-----BEGIN PGP SIGNATURE-----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=wlzo
-----END PGP SIGNATURE-----
Merge tag 'for-6.12/io_uring-discard-20240913' of git://git.kernel.dk/linux
Pull io_uring async discard support from Jens Axboe:
"Sitting on top of both the 6.12 block and io_uring core branches,
here's support for async discard through io_uring.
This allows applications to issue async discards, rather than rely on
the blocking sync ioctl discards we already have. The sync support is
difficult to use outside of idle/cleanup periods.
On a real (but slow) device, testing shows the following results when
compared to sync discard:
qd64 sync discard: 21K IOPS, lat avg 3 msec (max 21 msec)
qd64 async discard: 76K IOPS, lat avg 845 usec (max 2.2 msec)
qd64 sync discard: 14K IOPS, lat avg 5 msec (max 25 msec)
qd64 async discard: 56K IOPS, lat avg 1153 usec (max 3.6 msec)
and synthetic null_blk testing with the same queue depth and block
size settings as above shows:
Type Trim size IOPS Lat avg (usec) Lat Max (usec)
==============================================================
sync 4k 144K 444 20314
async 4k 1353K 47 595
sync 1M 56K 1136 21031
async 1M 94K 680 760"
* tag 'for-6.12/io_uring-discard-20240913' of git://git.kernel.dk/linux:
block: implement async io_uring discard cmd
block: introduce blk_validate_byte_range()
filemap: introduce filemap_invalidate_pages
io_uring/cmd: give inline space in request to cmds
io_uring/cmd: expose iowq to cmds
adfc3ded5c