()
100 	meta_bg_size = EXT2_DESC_PER_BLOCK(fs->super);  in ext2fs_super_and_bgd_loc2()
103 	if (!ext2fs_has_feature_meta_bg(fs->super) ||  in ext2fs_super_and_bgd_loc2()
104 	    (meta_bg < fs->super->s_first_meta_bg)) {  in ext2fs_super_and_bgd_loc2()
145 int ext2fs_super_and_bgd_loc(ext2_filsys fs,  in ext2fs_super_and_bgd_loc()  argument
159 	ext2fs_super_and_bgd_loc2(fs, group, &ret_super_blk2,  in ext2fs_super_and_bgd_loc()
164 	numblocks = ext2fs_group_blocks_count(fs, group);  in ext2fs_super_and_bgd_loc()
173 		meta_bg_size = EXT2_DESC_PER_BLOCK(fs->super);  in ext2fs_super_and_bgd_loc()
177 	numblocks -= 2 + fs->inode_blocks_per_group + ret_used_blks;  in ext2fs_super_and_bgd_loc()
192 static errcode_t write_primary_superblock(ext2_filsys fs,  in write_primary_superblock()  argument
199 	if (!fs->io->manager->write_byte || !fs->orig_super) {  in write_primary_superblock()
201 		io_channel_set_blksize(fs->io, SUPERBLOCK_OFFSET);  in write_primary_superblock()
202 		retval = io_channel_write_blk64(fs->io, 1, -SUPERBLOCK_SIZE,  in write_primary_superblock()
204 		io_channel_set_blksize(fs->io, fs->blocksize);  in write_primary_superblock()
208 	old_super = (__u16 *) fs->orig_super;  in write_primary_superblock()
223 		retval = io_channel_write_byte(fs->io,  in write_primary_superblock()
231 	memcpy(fs->orig_super, super, SUPERBLOCK_SIZE);  in write_primary_superblock()
239 void ext2fs_update_dynamic_rev(ext2_filsys fs)  in ext2fs_update_dynamic_rev()  argument
241 	struct ext2_super_block *sb = fs->super;  in ext2fs_update_dynamic_rev()
253 static errcode_t write_backup_super(ext2_filsys fs, dgrp_t group,  in write_backup_super()  argument
265 	retval = ext2fs_superblock_csum_set(fs, super_shadow);  in write_backup_super()
269 	return io_channel_write_blk64(fs->io, group_block, -SUPERBLOCK_SIZE,  in write_backup_super()
273 errcode_t ext2fs_flush(ext2_filsys fs)  in ext2fs_flush()  argument
275 	return ext2fs_flush2(fs, 0);  in ext2fs_flush()
278 errcode_t ext2fs_flush2(ext2_filsys fs, int flags)  in ext2fs_flush2()  argument
294 	EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);  in ext2fs_flush2()
296 	if ((fs->flags & EXT2_FLAG_SUPER_ONLY) == 0 &&  in ext2fs_flush2()
297 	    !ext2fs_has_feature_journal_dev(fs->super) &&  in ext2fs_flush2()
298 	    fs->group_desc == NULL)  in ext2fs_flush2()
301 	fs_state = fs->super->s_state;  in ext2fs_flush2()
302 	feature_incompat = fs->super->s_feature_incompat;  in ext2fs_flush2()
304 	fs->super->s_wtime = fs->now ? fs->now : time(NULL);  in ext2fs_flush2()
305 	fs->super->s_block_group_nr = 0;  in ext2fs_flush2()
316 	if (fs->write_bitmaps) {  in ext2fs_flush2()
317 		retval = fs->write_bitmaps(fs);  in ext2fs_flush2()
323 	 * Set the state of the FS to be non-valid.  (The state has  in ext2fs_flush2()
327 	fs->super->s_state &= ~EXT2_VALID_FS;  in ext2fs_flush2()
328 	ext2fs_clear_feature_journal_needs_recovery(fs->super);  in ext2fs_flush2()
336 	memcpy(super_shadow, fs->super, sizeof(struct ext2_super_block));  in ext2fs_flush2()
339 	if (((fs->flags & EXT2_FLAG_SUPER_ONLY) == 0) &&  in ext2fs_flush2()
340 	    !ext2fs_has_feature_journal_dev(fs->super)) {  in ext2fs_flush2()
341 		retval = ext2fs_get_array(fs->desc_blocks, fs->blocksize,  in ext2fs_flush2()
345 		memcpy(group_shadow, fs->group_desc, (size_t) fs->blocksize *  in ext2fs_flush2()
346 		       fs->desc_blocks);  in ext2fs_flush2()
348 		for (j = 0; j < fs->group_desc_count; j++) {  in ext2fs_flush2()
349 			gdp = ext2fs_group_desc(fs, group_shadow, j);  in ext2fs_flush2()
350 			ext2fs_swap_group_desc2(fs, gdp);  in ext2fs_flush2()
354 	super_shadow = fs->super;  in ext2fs_flush2()
355 	group_shadow = fs->group_desc;  in ext2fs_flush2()
362 	if (ext2fs_has_feature_journal_dev(fs->super))  in ext2fs_flush2()
