17336d0e6SThomas Gleixner /* SPDX-License-Identifier: GPL-2.0-only */ 2b3b94faaSDavid Teigland /* 3b3b94faaSDavid Teigland * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. 43a8a9a10SSteven Whitehouse * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved. 5b3b94faaSDavid Teigland */ 6b3b94faaSDavid Teigland 7b3b94faaSDavid Teigland #ifndef __QUOTA_DOT_H__ 8b3b94faaSDavid Teigland #define __QUOTA_DOT_H__ 9b3b94faaSDavid Teigland 102147dbfdSSteven Whitehouse #include <linux/list_lru.h> 112147dbfdSSteven Whitehouse 12f2f7ba52SSteven Whitehouse struct gfs2_inode; 13f2f7ba52SSteven Whitehouse struct gfs2_sbd; 14f2f7ba52SSteven Whitehouse 15f4108a60SEric W. Biederman #define NO_UID_QUOTA_CHANGE INVALID_UID 16f4108a60SEric W. Biederman #define NO_GID_QUOTA_CHANGE INVALID_GID 17b3b94faaSDavid Teigland 18b54e9a0bSBob Peterson extern int gfs2_qa_alloc(struct gfs2_inode *ip); 19a097dc7eSBob Peterson extern void gfs2_qa_delete(struct gfs2_inode *ip, atomic_t *wcount); 207c06b5d6SEric W. Biederman extern int gfs2_quota_hold(struct gfs2_inode *ip, kuid_t uid, kgid_t gid); 219ac1b4d9SSteven Whitehouse extern void gfs2_quota_unhold(struct gfs2_inode *ip); 22b3b94faaSDavid Teigland 237c06b5d6SEric W. Biederman extern int gfs2_quota_lock(struct gfs2_inode *ip, kuid_t uid, kgid_t gid); 249ac1b4d9SSteven Whitehouse extern void gfs2_quota_unlock(struct gfs2_inode *ip); 25b3b94faaSDavid Teigland 26b8fbf471SAbhi Das extern int gfs2_quota_check(struct gfs2_inode *ip, kuid_t uid, kgid_t gid, 27b8fbf471SAbhi Das struct gfs2_alloc_parms *ap); 289ac1b4d9SSteven Whitehouse extern void gfs2_quota_change(struct gfs2_inode *ip, s64 change, 297c06b5d6SEric W. Biederman kuid_t uid, kgid_t gid); 30b3b94faaSDavid Teigland 31ceed1723SJan Kara extern int gfs2_quota_sync(struct super_block *sb, int type); 32ed87dabcSEric W. Biederman extern int gfs2_quota_refresh(struct gfs2_sbd *sdp, struct kqid qid); 33b3b94faaSDavid Teigland 349ac1b4d9SSteven Whitehouse extern int gfs2_quota_init(struct gfs2_sbd *sdp); 359ac1b4d9SSteven Whitehouse extern void gfs2_quota_cleanup(struct gfs2_sbd *sdp); 369ac1b4d9SSteven Whitehouse extern int gfs2_quotad(void *data); 37b3b94faaSDavid Teigland 383d3c10f2SBenjamin Marzinski extern void gfs2_wake_up_statfs(struct gfs2_sbd *sdp); 393d3c10f2SBenjamin Marzinski 40b8fbf471SAbhi Das static inline int gfs2_quota_lock_check(struct gfs2_inode *ip, 41b8fbf471SAbhi Das struct gfs2_alloc_parms *ap) 42d82661d9SSteven Whitehouse { 43d82661d9SSteven Whitehouse struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode); 44d82661d9SSteven Whitehouse int ret; 45174d1232SAndreas Gruenbacher 46174d1232SAndreas Gruenbacher ap->allowed = UINT_MAX; /* Assume we are permitted a whole lot */ 47d82661d9SSteven Whitehouse if (sdp->sd_args.ar_quota == GFS2_QUOTA_OFF) 48d82661d9SSteven Whitehouse return 0; 49f4108a60SEric W. Biederman ret = gfs2_quota_lock(ip, NO_UID_QUOTA_CHANGE, NO_GID_QUOTA_CHANGE); 50d82661d9SSteven Whitehouse if (ret) 51d82661d9SSteven Whitehouse return ret; 52d82661d9SSteven Whitehouse if (sdp->sd_args.ar_quota != GFS2_QUOTA_ON) 53d82661d9SSteven Whitehouse return 0; 54b8fbf471SAbhi Das ret = gfs2_quota_check(ip, ip->i_inode.i_uid, ip->i_inode.i_gid, ap); 55d82661d9SSteven Whitehouse if (ret) 56d82661d9SSteven Whitehouse gfs2_quota_unlock(ip); 57d82661d9SSteven Whitehouse return ret; 58d82661d9SSteven Whitehouse } 59d82661d9SSteven Whitehouse 60cc632e7fSSteven Whitehouse extern const struct quotactl_ops gfs2_quotactl_ops; 612147dbfdSSteven Whitehouse extern struct shrinker gfs2_qd_shrinker; 622147dbfdSSteven Whitehouse extern struct list_lru gfs2_qd_lru; 63c754fbbbSSteven Whitehouse extern void __init gfs2_quota_hash_init(void); 640a7ab79cSAbhijith Das 65b3b94faaSDavid Teigland #endif /* __QUOTA_DOT_H__ */ 66