^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) * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * All Rights Reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) #ifndef __XFS_INODE_H__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) #define __XFS_INODE_H__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include "xfs_inode_buf.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include "xfs_inode_fork.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) * Kernel only inode definitions
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) struct xfs_dinode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) struct xfs_inode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) struct xfs_buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) struct xfs_bmbt_irec;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) struct xfs_inode_log_item;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) struct xfs_mount;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) struct xfs_trans;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) struct xfs_dquot;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) typedef struct xfs_inode {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) /* Inode linking and identification information. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) struct xfs_mount *i_mount; /* fs mount struct ptr */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) struct xfs_dquot *i_udquot; /* user dquot */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) struct xfs_dquot *i_gdquot; /* group dquot */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) struct xfs_dquot *i_pdquot; /* project dquot */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) /* Inode location stuff */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) xfs_ino_t i_ino; /* inode number (agno/agino)*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) struct xfs_imap i_imap; /* location for xfs_imap() */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) /* Extent information. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) struct xfs_ifork *i_afp; /* attribute fork pointer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) struct xfs_ifork *i_cowfp; /* copy on write extents */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) struct xfs_ifork i_df; /* data fork */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) /* Transaction and locking information. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) struct xfs_inode_log_item *i_itemp; /* logging information */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) mrlock_t i_lock; /* inode lock */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) mrlock_t i_mmaplock; /* inode mmap IO lock */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) atomic_t i_pincount; /* inode pin count */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) * Bitsets of inode metadata that have been checked and/or are sick.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) * Callers must hold i_flags_lock before accessing this field.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) uint16_t i_checked;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) uint16_t i_sick;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) spinlock_t i_flags_lock; /* inode i_flags lock */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) /* Miscellaneous state. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) unsigned long i_flags; /* see defined flags below */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) uint64_t i_delayed_blks; /* count of delay alloc blks */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) struct xfs_icdinode i_d; /* most of ondisk inode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) /* VFS inode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) struct inode i_vnode; /* embedded VFS inode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) /* pending io completions */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) spinlock_t i_ioend_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) struct work_struct i_ioend_work;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) struct list_head i_ioend_list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) } xfs_inode_t;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) /* Convert from vfs inode to xfs inode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) static inline struct xfs_inode *XFS_I(struct inode *inode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) return container_of(inode, struct xfs_inode, i_vnode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) /* convert from xfs inode to vfs inode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) static inline struct inode *VFS_I(struct xfs_inode *ip)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) return &ip->i_vnode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) * For regular files we only update the on-disk filesize when actually
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) * writing data back to disk. Until then only the copy in the VFS inode
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) * is uptodate.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) static inline xfs_fsize_t XFS_ISIZE(struct xfs_inode *ip)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) if (S_ISREG(VFS_I(ip)->i_mode))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) return i_size_read(VFS_I(ip));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) return ip->i_d.di_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) * If this I/O goes past the on-disk inode size update it unless it would
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) * be past the current in-core inode size.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) static inline xfs_fsize_t
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) xfs_new_eof(struct xfs_inode *ip, xfs_fsize_t new_size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) xfs_fsize_t i_size = i_size_read(VFS_I(ip));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) if (new_size > i_size || new_size < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) new_size = i_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) return new_size > ip->i_d.di_size ? new_size : 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) * i_flags helper functions
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) static inline void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) __xfs_iflags_set(xfs_inode_t *ip, unsigned short flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) ip->i_flags |= flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) static inline void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) xfs_iflags_set(xfs_inode_t *ip, unsigned short flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) spin_lock(&ip->i_flags_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) __xfs_iflags_set(ip, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) spin_unlock(&ip->i_flags_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) static inline void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) xfs_iflags_clear(xfs_inode_t *ip, unsigned short flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) spin_lock(&ip->i_flags_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) ip->i_flags &= ~flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) spin_unlock(&ip->i_flags_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) static inline int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) __xfs_iflags_test(xfs_inode_t *ip, unsigned short flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) return (ip->i_flags & flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) static inline int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) xfs_iflags_test(xfs_inode_t *ip, unsigned short flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) spin_lock(&ip->i_flags_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) ret = __xfs_iflags_test(ip, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) spin_unlock(&ip->i_flags_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) static inline int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) xfs_iflags_test_and_clear(xfs_inode_t *ip, unsigned short flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) spin_lock(&ip->i_flags_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) ret = ip->i_flags & flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) ip->i_flags &= ~flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) spin_unlock(&ip->i_flags_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) static inline int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) xfs_iflags_test_and_set(xfs_inode_t *ip, unsigned short flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) spin_lock(&ip->i_flags_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) ret = ip->i_flags & flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) if (!ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) ip->i_flags |= flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) spin_unlock(&ip->i_flags_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) static inline prid_t
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) xfs_get_initial_prid(struct xfs_inode *dp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) if (dp->i_d.di_flags & XFS_DIFLAG_PROJINHERIT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) return dp->i_d.di_projid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) return XFS_PROJID_DEFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) static inline bool xfs_is_reflink_inode(struct xfs_inode *ip)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) return ip->i_d.di_flags2 & XFS_DIFLAG2_REFLINK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) * Check if an inode has any data in the COW fork. This might be often false
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) * even for inodes with the reflink flag when there is no pending COW operation.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) static inline bool xfs_inode_has_cow_data(struct xfs_inode *ip)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) return ip->i_cowfp && ip->i_cowfp->if_bytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) static inline bool xfs_inode_has_bigtime(struct xfs_inode *ip)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) return ip->i_d.di_flags2 & XFS_DIFLAG2_BIGTIME;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) * Return the buftarg used for data allocations on a given inode.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) #define xfs_inode_buftarg(ip) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) (XFS_IS_REALTIME_INODE(ip) ? \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) (ip)->i_mount->m_rtdev_targp : (ip)->i_mount->m_ddev_targp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) * In-core inode flags.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) #define XFS_IRECLAIM (1 << 0) /* started reclaiming this inode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) #define XFS_ISTALE (1 << 1) /* inode has been staled */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) #define XFS_IRECLAIMABLE (1 << 2) /* inode can be reclaimed */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) #define __XFS_INEW_BIT 3 /* inode has just been allocated */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) #define XFS_INEW (1 << __XFS_INEW_BIT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) #define XFS_ITRUNCATED (1 << 5) /* truncated down so flush-on-close */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) #define XFS_IDIRTY_RELEASE (1 << 6) /* dirty release already seen */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) #define XFS_IFLUSHING (1 << 7) /* inode is being flushed */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) #define __XFS_IPINNED_BIT 8 /* wakeup key for zero pin count */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) #define XFS_IPINNED (1 << __XFS_IPINNED_BIT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) #define XFS_IEOFBLOCKS (1 << 9) /* has the preallocblocks tag set */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) * If this unlinked inode is in the middle of recovery, don't let drop_inode
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) * truncate and free the inode. This can happen if we iget the inode during
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) * log recovery to replay a bmap operation on the inode.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) #define XFS_IRECOVERY (1 << 11)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) #define XFS_ICOWBLOCKS (1 << 12)/* has the cowblocks tag set */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) * Per-lifetime flags need to be reset when re-using a reclaimable inode during
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) * inode lookup. This prevents unintended behaviour on the new inode from
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) * ocurring.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) #define XFS_IRECLAIM_RESET_FLAGS \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) (XFS_IRECLAIMABLE | XFS_IRECLAIM | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) XFS_IDIRTY_RELEASE | XFS_ITRUNCATED)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) * Flags for inode locking.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) * Bit ranges: 1<<1 - 1<<16-1 -- iolock/ilock modes (bitfield)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) * 1<<16 - 1<<32-1 -- lockdep annotation (integers)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) #define XFS_IOLOCK_EXCL (1<<0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) #define XFS_IOLOCK_SHARED (1<<1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) #define XFS_ILOCK_EXCL (1<<2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) #define XFS_ILOCK_SHARED (1<<3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) #define XFS_MMAPLOCK_EXCL (1<<4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) #define XFS_MMAPLOCK_SHARED (1<<5)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) #define XFS_LOCK_MASK (XFS_IOLOCK_EXCL | XFS_IOLOCK_SHARED \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) | XFS_ILOCK_EXCL | XFS_ILOCK_SHARED \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) | XFS_MMAPLOCK_EXCL | XFS_MMAPLOCK_SHARED)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) #define XFS_LOCK_FLAGS \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) { XFS_IOLOCK_EXCL, "IOLOCK_EXCL" }, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) { XFS_IOLOCK_SHARED, "IOLOCK_SHARED" }, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) { XFS_ILOCK_EXCL, "ILOCK_EXCL" }, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) { XFS_ILOCK_SHARED, "ILOCK_SHARED" }, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) { XFS_MMAPLOCK_EXCL, "MMAPLOCK_EXCL" }, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) { XFS_MMAPLOCK_SHARED, "MMAPLOCK_SHARED" }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) * Flags for lockdep annotations.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) * XFS_LOCK_PARENT - for directory operations that require locking a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) * parent directory inode and a child entry inode. IOLOCK requires nesting,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) * MMAPLOCK does not support this class, ILOCK requires a single subclass
