^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /* SPDX-License-Identifier: GPL-2.0-or-later */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /* -*- mode: c; c-basic-offset: 8; -*-
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * vim: noexpandtab sw=8 ts=8 sts=0:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * ocfs2.h
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Defines macros and structures used in OCFS2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * Copyright (C) 2002, 2004 Oracle. All rights reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #ifndef OCFS2_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #define OCFS2_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/spinlock.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/sched.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/wait.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/list.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <linux/llist.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <linux/rbtree.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <linux/workqueue.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include <linux/kref.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include <linux/mutex.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #include <linux/lockdep.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #include <linux/jbd2.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) /* For union ocfs2_dlm_lksb */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #include "stackglue.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #include "ocfs2_fs.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #include "ocfs2_lockid.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #include "ocfs2_ioctl.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) /* For struct ocfs2_blockcheck_stats */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #include "blockcheck.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) #include "reservations.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) #include "filecheck.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) /* Caching of metadata buffers */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) /* Most user visible OCFS2 inodes will have very few pieces of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) * metadata, but larger files (including bitmaps, etc) must be taken
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) * into account when designing an access scheme. We allow a small
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) * amount of inlined blocks to be stored on an array and grow the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) * structure into a rb tree when necessary. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) #define OCFS2_CACHE_INFO_MAX_ARRAY 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) /* Flags for ocfs2_caching_info */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) enum ocfs2_caching_info_flags {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) /* Indicates that the metadata cache is using the inline array */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) OCFS2_CACHE_FL_INLINE = 1<<1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) struct ocfs2_caching_operations;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) struct ocfs2_caching_info {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) * The parent structure provides the locks, but because the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) * parent structure can differ, it provides locking operations
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) * to struct ocfs2_caching_info.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) const struct ocfs2_caching_operations *ci_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) /* next two are protected by trans_inc_lock */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) /* which transaction were we created on? Zero if none. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) unsigned long ci_created_trans;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) /* last transaction we were a part of. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) unsigned long ci_last_trans;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) /* Cache structures */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) unsigned int ci_flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) unsigned int ci_num_cached;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) union {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) sector_t ci_array[OCFS2_CACHE_INFO_MAX_ARRAY];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) struct rb_root ci_tree;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) } ci_cache;
^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) * Need this prototype here instead of in uptodate.h because journal.h
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) * uses it.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) struct super_block *ocfs2_metadata_cache_get_super(struct ocfs2_caching_info *ci);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) /* this limits us to 256 nodes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) * if we need more, we can do a kmalloc for the map */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) #define OCFS2_NODE_MAP_MAX_NODES 256
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) struct ocfs2_node_map {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) u16 num_nodes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) unsigned long map[BITS_TO_LONGS(OCFS2_NODE_MAP_MAX_NODES)];
^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) enum ocfs2_ast_action {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) OCFS2_AST_INVALID = 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) OCFS2_AST_ATTACH,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) OCFS2_AST_CONVERT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) OCFS2_AST_DOWNCONVERT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) /* actions for an unlockast function to take. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) enum ocfs2_unlock_action {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) OCFS2_UNLOCK_INVALID = 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) OCFS2_UNLOCK_CANCEL_CONVERT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) OCFS2_UNLOCK_DROP_LOCK,
^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) /* ocfs2_lock_res->l_flags flags. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) #define OCFS2_LOCK_ATTACHED (0x00000001) /* we have initialized
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) * the lvb */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) #define OCFS2_LOCK_BUSY (0x00000002) /* we are currently in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) * dlm_lock */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) #define OCFS2_LOCK_BLOCKED (0x00000004) /* blocked waiting to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) * downconvert*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) #define OCFS2_LOCK_LOCAL (0x00000008) /* newly created inode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) #define OCFS2_LOCK_NEEDS_REFRESH (0x00000010)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) #define OCFS2_LOCK_REFRESHING (0x00000020)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) #define OCFS2_LOCK_INITIALIZED (0x00000040) /* track initialization
