cache_inode_status_t cache_inode_kill_entry( cache_entry_t * pentry,
cache_inode_lock_how_t lock_how,
hash_table_t * ht,
cache_inode_client_t * pclient,
cache_inode_status_t * pstatus )
{
fsal_handle_t *pfsal_handle = NULL;
cache_inode_fsal_data_t fsaldata;
cache_inode_parent_entry_t *parent_iter = NULL;
cache_inode_parent_entry_t *parent_iter_next = NULL;
hash_buffer_t key, old_key;
hash_buffer_t old_value;
int rc;
fsal_status_t fsal_status;
memset( (char *)&fsaldata, 0, sizeof( fsaldata ) ) ;
LogInfo(COMPONENT_CACHE_INODE,
"Using cache_inode_kill_entry for entry %p", pentry);
/* Invalidation is not for junctions or special files */
if( ( pentry->internal_md.type == FS_JUNCTION ) ||
( pentry->internal_md.type == SOCKET_FILE ) ||
( pentry->internal_md.type == FIFO_FILE ) ||
( pentry->internal_md.type == CHARACTER_FILE ) ||
( pentry->internal_md.type == BLOCK_FILE ) )
{
free_lock( pentry, lock_how ) ;
*pstatus = CACHE_INODE_SUCCESS;
return *pstatus;
}
#if 0
/** @todo: BUGAZOMEU : directory invalidation seems quite tricky, temporarily avoid it */
if( pentry->internal_md.type == DIRECTORY )
{
free_lock( pentry, lock_how ) ;
*pstatus = CACHE_INODE_SUCCESS;
return *pstatus;
}
/** @todo: BUGAZOMEU : file invalidation seems quite tricky, temporarily avoid it */
/* We need to know how to manage how to deal with "files with states" */
if( pentry->internal_md.type == REGULAR_FILE )
{
free_lock( pentry, lock_how ) ;
*pstatus = CACHE_INODE_SUCCESS;
return *pstatus;
}
#endif
if(pstatus == NULL)
return CACHE_INODE_INVALID_ARGUMENT;
if(pentry == NULL || pclient == NULL || ht == NULL)
{
free_lock( pentry, lock_how ) ;
*pstatus = CACHE_INODE_INVALID_ARGUMENT;
return *pstatus;
}
/* Get the FSAL handle */
if((pfsal_handle = cache_inode_get_fsal_handle(pentry, pstatus)) == NULL)
{
free_lock( pentry, lock_how ) ;
LogCrit(COMPONENT_CACHE_INODE,
"cache_inode_kill_entry: unable to retrieve pentry's specific filesystem info");
return *pstatus;
}
/* Invalidate the related LRU gc entry (no more required) */
if(pentry->gc_lru_entry != NULL)
{
if(LRU_invalidate(pentry->gc_lru, pentry->gc_lru_entry) != LRU_LIST_SUCCESS)
{
free_lock( pentry, lock_how ) ;
*pstatus = CACHE_INODE_LRU_ERROR;
return *pstatus;
}
}
fsaldata.handle = *pfsal_handle;
fsaldata.cookie = DIR_START;
/* Use the handle to build the key */
if(cache_inode_fsaldata_2_key(&key, &fsaldata, pclient))
{
free_lock( pentry, lock_how ) ;
LogCrit(COMPONENT_CACHE_INODE,
"cache_inode_kill_entry: could not build hashtable key");
cache_inode_release_fsaldata_key(&key, pclient);
*pstatus = CACHE_INODE_NOT_FOUND;
return *pstatus;
}
/* use the key to delete the entry */
if((rc = HashTable_Del(ht, &key, &old_key, &old_value)) != HASHTABLE_SUCCESS)
{
if( rc != HASHTABLE_ERROR_NO_SUCH_KEY) /* rc=3 => Entry was previously removed */
LogCrit( COMPONENT_CACHE_INODE,
"cache_inode_kill_entry: entry could not be deleted, status = %d",
rc);
cache_inode_release_fsaldata_key(&key, pclient);
*pstatus = CACHE_INODE_NOT_FOUND;
return *pstatus;
}
/* Release the hash key data */
cache_inode_release_fsaldata_key(&old_key, pclient);