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) * to differentiate parent from child.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) * XFS_LOCK_RTBITMAP/XFS_LOCK_RTSUM - the realtime device bitmap and summary
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) * inodes do not participate in the normal lock order, and thus have their
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) * own subclasses.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) * XFS_LOCK_INUMORDER - for locking several inodes at the some time
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) * with xfs_lock_inodes(). This flag is used as the starting subclass
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) * and each subsequent lock acquired will increment the subclass by one.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) * However, MAX_LOCKDEP_SUBCLASSES == 8, which means we are greatly
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) * limited to the subclasses we can represent via nesting. We need at least
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) * 5 inodes nest depth for the ILOCK through rename, and we also have to support
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) * XFS_ILOCK_PARENT, which gives 6 subclasses. Then we have XFS_ILOCK_RTBITMAP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) * and XFS_ILOCK_RTSUM, which are another 2 unique subclasses, so that's all
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) * 8 subclasses supported by lockdep.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) * This also means we have to number the sub-classes in the lowest bits of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) * the mask we keep, and we have to ensure we never exceed 3 bits of lockdep
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) * mask and we can't use bit-masking to build the subclasses. What a mess.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) * Bit layout:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) * Bit Lock Region
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) * 16-19 XFS_IOLOCK_SHIFT dependencies
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) * 20-23 XFS_MMAPLOCK_SHIFT dependencies
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) * 24-31 XFS_ILOCK_SHIFT dependencies
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) * IOLOCK values
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) * 0-3 subclass value
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) * 4-7 unused
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) * MMAPLOCK values
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) * 0-3 subclass value
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) * 4-7 unused
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) * ILOCK values
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) * 0-4 subclass values
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) * 5 PARENT subclass (not nestable)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) * 6 RTBITMAP subclass (not nestable)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) * 7 RTSUM subclass (not nestable)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) #define XFS_IOLOCK_SHIFT 16
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) #define XFS_IOLOCK_MAX_SUBCLASS 3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) #define XFS_IOLOCK_DEP_MASK 0x000f0000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) #define XFS_MMAPLOCK_SHIFT 20
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) #define XFS_MMAPLOCK_NUMORDER 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) #define XFS_MMAPLOCK_MAX_SUBCLASS 3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) #define XFS_MMAPLOCK_DEP_MASK 0x00f00000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) #define XFS_ILOCK_SHIFT 24
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) #define XFS_ILOCK_PARENT_VAL 5
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) #define XFS_ILOCK_MAX_SUBCLASS (XFS_ILOCK_PARENT_VAL - 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) #define XFS_ILOCK_RTBITMAP_VAL 6
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) #define XFS_ILOCK_RTSUM_VAL 7
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) #define XFS_ILOCK_DEP_MASK 0xff000000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) #define XFS_ILOCK_PARENT (XFS_ILOCK_PARENT_VAL << XFS_ILOCK_SHIFT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) #define XFS_ILOCK_RTBITMAP (XFS_ILOCK_RTBITMAP_VAL << XFS_ILOCK_SHIFT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) #define XFS_ILOCK_RTSUM (XFS_ILOCK_RTSUM_VAL << XFS_ILOCK_SHIFT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) #define XFS_LOCK_SUBCLASS_MASK (XFS_IOLOCK_DEP_MASK | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) XFS_MMAPLOCK_DEP_MASK | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) XFS_ILOCK_DEP_MASK)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) #define XFS_IOLOCK_DEP(flags) (((flags) & XFS_IOLOCK_DEP_MASK) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) >> XFS_IOLOCK_SHIFT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) #define XFS_MMAPLOCK_DEP(flags) (((flags) & XFS_MMAPLOCK_DEP_MASK) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) >> XFS_MMAPLOCK_SHIFT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) #define XFS_ILOCK_DEP(flags) (((flags) & XFS_ILOCK_DEP_MASK) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) >> XFS_ILOCK_SHIFT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) * Layouts are broken in the BREAK_WRITE case to ensure that
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) * layout-holders do not collide with local writes. Additionally,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) * layouts are broken in the BREAK_UNMAP case to make sure the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) * layout-holder has a consistent view of the file's extent map. While
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) * BREAK_WRITE breaks can be satisfied by recalling FL_LAYOUT leases,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) * BREAK_UNMAP breaks additionally require waiting for busy dax-pages to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) * go idle.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) enum layout_break_reason {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) BREAK_WRITE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) BREAK_UNMAP,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) * For multiple groups support: if S_ISGID bit is set in the parent