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) * for shutdown paths */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) #define OCFS2_LOCK_FREEING (0x00000080) /* help dlmglue track
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) * when to skip queueing
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) * a lock because it's
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) * about to be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) * dropped. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) #define OCFS2_LOCK_QUEUED (0x00000100) /* queued for downconvert */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) #define OCFS2_LOCK_NOCACHE (0x00000200) /* don't use a holder count */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) #define OCFS2_LOCK_PENDING (0x00000400) /* This lockres is pending a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) call to dlm_lock. Only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) exists with BUSY set. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) #define OCFS2_LOCK_UPCONVERT_FINISHING (0x00000800) /* blocks the dc thread
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) * from downconverting
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) * before the upconvert
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) * has completed */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) #define OCFS2_LOCK_NONBLOCK_FINISHED (0x00001000) /* NONBLOCK cluster
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) * lock has already
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) * returned, do not block
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) * dc thread from
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) * downconverting */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) struct ocfs2_lock_res_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) typedef void (*ocfs2_lock_callback)(int status, unsigned long data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) #ifdef CONFIG_OCFS2_FS_STATS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) struct ocfs2_lock_stats {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) u64 ls_total; /* Total wait in NSEC */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) u32 ls_gets; /* Num acquires */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) u32 ls_fail; /* Num failed acquires */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) /* Storing max wait in usecs saves 24 bytes per inode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) u32 ls_max; /* Max wait in USEC */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) u64 ls_last; /* Last unlock time in USEC */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) struct ocfs2_lock_res {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) void *l_priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) struct ocfs2_lock_res_ops *l_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) struct list_head l_blocked_list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) struct list_head l_mask_waiters;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) struct list_head l_holders;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) unsigned long l_flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) char l_name[OCFS2_LOCK_ID_MAX_LEN];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) unsigned int l_ro_holders;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) unsigned int l_ex_holders;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) signed char l_level;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) signed char l_requested;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) signed char l_blocking;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) /* Data packed - type enum ocfs2_lock_type */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) unsigned char l_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) /* used from AST/BAST funcs. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) /* Data packed - enum type ocfs2_ast_action */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) unsigned char l_action;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) /* Data packed - enum type ocfs2_unlock_action */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) unsigned char l_unlock_action;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) unsigned int l_pending_gen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) spinlock_t l_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) struct ocfs2_dlm_lksb l_lksb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) wait_queue_head_t l_event;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) struct list_head l_debug_list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) #ifdef CONFIG_OCFS2_FS_STATS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) struct ocfs2_lock_stats l_lock_prmode; /* PR mode stats */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) u32 l_lock_refresh; /* Disk refreshes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) u64 l_lock_wait; /* First lock wait time */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) struct ocfs2_lock_stats l_lock_exmode; /* EX mode stats */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) #ifdef CONFIG_DEBUG_LOCK_ALLOC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) struct lockdep_map l_lockdep_map;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) #endif
^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) enum ocfs2_orphan_reco_type {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) ORPHAN_NO_NEED_TRUNCATE = 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) ORPHAN_NEED_TRUNCATE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) enum ocfs2_orphan_scan_state {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) ORPHAN_SCAN_ACTIVE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) ORPHAN_SCAN_INACTIVE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) struct ocfs2_orphan_scan {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) struct mutex os_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) struct ocfs2_super *os_osb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) struct ocfs2_lock_res os_lockres; /* lock to synchronize scans */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) struct delayed_work os_orphan_scan_work;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) time64_t os_scantime; /* time this node ran the scan */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) u32 os_count; /* tracks node specific scans */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) u32 os_seqno; /* tracks cluster wide scans */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) atomic_t os_state; /* ACTIVE or INACTIVE */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) struct ocfs2_dlm_debug {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) struct kref d_refcnt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) u32 d_filter_secs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) struct list_head d_lockres_tracking;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) enum ocfs2_vol_state
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) VOLUME_INIT = 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) VOLUME_MOUNTED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) VOLUME_MOUNTED_QUOTAS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) VOLUME_DISMOUNTED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) VOLUME_DISABLED
