forked from Minki/linux
cc632e7f93
The plan is to add further operations to the gfs2_quotactl_ops in future patches. The sync operation is easy, so we start with that one. We plan to use the XFS quota control functions because they more closely match the GFS2 ones. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
56 lines
1.7 KiB
C
56 lines
1.7 KiB
C
/*
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* Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
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* Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
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*
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* This copyrighted material is made available to anyone wishing to use,
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* modify, copy, or redistribute it subject to the terms and conditions
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* of the GNU General Public License version 2.
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*/
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#ifndef __QUOTA_DOT_H__
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#define __QUOTA_DOT_H__
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struct gfs2_inode;
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struct gfs2_sbd;
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#define NO_QUOTA_CHANGE ((u32)-1)
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extern int gfs2_quota_hold(struct gfs2_inode *ip, u32 uid, u32 gid);
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extern void gfs2_quota_unhold(struct gfs2_inode *ip);
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extern int gfs2_quota_lock(struct gfs2_inode *ip, u32 uid, u32 gid);
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extern void gfs2_quota_unlock(struct gfs2_inode *ip);
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extern int gfs2_quota_check(struct gfs2_inode *ip, u32 uid, u32 gid);
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extern void gfs2_quota_change(struct gfs2_inode *ip, s64 change,
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u32 uid, u32 gid);
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extern int gfs2_quota_sync(struct super_block *sb, int type);
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extern int gfs2_quota_refresh(struct gfs2_sbd *sdp, int user, u32 id);
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extern int gfs2_quota_init(struct gfs2_sbd *sdp);
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extern void gfs2_quota_cleanup(struct gfs2_sbd *sdp);
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extern int gfs2_quotad(void *data);
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static inline int gfs2_quota_lock_check(struct gfs2_inode *ip)
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{
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struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
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int ret;
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if (sdp->sd_args.ar_quota == GFS2_QUOTA_OFF)
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return 0;
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ret = gfs2_quota_lock(ip, NO_QUOTA_CHANGE, NO_QUOTA_CHANGE);
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if (ret)
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return ret;
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if (sdp->sd_args.ar_quota != GFS2_QUOTA_ON)
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return 0;
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ret = gfs2_quota_check(ip, ip->i_inode.i_uid, ip->i_inode.i_gid);
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if (ret)
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gfs2_quota_unlock(ip);
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return ret;
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}
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extern int gfs2_shrink_qd_memory(int nr, gfp_t gfp_mask);
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extern const struct quotactl_ops gfs2_quotactl_ops;
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#endif /* __QUOTA_DOT_H__ */
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