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