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) * directory, group of new file is set to that of the parent, and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) * new subdirectory gets S_ISGID bit from parent.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) #define XFS_INHERIT_GID(pip) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) (((pip)->i_mount->m_flags & XFS_MOUNT_GRPID) || \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) (VFS_I(pip)->i_mode & S_ISGID))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) int xfs_release(struct xfs_inode *ip);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) void xfs_inactive(struct xfs_inode *ip);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) int xfs_lookup(struct xfs_inode *dp, struct xfs_name *name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) struct xfs_inode **ipp, struct xfs_name *ci_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) int xfs_create(struct xfs_inode *dp, struct xfs_name *name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) umode_t mode, dev_t rdev, struct xfs_inode **ipp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) int xfs_create_tmpfile(struct xfs_inode *dp, umode_t mode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) struct xfs_inode **ipp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) int xfs_remove(struct xfs_inode *dp, struct xfs_name *name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) struct xfs_inode *ip);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) int xfs_link(struct xfs_inode *tdp, struct xfs_inode *sip,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) struct xfs_name *target_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) int xfs_rename(struct xfs_inode *src_dp, struct xfs_name *src_name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) struct xfs_inode *src_ip, struct xfs_inode *target_dp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) struct xfs_name *target_name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) struct xfs_inode *target_ip, unsigned int flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) void xfs_ilock(xfs_inode_t *, uint);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) int xfs_ilock_nowait(xfs_inode_t *, uint);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) void xfs_iunlock(xfs_inode_t *, uint);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) void xfs_ilock_demote(xfs_inode_t *, uint);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) int xfs_isilocked(xfs_inode_t *, uint);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) uint xfs_ilock_data_map_shared(struct xfs_inode *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) uint xfs_ilock_attr_map_shared(struct xfs_inode *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) uint xfs_ip2xflags(struct xfs_inode *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) int xfs_ifree(struct xfs_trans *, struct xfs_inode *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) int xfs_itruncate_extents_flags(struct xfs_trans **,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) struct xfs_inode *, int, xfs_fsize_t, int);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) void xfs_iext_realloc(xfs_inode_t *, int, int);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) int xfs_log_force_inode(struct xfs_inode *ip);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) void xfs_iunpin_wait(xfs_inode_t *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) #define xfs_ipincount(ip) ((unsigned int) atomic_read(&ip->i_pincount))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) int xfs_iflush_cluster(struct xfs_buf *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) void xfs_lock_two_inodes(struct xfs_inode *ip0, uint ip0_mode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) struct xfs_inode *ip1, uint ip1_mode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) xfs_extlen_t xfs_get_extsz_hint(struct xfs_inode *ip);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) xfs_extlen_t xfs_get_cowextsz_hint(struct xfs_inode *ip);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) int xfs_dir_ialloc(struct xfs_trans **, struct xfs_inode *, umode_t,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) xfs_nlink_t, dev_t, prid_t,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) struct xfs_inode **);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) static inline int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) xfs_itruncate_extents(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) struct xfs_trans **tpp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) struct xfs_inode *ip,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) int whichfork,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) xfs_fsize_t new_size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) return xfs_itruncate_extents_flags(tpp, ip, whichfork, new_size, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) /* from xfs_file.c */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) enum xfs_prealloc_flags {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) XFS_PREALLOC_SET = (1 << 1),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) XFS_PREALLOC_CLEAR = (1 << 2),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) XFS_PREALLOC_SYNC = (1 << 3),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) XFS_PREALLOC_INVISIBLE = (1 << 4),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) int xfs_update_prealloc_flags(struct xfs_inode *ip,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) enum xfs_prealloc_flags flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) int xfs_break_layouts(struct inode *inode, uint *iolock,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) enum layout_break_reason reason);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) /* from xfs_iops.c */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) extern void xfs_setup_inode(struct xfs_inode *ip);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) extern void xfs_setup_iops(struct xfs_inode *ip);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) extern void xfs_diflags_to_iflags(struct xfs_inode *ip, bool init);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) * When setting up a newly allocated inode, we need to call
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) * xfs_finish_inode_setup() once the inode is fully instantiated at
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) * the VFS level to prevent the rest of the world seeing the inode
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) * before we've completed instantiation. Otherwise we can do it
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) * the moment the inode lookup is complete.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) static inline void xfs_finish_inode_setup(struct xfs_inode *ip)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) xfs_iflags_clear(ip, XFS_INEW);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) barrier();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) unlock_new_inode(VFS_I(ip));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) wake_up_bit(&ip->i_flags, __XFS_INEW_BIT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) static inline void xfs_setup_existing_inode(struct xfs_inode *ip)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) xfs_setup_inode(ip);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) xfs_setup_iops(ip);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) xfs_finish_inode_setup(ip);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) void xfs_irele(struct xfs_inode *ip);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) extern struct kmem_zone *xfs_inode_zone;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) /* The default CoW extent size hint. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) #define XFS_DEFAULT_COWEXTSZ_HINT 32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) int xfs_iunlink_init(struct xfs_perag *pag);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) void xfs_iunlink_destroy(struct xfs_perag *pag);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) void xfs_end_io(struct work_struct *work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) int xfs_ilock2_io_mmap(struct xfs_inode *ip1, struct xfs_inode *ip2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) void xfs_iunlock2_io_mmap(struct xfs_inode *ip1, struct xfs_inode *ip2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) #endif /* __XFS_INODE_H__ */
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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