132 int ocfs2_validate_quota_block(struct super_block *sb, struct buffer_head *bh)  in ocfs2_validate_quota_block()  argument
135 		ocfs2_block_dqtrailer(sb->s_blocksize, bh->b_data);  in ocfs2_validate_quota_block()
146 	return ocfs2_validate_meta_ecc(sb, bh->b_data, &dqt->dq_check);  in ocfs2_validate_quota_block()
165 ssize_t ocfs2_quota_read(struct super_block *sb, int type, char *data,  in ocfs2_quota_read()  argument
168 	struct ocfs2_mem_dqinfo *oinfo = sb_dqinfo(sb, type)->dqi_priv;  in ocfs2_quota_read()
171 	int offset = off & (sb->s_blocksize - 1);  in ocfs2_quota_read()
172 	sector_t blk = off >> sb->s_blocksize_bits;  in ocfs2_quota_read()
184 		tocopy = min_t(size_t, (sb->s_blocksize - offset), toread);  in ocfs2_quota_read()
214 ssize_t ocfs2_quota_write(struct super_block *sb, int type,  in ocfs2_quota_write()  argument
217 	struct mem_dqinfo *info = sb_dqinfo(sb, type);  in ocfs2_quota_write()
220 	int offset = off & (sb->s_blocksize - 1);  in ocfs2_quota_write()
221 	sector_t blk = off >> sb->s_blocksize_bits;  in ocfs2_quota_write()
233 	if (len > sb->s_blocksize - OCFS2_QBLK_RESERVED_SPACE - offset) {  in ocfs2_quota_write()
235 		len = sb->s_blocksize - OCFS2_QBLK_RESERVED_SPACE - offset;  in ocfs2_quota_write()
240 				ocfs2_align_bytes_to_blocks(sb, off + len);  in ocfs2_quota_write()
256 	if ((offset || len < sb->s_blocksize - OCFS2_QBLK_RESERVED_SPACE) &&  in ocfs2_quota_write()
261 		bh = sb_getblk(sb, pblock);  in ocfs2_quota_write()
272 		memset(bh->b_data, 0, sb->s_blocksize);  in ocfs2_quota_write()
336 int ocfs2_global_read_info(struct super_block *sb, int type)  in ocfs2_global_read_info()  argument
342 	struct mem_dqinfo *info = sb_dqinfo(sb, type);  in ocfs2_global_read_info()
348 	gqinode = ocfs2_get_system_file_inode(OCFS2_SB(sb), ino[type],  in ocfs2_global_read_info()
356 	oinfo->dqi_gi.dqi_sb = sb;  in ocfs2_global_read_info()
378 	status = sb->s_op->quota_read(sb, type, (char *)&dinfo,  in ocfs2_global_read_info()
397 	oinfo->dqi_gi.dqi_blocksize_bits = sb->s_blocksize_bits;  in ocfs2_global_read_info()
398 	oinfo->dqi_gi.dqi_usable_bs = sb->s_blocksize -  in ocfs2_global_read_info()
415 static int __ocfs2_global_write_info(struct super_block *sb, int type)  in __ocfs2_global_write_info()  argument
417 	struct mem_dqinfo *info = sb_dqinfo(sb, type);  in __ocfs2_global_write_info()
431 	size = sb->s_op->quota_write(sb, type, (char *)&dinfo,  in __ocfs2_global_write_info()
443 int ocfs2_global_write_info(struct super_block *sb, int type)  in ocfs2_global_write_info()  argument
446 	struct ocfs2_mem_dqinfo *info = sb_dqinfo(sb, type)->dqi_priv;  in ocfs2_global_write_info()
451 	err = __ocfs2_global_write_info(sb, type);  in ocfs2_global_write_info()
456 static int ocfs2_global_qinit_alloc(struct super_block *sb, int type)  in ocfs2_global_qinit_alloc()  argument
458 	struct ocfs2_mem_dqinfo *oinfo = sb_dqinfo(sb, type)->dqi_priv;  in ocfs2_global_qinit_alloc()
