diff options
Diffstat (limited to 'ipc/ipc_entry.c')
| -rw-r--r-- | ipc/ipc_entry.c | 21 |
1 files changed, 2 insertions, 19 deletions
diff --git a/ipc/ipc_entry.c b/ipc/ipc_entry.c index a5fe319..0414ba5 100644 --- a/ipc/ipc_entry.c +++ b/ipc/ipc_entry.c @@ -56,8 +56,7 @@ struct kmem_cache ipc_entry_cache; * Purpose: * Allocate an entry out of the space. * Conditions: - * The space is not locked before, but it is write-locked after - * if the call is successful. May allocate memory. + * The space must be write-locked. May allocate memory. * Returns: * KERN_SUCCESS An entry was allocated. * KERN_INVALID_TASK The space is dead. @@ -75,27 +74,21 @@ ipc_entry_alloc( ipc_entry_t entry; rdxtree_key_t key; - is_write_lock(space); - if (!space->is_active) { - is_write_unlock(space); return KERN_INVALID_TASK; } kr = ipc_entry_get(space, namep, entryp); if (kr == KERN_SUCCESS) - /* Success. Space is write-locked. */ return kr; entry = ie_alloc(); if (entry == IE_NULL) { - is_write_unlock(space); return KERN_RESOURCE_SHORTAGE; } kr = rdxtree_insert_alloc(&space->is_map, entry, &key); if (kr) { - is_write_unlock(space); ie_free(entry); return kr; } @@ -108,7 +101,6 @@ ipc_entry_alloc( *entryp = entry; *namep = (mach_port_t) key; - /* Success. Space is write-locked. */ return KERN_SUCCESS; } @@ -118,8 +110,7 @@ ipc_entry_alloc( * Allocates/finds an entry with a specific name. * If an existing entry is returned, its type will be nonzero. * Conditions: - * The space is not locked before, but it is write-locked after - * if the call is successful. May allocate memory. + * The space must be write-locked. May allocate memory. * Returns: * KERN_SUCCESS Found existing entry with same name. * KERN_SUCCESS Allocated a new entry. @@ -138,10 +129,7 @@ ipc_entry_alloc_name( void **slot; assert(MACH_PORT_VALID(name)); - is_write_lock(space); - if (!space->is_active) { - is_write_unlock(space); return KERN_INVALID_TASK; } @@ -152,7 +140,6 @@ ipc_entry_alloc_name( if (slot == NULL || entry == IE_NULL) { entry = ie_alloc(); if (entry == IE_NULL) { - is_write_unlock(space); return KERN_RESOURCE_SHORTAGE; } @@ -167,7 +154,6 @@ ipc_entry_alloc_name( kr = rdxtree_insert(&space->is_map, (rdxtree_key_t) name, entry); if (kr != KERN_SUCCESS) { - is_write_unlock(space); ie_free(entry); return kr; } @@ -175,14 +161,12 @@ ipc_entry_alloc_name( space->is_size += 1; *entryp = entry; - /* Success. Space is write-locked. */ return KERN_SUCCESS; } if (IE_BITS_TYPE(entry->ie_bits)) { /* Used entry. */ *entryp = entry; - /* Success. Space is write-locked. */ return KERN_SUCCESS; } @@ -202,7 +186,6 @@ ipc_entry_alloc_name( space->is_size += 1; *entryp = entry; - /* Success. Space is write-locked. */ return KERN_SUCCESS; } |