diff options
Diffstat (limited to 'fs/gfs2/quota.h')
| -rw-r--r-- | fs/gfs2/quota.h | 63 |
1 files changed, 45 insertions, 18 deletions
diff --git a/fs/gfs2/quota.h b/fs/gfs2/quota.h index a8be1417051..55d506eb3c4 100644 --- a/fs/gfs2/quota.h +++ b/fs/gfs2/quota.h @@ -10,26 +10,53 @@ #ifndef __QUOTA_DOT_H__ #define __QUOTA_DOT_H__ +#include <linux/list_lru.h> + struct gfs2_inode; struct gfs2_sbd; -#define NO_QUOTA_CHANGE ((u32)-1) - -int gfs2_quota_hold(struct gfs2_inode *ip, u32 uid, u32 gid); -void gfs2_quota_unhold(struct gfs2_inode *ip); - -int gfs2_quota_lock(struct gfs2_inode *ip, u32 uid, u32 gid); -void gfs2_quota_unlock(struct gfs2_inode *ip); - -int gfs2_quota_check(struct gfs2_inode *ip, u32 uid, u32 gid); -void gfs2_quota_change(struct gfs2_inode *ip, s64 change, - u32 uid, u32 gid); - -int gfs2_quota_sync(struct gfs2_sbd *sdp); -int gfs2_quota_refresh(struct gfs2_sbd *sdp, int user, u32 id); - -int gfs2_quota_init(struct gfs2_sbd *sdp); -void gfs2_quota_scan(struct gfs2_sbd *sdp); -void gfs2_quota_cleanup(struct gfs2_sbd *sdp); +#define NO_UID_QUOTA_CHANGE INVALID_UID +#define NO_GID_QUOTA_CHANGE INVALID_GID + +extern int gfs2_quota_hold(struct gfs2_inode *ip, kuid_t uid, kgid_t gid); +extern void gfs2_quota_unhold(struct gfs2_inode *ip); + +extern int gfs2_quota_lock(struct gfs2_inode *ip, kuid_t uid, kgid_t gid); +extern void gfs2_quota_unlock(struct gfs2_inode *ip); + +extern int gfs2_quota_check(struct gfs2_inode *ip, kuid_t uid, kgid_t gid); +extern void gfs2_quota_change(struct gfs2_inode *ip, s64 change, + kuid_t uid, kgid_t gid); + +extern int gfs2_quota_sync(struct super_block *sb, int type); +extern int gfs2_quota_refresh(struct gfs2_sbd *sdp, struct kqid qid); + +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_UID_QUOTA_CHANGE, NO_GID_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 const struct quotactl_ops gfs2_quotactl_ops; +extern struct shrinker gfs2_qd_shrinker; +extern struct list_lru gfs2_qd_lru; +extern void __init gfs2_quota_hash_init(void); #endif /* __QUOTA_DOT_H__ */ |
