1 files changed, 66 insertions, 0 deletions
diff --git a/fs/gfs2/quota.h b/fs/gfs2/quota.h
new file mode 100644
index 000000000..21ada332d
--- /dev/null
+++ b/fs/gfs2/quota.h
@@ -0,0 +1,66 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
+ * Copyright (C) 2004-2006 Red Hat, Inc.  All rights reserved.
+ */
+
+#ifndef __QUOTA_DOT_H__
+#define __QUOTA_DOT_H__
+
+#include <linux/list_lru.h>
+
+struct gfs2_inode;
+struct gfs2_sbd;
+
+#define NO_UID_QUOTA_CHANGE INVALID_UID
+#define NO_GID_QUOTA_CHANGE INVALID_GID
+
+extern int gfs2_qa_get(struct gfs2_inode *ip);
+extern void gfs2_qa_put(struct gfs2_inode *ip);
+extern int gfs2_quota_hold(struct gfs2_inode *ip, kuid_t uid, kgid_t gid);
+extern void gfs2_quota_unhold(struct gfs2_inode *ip);
+
+extern int gfs2_quota_lock(struct gfs2_inode *ip, kuid_t uid, kgid_t gid);
+extern void gfs2_quota_unlock(struct gfs2_inode *ip);
+
+extern int gfs2_quota_check(struct gfs2_inode *ip, kuid_t uid, kgid_t gid,
+			    struct gfs2_alloc_parms *ap);
+extern void gfs2_quota_change(struct gfs2_inode *ip, s64 change,
+			      kuid_t uid, kgid_t gid);
+
+extern int gfs2_quota_sync(struct super_block *sb, int type);
+extern int gfs2_quota_refresh(struct gfs2_sbd *sdp, struct kqid qid);
+
+extern int gfs2_quota_init(struct gfs2_sbd *sdp);
+extern void gfs2_quota_cleanup(struct gfs2_sbd *sdp);
+extern int gfs2_quotad(void *data);
+
+extern void gfs2_wake_up_statfs(struct gfs2_sbd *sdp);
+
+static inline int gfs2_quota_lock_check(struct gfs2_inode *ip,
+					struct gfs2_alloc_parms *ap)
+{
+	struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
+	int ret;
+
+	ap->allowed = UINT_MAX; /* Assume we are permitted a whole lot */
+	if (capable(CAP_SYS_RESOURCE) ||
+	    sdp->sd_args.ar_quota == GFS2_QUOTA_OFF)
+		return 0;
+	ret = gfs2_quota_lock(ip, NO_UID_QUOTA_CHANGE, NO_GID_QUOTA_CHANGE);
+	if (ret)
+		return ret;
+	if (sdp->sd_args.ar_quota != GFS2_QUOTA_ON)
+		return 0;
+	ret = gfs2_quota_check(ip, ip->i_inode.i_uid, ip->i_inode.i_gid, ap);
+	if (ret)
+		gfs2_quota_unlock(ip);
+	return ret;
+}
+
+extern const struct quotactl_ops gfs2_quotactl_ops;
+extern struct shrinker gfs2_qd_shrinker;
+extern struct list_lru gfs2_qd_lru;
+extern void __init gfs2_quota_hash_init(void);
+
+#endif /* __QUOTA_DOT_H__ */