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probe::ioblock_trace.end
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)
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
devname- block device name
bytes_done- number of bytes transferred
name- name of the probe point
sector- beginning sector for the entire bio
ino- i-node number of the mapped file
rw- binary trace for read/write request
size- total size in bytes
q- request queue on which this bio was queued.
idx- offset into the bio vector array
phys_segments- number of segments in this bio after physical address coalescing is performed. vcnt- bio vector count which represents number of array element (page, offset, length) which makes up this I/O request
bdev- target block device
p_start_sect- points to the start sector of the partition structure of the device
Context
The process signals the transfer is done.