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) struct ocfs2_alloc_stats
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) atomic_t moves;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) atomic_t local_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) atomic_t bitmap_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) atomic_t bg_allocs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) atomic_t bg_extends;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) enum ocfs2_local_alloc_state
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) OCFS2_LA_UNUSED = 0, /* Local alloc will never be used for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) * this mountpoint. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) OCFS2_LA_ENABLED, /* Local alloc is in use. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) OCFS2_LA_THROTTLED, /* Local alloc is in use, but number
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) * of bits has been reduced. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) OCFS2_LA_DISABLED /* Local alloc has temporarily been
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) * disabled. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) enum ocfs2_mount_options
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) OCFS2_MOUNT_HB_LOCAL = 1 << 0, /* Local heartbeat */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) OCFS2_MOUNT_BARRIER = 1 << 1, /* Use block barriers */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) OCFS2_MOUNT_NOINTR = 1 << 2, /* Don't catch signals */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) OCFS2_MOUNT_ERRORS_PANIC = 1 << 3, /* Panic on errors */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) OCFS2_MOUNT_DATA_WRITEBACK = 1 << 4, /* No data ordering */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) OCFS2_MOUNT_LOCALFLOCKS = 1 << 5, /* No cluster aware user file locks */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) OCFS2_MOUNT_NOUSERXATTR = 1 << 6, /* No user xattr */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) OCFS2_MOUNT_INODE64 = 1 << 7, /* Allow inode numbers > 2^32 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) OCFS2_MOUNT_POSIX_ACL = 1 << 8, /* Force POSIX access control lists */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) OCFS2_MOUNT_NO_POSIX_ACL = 1 << 9, /* Disable POSIX access
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) control lists */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) OCFS2_MOUNT_USRQUOTA = 1 << 10, /* We support user quotas */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) OCFS2_MOUNT_GRPQUOTA = 1 << 11, /* We support group quotas */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) OCFS2_MOUNT_COHERENCY_BUFFERED = 1 << 12, /* Allow concurrent O_DIRECT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) writes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) OCFS2_MOUNT_HB_NONE = 1 << 13, /* No heartbeat */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) OCFS2_MOUNT_HB_GLOBAL = 1 << 14, /* Global heartbeat */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) OCFS2_MOUNT_JOURNAL_ASYNC_COMMIT = 1 << 15, /* Journal Async Commit */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) OCFS2_MOUNT_ERRORS_CONT = 1 << 16, /* Return EIO to the calling process on error */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) OCFS2_MOUNT_ERRORS_ROFS = 1 << 17, /* Change filesystem to read-only on error */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) OCFS2_MOUNT_NOCLUSTER = 1 << 18, /* No cluster aware filesystem mount */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) #define OCFS2_OSB_SOFT_RO 0x0001
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) #define OCFS2_OSB_HARD_RO 0x0002
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) #define OCFS2_OSB_ERROR_FS 0x0004
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) #define OCFS2_DEFAULT_ATIME_QUANTUM 60
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) struct ocfs2_journal;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) struct ocfs2_slot_info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) struct ocfs2_recovery_map;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) struct ocfs2_replay_map;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) struct ocfs2_quota_recovery;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) struct ocfs2_super
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) struct task_struct *commit_task;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) struct super_block *sb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) struct inode *root_inode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) struct inode *sys_root_inode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) struct inode *global_system_inodes[NUM_GLOBAL_SYSTEM_INODES];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) struct inode **local_system_inodes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) struct ocfs2_slot_info *slot_info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) u32 *slot_recovery_generations;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) spinlock_t node_map_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) u64 root_blkno;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) u64 system_dir_blkno;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) u64 bitmap_blkno;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) u32 bitmap_cpg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) char *uuid_str;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) u32 uuid_hash;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) u8 *vol_label;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) u64 first_cluster_group_blkno;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) u32 fs_generation;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) u32 s_feature_compat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) u32 s_feature_incompat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) u32 s_feature_ro_compat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) /* Protects s_next_generation, osb_flags and s_inode_steal_slot.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) * Could protect more on osb as it's very short lived.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) spinlock_t osb_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) u32 s_next_generation;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) unsigned long osb_flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) u16 s_inode_steal_slot;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) u16 s_meta_steal_slot;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) atomic_t s_num_inodes_stolen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) atomic_t s_num_meta_stolen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) unsigned long s_mount_opt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) unsigned int s_atime_quantum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) unsigned int max_slots;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) unsigned int node_num;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) int slot_num;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) int preferred_slot;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) int s_sectsize_bits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) int s_clustersize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) int s_clustersize_bits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) unsigned int s_xattr_inline_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) atomic_t vol_state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) struct mutex recovery_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) struct ocfs2_recovery_map *recovery_map;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) struct ocfs2_replay_map *replay_map;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) struct task_struct *recovery_thread_task;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) int disable_recovery;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) wait_queue_head_t checkpoint_event;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) struct ocfs2_journal *journal;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) unsigned long osb_commit_interval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) struct delayed_work la_enable_wq;
