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; 15f2f7ba52SSteven Whitehouse 16cd915493SSteven Whitehouse #define NO_QUOTA_CHANGE ((u32)-1) 17b3b94faaSDavid Teigland 189ac1b4d9SSteven Whitehouse extern int gfs2_quota_hold(struct gfs2_inode *ip, u32 uid, u32 gid); 199ac1b4d9SSteven Whitehouse extern void gfs2_quota_unhold(struct gfs2_inode *ip); 20b3b94faaSDavid Teigland 219ac1b4d9SSteven Whitehouse extern int gfs2_quota_lock(struct gfs2_inode *ip, u32 uid, u32 gid); 229ac1b4d9SSteven Whitehouse extern void gfs2_quota_unlock(struct gfs2_inode *ip); 23b3b94faaSDavid Teigland 249ac1b4d9SSteven Whitehouse extern int gfs2_quota_check(struct gfs2_inode *ip, u32 uid, u32 gid); 259ac1b4d9SSteven Whitehouse extern void gfs2_quota_change(struct gfs2_inode *ip, s64 change, 26cd915493SSteven Whitehouse u32 uid, u32 gid); 27b3b94faaSDavid Teigland 288c42d637SSteven Whitehouse extern int gfs2_quota_sync(struct super_block *sb, int type); 299ac1b4d9SSteven Whitehouse extern int gfs2_quota_refresh(struct gfs2_sbd *sdp, int user, u32 id); 30b3b94faaSDavid Teigland 319ac1b4d9SSteven Whitehouse extern int gfs2_quota_init(struct gfs2_sbd *sdp); 329ac1b4d9SSteven Whitehouse extern void gfs2_quota_cleanup(struct gfs2_sbd *sdp); 339ac1b4d9SSteven Whitehouse extern int gfs2_quotad(void *data); 34b3b94faaSDavid Teigland 35d82661d9SSteven Whitehouse static inline int gfs2_quota_lock_check(struct gfs2_inode *ip) 36d82661d9SSteven Whitehouse { 37d82661d9SSteven Whitehouse struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode); 38d82661d9SSteven Whitehouse int ret; 39d82661d9SSteven Whitehouse if (sdp->sd_args.ar_quota == GFS2_QUOTA_OFF) 40d82661d9SSteven Whitehouse return 0; 41d82661d9SSteven Whitehouse ret = gfs2_quota_lock(ip, NO_QUOTA_CHANGE, NO_QUOTA_CHANGE); 42d82661d9SSteven Whitehouse if (ret) 43d82661d9SSteven Whitehouse return ret; 44d82661d9SSteven Whitehouse if (sdp->sd_args.ar_quota != GFS2_QUOTA_ON) 45d82661d9SSteven Whitehouse return 0; 46d82661d9SSteven Whitehouse ret = gfs2_quota_check(ip, ip->i_inode.i_uid, ip->i_inode.i_gid); 47d82661d9SSteven Whitehouse if (ret) 48d82661d9SSteven Whitehouse gfs2_quota_unlock(ip); 49d82661d9SSteven Whitehouse return ret; 50d82661d9SSteven Whitehouse } 51d82661d9SSteven Whitehouse 520a7ab79cSAbhijith Das extern int gfs2_shrink_qd_memory(int nr, gfp_t gfp_mask); 53cc632e7fSSteven Whitehouse extern const struct quotactl_ops gfs2_quotactl_ops; 540a7ab79cSAbhijith Das 55b3b94faaSDavid Teigland #endif /* __QUOTA_DOT_H__ */ 56