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Documented in 1 files:

Defined in 1 files as a function:

Referenced in 3 files:

Smatch caller information:

fs/splice.c ipipe_prep() -> pipe_is_empty()

Type Parameter Key Value
PARAM_VALUE 0 pipe 1-u64max
BUF_SIZE 0 pipe s32min-(-2),1-s32max
BUF_SIZE 0 pipe s32min-(-2),1-s32max
CAPPED_DATA 0 pipe 1
DATA_SOURCE 0 pipe $0
RX_PATH
TASK_NOT_RUNNING

fs/splice.c ipipe_prep() -> pipe_is_empty()

Type Parameter Key Value
PARAM_VALUE 0 pipe 4096-ptr_max
BUF_SIZE 0 pipe s32min-(-2),1-s32max
BUF_SIZE 0 pipe s32min-(-2),1-s32max
CAPPED_DATA 0 pipe 1
DATA_SOURCE 0 pipe $0
RX_PATH
TASK_NOT_RUNNING

fs/splice.c ipipe_prep() -> pipe_is_empty()

Type Parameter Key Value
PARAM_VALUE 0 pipe 4096-ptr_max
BUF_SIZE 0 pipe s32min-(-2),1-s32max
BUF_SIZE 0 pipe s32min-(-2),1-s32max
CAPPED_DATA 0 pipe 1
DATA_SOURCE 0 pipe $0
RX_PATH
TASK_NOT_RUNNING

fs/splice.c splice_direct_to_actor() -> pipe_is_empty()

Type Parameter Key Value
PARAM_VALUE 0 pipe 1-u64max
BUF_SIZE 0 pipe (-1),488
BUF_SIZE 0 pipe (-1),488
RX_PATH
TASK_NOT_RUNNING
NO_OVERFLOW_SIMPLE 0 pipe->max_usage
NO_OVERFLOW_SIMPLE 0 pipe->nr_accounted
NO_OVERFLOW_SIMPLE 0 pipe->ring_size

fs/splice.c splice_from_pipe_next() -> pipe_is_empty()

Type Parameter Key Value
PARAM_VALUE 0 pipe 4096-ptr_max
BUF_SIZE 0 pipe s32min-(-1),1-s32max
BUF_SIZE 0 pipe s32min-(-1),1-s32max
DATA_SOURCE 0 pipe $0
RX_PATH
TASK_NOT_RUNNING
NO_OVERFLOW_SIMPLE 0 pipe->max_usage
NO_OVERFLOW_SIMPLE 0 pipe->nr_accounted
NO_OVERFLOW_SIMPLE 0 pipe->ring_size

fs/splice.c splice_from_pipe_next() -> pipe_is_empty()

Type Parameter Key Value
PARAM_VALUE 0 pipe 4096-ptr_max
BUF_SIZE 0 pipe s32min-(-1),1-s32max
BUF_SIZE 0 pipe s32min-(-1),1-s32max
DATA_SOURCE 0 pipe $0
RX_PATH
TASK_NOT_RUNNING
NO_OVERFLOW_SIMPLE 0 pipe->max_usage
NO_OVERFLOW_SIMPLE 0 pipe->nr_accounted
NO_OVERFLOW_SIMPLE 0 pipe->ring_size

fs/splice.c splice_to_socket() -> pipe_is_empty()

Type Parameter Key Value
PARAM_VALUE 0 pipe 4096-ptr_max
BUF_SIZE 0 pipe s32min-(-1),1-s32max
BUF_SIZE 0 pipe s32min-(-1),1-s32max
DATA_SOURCE 0 pipe $0
RX_PATH
TASK_NOT_RUNNING
NO_OVERFLOW_SIMPLE 0 pipe->max_usage
NO_OVERFLOW_SIMPLE 0 pipe->nr_accounted
NO_OVERFLOW_SIMPLE 0 pipe->ring_size
HALF_LOCKED2 &inode->i_rwsem

fs/splice.c splice_to_socket() -> pipe_is_empty()

Type Parameter Key Value
PARAM_VALUE 0 pipe 4096-ptr_max
BUF_SIZE 0 pipe s32min-(-1),1-s32max
BUF_SIZE 0 pipe s32min-(-1),1-s32max
DATA_SOURCE 0 pipe $0
RX_PATH
TASK_NOT_RUNNING
NO_OVERFLOW_SIMPLE 0 pipe->max_usage
NO_OVERFLOW_SIMPLE 0 pipe->nr_accounted
NO_OVERFLOW_SIMPLE 0 pipe->ring_size
HALF_LOCKED2 &inode->i_rwsem

fs/pipe.c anon_pipe_read() -> pipe_is_empty()

Type Parameter Key Value
PARAM_VALUE 0 pipe 4096-ptr_max
BUF_SIZE 0 pipe s32min-(-2),1-s32max
BUF_SIZE 0 pipe s32min-(-2),1-s32max
CAPPED_DATA 0 &pipe->mutex 1
RX_PATH
TASK_NOT_RUNNING
LOCK2 0 &pipe->mutex
HALF_LOCKED2 &pool->lock
TYPE_LOCK (struct pipe_inode_info)->mutex

fs/pipe.c anon_pipe_write() -> pipe_is_empty()

Type Parameter Key Value
PARAM_VALUE 0 pipe 4096-ptr_max
BUF_SIZE 0 pipe s32min-(-2),1-s32max
BUF_SIZE 0 pipe s32min-(-2),1-s32max
CAPPED_DATA 0 pipe->fasync_readers 1
CAPPED_DATA 0 pipe->max_usage 1
CAPPED_DATA 0 &pipe->mutex 1
CONSTRAINT 0 pipe->max_usage <=4132
RX_PATH
TASK_NOT_RUNNING
LOCK2 0 &pipe->mutex
HALF_LOCKED2 &pool->lock
TYPE_LOCK (struct pipe_inode_info)->mutex

drivers/char/virtio_console.c port_fops_splice_write() -> pipe_is_empty()

Type Parameter Key Value
PARAM_VALUE 0 pipe 4096-ptr_max
BUF_SIZE 0 pipe s32min-(-1),1-s32max
BUF_SIZE 0 pipe s32min-(-1),1-s32max
DATA_SOURCE 0 pipe $0
RX_PATH
TASK_NOT_RUNNING
NO_OVERFLOW_SIMPLE 0 pipe->max_usage
NO_OVERFLOW_SIMPLE 0 pipe->nr_accounted
NO_OVERFLOW_SIMPLE 0 pipe->ring_size
HALF_LOCKED2 &inode->i_rwsem