Function report |
Source Code:fs\quota\quota_tree.c |
Create Date:2022-07-28 20:33:25 |
Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
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Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:qtree_read_dquot
Proto:int qtree_read_dquot(struct qtree_mem_dqinfo *info, struct dquot *dquot)
Type:int
Parameter:
Type | Parameter | Name |
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struct qtree_mem_dqinfo * | info | |
struct dquot * | dquot |
609 | sb = superblock this applies to |
612 | ret = 0 |
616 | If Not inodes of quotafiles [type] Then |
617 | quota_error(sb, "Quota invalidated while reading!") |
618 | Return -EIO |
622 | If Not Offset of dquot on disk [dq_lock, stable once set] Then |
624 | If offset <= 0 Then |
625 | If offset < 0 Then quota_error(sb, "Can't read quota structure for id %u", from_kqid( & userns count is 1 for root user, 1 for init_uts_ns,* and 1 for... ?, ID this applies to (uid, gid, projid) )) |
632 | memset( & Diskquota usage [dq_dqb_lock] , 0, sizeof(structmem_dqblk)) |
634 | Go to out |
641 | ret = quota_read(sb, type, ddquot, Size of quota entry in quota file , Offset of dquot on disk [dq_lock, stable once set] ) |
643 | If ret != Size of quota entry in quota file Then |
646 | quota_error(sb, "Error while reading quota structure for id %u", from_kqid( & userns count is 1 for root user, 1 for init_uts_ns,* and 1 for... ?, ID this applies to (uid, gid, projid) )) |
649 | memset( & Diskquota usage [dq_dqb_lock] , 0, sizeof(structmem_dqblk)) |
651 | Go to out |
653 | spin_lock( & Lock protecting dq_dqb changes ) |
654 | disk2mem_dqblk(dquot, ddquot) |
655 | If Not absolute limit on disk blks alloc && Not preferred limit on disk blks && Not absolute limit on allocated inodes && Not preferred inode limit Then Atomically set a bit in memory |
662 | out : |
663 | dqstats_inc(DQST_READS) |
664 | Return ret |
Name | Describe |
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v2_read_dquot |
Source code conversion tool public plug-in interface | X |
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