sk_memory_allocated_sub identifier - Linux source code next-20260811

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linux

Versions

FIXME
- FIXME
  - next-20260811

Defined in 1 files as a function:

include/net/proto_memory.h, line 76 (as a function)

Referenced in 1 files:

net/core/sock.c

Smatch caller information:

net/core/sock.c __sk_mem_raise_allocated() -> sk_memory_allocated_sub()

Type	Parameter	Key	Value
PARAM_VALUE	0	sk	4096-ptr_max
PARAM_VALUE	0	sk->__sk_common.skc_prot	4096-ptr_max
PARAM_VALUE	0	sk->__sk_common.skc_prot->per_cpu_fw_alloc	4096-ptr_max
PARAM_VALUE	1	val	1-524288
BUF_SIZE	0	sk	(-1),1-s32max
BUF_SIZE	0	sk	(-1),1-s32max
BUF_SIZE	0	sk->__sk_common.skc_prot	(-1),448
BUF_SIZE	0	sk->sk_user_data	(-1),368
CAPPED_DATA	1	val	1
DATA_SOURCE	0	sk	$0
DATA_SOURCE	1	val	$2
STR_LEN	0	sk	(-1),21,33
STR_LEN	0	sk	(-1),21,33
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HOST_DATA	0	sk->sk_receive_queue.prev->csum_offset	0-u16max
HOST_DATA	0	sk->sk_receive_queue.prev->data_len	0-u32max[c]
HOST_DATA	0	sk->sk_receive_queue.prev->next->csum_offset	0-u16max
HOST_DATA	0	sk->sk_receive_queue.prev->next->data_len	0-u32max[c]
NO_OVERFLOW_SIMPLE	0	sk->sk_backlog.head->end
NO_OVERFLOW_SIMPLE	0	sk->sk_backlog.head->len
NO_OVERFLOW_SIMPLE	0	sk->sk_backlog.head->tail
NO_OVERFLOW_SIMPLE	0	sk->sk_backlog.head->truesize
NO_OVERFLOW_SIMPLE	0	sk->sk_backlog.len
NO_OVERFLOW_SIMPLE	0	sk->sk_backlog.tail->end
NO_OVERFLOW_SIMPLE	0	sk->sk_backlog.tail->len
NO_OVERFLOW_SIMPLE	0	sk->sk_backlog.tail->next->end
NO_OVERFLOW_SIMPLE	0	sk->sk_backlog.tail->next->len
NO_OVERFLOW_SIMPLE	0	sk->sk_backlog.tail->next->tail
NO_OVERFLOW_SIMPLE	0	sk->sk_backlog.tail->next->truesize
NO_OVERFLOW_SIMPLE	0	sk->sk_backlog.tail->tail
NO_OVERFLOW_SIMPLE	0	sk->sk_backlog.tail->truesize
NO_OVERFLOW_SIMPLE	0	sk->sk_prot_creator->twsk_prot->twsk_slab->sheaf_capacity
NO_OVERFLOW_SIMPLE	0	sk->sk_receive_queue.prev->end
NO_OVERFLOW_SIMPLE	0	sk->sk_receive_queue.prev->len
NO_OVERFLOW_SIMPLE	0	sk->sk_receive_queue.prev->next->end
NO_OVERFLOW_SIMPLE	0	sk->sk_receive_queue.prev->next->len
NO_OVERFLOW_SIMPLE	0	sk->sk_receive_queue.prev->next->tail
NO_OVERFLOW_SIMPLE	0	sk->sk_receive_queue.prev->next->truesize
NO_OVERFLOW_SIMPLE	0	sk->sk_receive_queue.prev->tail
NO_OVERFLOW_SIMPLE	0	sk->sk_receive_queue.prev->truesize
NO_OVERFLOW_SIMPLE	0	sk->sk_write_queue.next->end
NO_OVERFLOW_SIMPLE	0	sk->sk_write_queue.next->len
NO_OVERFLOW_SIMPLE	0	sk->sk_write_queue.next->prev->end
NO_OVERFLOW_SIMPLE	0	sk->sk_write_queue.next->prev->len
NO_OVERFLOW_SIMPLE	0	sk->sk_write_queue.next->prev->tail
NO_OVERFLOW_SIMPLE	0	sk->sk_write_queue.next->prev->truesize
NO_OVERFLOW_SIMPLE	0	sk->sk_write_queue.next->tail
NO_OVERFLOW_SIMPLE	0	sk->sk_write_queue.next->truesize
NO_OVERFLOW_SIMPLE	0	sk->sk_write_queue.prev->data_len
NO_OVERFLOW_SIMPLE	0	sk->sk_write_queue.prev->len
NO_OVERFLOW_SIMPLE	0	sk->sk_write_queue.prev->next->data_len
NO_OVERFLOW_SIMPLE	0	sk->sk_write_queue.prev->next->len
NO_OVERFLOW_SIMPLE	0	sk->sk_write_queue.prev->next->truesize
NO_OVERFLOW_SIMPLE	0	sk->sk_write_queue.prev->truesize
UNITS	0	sk	unit_byte
UNITS	1	val	unit_page
HALF_LOCKED2		&kcm->tx_mutex
HALF_LOCKED2		&list->lock
HALF_LOCKED2		&pool->lock
HALF_LOCKED2		&psock->work_mutex
HALF_LOCKED2	0	sk
HALF_LOCKED2	0	&sk->sk_lock.slock

