^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /* SPDX-License-Identifier: GPL-2.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * quota.h for OCFS2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * On disk quota structures for local and global quota file, in-memory
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * structures.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #ifndef _OCFS2_QUOTA_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #define _OCFS2_QUOTA_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/quota.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/list.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/dqblk_qtree.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include "ocfs2.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) /* Number of quota types we support */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #define OCFS2_MAXQUOTAS 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) * In-memory structures
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) struct ocfs2_dquot {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) struct dquot dq_dquot; /* Generic VFS dquot */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) loff_t dq_local_off; /* Offset in the local quota file */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) u64 dq_local_phys_blk; /* Physical block carrying quota structure */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) struct ocfs2_quota_chunk *dq_chunk; /* Chunk dquot is in */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) unsigned int dq_use_count; /* Number of nodes having reference to this entry in global quota file */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) s64 dq_origspace; /* Last globally synced space usage */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) s64 dq_originodes; /* Last globally synced inode usage */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) struct llist_node list; /* Member of list of dquots to drop */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) /* Description of one chunk to recover in memory */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) struct ocfs2_recovery_chunk {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) struct list_head rc_list; /* List of chunks */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) int rc_chunk; /* Chunk number */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) unsigned long *rc_bitmap; /* Bitmap of entries to recover */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) struct ocfs2_quota_recovery {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) struct list_head r_list[OCFS2_MAXQUOTAS]; /* List of chunks to recover */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) /* In-memory structure with quota header information */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) struct ocfs2_mem_dqinfo {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) unsigned int dqi_type; /* Quota type this structure describes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) unsigned int dqi_flags; /* Flags OLQF_* */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) unsigned int dqi_chunks; /* Number of chunks in local quota file */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) unsigned int dqi_blocks; /* Number of blocks allocated for local quota file */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) unsigned int dqi_syncms; /* How often should we sync with other nodes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) struct list_head dqi_chunk; /* List of chunks */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) struct inode *dqi_gqinode; /* Global quota file inode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) struct ocfs2_lock_res dqi_gqlock; /* Lock protecting quota information structure */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) struct buffer_head *dqi_gqi_bh; /* Buffer head with global quota file inode - set only if inode lock is obtained */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) int dqi_gqi_count; /* Number of holders of dqi_gqi_bh */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) u64 dqi_giblk; /* Number of block with global information header */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) struct buffer_head *dqi_lqi_bh; /* Buffer head with local quota file inode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) struct buffer_head *dqi_libh; /* Buffer with local information header */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) struct qtree_mem_dqinfo dqi_gi; /* Info about global file */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) struct delayed_work dqi_sync_work; /* Work for syncing dquots */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) struct ocfs2_quota_recovery *dqi_rec; /* Pointer to recovery
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) * information, in case we
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) * enable quotas on file
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) * needing it */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) static inline struct ocfs2_dquot *OCFS2_DQUOT(struct dquot *dquot)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) return container_of(dquot, struct ocfs2_dquot, dq_dquot);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) struct ocfs2_quota_chunk {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) struct list_head qc_chunk; /* List of quotafile chunks */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) int qc_num; /* Number of quota chunk */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) struct buffer_head *qc_headerbh; /* Buffer head with chunk header */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) extern struct kmem_cache *ocfs2_dquot_cachep;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) extern struct kmem_cache *ocfs2_qf_chunk_cachep;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) extern const struct qtree_fmt_operations ocfs2_global_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) struct ocfs2_quota_recovery *ocfs2_begin_quota_recovery(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) struct ocfs2_super *osb, int slot_num);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) int ocfs2_finish_quota_recovery(struct ocfs2_super *osb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) struct ocfs2_quota_recovery *rec,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) int slot_num);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) void ocfs2_free_quota_recovery(struct ocfs2_quota_recovery *rec);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) ssize_t ocfs2_quota_read(struct super_block *sb, int type, char *data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) size_t len, loff_t off);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) ssize_t ocfs2_quota_write(struct super_block *sb, int type,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) const char *data, size_t len, loff_t off);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) int ocfs2_global_read_info(struct super_block *sb, int type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) int ocfs2_global_write_info(struct super_block *sb, int type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) int ocfs2_global_read_dquot(struct dquot *dquot);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) int __ocfs2_sync_dquot(struct dquot *dquot, int freeing);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) static inline int ocfs2_sync_dquot(struct dquot *dquot)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) return __ocfs2_sync_dquot(dquot, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) static inline int ocfs2_global_release_dquot(struct dquot *dquot)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) return __ocfs2_sync_dquot(dquot, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) int ocfs2_lock_global_qf(struct ocfs2_mem_dqinfo *oinfo, int ex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) void ocfs2_unlock_global_qf(struct ocfs2_mem_dqinfo *oinfo, int ex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) int ocfs2_validate_quota_block(struct super_block *sb, struct buffer_head *bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) int ocfs2_read_quota_phys_block(struct inode *inode, u64 p_block,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) struct buffer_head **bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) int ocfs2_create_local_dquot(struct dquot *dquot);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) int ocfs2_local_release_dquot(handle_t *handle, struct dquot *dquot);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) int ocfs2_local_write_dquot(struct dquot *dquot);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) void ocfs2_drop_dquot_refs(struct work_struct *work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) extern const struct dquot_operations ocfs2_quota_operations;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) extern struct quota_format_type ocfs2_quota_format;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) #endif /* _OCFS2_QUOTA_H */
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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