probe::ioblock.end — Fires whenever a block I/O transfer is complete.
ioblock.end
name
name of the probe point
error
0 on success
hw_segments
number of segments after physical and DMA remapping hardware coalescing is performed
bytes_done
number of bytes transferred
vcnt
bio vector count which represents number of array element (page, offset, length) which makes up this I/O request
ino
i-node number of the mapped file
sector
beginning sector for the entire bio
phys_segments
number of segments in this bio after physical address coalescing is performed.
opf
operations and flags
size
total size in bytes
devname
block device name
idx
offset into the bio vector array
rw
binary trace for read/write request
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