// SPDX-License-Identifier: GPL-2.0 /* * Copyright (c) 2000-2005 Silicon Graphics, Inc. * All Rights Reserved. */ #ifndef __XFS_QUOTA_H__ #define __XFS_QUOTA_H__ #include "xfs_quota_defs.h" /* * Kernel only quota definitions and functions */ struct xfs_trans; struct xfs_buf; /* * This check is done typically without holding the inode lock; * that may seem racy, but it is harmless in the context that it is used. * The inode cannot go inactive as long a reference is kept, and * therefore if dquot(s) were attached, they'll stay consistent. * If, for example, the ownership of the inode changes while * we didn't have the inode locked, the appropriate dquot(s) will be * attached atomically. */ #define XFS_NOT_DQATTACHED(mp, ip) … #define XFS_QM_NEED_QUOTACHECK(mp) … static inline uint xfs_quota_chkd_flag( xfs_dqtype_t type) { … } /* * The structure kept inside the xfs_trans_t keep track of dquot changes * within a transaction and apply them later. */ struct xfs_dqtrx { … }; enum xfs_apply_dqtrx_type { … }; /* * Parameters for applying dqtrx changes to a dquot. The hook function arg * parameter is enum xfs_apply_dqtrx_type. */ struct xfs_apply_dqtrx_params { … }; #ifdef CONFIG_XFS_QUOTA extern void xfs_trans_dup_dqinfo(struct xfs_trans *, struct xfs_trans *); extern void xfs_trans_free_dqinfo(struct xfs_trans *); extern void xfs_trans_mod_dquot_byino(struct xfs_trans *, struct xfs_inode *, uint, int64_t); extern void xfs_trans_apply_dquot_deltas(struct xfs_trans *); extern void xfs_trans_unreserve_and_mod_dquots(struct xfs_trans *); int xfs_trans_reserve_quota_nblks(struct xfs_trans *tp, struct xfs_inode *ip, int64_t dblocks, int64_t rblocks, bool force); extern int xfs_trans_reserve_quota_bydquots(struct xfs_trans *, struct xfs_mount *, struct xfs_dquot *, struct xfs_dquot *, struct xfs_dquot *, int64_t, long, uint); int xfs_trans_reserve_quota_icreate(struct xfs_trans *tp, struct xfs_dquot *udqp, struct xfs_dquot *gdqp, struct xfs_dquot *pdqp, int64_t dblocks); extern int xfs_qm_vop_dqalloc(struct xfs_inode *, kuid_t, kgid_t, prid_t, uint, struct xfs_dquot **, struct xfs_dquot **, struct xfs_dquot **); extern void xfs_qm_vop_create_dqattach(struct xfs_trans *, struct xfs_inode *, struct xfs_dquot *, struct xfs_dquot *, struct xfs_dquot *); extern int xfs_qm_vop_rename_dqattach(struct xfs_inode **); extern struct xfs_dquot *xfs_qm_vop_chown(struct xfs_trans *, struct xfs_inode *, struct xfs_dquot **, struct xfs_dquot *); extern int xfs_qm_dqattach(struct xfs_inode *); extern int xfs_qm_dqattach_locked(struct xfs_inode *ip, bool doalloc); extern void xfs_qm_dqdetach(struct xfs_inode *); extern void xfs_qm_dqrele(struct xfs_dquot *); extern void xfs_qm_statvfs(struct xfs_inode *, struct kstatfs *); extern int xfs_qm_newmount(struct xfs_mount *, uint *, uint *); extern void xfs_qm_mount_quotas(struct xfs_mount *); extern void xfs_qm_unmount(struct xfs_mount *); extern void xfs_qm_unmount_quotas(struct xfs_mount *); bool xfs_inode_near_dquot_enforcement(struct xfs_inode *ip, xfs_dqtype_t type); # ifdef CONFIG_XFS_LIVE_HOOKS void xfs_trans_mod_ino_dquot(struct xfs_trans *tp, struct xfs_inode *ip, struct xfs_dquot *dqp, unsigned int field, int64_t delta); struct xfs_quotainfo; struct xfs_dqtrx_hook { … }; void xfs_dqtrx_hook_disable(void); void xfs_dqtrx_hook_enable(void); int xfs_dqtrx_hook_add(struct xfs_quotainfo *qi, struct xfs_dqtrx_hook *hook); void xfs_dqtrx_hook_del(struct xfs_quotainfo *qi, struct xfs_dqtrx_hook *hook); void xfs_dqtrx_hook_setup(struct xfs_dqtrx_hook *hook, notifier_fn_t mod_fn, notifier_fn_t apply_fn); # else #define xfs_trans_mod_ino_dquot … # endif /* CONFIG_XFS_LIVE_HOOKS */ #else static inline int xfs_qm_vop_dqalloc(struct xfs_inode *ip, kuid_t kuid, kgid_t kgid, prid_t prid, uint flags, struct xfs_dquot **udqp, struct xfs_dquot **gdqp, struct xfs_dquot **pdqp) { *udqp = NULL; *gdqp = NULL; *pdqp = NULL; return 0; } #define xfs_trans_dup_dqinfo … #define xfs_trans_free_dqinfo … static inline void xfs_trans_mod_dquot_byino(struct xfs_trans *tp, struct xfs_inode *ip, uint field, int64_t delta) { } #define xfs_trans_apply_dquot_deltas … #define xfs_trans_unreserve_and_mod_dquots … static inline int xfs_trans_reserve_quota_nblks(struct xfs_trans *tp, struct xfs_inode *ip, int64_t dblocks, int64_t rblocks, bool force) { return 0; } static inline int xfs_trans_reserve_quota_bydquots(struct xfs_trans *tp, struct xfs_mount *mp, struct xfs_dquot *udqp, struct xfs_dquot *gdqp, struct xfs_dquot *pdqp, int64_t nblks, long nions, uint flags) { return 0; } static inline int xfs_trans_reserve_quota_icreate(struct xfs_trans *tp, struct xfs_dquot *udqp, struct xfs_dquot *gdqp, struct xfs_dquot *pdqp, int64_t dblocks) { return 0; } #define xfs_qm_vop_create_dqattach … #define xfs_qm_vop_rename_dqattach … #define xfs_qm_vop_chown … #define xfs_qm_dqattach … #define xfs_qm_dqattach_locked … #define xfs_qm_dqdetach … #define xfs_qm_dqrele … #define xfs_qm_statvfs … #define xfs_qm_newmount … #define xfs_qm_mount_quotas … #define xfs_qm_unmount … #define xfs_qm_unmount_quotas … #define xfs_inode_near_dquot_enforcement … # ifdef CONFIG_XFS_LIVE_HOOKS #define xfs_dqtrx_hook_enable … #define xfs_dqtrx_hook_disable … # endif /* CONFIG_XFS_LIVE_HOOKS */ #endif /* CONFIG_XFS_QUOTA */ static inline int xfs_quota_reserve_blkres(struct xfs_inode *ip, int64_t blocks) { … } static inline void xfs_quota_unreserve_blkres(struct xfs_inode *ip, uint64_t blocks) { … } extern int xfs_mount_reset_sbqflags(struct xfs_mount *); #endif /* __XFS_QUOTA_H__ */
Codebase Browser
linux