^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) * Must hold local alloc i_mutex and osb->osb_lock to change
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) * local_alloc_bits. Reads can be done under either lock.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) unsigned int local_alloc_bits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) unsigned int local_alloc_default_bits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) /* osb_clusters_at_boot can become stale! Do not trust it to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) * be up to date. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) unsigned int osb_clusters_at_boot;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) enum ocfs2_local_alloc_state local_alloc_state; /* protected
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) * by osb_lock */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) struct buffer_head *local_alloc_bh;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) u64 la_last_gd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) struct ocfs2_reservation_map osb_la_resmap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) unsigned int osb_resv_level;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) unsigned int osb_dir_resv_level;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) /* Next two fields are for local node slot recovery during
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) * mount. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) struct ocfs2_dinode *local_alloc_copy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) struct ocfs2_quota_recovery *quota_rec;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) struct ocfs2_blockcheck_stats osb_ecc_stats;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) struct ocfs2_alloc_stats alloc_stats;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) char dev_str[20]; /* "major,minor" of the device */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) u8 osb_stackflags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) char osb_cluster_stack[OCFS2_STACK_LABEL_LEN + 1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) char osb_cluster_name[OCFS2_CLUSTER_NAME_LEN + 1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) struct ocfs2_cluster_connection *cconn;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) struct ocfs2_lock_res osb_super_lockres;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) struct ocfs2_lock_res osb_rename_lockres;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) struct ocfs2_lock_res osb_nfs_sync_lockres;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) struct rw_semaphore nfs_sync_rwlock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) struct ocfs2_lock_res osb_trim_fs_lockres;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) struct mutex obs_trim_fs_mutex;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) struct ocfs2_dlm_debug *osb_dlm_debug;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) struct dentry *osb_debug_root;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) wait_queue_head_t recovery_event;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) spinlock_t dc_task_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) struct task_struct *dc_task;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) wait_queue_head_t dc_event;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) unsigned long dc_wake_sequence;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) unsigned long dc_work_sequence;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) * Any thread can add locks to the list, but the downconvert
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) * thread is the only one allowed to remove locks. Any change
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) * to this rule requires updating
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) * ocfs2_downconvert_thread_do_work().
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) struct list_head blocked_lock_list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) unsigned long blocked_lock_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) /* List of dquot structures to drop last reference to */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) struct llist_head dquot_drop_list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) struct work_struct dquot_drop_work;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) wait_queue_head_t osb_mount_event;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) /* Truncate log info */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) struct inode *osb_tl_inode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) struct buffer_head *osb_tl_bh;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) struct delayed_work osb_truncate_log_wq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) atomic_t osb_tl_disable;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) * How many clusters in our truncate log.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) * It must be protected by osb_tl_inode->i_mutex.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) unsigned int truncated_clusters;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) struct ocfs2_node_map osb_recovering_orphan_dirs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) unsigned int *osb_orphan_wipes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) wait_queue_head_t osb_wipe_event;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) struct ocfs2_orphan_scan osb_orphan_scan;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) /* used to protect metaecc calculation check of xattr. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) spinlock_t osb_xattr_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) unsigned int osb_dx_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) u32 osb_dx_seed[4];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) /* the group we used to allocate inodes. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) u64 osb_inode_alloc_group;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) /* rb tree root for refcount lock. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) struct rb_root osb_rf_lock_tree;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) struct ocfs2_refcount_tree *osb_ref_tree_lru;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) struct mutex system_file_mutex;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) * OCFS2 needs to schedule several different types of work which