net/core/sock.c __sk_mem_reduce_allocated() -> sk_memory_allocated_sub()

Type	Parameter	Key	Value
PARAM_VALUE	0	sk	4096-ptr_max
PARAM_VALUE	1	val	1-1048575
BUF_SIZE	0	sk	(-1),16,24,32,40,56,88,96,120,160,248,568,672,1040,1080,1216
BUF_SIZE	0	sk	(-1),16,24,32,40,56,88,96,120,160,248,568,672,1040,1080,1216
BUF_SIZE	0	sk->__sk_common.skc_net.net	(-1),1-s32max
BUF_SIZE	0	sk->__sk_common.skc_prot	(-1),448
BUF_SIZE	0	sk->sk_prot_creator	(-1),448
BUF_SIZE	0	sk->sk_user_data	(-1),1-259,368
DATA_SOURCE	0	sk	$0
DATA_SOURCE	1	val	$1
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HOST_DATA	0	sk->sk_receive_queue.prev->csum_offset	0-u16max
HOST_DATA	0	sk->sk_receive_queue.prev->data_len	0-u32max[c]
HOST_DATA	0	sk->sk_receive_queue.prev->len	0-241,4294901762-u32max[c]
HOST_DATA	0	sk->sk_receive_queue.prev->next->csum_offset	0-u16max
HOST_DATA	0	sk->sk_receive_queue.prev->next->data_len	0-u32max[c]
HOST_DATA	0	sk->sk_receive_queue.prev->next->len	0-241,4294901762-u32max[c]
HOST_DATA	0	sk->sk_receive_queue.prev->next->truesize	0-u32max
HOST_DATA	0	sk->sk_receive_queue.prev->truesize	0-u32max
NO_OVERFLOW_SIMPLE	0	sk->sk_backlog.head->end
NO_OVERFLOW_SIMPLE	0	sk->sk_backlog.head->len
NO_OVERFLOW_SIMPLE	0	sk->sk_backlog.head->tail
NO_OVERFLOW_SIMPLE	0	sk->sk_backlog.head->truesize
NO_OVERFLOW_SIMPLE	0	sk->sk_backlog.len
NO_OVERFLOW_SIMPLE	0	sk->sk_backlog.tail->end
NO_OVERFLOW_SIMPLE	0	sk->sk_backlog.tail->len
NO_OVERFLOW_SIMPLE	0	sk->sk_backlog.tail->next->end
NO_OVERFLOW_SIMPLE	0	sk->sk_backlog.tail->next->len
NO_OVERFLOW_SIMPLE	0	sk->sk_backlog.tail->next->tail
NO_OVERFLOW_SIMPLE	0	sk->sk_backlog.tail->next->truesize
NO_OVERFLOW_SIMPLE	0	sk->sk_backlog.tail->tail
NO_OVERFLOW_SIMPLE	0	sk->sk_backlog.tail->truesize
NO_OVERFLOW_SIMPLE	0	sk->sk_prot_creator->twsk_prot->twsk_slab->sheaf_capacity
NO_OVERFLOW_SIMPLE	0	sk->sk_receive_queue.prev->end
NO_OVERFLOW_SIMPLE	0	sk->sk_receive_queue.prev->len