370 	if (ext2fs_has_feature_meta_bg(fs->super)) {  in ext2fs_flush2()
371 		old_desc_blocks = fs->super->s_first_meta_bg;  in ext2fs_flush2()
372 		if (old_desc_blocks > fs->desc_blocks)  in ext2fs_flush2()
373 			old_desc_blocks = fs->desc_blocks;  in ext2fs_flush2()
375 		old_desc_blocks = fs->desc_blocks;  in ext2fs_flush2()
377 	if (fs->progress_ops && fs->progress_ops->init)  in ext2fs_flush2()
378 		(fs->progress_ops->init)(fs, &progress, NULL,  in ext2fs_flush2()
379 					 fs->group_desc_count);  in ext2fs_flush2()
382 	for (i = 0; i < fs->group_desc_count; i++) {  in ext2fs_flush2()
385 		if (fs->progress_ops && fs->progress_ops->update)  in ext2fs_flush2()
386 			(fs->progress_ops->update)(fs, &progress, i);  in ext2fs_flush2()
387 		ext2fs_super_and_bgd_loc2(fs, i, &super_blk, &old_desc_blk,  in ext2fs_flush2()
390 		if (!(fs->flags & EXT2_FLAG_MASTER_SB_ONLY) &&i && super_blk) {  in ext2fs_flush2()
391 			retval = write_backup_super(fs, i, super_blk,  in ext2fs_flush2()
396 		if (fs->flags & EXT2_FLAG_SUPER_ONLY)  in ext2fs_flush2()
399 		    (!(fs->flags & EXT2_FLAG_MASTER_SB_ONLY) || (i == 0))) {  in ext2fs_flush2()
400 			retval = io_channel_write_blk64(fs->io,  in ext2fs_flush2()
406 			int meta_bg = i / EXT2_DESC_PER_BLOCK(fs->super);  in ext2fs_flush2()
408 			retval = io_channel_write_blk64(fs->io, new_desc_blk,  in ext2fs_flush2()
409 				1, group_ptr + (meta_bg*fs->blocksize));  in ext2fs_flush2()
415 	if (fs->progress_ops && fs->progress_ops->close)  in ext2fs_flush2()
416 		(fs->progress_ops->close)(fs, &progress, NULL);  in ext2fs_flush2()
427 	fs->super->s_block_group_nr = 0;  in ext2fs_flush2()
428 	fs->super->s_state = fs_state;  in ext2fs_flush2()
429 	fs->super->s_feature_incompat = feature_incompat;  in ext2fs_flush2()
431 	*super_shadow = *fs->super;  in ext2fs_flush2()
435 	retval = ext2fs_superblock_csum_set(fs, super_shadow);  in ext2fs_flush2()
440 		retval = io_channel_flush(fs->io);  in ext2fs_flush2()
444 	retval = write_primary_superblock(fs, super_shadow);  in ext2fs_flush2()
448 	fs->flags &= ~EXT2_FLAG_DIRTY;  in ext2fs_flush2()
451 		retval = io_channel_flush(fs->io);  in ext2fs_flush2()
456 	fs->super->s_state = fs_state;  in ext2fs_flush2()
469 	ext2_filsys fs = *fs_ptr;  in ext2fs_close_free()  local
471 	ret = ext2fs_close2(fs, 0);  in ext2fs_close_free()
473 		ext2fs_free(fs);  in ext2fs_close_free()
478 errcode_t ext2fs_close(ext2_filsys fs)  in ext2fs_close()  argument
480 	return ext2fs_close2(fs, 0);  in ext2fs_close()
483 errcode_t ext2fs_close2(ext2_filsys fs, int flags)  in ext2fs_close2()  argument
489 	EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);  in ext2fs_close2()
491 	if (fs->write_bitmaps) {  in ext2fs_close2()
492 		retval = fs->write_bitmaps(fs);  in ext2fs_close2()
496 	if (fs->super->s_kbytes_written &&  in ext2fs_close2()
497 	    fs->io->manager->get_stats)  in ext2fs_close2()
498 		fs->io->manager->get_stats(fs->io, &stats);  in ext2fs_close2()
499 	if (stats && stats->bytes_written && (fs->flags & EXT2_FLAG_RW)) {  in ext2fs_close2()
500 		fs->super->s_kbytes_written += stats->bytes_written >> 10;  in ext2fs_close2()
501 		meta_blks = fs->desc_blocks + 1;  in ext2fs_close2()
502 		if (!(fs->flags & EXT2_FLAG_SUPER_ONLY))  in ext2fs_close2()
503 			fs->super->s_kbytes_written += meta_blks /  in ext2fs_close2()
504 				(fs->blocksize / 1024);  in ext2fs_close2()
505 		if ((fs->flags & EXT2_FLAG_DIRTY) == 0)  in ext2fs_close2()
506 			fs->flags |= EXT2_FLAG_SUPER_ONLY | EXT2_FLAG_DIRTY;  in ext2fs_close2()
508 	if (fs->flags & EXT2_FLAG_DIRTY) {  in ext2fs_close2()
509 		retval = ext2fs_flush2(fs, flags);  in ext2fs_close2()
514 	retval = ext2fs_mmp_stop(fs);  in ext2fs_close2()
518 	ext2fs_free(fs);  in ext2fs_close2()