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) * require cluster locking, disk I/O, recovery waits, etc. Since these
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) * types of work tend to be heavy we avoid using the kernel events
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) * workqueue and schedule on our own.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) struct workqueue_struct *ocfs2_wq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) /* sysfs directory per partition */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) struct kset *osb_dev_kset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) /* file check related stuff */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) struct ocfs2_filecheck_sysfs_entry osb_fc_ent;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) #define OCFS2_SB(sb) ((struct ocfs2_super *)(sb)->s_fs_info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) /* Useful typedef for passing around journal access functions */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) typedef int (*ocfs2_journal_access_func)(handle_t *handle,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) struct ocfs2_caching_info *ci,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) struct buffer_head *bh, int type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) static inline int ocfs2_should_order_data(struct inode *inode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) if (!S_ISREG(inode->i_mode))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) if (OCFS2_SB(inode->i_sb)->s_mount_opt & OCFS2_MOUNT_DATA_WRITEBACK)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) static inline int ocfs2_sparse_alloc(struct ocfs2_super *osb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) if (osb->s_feature_incompat & OCFS2_FEATURE_INCOMPAT_SPARSE_ALLOC)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) static inline int ocfs2_writes_unwritten_extents(struct ocfs2_super *osb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) * Support for sparse files is a pre-requisite
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) if (!ocfs2_sparse_alloc(osb))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) if (osb->s_feature_ro_compat & OCFS2_FEATURE_RO_COMPAT_UNWRITTEN)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) static inline int ocfs2_supports_append_dio(struct ocfs2_super *osb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) if (osb->s_feature_incompat & OCFS2_FEATURE_INCOMPAT_APPEND_DIO)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) static inline int ocfs2_supports_inline_data(struct ocfs2_super *osb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) if (osb->s_feature_incompat & OCFS2_FEATURE_INCOMPAT_INLINE_DATA)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) static inline int ocfs2_supports_xattr(struct ocfs2_super *osb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) if (osb->s_feature_incompat & OCFS2_FEATURE_INCOMPAT_XATTR)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) static inline int ocfs2_meta_ecc(struct ocfs2_super *osb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) if (osb->s_feature_incompat & OCFS2_FEATURE_INCOMPAT_META_ECC)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) static inline int ocfs2_supports_indexed_dirs(struct ocfs2_super *osb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) if (osb->s_feature_incompat & OCFS2_FEATURE_INCOMPAT_INDEXED_DIRS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) static inline int ocfs2_supports_discontig_bg(struct ocfs2_super *osb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) if (osb->s_feature_incompat & OCFS2_FEATURE_INCOMPAT_DISCONTIG_BG)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) static inline unsigned int ocfs2_link_max(struct ocfs2_super *osb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) if (ocfs2_supports_indexed_dirs(osb))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) return OCFS2_DX_LINK_MAX;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) return OCFS2_LINK_MAX;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) static inline unsigned int ocfs2_read_links_count(struct ocfs2_dinode *di)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) u32 nlink = le16_to_cpu(di->i_links_count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) u32 hi = le16_to_cpu(di->i_links_count_hi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) if (di->i_dyn_features & cpu_to_le16(OCFS2_INDEXED_DIR_FL))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) nlink |= (hi << OCFS2_LINKS_HI_SHIFT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) return nlink;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) static inline void ocfs2_set_links_count(struct ocfs2_dinode *di, u32 nlink)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) u16 lo, hi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) lo = nlink;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) hi = nlink >> OCFS2_LINKS_HI_SHIFT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) di->i_links_count = cpu_to_le16(lo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) di->i_links_count_hi = cpu_to_le16(hi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) static inline void ocfs2_add_links_count(struct ocfs2_dinode *di, int n)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) u32 links = ocfs2_read_links_count(di);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) links += n;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) ocfs2_set_links_count(di, links);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) static inline int ocfs2_refcount_tree(struct ocfs2_super *osb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) if (osb->s_feature_incompat & OCFS2_FEATURE_INCOMPAT_REFCOUNT_TREE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) /* set / clear functions because cluster events can make these happen
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) * in parallel so we want the transitions to be atomic. this also
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) * means that any future flags osb_flags must be protected by spinlock
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) * too! */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) static inline void ocfs2_set_osb_flag(struct ocfs2_super *osb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604) unsigned long flag)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) spin_lock(&osb->osb_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) osb->osb_flags |= flag;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) spin_unlock(&osb->osb_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) static inline void ocfs2_set_ro_flag(struct ocfs2_super *osb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) int hard)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) spin_lock(&osb->osb_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) osb->osb_flags &= ~(OCFS2_OSB_SOFT_RO|OCFS2_OSB_HARD_RO);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616) if (hard)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) osb->osb_flags |= OCFS2_OSB_HARD_RO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619) osb->osb_flags |= OCFS2_OSB_SOFT_RO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) spin_unlock(&osb->osb_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) static inline int ocfs2_is_hard_readonly(struct ocfs2_super *osb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) spin_lock(&osb->osb_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) ret = osb->osb_flags & OCFS2_OSB_HARD_RO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) spin_unlock(&osb->osb_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) static inline int ocfs2_is_soft_readonly(struct ocfs2_super *osb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) spin_lock(&osb->osb_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639) ret = osb->osb_flags & OCFS2_OSB_SOFT_RO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) spin_unlock(&osb->osb_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) static inline int ocfs2_clusterinfo_valid(struct ocfs2_super *osb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) return (osb->s_feature_incompat &