/* Clean up the associated ressources in the FSAL */
if(FSAL_IS_ERROR(fsal_status = FSAL_CleanObjectResources(pfsal_handle)))
{
LogCrit(COMPONENT_CACHE_INODE,
"cache_inode_kill_entry: Couldn't free FSAL ressources fsal_status.major=%u",
fsal_status.major);
}
/* Sanity check: old_value.pdata is expected to be equal to pentry,
* and is released later in this function */
if((cache_entry_t *) old_value.pdata != pentry)
{
LogCrit(COMPONENT_CACHE_INODE,
"cache_inode_kill_entry: unexpected pdata %p from hash table (pentry=%p)",
old_value.pdata, pentry);
}
/* Release the current key */
cache_inode_release_fsaldata_key(&key, pclient);
/* Recover the parent list entries */
parent_iter = pentry->parent_list;
while(parent_iter != NULL)
{
parent_iter_next = parent_iter->next_parent;
ReleaseToPool(parent_iter, &pclient->pool_parent);
parent_iter = parent_iter_next;
}
/* If entry is datacached, remove it from the cache */
if(pentry->internal_md.type == REGULAR_FILE)
{
cache_content_status_t cache_content_status;
if(pentry->object.file.pentry_content != NULL)
if(cache_content_release_entry
((cache_content_entry_t *) pentry->object.file.pentry_content,
(cache_content_client_t *) pclient->pcontent_client,
&cache_content_status) != CACHE_CONTENT_SUCCESS)
LogCrit(COMPONENT_CACHE_INODE,
"Could not removed datacached entry for pentry %p", pentry);
}
/* If entry is a DIRECTORY, invalidate dirents */
if(pentry->internal_md.type == DIRECTORY)
{
cache_inode_invalidate_related_dirents(pentry, pclient);
}
// free_lock( pentry, lock_how ) ; /* Really needed ? The pentry is unaccessible now and will be destroyed */
/* Destroy the mutex associated with the pentry */
cache_inode_mutex_destroy(pentry);
/* Put the pentry back to the pool */
ReleaseToPool(pentry, &pclient->pool_entry);
*pstatus = CACHE_INODE_SUCCESS;
return *pstatus;
} /* cache_inode_kill_entry */
/**
* cache_inode_clean_internal: remove a pentry from cache and all LRUs,
* and release related resources.
*
* @param pentry [IN] entry to be deleted from cache
* @param hash_table_t [IN] The cache hash table
* @param pclient [INOUT] ressource allocated by the client for the nfs management.
*/
cache_inode_status_t cache_inode_clean_internal(cache_entry_t * to_remove_entry,
hash_table_t * ht,
cache_inode_client_t * pclient)
{
fsal_handle_t *pfsal_handle_remove;
cache_inode_parent_entry_t *parent_iter = NULL;
cache_inode_parent_entry_t *parent_iter_next = NULL;
cache_inode_fsal_data_t fsaldata;
cache_inode_status_t status;
hash_buffer_t key, old_key, old_value;
int rc;
memset( (char *)&fsaldata, 0, sizeof( fsaldata ) ) ;
if((pfsal_handle_remove =
cache_inode_get_fsal_handle(to_remove_entry, &status)) == NULL)
{
return status;
}
/* Invalidate the related LRU gc entry (no more required) */
if(to_remove_entry->gc_lru_entry != NULL)
{
if(LRU_invalidate(to_remove_entry->gc_lru, to_remove_entry->gc_lru_entry)
!= LRU_LIST_SUCCESS)
{
return CACHE_INODE_LRU_ERROR;
}
}
/* delete the entry from the cache */
fsaldata.handle = *pfsal_handle_remove;
/* XXX always DIR_START */
fsaldata.cookie = DIR_START;
