PROBE::IOBLOCK_TRACE(3stap)

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

SYNOPSIS

ioblock_trace.end

VALUES

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

devname
    block device name

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

size
    total size in bytes

sector
    beginning sector for the entire bio

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

name
    name of the probe point

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

rw
    binary trace for read/write request

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

ino
    i-node number of the mapped file

q
    request queue on which this bio was queued.

bdev
    target block device

bytes_done
    number of bytes transferred

CONTEXT

The process signals the transfer is done.

SEE ALSO
tapset::ioblock(3stap)