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37b2c8377c
This patch is a clean up of gfs2_quotad prior to giving it an extra job to do in addition to the current portfolio of updating the quota and statfs information from time to time. As a result it has been moved into quota.c allowing one of the functions it calls to be made static. Also the clean up allows the two existing functions to have separate timeouts and also to coexist with its future role of dealing with the "truncate in progress" inode flag. The (pointless) setting of gfs2_quotad_secs is removed since we arrange to only wake up quotad when one of the two timers expires. In addition the struct gfs2_quota_data is moved into a slab cache, mainly for easier debugging. It should also be possible to use a shrinker in the future, rather than the current scheme of scanning the quota data entries from time to time. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
51 lines
1.5 KiB
C
51 lines
1.5 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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int gfs2_quota_hold(struct gfs2_inode *ip, u32 uid, u32 gid);
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void gfs2_quota_unhold(struct gfs2_inode *ip);
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int gfs2_quota_lock(struct gfs2_inode *ip, u32 uid, u32 gid);
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void gfs2_quota_unlock(struct gfs2_inode *ip);
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int gfs2_quota_check(struct gfs2_inode *ip, u32 uid, u32 gid);
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void gfs2_quota_change(struct gfs2_inode *ip, s64 change,
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u32 uid, u32 gid);
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int gfs2_quota_sync(struct gfs2_sbd *sdp);
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int gfs2_quota_refresh(struct gfs2_sbd *sdp, int user, u32 id);
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int gfs2_quota_init(struct gfs2_sbd *sdp);
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void gfs2_quota_cleanup(struct gfs2_sbd *sdp);
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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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#endif /* __QUOTA_DOT_H__ */
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