if(cache_inode_fsaldata_2_key(&key, &fsaldata, pclient))
{
return CACHE_INODE_INCONSISTENT_ENTRY;
}
/* use the key to delete the entry */
rc = HashTable_Del(ht, &key, &old_key, &old_value);
if(rc)
LogCrit(COMPONENT_CACHE_INODE,
"HashTable_Del error %d in cache_inode_clean_internal", rc);
if((rc != HASHTABLE_SUCCESS) && (rc != HASHTABLE_ERROR_NO_SUCH_KEY))
{
cache_inode_release_fsaldata_key(&key, pclient);
return CACHE_INODE_INCONSISTENT_ENTRY;
}
/* release the key that was stored in hash table */
if(rc != HASHTABLE_ERROR_NO_SUCH_KEY)
{
cache_inode_release_fsaldata_key(&old_key, pclient);
/* Sanity check: old_value.pdata is expected to be equal to pentry,
* and is released later in this function */
if((cache_entry_t *) old_value.pdata != to_remove_entry)
{
LogCrit(COMPONENT_CACHE_INODE,
"cache_inode_remove: unexpected pdata %p from hash table (pentry=%p)",
old_value.pdata, to_remove_entry);
}
}
/* release the key used for hash query */
cache_inode_release_fsaldata_key(&key, pclient);
/* Free the parent list entries */
parent_iter = to_remove_entry->parent_list;
while(parent_iter != NULL)
{
parent_iter_next = parent_iter->next_parent;
ReleaseToPool(parent_iter, &pclient->pool_parent);
parent_iter = parent_iter_next;
}
return CACHE_INODE_SUCCESS;
} /* cache_inode_clean_internal */
/**
*
* cache_inode_get: Gets an entry by using its fsdata as a key and caches it if needed.
*
* Gets an entry by using its fsdata as a key and caches it if needed.
* ASSUMPTION: DIR_CONT entries are always garbabbaged before their related DIR_BEGINNG
*
* @param fsdata [IN] file system data
* @param pattr [OUT] pointer to the attributes for the result.
* @param ht [IN] hash table used for the cache, unused in this call.
* @param pclient [INOUT] ressource allocated by the client for the nfs management.
* @param pcontext [IN] FSAL credentials
* @param pstatus [OUT] returned status.
*
* @return the pointer to the entry is successfull, NULL otherwise.
*
*/
cache_entry_t *cache_inode_get(cache_inode_fsal_data_t * pfsdata,
fsal_attrib_list_t * pattr,
hash_table_t * ht,
cache_inode_client_t * pclient,
fsal_op_context_t * pcontext,
cache_inode_status_t * pstatus)
{
hash_buffer_t key, value;
cache_entry_t *pentry = NULL;
fsal_status_t fsal_status;
cache_inode_create_arg_t create_arg;
cache_inode_file_type_t type;
int hrc = 0;
fsal_attrib_list_t fsal_attributes;
cache_inode_fsal_data_t *ppoolfsdata = NULL;
/* Set the return default to CACHE_INODE_SUCCESS */
*pstatus = CACHE_INODE_SUCCESS;
/* stats */
pclient->stat.nb_call_total += 1;
pclient->stat.func_stats.nb_call[CACHE_INODE_GET] += 1;
/* Turn the input to a hash key */
if(cache_inode_fsaldata_2_key(&key, pfsdata, pclient))
{
*pstatus = CACHE_INODE_UNAPPROPRIATED_KEY;
/* stats */
pclient->stat.func_stats.nb_err_unrecover[CACHE_INODE_GET] += 1;
ppoolfsdata = (cache_inode_fsal_data_t *) key.pdata;
RELEASE_PREALLOC(ppoolfsdata, pclient->pool_key, next_alloc);
return NULL;
}
switch (hrc = HashTable_Get(ht, &key, &value))
{
case HASHTABLE_SUCCESS:
/* Entry exists in the cache and was found */
pentry = (cache_entry_t *) value.pdata;
