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[AF_RXRPC]: Make the in-kernel AFS filesystem use AF_RXRPC.
Make the in-kernel AFS filesystem use AF_RXRPC instead of the old RxRPC code. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David Howells
committed by
David S. Miller
David S. Miller
parent
651350d10f
commit
08e0e7c82e
256
fs/afs/cache.c
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256
fs/afs/cache.c
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/* AFS caching stuff
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*
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* Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
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* Written by David Howells (dhowells@redhat.com)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#ifdef AFS_CACHING_SUPPORT
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static cachefs_match_val_t afs_cell_cache_match(void *target,
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const void *entry);
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static void afs_cell_cache_update(void *source, void *entry);
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struct cachefs_index_def afs_cache_cell_index_def = {
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.name = "cell_ix",
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.data_size = sizeof(struct afs_cache_cell),
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.keys[0] = { CACHEFS_INDEX_KEYS_ASCIIZ, 64 },
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.match = afs_cell_cache_match,
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.update = afs_cell_cache_update,
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};
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#endif
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/*
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* match a cell record obtained from the cache
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*/
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#ifdef AFS_CACHING_SUPPORT
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static cachefs_match_val_t afs_cell_cache_match(void *target,
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const void *entry)
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{
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const struct afs_cache_cell *ccell = entry;
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struct afs_cell *cell = target;
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_enter("{%s},{%s}", ccell->name, cell->name);
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if (strncmp(ccell->name, cell->name, sizeof(ccell->name)) == 0) {
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_leave(" = SUCCESS");
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return CACHEFS_MATCH_SUCCESS;
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}
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_leave(" = FAILED");
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return CACHEFS_MATCH_FAILED;
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}
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#endif
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/*
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* update a cell record in the cache
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*/
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#ifdef AFS_CACHING_SUPPORT
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static void afs_cell_cache_update(void *source, void *entry)
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{
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struct afs_cache_cell *ccell = entry;
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struct afs_cell *cell = source;
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_enter("%p,%p", source, entry);
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strncpy(ccell->name, cell->name, sizeof(ccell->name));
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memcpy(ccell->vl_servers,
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cell->vl_addrs,
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min(sizeof(ccell->vl_servers), sizeof(cell->vl_addrs)));
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}
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#endif
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#ifdef AFS_CACHING_SUPPORT
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static cachefs_match_val_t afs_vlocation_cache_match(void *target,
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const void *entry);
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static void afs_vlocation_cache_update(void *source, void *entry);
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struct cachefs_index_def afs_vlocation_cache_index_def = {
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.name = "vldb",
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.data_size = sizeof(struct afs_cache_vlocation),
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.keys[0] = { CACHEFS_INDEX_KEYS_ASCIIZ, 64 },
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.match = afs_vlocation_cache_match,
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.update = afs_vlocation_cache_update,
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};
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#endif
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/*
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* match a VLDB record stored in the cache
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* - may also load target from entry
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*/
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#ifdef AFS_CACHING_SUPPORT
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static cachefs_match_val_t afs_vlocation_cache_match(void *target,
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const void *entry)
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{
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const struct afs_cache_vlocation *vldb = entry;
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struct afs_vlocation *vlocation = target;
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_enter("{%s},{%s}", vlocation->vldb.name, vldb->name);
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if (strncmp(vlocation->vldb.name, vldb->name, sizeof(vldb->name)) == 0
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) {
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if (!vlocation->valid ||
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vlocation->vldb.rtime == vldb->rtime
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) {
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vlocation->vldb = *vldb;
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vlocation->valid = 1;
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_leave(" = SUCCESS [c->m]");
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return CACHEFS_MATCH_SUCCESS;
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} else if (memcmp(&vlocation->vldb, vldb, sizeof(*vldb)) != 0) {
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/* delete if VIDs for this name differ */
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if (memcmp(&vlocation->vldb.vid,
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&vldb->vid,
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sizeof(vldb->vid)) != 0) {
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_leave(" = DELETE");
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return CACHEFS_MATCH_SUCCESS_DELETE;
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}
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_leave(" = UPDATE");
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return CACHEFS_MATCH_SUCCESS_UPDATE;
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} else {
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_leave(" = SUCCESS");
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return CACHEFS_MATCH_SUCCESS;
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}
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}
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_leave(" = FAILED");
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return CACHEFS_MATCH_FAILED;
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}
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#endif
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/*
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* update a VLDB record stored in the cache