467 static int ocfs2_calc_global_qinit_credits(struct super_block *sb, int type)  in ocfs2_calc_global_qinit_credits()  argument
471 	return (ocfs2_global_qinit_alloc(sb, type) + 2) *  in ocfs2_calc_global_qinit_credits()
481 	struct super_block *sb = dquot->dq_sb;  in __ocfs2_sync_dquot()  local
483 	struct ocfs2_mem_dqinfo *info = sb_dqinfo(sb, type)->dqi_priv;  in __ocfs2_sync_dquot()
488 	err = sb->s_op->quota_read(sb, type, (char *)&dqblk,  in __ocfs2_sync_dquot()
574 		if (info_dirty(sb_dqinfo(sb, type))) {  in __ocfs2_sync_dquot()
575 			err2 = __ocfs2_global_write_info(sb, type);  in __ocfs2_sync_dquot()
594 	struct super_block *sb = dquot->dq_sb;  in ocfs2_sync_dquot_helper()  local
595 	struct ocfs2_mem_dqinfo *oinfo = sb_dqinfo(sb, type)->dqi_priv;  in ocfs2_sync_dquot_helper()
596 	struct ocfs2_super *osb = OCFS2_SB(sb);  in ocfs2_sync_dquot_helper()
601 				      type, sb->s_id);  in ocfs2_sync_dquot_helper()
614 	mutex_lock(&sb_dqopt(sb)->dqio_mutex);  in ocfs2_sync_dquot_helper()
622 	mutex_unlock(&sb_dqopt(sb)->dqio_mutex);  in ocfs2_sync_dquot_helper()
635 	struct super_block *sb = oinfo->dqi_gqinode->i_sb;  in qsync_work_fn()  local
637 	dquot_scan_active(sb, ocfs2_sync_dquot_helper, oinfo->dqi_type);  in qsync_work_fn()
669 static int ocfs2_calc_qdel_credits(struct super_block *sb, int type)  in ocfs2_calc_qdel_credits()  argument
671 	struct ocfs2_mem_dqinfo *oinfo = sb_dqinfo(sb, type)->dqi_priv;  in ocfs2_calc_qdel_credits()
782 	struct super_block *sb = dquot->dq_sb;  in ocfs2_acquire_dquot()  local
783 	struct ocfs2_super *osb = OCFS2_SB(sb);  in ocfs2_acquire_dquot()
785 	struct ocfs2_mem_dqinfo *info = sb_dqinfo(sb, type)->dqi_priv;  in ocfs2_acquire_dquot()
787 	int need_alloc = ocfs2_global_qinit_alloc(sb, type);  in ocfs2_acquire_dquot()
823 			i_size_read(gqinode) + (need_alloc << sb->s_blocksize_bits),  in ocfs2_acquire_dquot()
830 				   ocfs2_calc_global_qinit_credits(sb, type));  in ocfs2_acquire_dquot()
839 	if (ex && info_dirty(sb_dqinfo(sb, type))) {  in ocfs2_acquire_dquot()
840 		err = __ocfs2_global_write_info(sb, type);  in ocfs2_acquire_dquot()
873 	struct super_block *sb = dquot->dq_sb;  in ocfs2_mark_dquot_dirty()  local
875 	struct ocfs2_mem_dqinfo *oinfo = sb_dqinfo(sb, type)->dqi_priv;  in ocfs2_mark_dquot_dirty()
877 	struct ocfs2_super *osb = OCFS2_SB(sb);  in ocfs2_mark_dquot_dirty()
903 	mutex_lock(&sb_dqopt(sb)->dqio_mutex);  in ocfs2_mark_dquot_dirty()
912 	mutex_unlock(&sb_dqopt(sb)->dqio_mutex);  in ocfs2_mark_dquot_dirty()
923 static int ocfs2_write_info(struct super_block *sb, int type)  in ocfs2_write_info()  argument
927 	struct ocfs2_mem_dqinfo *oinfo = sb_dqinfo(sb, type)->dqi_priv;  in ocfs2_write_info()
932 	handle = ocfs2_start_trans(OCFS2_SB(sb), OCFS2_QINFO_WRITE_CREDITS);  in ocfs2_write_info()
938 	status = dquot_commit_info(sb, type);  in ocfs2_write_info()
939 	ocfs2_commit_trans(OCFS2_SB(sb), handle);  in ocfs2_write_info()
948 static struct dquot *ocfs2_alloc_dquot(struct super_block *sb, int type)  in ocfs2_alloc_dquot()  argument