/* return attributes additionally */
cache_inode_get_attributes(pentry, pattr);
break;
case HASHTABLE_ERROR_NO_SUCH_KEY:
/* Cache miss, allocate a new entry */
/* If we ask for a dir cont (in this case pfsdata.cookie != FSAL_DIR_BEGINNING, we have
* a client who performs a readdir in the middle of a directory, when the direcctories
* have been garbbage. we must search for the DIR_BEGIN related to this DIR_CONT */
if(pfsdata->cookie != DIR_START)
{
/* added for sanity check */
LogDebug(COMPONENT_CACHE_INODE_GC,
"=======> Pb cache_inode_get: line %u pfsdata->cookie != DIR_START (=%u) on object whose type is %u",
__LINE__, pfsdata->cookie,
cache_inode_fsal_type_convert(fsal_attributes.type));
pfsdata->cookie = DIR_START;
/* Free this key */
cache_inode_release_fsaldata_key(&key, pclient);
/* redo the call */
return cache_inode_get(pfsdata, pattr, ht, pclient, pcontext, pstatus);
}
/* First, call FSAL to know what the object is */
fsal_attributes.asked_attributes = pclient->attrmask;
fsal_status = FSAL_getattrs(&pfsdata->handle, pcontext, &fsal_attributes);
if(FSAL_IS_ERROR(fsal_status))
{
*pstatus = cache_inode_error_convert(fsal_status);
LogDebug(COMPONENT_CACHE_INODE_GC, "cache_inode_get: line %u cache_inode_status=%u fsal_status=%u,%u ",
__LINE__, *pstatus, fsal_status.major, fsal_status.minor);
if(fsal_status.major == ERR_FSAL_STALE)
{
char handle_str[256];
snprintHandle(handle_str, 256, &pfsdata->handle);
LogEvent(COMPONENT_CACHE_INODE_GC,"cache_inode_get: Stale FSAL File Handle %s", handle_str);
*pstatus = CACHE_INODE_FSAL_ESTALE;
}
/* stats */
pclient->stat.func_stats.nb_err_unrecover[CACHE_INODE_GET] += 1;
/* Free this key */
cache_inode_release_fsaldata_key(&key, pclient);
return NULL;
}
/* The type has to be set in the attributes */
if(!FSAL_TEST_MASK(fsal_attributes.supported_attributes, FSAL_ATTR_TYPE))
{
*pstatus = CACHE_INODE_FSAL_ERROR;
/* stats */
pclient->stat.func_stats.nb_err_unrecover[CACHE_INODE_GET] += 1;
/* Free this key */
cache_inode_release_fsaldata_key(&key, pclient);
return NULL;
}
/* Get the cache_inode file type */
type = cache_inode_fsal_type_convert(fsal_attributes.type);
if(type == SYMBOLIC_LINK)
{
FSAL_CLEAR_MASK(fsal_attributes.asked_attributes);
FSAL_SET_MASK(fsal_attributes.asked_attributes, pclient->attrmask);
fsal_status =
FSAL_readlink(&pfsdata->handle, pcontext, &create_arg.link_content,
&fsal_attributes);
if(FSAL_IS_ERROR(fsal_status))
{
*pstatus = cache_inode_error_convert(fsal_status);
/* stats */
pclient->stat.func_stats.nb_err_unrecover[CACHE_INODE_GET] += 1;
/* Free this key */
cache_inode_release_fsaldata_key(&key, pclient);
if(fsal_status.major == ERR_FSAL_STALE)
{
cache_inode_status_t kill_status;
LogDebug(COMPONENT_CACHE_INODE_GC,
"cache_inode_get: Stale FSAL File Handle detected for pentry = %p",
pentry);
if(cache_inode_kill_entry(pentry, ht, pclient, &kill_status) !=
CACHE_INODE_SUCCESS)
LogCrit(COMPONENT_CACHE_INODE_GC,"cache_inode_get: Could not kill entry %p, status = %u",
pentry, kill_status);
*pstatus = CACHE_INODE_FSAL_ESTALE;
}
return NULL;
}
}