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*/
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#ifdef AFS_CACHING_SUPPORT
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static void afs_vlocation_cache_update(void *source, void *entry)
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{
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struct afs_cache_vlocation *vldb = entry;
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struct afs_vlocation *vlocation = source;
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_enter("");
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*vldb = vlocation->vldb;
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}
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#endif
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#ifdef AFS_CACHING_SUPPORT
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static cachefs_match_val_t afs_volume_cache_match(void *target,
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const void *entry);
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static void afs_volume_cache_update(void *source, void *entry);
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struct cachefs_index_def afs_volume_cache_index_def = {
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.name = "volume",
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.data_size = sizeof(struct afs_cache_vhash),
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.keys[0] = { CACHEFS_INDEX_KEYS_BIN, 1 },
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.keys[1] = { CACHEFS_INDEX_KEYS_BIN, 1 },
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.match = afs_volume_cache_match,
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.update = afs_volume_cache_update,
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};
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#endif
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/*
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* match a volume hash record stored in the cache
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*/
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#ifdef AFS_CACHING_SUPPORT
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static cachefs_match_val_t afs_volume_cache_match(void *target,
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const void *entry)
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{
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const struct afs_cache_vhash *vhash = entry;
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struct afs_volume *volume = target;
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_enter("{%u},{%u}", volume->type, vhash->vtype);
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if (volume->type == vhash->vtype) {
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_leave(" = SUCCESS");
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return CACHEFS_MATCH_SUCCESS;
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}
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_leave(" = FAILED");
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return CACHEFS_MATCH_FAILED;
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}
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#endif
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/*
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* update a volume hash record stored in the cache
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*/
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#ifdef AFS_CACHING_SUPPORT
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static void afs_volume_cache_update(void *source, void *entry)
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{
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struct afs_cache_vhash *vhash = entry;
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struct afs_volume *volume = source;
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_enter("");
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vhash->vtype = volume->type;
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}
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#endif
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#ifdef AFS_CACHING_SUPPORT
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static cachefs_match_val_t afs_vnode_cache_match(void *target,
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const void *entry);
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static void afs_vnode_cache_update(void *source, void *entry);
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struct cachefs_index_def afs_vnode_cache_index_def = {
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.name = "vnode",
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.data_size = sizeof(struct afs_cache_vnode),
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.keys[0] = { CACHEFS_INDEX_KEYS_BIN, 4 },
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.match = afs_vnode_cache_match,
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.update = afs_vnode_cache_update,
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};
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#endif
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/*
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* match a vnode record stored in the cache
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*/
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#ifdef AFS_CACHING_SUPPORT
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static cachefs_match_val_t afs_vnode_cache_match(void *target,
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const void *entry)
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{
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const struct afs_cache_vnode *cvnode = entry;
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struct afs_vnode *vnode = target;
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_enter("{%x,%x,%Lx},{%x,%x,%Lx}",
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vnode->fid.vnode,
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vnode->fid.unique,
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vnode->status.version,
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cvnode->vnode_id,
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cvnode->vnode_unique,
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cvnode->data_version);
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if (vnode->fid.vnode != cvnode->vnode_id) {
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_leave(" = FAILED");
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return CACHEFS_MATCH_FAILED;
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}
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if (vnode->fid.unique != cvnode->vnode_unique ||
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vnode->status.version != cvnode->data_version) {
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_leave(" = DELETE");
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return CACHEFS_MATCH_SUCCESS_DELETE;
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}
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_leave(" = SUCCESS");
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return CACHEFS_MATCH_SUCCESS;
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}
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#endif
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/*
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* update a vnode record stored in the cache
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*/
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#ifdef AFS_CACHING_SUPPORT
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static void afs_vnode_cache_update(void *source, void *entry)
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{
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struct afs_cache_vnode *cvnode = entry;
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struct afs_vnode *vnode = source;
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_enter("");
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cvnode->vnode_id = vnode->fid.vnode;
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cvnode->vnode_unique = vnode->fid.unique;
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cvnode->data_version = vnode->status.version;
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}
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#endif
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