From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- fs/gfs2/quota.h | 66 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 66 insertions(+) create mode 100644 fs/gfs2/quota.h (limited to 'fs/gfs2/quota.h') 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 + +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__ */ -- cgit v1.2.3