/* Add the entry to the cache */
if((pentry = cache_inode_new_entry(pfsdata, &fsal_attributes, type, &create_arg, NULL, /* never used to add a new DIR_CONTINUE within the scope of this function */
ht, pclient, pcontext, FALSE, /* This is a population, not a creation */
pstatus)) == NULL)
{
/* stats */
pclient->stat.func_stats.nb_err_unrecover[CACHE_INODE_GET] += 1;
/* Free this key */
cache_inode_release_fsaldata_key(&key, pclient);
return NULL;
}
/* Set the returned attributes */
*pattr = fsal_attributes;
/* Now, exit the switch/case and returns */
break;
default:
/* This should not happened */
*pstatus = CACHE_INODE_INVALID_ARGUMENT;
/* stats */
pclient->stat.func_stats.nb_err_unrecover[CACHE_INODE_GET] += 1;
/* Free this key */
cache_inode_release_fsaldata_key(&key, pclient);
return NULL;
break;
}
*pstatus = CACHE_INODE_SUCCESS;
/* valid the found entry, if this is not feasable, returns nothing to the client */
P_w(&pentry->lock);
if((*pstatus =
cache_inode_valid(pentry, CACHE_INODE_OP_GET, pclient)) != CACHE_INODE_SUCCESS)
{
V_w(&pentry->lock);
pentry = NULL;
}
V_w(&pentry->lock);
/* stats */
pclient->stat.func_stats.nb_success[CACHE_INODE_GET] += 1;
/* Free this key */
cache_inode_release_fsaldata_key(&key, pclient);
return pentry;
} /* cache_inode_get */
/**
*
* cache_inode_gc_clean_entry: cleans a entry in the cache_inode.
*
* cleans an entry in the cache_inode.
*
* @param pentry [INOUT] entry to be cleaned.
* @param addparam [IN] additional parameter used for cleaning.
*
* @return LRU_LIST_SET_INVALID if ok, LRU_LIST_DO_NOT_SET_INVALID otherwise
*
*/
static int cache_inode_gc_clean_entry(cache_entry_t * pentry,
cache_inode_param_gc_t * pgcparam)
{
fsal_handle_t *pfsal_handle = NULL;
cache_inode_parent_entry_t *parent_iter = NULL;
cache_inode_parent_entry_t *parent_iter_next = NULL;
cache_inode_fsal_data_t fsaldata;
cache_inode_status_t status;
fsal_status_t fsal_status;
hash_buffer_t key, old_key, old_value;
int rc;
LogFullDebug(COMPONENT_CACHE_INODE_GC,
"(pthread_self=%p): About to remove pentry=%p, type=%d",
(caddr_t)pthread_self(),
pentry, pentry->internal_md.type);
/* sanity check */
if((pentry->gc_lru_entry != NULL) &&
((cache_entry_t *) pentry->gc_lru_entry->buffdata.pdata) != pentry)
{
LogCrit(COMPONENT_CACHE_INODE_GC,
"cache_inode_gc_clean_entry: LRU entry pointed by this pentry doesn't match the GC LRU");
}
/* Get the FSAL handle */
if((pfsal_handle = cache_inode_get_fsal_handle(pentry, &status)) == NULL)
{
LogCrit(COMPONENT_CACHE_INODE_GC,
"cache_inode_gc_clean_entry: unable to retrieve pentry's specific filesystem info");
return LRU_LIST_DO_NOT_SET_INVALID;
}
fsaldata.handle = *pfsal_handle;
if(pentry->internal_md.type != DIR_CONTINUE)
fsaldata.cookie = DIR_START;
else
fsaldata.cookie = pentry->object.dir_cont.dir_cont_pos;
/* Use the handle to build the key */
if(cache_inode_fsaldata_2_key(&key, &fsaldata, pgcparam->pclient))
{
LogCrit(COMPONENT_CACHE_INODE_GC,
"cache_inode_gc_clean_entry: could not build hashtable key");
cache_inode_release_fsaldata_key(&key, pgcparam->pclient);
return LRU_LIST_DO_NOT_SET_INVALID;
