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authorJan Kara <jack@suse.cz>2016-02-04 14:50:26 +0100
committerJan Kara <jack@suse.cz>2016-02-09 13:05:23 +0100
commit5a9530e498ed25173d426cd93e31a04468d0dc24 (patch)
tree3bd36852663e0e95345b26f556fea1c1ace1dd37 /fs
parent0066373d9f9320f69f24b080ee00d10f14397355 (diff)
downloadop-kernel-dev-5a9530e498ed25173d426cd93e31a04468d0dc24.zip
op-kernel-dev-5a9530e498ed25173d426cd93e31a04468d0dc24.tar.gz
ocfs2: Implement get_next_id()
Implement get_next_id() callback to enable use of Q_GETNEXTQUOTA quotactl for OCFS2. Signed-off-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'fs')
-rw-r--r--fs/ocfs2/ocfs2_trace.h2
-rw-r--r--fs/ocfs2/quota_global.c25
2 files changed, 27 insertions, 0 deletions
diff --git a/fs/ocfs2/ocfs2_trace.h b/fs/ocfs2/ocfs2_trace.h
index 6cb019b..a52a2db 100644
--- a/fs/ocfs2/ocfs2_trace.h
+++ b/fs/ocfs2/ocfs2_trace.h
@@ -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. */
diff --git a/fs/ocfs2/quota_global.c b/fs/ocfs2/quota_global.c
index 9c9dd30..91bc674 100644
--- a/fs/ocfs2/quota_global.c
+++ b/fs/ocfs2/quota_global.c
@@ -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,
};
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