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) (OCFS2_FEATURE_INCOMPAT_USERSPACE_STACK |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649) OCFS2_FEATURE_INCOMPAT_CLUSTERINFO));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) static inline int ocfs2_userspace_stack(struct ocfs2_super *osb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) if (ocfs2_clusterinfo_valid(osb) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) memcmp(osb->osb_cluster_stack, OCFS2_CLASSIC_CLUSTER_STACK,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) OCFS2_STACK_LABEL_LEN))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661) static inline int ocfs2_o2cb_stack(struct ocfs2_super *osb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) if (ocfs2_clusterinfo_valid(osb) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664) !memcmp(osb->osb_cluster_stack, OCFS2_CLASSIC_CLUSTER_STACK,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665) OCFS2_STACK_LABEL_LEN))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) static inline int ocfs2_cluster_o2cb_global_heartbeat(struct ocfs2_super *osb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672) return ocfs2_o2cb_stack(osb) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) (osb->osb_stackflags & OCFS2_CLUSTER_O2CB_GLOBAL_HEARTBEAT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) static inline int ocfs2_mount_local(struct ocfs2_super *osb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) return ((osb->s_feature_incompat & OCFS2_FEATURE_INCOMPAT_LOCAL_MOUNT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) || (osb->s_mount_opt & OCFS2_MOUNT_NOCLUSTER));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682) static inline int ocfs2_uses_extended_slot_map(struct ocfs2_super *osb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684) return (osb->s_feature_incompat &
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) OCFS2_FEATURE_INCOMPAT_EXTENDED_SLOT_MAP);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689) #define OCFS2_IS_VALID_DINODE(ptr) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690) (!strcmp((ptr)->i_signature, OCFS2_INODE_SIGNATURE))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692) #define OCFS2_IS_VALID_EXTENT_BLOCK(ptr) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) (!strcmp((ptr)->h_signature, OCFS2_EXTENT_BLOCK_SIGNATURE))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695) #define OCFS2_IS_VALID_GROUP_DESC(ptr) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) (!strcmp((ptr)->bg_signature, OCFS2_GROUP_DESC_SIGNATURE))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699) #define OCFS2_IS_VALID_XATTR_BLOCK(ptr) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700) (!strcmp((ptr)->xb_signature, OCFS2_XATTR_BLOCK_SIGNATURE))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702) #define OCFS2_IS_VALID_DIR_TRAILER(ptr) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703) (!strcmp((ptr)->db_signature, OCFS2_DIR_TRAILER_SIGNATURE))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 704)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 705) #define OCFS2_IS_VALID_DX_ROOT(ptr) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 706) (!strcmp((ptr)->dr_signature, OCFS2_DX_ROOT_SIGNATURE))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708) #define OCFS2_IS_VALID_DX_LEAF(ptr) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709) (!strcmp((ptr)->dl_signature, OCFS2_DX_LEAF_SIGNATURE))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711) #define OCFS2_IS_VALID_REFCOUNT_BLOCK(ptr) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712) (!strcmp((ptr)->rf_signature, OCFS2_REFCOUNT_BLOCK_SIGNATURE))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714) static inline unsigned long ino_from_blkno(struct super_block *sb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715) u64 blkno)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 716) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 717) return (unsigned long)(blkno & (u64)ULONG_MAX);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 718) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 719)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720) static inline u64 ocfs2_clusters_to_blocks(struct super_block *sb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721) u32 clusters)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723) int c_to_b_bits = OCFS2_SB(sb)->s_clustersize_bits -
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724) sb->s_blocksize_bits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 725)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 726) return (u64)clusters << c_to_b_bits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 727) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 728)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 729) static inline u32 ocfs2_clusters_for_blocks(struct super_block *sb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 730) u64 blocks)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 731) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 732) int b_to_c_bits = OCFS2_SB(sb)->s_clustersize_bits -
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 733) sb->s_blocksize_bits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 734)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 735) blocks += (1 << b_to_c_bits) - 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 736) return (u32)(blocks >> b_to_c_bits);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 737) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 738)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 739) static inline u32 ocfs2_blocks_to_clusters(struct super_block *sb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 740) u64 blocks)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 741) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 742) int b_to_c_bits = OCFS2_SB(sb)->s_clustersize_bits -
