1b3b94faaSDavid Teigland /* 2b3b94faaSDavid Teigland * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. 33a8a9a10SSteven Whitehouse * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved. 4b3b94faaSDavid Teigland * 5b3b94faaSDavid Teigland * This copyrighted material is made available to anyone wishing to use, 6b3b94faaSDavid Teigland * modify, copy, or redistribute it subject to the terms and conditions 7e9fc2aa0SSteven Whitehouse * of the GNU General Public License version 2. 8b3b94faaSDavid Teigland */ 9b3b94faaSDavid Teigland 10b3b94faaSDavid Teigland #ifndef __QUOTA_DOT_H__ 11b3b94faaSDavid Teigland #define __QUOTA_DOT_H__ 12b3b94faaSDavid Teigland 13f2f7ba52SSteven Whitehouse struct gfs2_inode; 14f2f7ba52SSteven Whitehouse struct gfs2_sbd; 151495f230SYing Han struct shrink_control; 16f2f7ba52SSteven Whitehouse 17f4108a60SEric W. Biederman #define NO_UID_QUOTA_CHANGE INVALID_UID 18f4108a60SEric W. Biederman #define NO_GID_QUOTA_CHANGE INVALID_GID 19b3b94faaSDavid Teigland 209ac1b4d9SSteven Whitehouse extern int gfs2_quota_hold(struct gfs2_inode *ip, u32 uid, u32 gid); 219ac1b4d9SSteven Whitehouse extern void gfs2_quota_unhold(struct gfs2_inode *ip); 22b3b94faaSDavid Teigland 239ac1b4d9SSteven Whitehouse extern int gfs2_quota_lock(struct gfs2_inode *ip, u32 uid, u32 gid); 249ac1b4d9SSteven Whitehouse extern void gfs2_quota_unlock(struct gfs2_inode *ip); 25b3b94faaSDavid Teigland 269ac1b4d9SSteven Whitehouse extern int gfs2_quota_check(struct gfs2_inode *ip, u32 uid, u32 gid); 279ac1b4d9SSteven Whitehouse extern void gfs2_quota_change(struct gfs2_inode *ip, s64 change, 28cd915493SSteven Whitehouse u32 uid, u32 gid); 29b3b94faaSDavid Teigland 30ceed1723SJan Kara extern int gfs2_quota_sync(struct super_block *sb, int type); 319ac1b4d9SSteven Whitehouse extern int gfs2_quota_refresh(struct gfs2_sbd *sdp, int user, u32 id); 32b3b94faaSDavid Teigland 339ac1b4d9SSteven Whitehouse extern int gfs2_quota_init(struct gfs2_sbd *sdp); 349ac1b4d9SSteven Whitehouse extern void gfs2_quota_cleanup(struct gfs2_sbd *sdp); 359ac1b4d9SSteven Whitehouse extern int gfs2_quotad(void *data); 36b3b94faaSDavid Teigland 373d3c10f2SBenjamin Marzinski extern void gfs2_wake_up_statfs(struct gfs2_sbd *sdp); 383d3c10f2SBenjamin Marzinski 39d82661d9SSteven Whitehouse static inline int gfs2_quota_lock_check(struct gfs2_inode *ip) 40d82661d9SSteven Whitehouse { 41d82661d9SSteven Whitehouse struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode); 42d82661d9SSteven Whitehouse int ret; 43d82661d9SSteven Whitehouse if (sdp->sd_args.ar_quota == GFS2_QUOTA_OFF) 44d82661d9SSteven Whitehouse return 0; 45f4108a60SEric W. Biederman ret = gfs2_quota_lock(ip, NO_UID_QUOTA_CHANGE, NO_GID_QUOTA_CHANGE); 46d82661d9SSteven Whitehouse if (ret) 47d82661d9SSteven Whitehouse return ret; 48d82661d9SSteven Whitehouse if (sdp->sd_args.ar_quota != GFS2_QUOTA_ON) 49d82661d9SSteven Whitehouse return 0; 50d82661d9SSteven Whitehouse ret = gfs2_quota_check(ip, ip->i_inode.i_uid, ip->i_inode.i_gid); 51d82661d9SSteven Whitehouse if (ret) 52d82661d9SSteven Whitehouse gfs2_quota_unlock(ip); 53d82661d9SSteven Whitehouse return ret; 54d82661d9SSteven Whitehouse } 55d82661d9SSteven Whitehouse 561495f230SYing Han extern int gfs2_shrink_qd_memory(struct shrinker *shrink, 571495f230SYing Han struct shrink_control *sc); 58cc632e7fSSteven Whitehouse extern const struct quotactl_ops gfs2_quotactl_ops; 590a7ab79cSAbhijith Das 60b3b94faaSDavid Teigland #endif /* __QUOTA_DOT_H__ */ 61