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ocfs2: Implement get_next_id()

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Implement get_next_id() callback to enable use of Q_GETNEXTQUOTA
quotactl for OCFS2.

Signed-off-by: Jan Kara <jack@suse.cz>
This commit is contained in:
Jan Kara 2016-02-04 14:50:26 +01:00
parent 0066373d9f
commit 5a9530e498
2 changed files with 27 additions and 0 deletions
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2
fs/ocfs2/ocfs2_trace.h
View file

@ -2035,6 +2035,8 @@ DEFINE_OCFS2_UINT_INT_EVENT(ocfs2_release_dquot);
DEFINE_OCFS2_UINT_INT_EVENT(ocfs2_acquire_dquot);
DEFINE_OCFS2_UINT_INT_EVENT(ocfs2_get_next_id);
DEFINE_OCFS2_UINT_INT_EVENT(ocfs2_mark_dquot_dirty);
/* End of trace events for fs/ocfs2/quota_global.c. */

25
fs/ocfs2/quota_global.c
View file

@ -860,6 +860,30 @@ out:
return status;
}
static int ocfs2_get_next_id(struct super_block *sb, struct kqid *qid)
{
int type = qid->type;
struct ocfs2_mem_dqinfo *info = sb_dqinfo(sb, type)->dqi_priv;
int status = 0;
trace_ocfs2_get_next_id(from_kqid(&init_user_ns, *qid), type);
status = ocfs2_lock_global_qf(info, 0);
if (status < 0)
goto out;
status = ocfs2_qinfo_lock(info, 0);
if (status < 0)
goto out_global;
status = qtree_get_next_id(&info->dqi_gi, qid);
ocfs2_qinfo_unlock(info, 0);
out_global:
ocfs2_unlock_global_qf(info, 0);
out:
/* Avoid logging ENOENT since it just means there isn't next ID */
if (status && status != -ENOENT)
mlog_errno(status);
return status;
}
static int ocfs2_mark_dquot_dirty(struct dquot *dquot)
{
unsigned long mask = (1 << (DQ_LASTSET_B + QIF_ILIMITS_B)) |
@ -968,4 +992,5 @@ const struct dquot_operations ocfs2_quota_operations = {
.write_info = ocfs2_write_info,
.alloc_dquot = ocfs2_alloc_dquot,
.destroy_dquot = ocfs2_destroy_dquot,
.get_next_id = ocfs2_get_next_id,
};