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 743) sb->s_blocksize_bits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 744)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 745) return (u32)(blocks >> b_to_c_bits);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 746) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 747)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 748) static inline unsigned int ocfs2_clusters_for_bytes(struct super_block *sb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 749) u64 bytes)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 750) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 751) int cl_bits = OCFS2_SB(sb)->s_clustersize_bits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 752) unsigned int clusters;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 753)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 754) bytes += OCFS2_SB(sb)->s_clustersize - 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 755) /* OCFS2 just cannot have enough clusters to overflow this */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 756) clusters = (unsigned int)(bytes >> cl_bits);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 757)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 758) return clusters;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 759) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 760)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 761) static inline unsigned int ocfs2_bytes_to_clusters(struct super_block *sb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 762) u64 bytes)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 763) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 764) int cl_bits = OCFS2_SB(sb)->s_clustersize_bits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 765) unsigned int clusters;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 766)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 767) clusters = (unsigned int)(bytes >> cl_bits);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 768) return clusters;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 769) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 770)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 771) static inline u64 ocfs2_blocks_for_bytes(struct super_block *sb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 772) u64 bytes)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 773) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 774) bytes += sb->s_blocksize - 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 775) return bytes >> sb->s_blocksize_bits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 776) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 777)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 778) static inline u64 ocfs2_clusters_to_bytes(struct super_block *sb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 779) u32 clusters)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 780) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 781) return (u64)clusters << OCFS2_SB(sb)->s_clustersize_bits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 782) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 783)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 784) static inline u64 ocfs2_block_to_cluster_start(struct super_block *sb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 785) u64 blocks)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 786) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 787) int bits = OCFS2_SB(sb)->s_clustersize_bits - sb->s_blocksize_bits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 788) unsigned int clusters;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 789)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 790) clusters = ocfs2_blocks_to_clusters(sb, blocks);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 791) return (u64)clusters << bits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 792) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 793)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 794) static inline u64 ocfs2_align_bytes_to_clusters(struct super_block *sb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 795) u64 bytes)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 796) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 797) int cl_bits = OCFS2_SB(sb)->s_clustersize_bits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 798) unsigned int clusters;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 799)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 800) clusters = ocfs2_clusters_for_bytes(sb, bytes);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 801) return (u64)clusters << cl_bits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 802) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 803)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 804) static inline u64 ocfs2_align_bytes_to_blocks(struct super_block *sb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 805) u64 bytes)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 806) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 807) u64 blocks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 808)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 809) blocks = ocfs2_blocks_for_bytes(sb, bytes);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 810) return blocks << sb->s_blocksize_bits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 811) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 812)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 813) static inline unsigned long ocfs2_align_bytes_to_sectors(u64 bytes)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 814) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 815) return (unsigned long)((bytes + 511) >> 9);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 816) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 817)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 818) static inline unsigned int ocfs2_page_index_to_clusters(struct super_block *sb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 819) unsigned long pg_index)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 820) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 821) u32 clusters = pg_index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 822) unsigned int cbits = OCFS2_SB(sb)->s_clustersize_bits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 823)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 824) if (unlikely(PAGE_SHIFT > cbits))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 825) clusters = pg_index << (PAGE_SHIFT - cbits);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 826) else if (PAGE_SHIFT < cbits)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 827) clusters = pg_index >> (cbits - PAGE_SHIFT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 828)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 829) return clusters;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 830) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 831)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 832) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 833) * Find the 1st page index which covers the given clusters.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 834) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 835) static inline pgoff_t ocfs2_align_clusters_to_page_index(struct super_block *sb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 836) u32 clusters)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 837) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 838) unsigned int cbits = OCFS2_SB(sb)->s_clustersize_bits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 839) pgoff_t index = clusters;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 840)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 841) if (PAGE_SHIFT > cbits) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 842) index = (pgoff_t)clusters >> (PAGE_SHIFT - cbits);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 843) } else if (PAGE_SHIFT < cbits) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 844) index = (pgoff_t)clusters << (cbits - PAGE_SHIFT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 845) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 846)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 847) return