PROBE::IOBLOCK_TRACE(3stap)

NAME
probe::ioblock_trace.end - Fires whenever a block I/O transfer is complete.

SYNOPSIS

ioblock_trace.end

VALUES

opf
    operations and flags

flags
    see below BIO_UPTODATE 0 ok after I/O completion BIO_RW_BLOCK 1 RW_AHEAD set, and read/write would block BIO_EOF 2 out-out-bounds error BIO_SEG_VALID 3 nr_hw_seg valid BIO_CLONED 4 doesn't own data BIO_BOUNCED 5 bio is a bounce bio BIO_USER_MAPPED 6 contains user pages BIO_EOPNOTSUPP 7 not supported

ino
    i-node number of the mapped file

bytes_done
    number of bytes transferred

sector
    beginning sector for the entire bio

idx
    offset into the bio vector array phys_segments - number of segments in this bio after physical address coalescing is performed.

p_start_sect
    points to the start sector of the partition structure of the device

rw
    binary trace for read/write request

bdev_contains
    points to the device object which contains the partition (when bio structure represents a partition)

q
    request queue on which this bio was queued.

vcnt
    bio vector count which represents number of array element (page, offset, length) which makes up this I/O request

name
    name of the probe point

size
    total size in bytes

devname
    block device name

bdev
    target block device

CONTEXT

The process signals the transfer is done.

SEE ALSO
tapset::ioblock(3stap)