}
/* use the key to delete the entry */
rc = HashTable_Del(pgcparam->ht, &key, &old_key, &old_value);
if((rc != HASHTABLE_SUCCESS) && (rc != HASHTABLE_ERROR_NO_SUCH_KEY))
{
LogCrit(COMPONENT_CACHE_INODE_GC,
"cache_inode_gc_clean_entry: entry could not be deleted, status = %d",
rc);
cache_inode_release_fsaldata_key(&key, pgcparam->pclient);
return LRU_LIST_DO_NOT_SET_INVALID;
}
else if(rc == HASHTABLE_ERROR_NO_SUCH_KEY)
{
LogEvent(COMPONENT_CACHE_INODE_GC,
"cache_inode_gc_clean_entry: entry already deleted, type=%d, status=%d",
pentry->internal_md.type, rc);
cache_inode_release_fsaldata_key(&key, pgcparam->pclient);
return LRU_LIST_SET_INVALID;
}
/* Clean up the associated ressources in the FSAL */
if(FSAL_IS_ERROR(fsal_status = FSAL_CleanObjectResources(pfsal_handle)))
{
LogCrit(COMPONENT_CACHE_INODE_GC,
"cache_inode_gc_clean_entry: Could'nt free FSAL ressources fsal_status.major=%u",
fsal_status.major);
}
LogFullDebug(COMPONENT_CACHE_INODE_GC,
"++++> pentry %p deleted from HashTable", pentry);
/* Release the hash key data */
cache_inode_release_fsaldata_key(&old_key, pgcparam->pclient);
/* Sanity check: old_value.pdata is expected to be equal to pentry,
* and is released later in this function */
if((cache_entry_t *) old_value.pdata != pentry)
{
LogCrit(COMPONENT_CACHE_INODE_GC,
"cache_inode_gc_clean_entry: unexpected pdata %p from hash table (pentry=%p)",
old_value.pdata, pentry);
}
cache_inode_release_fsaldata_key(&key, pgcparam->pclient);
/* Recover the parent list entries */
parent_iter = pentry->parent_list;
while(parent_iter != NULL)
{
parent_iter_next = parent_iter->next_parent;
ReleaseToPool(parent_iter, &pgcparam->pclient->pool_parent);
parent_iter = parent_iter_next;
}
LogFullDebug(COMPONENT_CACHE_INODE_GC,
"++++> parent directory sent back to pool");
/* If entry is a DIR_CONTINUE or a DIR_BEGINNING, release pdir_data */
if(pentry->internal_md.type == DIR_BEGINNING)
{
/* Put the pentry back to the pool */
ReleaseToPool(pentry->object.dir_begin.pdir_data, &pgcparam->pclient->pool_dir_data);
}
if(pentry->internal_md.type == DIR_CONTINUE)
{
/* Put the pentry back to the pool */
ReleaseToPool(pentry->object.dir_cont.pdir_data, &pgcparam->pclient->pool_dir_data);
}
LogFullDebug(COMPONENT_CACHE_INODE_GC,
"++++> pdir_data (if needed) sent back to pool");
#ifdef _USE_NFS4_ACL
/* If entry has NFS4 ACL, release it. */
cache_inode_gc_acl(pentry);
#endif /* _USE_NFS4_ACL */
/* Free and Destroy the mutex associated with the pentry */
V_w(&pentry->lock);
cache_inode_mutex_destroy(pentry);
/* Put the pentry back to the pool */
ReleaseToPool(pentry, &pgcparam->pclient->pool_entry);
/* Regular exit */
pgcparam->nb_to_be_purged = pgcparam->nb_to_be_purged - 1;
LogFullDebug(COMPONENT_CACHE_INODE_GC,
"++++> pentry %p: clean entry is ok", pentry);
return LRU_LIST_SET_INVALID; /* Cleaning ok */
}
cache_entry_t *cache_inode_get_located(cache_inode_fsal_data_t * pfsdata,
cache_entry_t * plocation,
cache_inode_policy_t policy,
fsal_attrib_list_t * pattr,
hash_table_t * ht,
cache_inode_client_t * pclient,
fsal_op_context_t * pcontext,