index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 848) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 849)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 850) static inline unsigned int ocfs2_pages_per_cluster(struct super_block *sb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 851) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 852) unsigned int cbits = OCFS2_SB(sb)->s_clustersize_bits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 853) unsigned int pages_per_cluster = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 854)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 855) if (PAGE_SHIFT < cbits)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 856) pages_per_cluster = 1 << (cbits - PAGE_SHIFT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 857)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 858) return pages_per_cluster;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 859) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 860)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 861) static inline unsigned int ocfs2_megabytes_to_clusters(struct super_block *sb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 862) unsigned int megs)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 863) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 864) BUILD_BUG_ON(OCFS2_MAX_CLUSTERSIZE > 1048576);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 865)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 866) return megs << (20 - OCFS2_SB(sb)->s_clustersize_bits);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 867) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 868)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 869) static inline unsigned int ocfs2_clusters_to_megabytes(struct super_block *sb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 870) unsigned int clusters)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 871) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 872) return clusters >> (20 - OCFS2_SB(sb)->s_clustersize_bits);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 873) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 874)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 875) static inline void _ocfs2_set_bit(unsigned int bit, unsigned long *bitmap)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 876) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 877) __set_bit_le(bit, bitmap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 878) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 879) #define ocfs2_set_bit(bit, addr) _ocfs2_set_bit((bit), (unsigned long *)(addr))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 880)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 881) static inline void _ocfs2_clear_bit(unsigned int bit, unsigned long *bitmap)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 882) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 883) __clear_bit_le(bit, bitmap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 884) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 885) #define ocfs2_clear_bit(bit, addr) _ocfs2_clear_bit((bit), (unsigned long *)(addr))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 886)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 887) #define ocfs2_test_bit test_bit_le
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 888) #define ocfs2_find_next_zero_bit find_next_zero_bit_le
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 889) #define ocfs2_find_next_bit find_next_bit_le
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 890)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 891) static inline void *correct_addr_and_bit_unaligned(int *bit, void *addr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 892) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 893) #if BITS_PER_LONG == 64
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 894) *bit += ((unsigned long) addr & 7UL) << 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 895) addr = (void *) ((unsigned long) addr & ~7UL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 896) #elif BITS_PER_LONG == 32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 897) *bit += ((unsigned long) addr & 3UL) << 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 898) addr = (void *) ((unsigned long) addr & ~3UL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 899) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 900) #error "how many bits you are?!"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 901) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 902) return addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 903) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 904)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 905) static inline void ocfs2_set_bit_unaligned(int bit, void *bitmap)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 906) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 907) bitmap = correct_addr_and_bit_unaligned(&bit, bitmap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 908) ocfs2_set_bit(bit, bitmap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 909) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 910)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 911) static inline void ocfs2_clear_bit_unaligned(int bit, void *bitmap)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 912) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 913) bitmap = correct_addr_and_bit_unaligned(&bit, bitmap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 914) ocfs2_clear_bit(bit, bitmap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 915) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 916)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 917) static inline int ocfs2_test_bit_unaligned(int bit, void *bitmap)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 918) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 919) bitmap = correct_addr_and_bit_unaligned(&bit, bitmap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 920) return ocfs2_test_bit(bit, bitmap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 921) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 922)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 923) static inline int ocfs2_find_next_zero_bit_unaligned(void *bitmap, int max,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 924) int start)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 925) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 926) int fix = 0, ret, tmpmax;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 927) bitmap = correct_addr_and_bit_unaligned(&fix, bitmap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 928) tmpmax = max + fix;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 929) start += fix;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 930)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 931) ret = ocfs2_find_next_zero_bit(bitmap, tmpmax, start) - fix;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 932) if (ret > max)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 933) return max;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 934) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 935) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 936)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 937) #endif /* OCFS2_H */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 938)
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
3 Commits
0 Branches
0 Tags