summaryrefslogtreecommitdiff
path: root/fs/afs/volume.h
diff options
context:
space:
mode:
Diffstat (limited to 'fs/afs/volume.h')
-rw-r--r--fs/afs/volume.h126
1 files changed, 0 insertions, 126 deletions
diff --git a/fs/afs/volume.h b/fs/afs/volume.h
deleted file mode 100644
index a605bea2e3a0..000000000000
--- a/fs/afs/volume.h
+++ /dev/null
@@ -1,126 +0,0 @@
-/* AFS volume management
- *
- * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#ifndef AFS_VOLUME_H
-#define AFS_VOLUME_H
-
-#include "types.h"
-#include "fsclient.h"
-#include "kafstimod.h"
-#include "kafsasyncd.h"
-#include "cache.h"
-
-typedef enum {
- AFS_VLUPD_SLEEP, /* sleeping waiting for update timer to fire */
- AFS_VLUPD_PENDING, /* on pending queue */
- AFS_VLUPD_INPROGRESS, /* op in progress */
- AFS_VLUPD_BUSYSLEEP, /* sleeping because server returned EBUSY */
-} __attribute__((packed)) afs_vlocation_upd_t;
-
-/*
- * entry in the cached volume location catalogue
- */
-struct afs_cache_vlocation {
- uint8_t name[64]; /* volume name (lowercase, padded with NULs) */
- uint8_t nservers; /* number of entries used in servers[] */
- uint8_t vidmask; /* voltype mask for vid[] */
- uint8_t srvtmask[8]; /* voltype masks for servers[] */
-#define AFS_VOL_VTM_RW 0x01 /* R/W version of the volume is available (on this server) */
-#define AFS_VOL_VTM_RO 0x02 /* R/O version of the volume is available (on this server) */
-#define AFS_VOL_VTM_BAK 0x04 /* backup version of the volume is available (on this server) */
-
- afs_volid_t vid[3]; /* volume IDs for R/W, R/O and Bak volumes */
- struct in_addr servers[8]; /* fileserver addresses */
- time_t rtime; /* last retrieval time */
-};
-
-#ifdef AFS_CACHING_SUPPORT
-extern struct cachefs_index_def afs_vlocation_cache_index_def;
-#endif
-
-/*
- * volume -> vnode hash table entry
- */
-struct afs_cache_vhash {
- afs_voltype_t vtype; /* which volume variation */
- uint8_t hash_bucket; /* which hash bucket this represents */
-} __attribute__((packed));
-
-#ifdef AFS_CACHING_SUPPORT
-extern struct cachefs_index_def afs_volume_cache_index_def;
-#endif
-
-/*
- * AFS volume location record
- */
-struct afs_vlocation {
- atomic_t usage;
- struct list_head link; /* link in cell volume location list */
- struct afs_timer timeout; /* decaching timer */
- struct afs_cell *cell; /* cell to which volume belongs */
-#ifdef AFS_CACHING_SUPPORT
- struct cachefs_cookie *cache; /* caching cookie */
-#endif
- struct afs_cache_vlocation vldb; /* volume information DB record */
- struct afs_volume *vols[3]; /* volume access record pointer (index by type) */
- rwlock_t lock; /* access lock */
- unsigned long read_jif; /* time at which last read from vlserver */
- struct afs_timer upd_timer; /* update timer */
- struct afs_async_op upd_op; /* update operation */
- afs_vlocation_upd_t upd_state; /* update state */
- unsigned short upd_first_svix; /* first server index during update */
- unsigned short upd_curr_svix; /* current server index during update */
- unsigned short upd_rej_cnt; /* ENOMEDIUM count during update */
- unsigned short upd_busy_cnt; /* EBUSY count during update */
- unsigned short valid; /* T if valid */
-};
-
-extern int afs_vlocation_lookup(struct afs_cell *, const char *, unsigned,
- struct afs_vlocation **);
-
-#define afs_get_vlocation(V) do { atomic_inc(&(V)->usage); } while(0)
-
-extern void afs_put_vlocation(struct afs_vlocation *);
-extern void afs_vlocation_do_timeout(struct afs_vlocation *);
-
-/*
- * AFS volume access record
- */
-struct afs_volume {
- atomic_t usage;
- struct afs_cell *cell; /* cell to which belongs (unrefd ptr) */
- struct afs_vlocation *vlocation; /* volume location */
-#ifdef AFS_CACHING_SUPPORT
- struct cachefs_cookie *cache; /* caching cookie */
-#endif
- afs_volid_t vid; /* volume ID */
- afs_voltype_t type; /* type of volume */
- char type_force; /* force volume type (suppress R/O -> R/W) */
- unsigned short nservers; /* number of server slots filled */
- unsigned short rjservers; /* number of servers discarded due to -ENOMEDIUM */
- struct afs_server *servers[8]; /* servers on which volume resides (ordered) */
- struct rw_semaphore server_sem; /* lock for accessing current server */
-};
-
-extern int afs_volume_lookup(const char *, struct afs_cell *, int,
- struct afs_volume **);
-
-#define afs_get_volume(V) do { atomic_inc(&(V)->usage); } while(0)
-
-extern void afs_put_volume(struct afs_volume *);
-
-extern int afs_volume_pick_fileserver(struct afs_volume *,
- struct afs_server **);
-
-extern int afs_volume_release_fileserver(struct afs_volume *,
- struct afs_server *, int);
-
-#endif /* AFS_VOLUME_H */