cache_inode_status_t * pstatus)
{
hash_buffer_t key, value;
cache_entry_t *pentry = NULL;
fsal_status_t fsal_status;
cache_inode_create_arg_t create_arg;
cache_inode_file_type_t type;
int hrc = 0;
fsal_attrib_list_t fsal_attributes;
cache_inode_fsal_data_t *ppoolfsdata = NULL;
memset(&create_arg, 0, sizeof(create_arg));
/* Set the return default to CACHE_INODE_SUCCESS */
*pstatus = CACHE_INODE_SUCCESS;
/* stats */
/* cache_invalidate calls this with no context or client */
if (pclient) {
pclient->stat.nb_call_total += 1;
pclient->stat.func_stats.nb_call[CACHE_INODE_GET] += 1;
}
/* Turn the input to a hash key */
if(cache_inode_fsaldata_2_key(&key, pfsdata, pclient))
{
*pstatus = CACHE_INODE_UNAPPROPRIATED_KEY;
/* stats */
/* cache_invalidate calls this with no context or client */
if (pclient) {
pclient->stat.func_stats.nb_err_unrecover[CACHE_INODE_GET] += 1;
ppoolfsdata = (cache_inode_fsal_data_t *) key.pdata;
ReleaseToPool(ppoolfsdata, &pclient->pool_key);
}
return NULL;
}
switch (hrc = HashTable_Get(ht, &key, &value))
{
case HASHTABLE_SUCCESS:
/* Entry exists in the cache and was found */
pentry = (cache_entry_t *) value.pdata;
/* return attributes additionally */
*pattr = pentry->attributes;
if ( !pclient ) {
/* invalidate. Just return it to mark it stale and go on. */
return( pentry );
}
break;
case HASHTABLE_ERROR_NO_SUCH_KEY:
if ( !pclient ) {
/* invalidate. Just return */
return( NULL );
}
/* Cache miss, allocate a new entry */
/* XXX I do not think this can happen with avl dirent cache */
if(pfsdata->cookie != DIR_START)
{
/* added for sanity check */
LogDebug(COMPONENT_CACHE_INODE,
"cache_inode_get: pfsdata->cookie != DIR_START (=%"PRIu64") on object whose type is %u",
pfsdata->cookie,
cache_inode_fsal_type_convert(fsal_attributes.type));
pfsdata->cookie = DIR_START;
/* Free this key */
cache_inode_release_fsaldata_key(&key, pclient);
/* redo the call */
return cache_inode_get(pfsdata, policy, pattr, ht, pclient, pcontext, pstatus);
}
/* First, call FSAL to know what the object is */
fsal_attributes.asked_attributes = pclient->attrmask;
fsal_status = FSAL_getattrs(&pfsdata->handle, pcontext, &fsal_attributes);
if(FSAL_IS_ERROR(fsal_status))
{
*pstatus = cache_inode_error_convert(fsal_status);
LogDebug(COMPONENT_CACHE_INODE,
"cache_inode_get: cache_inode_status=%u fsal_status=%u,%u ",
*pstatus, fsal_status.major, fsal_status.minor);
if(fsal_status.major == ERR_FSAL_STALE)
{
char handle_str[256];
snprintHandle(handle_str, 256, &pfsdata->handle);
LogEvent(COMPONENT_CACHE_INODE,
"cache_inode_get: Stale FSAL File Handle %s, fsal_status=(%u,%u)",
handle_str, fsal_status.major, fsal_status.minor);
*pstatus = CACHE_INODE_FSAL_ESTALE;
}
/* stats */
pclient->stat.func_stats.nb_err_unrecover[CACHE_INODE_GET] += 1;
/* Free this key */
cache_inode_release_fsaldata_key(&key, pclient);
return NULL;
}
/* The type has to be set in the attributes */
if(!FSAL_TEST_MASK(fsal_attributes.supported_attributes, FSAL_ATTR_TYPE))
{
*pstatus = CACHE_INODE_FSAL_ERROR;
/* stats */
pclient->stat.func_stats.nb_err_unrecover[CACHE_INODE_GET] += 1;
