linux/drivers/block
Ming Lei 24d4c90286 ublk: move cold paths out of __ublk_batch_dispatch() for icache efficiency
Mark ublk_filter_unused_tags() as noinline since it is only called from
the unlikely(needs_filter) branch. Extract the error-handling block from
__ublk_batch_dispatch() into a new noinline ublk_batch_dispatch_fail()
function to keep the hot path compact and icache-friendly. This also
makes __ublk_batch_dispatch() more readable by separating the error
recovery logic from the normal dispatch flow.

Before: __ublk_batch_dispatch is ~1419 bytes
After:  __ublk_batch_dispatch is ~1090 bytes (-329 bytes, -23%)

Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://patch.msgid.link/20260318014112.3125432-1-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2026-03-22 19:03:52 -06:00
..
aoe Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
drbd block-7.0-20260227 2026-02-27 10:42:02 -08:00
mtip32xx
null_blk Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
rnbd Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL uses 2026-02-22 08:26:33 -08:00
rnull configfs changes for v7.0 2026-02-12 14:01:38 -08:00
xen-blkback Convert more 'alloc_obj' cases to default GFP_KERNEL arguments 2026-02-21 20:03:00 -08:00
zram Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
Kconfig
Makefile
amiflop.c
ataflop.c
brd.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
floppy.c
loop.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
n64cart.c
nbd.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
ps3disk.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
ps3vram.c Convert more 'alloc_obj' cases to default GFP_KERNEL arguments 2026-02-21 20:03:00 -08:00
rbd.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
rbd_types.h
sunvdc.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
swim.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
swim3.c
swim_asm.S
ublk_drv.c ublk: move cold paths out of __ublk_batch_dispatch() for icache efficiency 2026-03-22 19:03:52 -06:00
virtio_blk.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
xen-blkfront.c Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL uses 2026-02-22 08:26:33 -08:00
z2ram.c Convert more 'alloc_obj' cases to default GFP_KERNEL arguments 2026-02-21 20:03:00 -08:00
zloop.c block-7.0-20260227 2026-02-27 10:42:02 -08:00