diff options
Diffstat (limited to 'ANDROID_3.4.5/fs/gfs2/quota.h')
-rw-r--r-- | ANDROID_3.4.5/fs/gfs2/quota.h | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/ANDROID_3.4.5/fs/gfs2/quota.h b/ANDROID_3.4.5/fs/gfs2/quota.h new file mode 100644 index 00000000..90bf1c30 --- /dev/null +++ b/ANDROID_3.4.5/fs/gfs2/quota.h @@ -0,0 +1,59 @@ +/* + * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. + * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved. + * + * This copyrighted material is made available to anyone wishing to use, + * modify, copy, or redistribute it subject to the terms and conditions + * of the GNU General Public License version 2. + */ + +#ifndef __QUOTA_DOT_H__ +#define __QUOTA_DOT_H__ + +struct gfs2_inode; +struct gfs2_sbd; +struct shrink_control; + +#define NO_QUOTA_CHANGE ((u32)-1) + +extern int gfs2_quota_hold(struct gfs2_inode *ip, u32 uid, u32 gid); +extern void gfs2_quota_unhold(struct gfs2_inode *ip); + +extern int gfs2_quota_lock(struct gfs2_inode *ip, u32 uid, u32 gid); +extern void gfs2_quota_unlock(struct gfs2_inode *ip); + +extern int gfs2_quota_check(struct gfs2_inode *ip, u32 uid, u32 gid); +extern void gfs2_quota_change(struct gfs2_inode *ip, s64 change, + u32 uid, u32 gid); + +extern int gfs2_quota_sync(struct super_block *sb, int type, int wait); +extern int gfs2_quota_refresh(struct gfs2_sbd *sdp, int user, u32 id); + +extern int gfs2_quota_init(struct gfs2_sbd *sdp); +extern void gfs2_quota_cleanup(struct gfs2_sbd *sdp); +extern int gfs2_quotad(void *data); + +extern void gfs2_wake_up_statfs(struct gfs2_sbd *sdp); + +static inline int gfs2_quota_lock_check(struct gfs2_inode *ip) +{ + struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode); + int ret; + if (sdp->sd_args.ar_quota == GFS2_QUOTA_OFF) + return 0; + ret = gfs2_quota_lock(ip, NO_QUOTA_CHANGE, NO_QUOTA_CHANGE); + if (ret) + return ret; + if (sdp->sd_args.ar_quota != GFS2_QUOTA_ON) + return 0; + ret = gfs2_quota_check(ip, ip->i_inode.i_uid, ip->i_inode.i_gid); + if (ret) + gfs2_quota_unlock(ip); + return ret; +} + +extern int gfs2_shrink_qd_memory(struct shrinker *shrink, + struct shrink_control *sc); +extern const struct quotactl_ops gfs2_quotactl_ops; + +#endif /* __QUOTA_DOT_H__ */ |