NO_OVERFLOW_SIMPLE	0	sk->sk_receive_queue.prev->next->end
NO_OVERFLOW_SIMPLE	0	sk->sk_receive_queue.prev->next->len
NO_OVERFLOW_SIMPLE	0	sk->sk_receive_queue.prev->next->tail
NO_OVERFLOW_SIMPLE	0	sk->sk_receive_queue.prev->next->truesize
NO_OVERFLOW_SIMPLE	0	sk->sk_receive_queue.prev->tail
NO_OVERFLOW_SIMPLE	0	sk->sk_receive_queue.prev->truesize
NO_OVERFLOW_SIMPLE	0	sk->sk_security
NO_OVERFLOW_SIMPLE	0	sk->sk_write_queue.next->end
NO_OVERFLOW_SIMPLE	0	sk->sk_write_queue.next->len
NO_OVERFLOW_SIMPLE	0	sk->sk_write_queue.next->prev->end
NO_OVERFLOW_SIMPLE	0	sk->sk_write_queue.next->prev->len
NO_OVERFLOW_SIMPLE	0	sk->sk_write_queue.next->prev->tail
NO_OVERFLOW_SIMPLE	0	sk->sk_write_queue.next->prev->truesize
NO_OVERFLOW_SIMPLE	0	sk->sk_write_queue.next->tail
NO_OVERFLOW_SIMPLE	0	sk->sk_write_queue.next->truesize
NO_OVERFLOW_SIMPLE	0	sk->sk_write_queue.prev->data_len
NO_OVERFLOW_SIMPLE	0	sk->sk_write_queue.prev->len
NO_OVERFLOW_SIMPLE	0	sk->sk_write_queue.prev->next->data_len
NO_OVERFLOW_SIMPLE	0	sk->sk_write_queue.prev->next->len
NO_OVERFLOW_SIMPLE	0	sk->sk_write_queue.prev->next->truesize
NO_OVERFLOW_SIMPLE	0	sk->sk_write_queue.prev->truesize
UNITS	0	sk	unit_byte
UNITS	1	val	unit_page
HALF_LOCKED2	0	sk
HALF_LOCKED2	0	&sk->__sk_common.skc_net.net->ipv4.ra_mutex
HALF_LOCKED2	0	&sk->__sk_common.skc_net.net->mctp.keys_lock
HALF_LOCKED2	0	&sk->sk_lock.slock

net/core/sock.c sock_reserve_memory() -> sk_memory_allocated_sub()

Type	Parameter	Key	Value
PARAM_VALUE	0	sk	4096-ptr_max
PARAM_VALUE	0	sk->__sk_common.skc_prot	4096-ptr_max
PARAM_VALUE	0	sk->__sk_common.skc_prot->per_cpu_fw_alloc	4096-ptr_max
PARAM_VALUE	1	val	1-524288
CAPPED_DATA	0	sk->sk_memcg	1
CAPPED_DATA	1	val	1
DATA_SOURCE	0	sk	$0
DATA_SOURCE	1	val	r sk_mem_pages
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
NO_OVERFLOW_SIMPLE	0	sk->sk_backlog.len
UNITS	0	sk	unit_byte
HALF_LOCKED2		sk
HALF_LOCKED2	0	sk