/* Free this key */
cache_inode_release_fsaldata_key(&key, pclient);
return NULL;
}
/* Get the cache_inode file type */
type = cache_inode_fsal_type_convert(fsal_attributes.type);
if(type == SYMBOLIC_LINK)
{
if( CACHE_INODE_KEEP_CONTENT( policy ) )
{
FSAL_CLEAR_MASK(fsal_attributes.asked_attributes);
FSAL_SET_MASK(fsal_attributes.asked_attributes, pclient->attrmask);
fsal_status =
FSAL_readlink(&pfsdata->handle, pcontext, &create_arg.link_content,
&fsal_attributes);
}
else
{
fsal_status.major = ERR_FSAL_NO_ERROR ;
fsal_status.minor = 0 ;
}
if(FSAL_IS_ERROR(fsal_status))
{
*pstatus = cache_inode_error_convert(fsal_status);
/* stats */
pclient->stat.func_stats.nb_err_unrecover[CACHE_INODE_GET] += 1;
/* Free this key */
cache_inode_release_fsaldata_key(&key, pclient);
if(fsal_status.major == ERR_FSAL_STALE)
{
cache_inode_status_t kill_status;
LogEvent(COMPONENT_CACHE_INODE,
"cache_inode_get: Stale FSAL File Handle detected for pentry = %p, fsal_status=(%u,%u)",
pentry, fsal_status.major, fsal_status.minor);
if(cache_inode_kill_entry(pentry, NO_LOCK, ht, pclient, &kill_status) !=
CACHE_INODE_SUCCESS)
LogCrit(COMPONENT_CACHE_INODE,
"cache_inode_get: Could not kill entry %p, status = %u, fsal_status=(%u,%u)",
pentry, kill_status, fsal_status.major, fsal_status.minor);
*pstatus = CACHE_INODE_FSAL_ESTALE;
}
return NULL;
}
}
/* Add the entry to the cache */
if ( type == 1)
LogCrit(COMPONENT_CACHE_INODE,"inode get");
if((pentry = cache_inode_new_entry( pfsdata,
&fsal_attributes,
type,
policy,
&create_arg,
NULL, /* never used to add a new DIR_CONTINUE within this function */
ht,
pclient,
pcontext,
FALSE, /* This is a population, not a creation */
pstatus ) ) == NULL )
{
/* stats */
pclient->stat.func_stats.nb_err_unrecover[CACHE_INODE_GET] += 1;
/* Free this key */
cache_inode_release_fsaldata_key(&key, pclient);
return NULL;
}
/* Set the returned attributes */
*pattr = fsal_attributes;
/* Now, exit the switch/case and returns */
break;
default:
/* This should not happened */
*pstatus = CACHE_INODE_INVALID_ARGUMENT;
LogCrit(COMPONENT_CACHE_INODE,
"cache_inode_get returning CACHE_INODE_INVALID_ARGUMENT - this should not have happened");
if ( !pclient ) {
/* invalidate. Just return */
return( NULL );
}
/* stats */
pclient->stat.func_stats.nb_err_unrecover[CACHE_INODE_GET] += 1;
/* Free this key */
cache_inode_release_fsaldata_key(&key, pclient);
return NULL;
break;
}
/* Want to ASSERT pclient at this point */
*pstatus = CACHE_INODE_SUCCESS;
if (pentry->object.symlink != NULL) {
int stop_here;
stop_here = 1;
if (stop_here) {
stop_here = 2;
}
}
/* valid the found entry, if this is not feasable, returns nothing to the client */
if( plocation != NULL )
{
if( plocation != pentry )
{
P_w(&pentry->lock);
if((*pstatus =
cache_inode_valid(pentry, CACHE_INODE_OP_GET, pclient)) != CACHE_INODE_SUCCESS)
{
V_w(&pentry->lock);
pentry = NULL;
}
V_w(&pentry->lock);
}
}
/* stats */
pclient->stat.func_stats.nb_success[CACHE_INODE_GET] += 1;
/* Free this key */
cache_inode_release_fsaldata_key(&key, pclient);
return pentry;
} /* cache_inode_get_located */
