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869d66af53
qemu/hw/block
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Stefan Hajnoczi 869d66af53 virtio-blk: avoid g_slice_new0() for VirtIOBlockReq and VirtQueueElement 
In commit de6c8042ec ("virtio-blk: Avoid
zeroing every request structure") we avoided the 40 KB memset when
allocating VirtIOBlockReq.

The memset was reintroduced in commit
671ec3f056 ("virtio-blk: Convert
VirtIOBlockReq.elem to pointer").

It must be fixed again to avoid a performance regression.

Cc: Fam Zheng <famz@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-07-14 12:03:20 +02:00
..
dataplane virtio-blk: avoid dataplane VirtIOBlockReq early free 2014-07-14 12:03:20 +02:00
block.c hw: move target-independent files to subdirectories 2013-04-08 18:13:12 +02:00
cdrom.c bswap.h: Remove cpu_to_be32wu() 2013-11-05 19:57:47 -08:00
ecc.c savevm: Remove all the unneeded version_minimum_id_old (arm) 2014-05-13 16:09:35 +01:00
fdc.c savevm: Remove all the unneeded version_minimum_id_old (x86) 2014-06-16 04:55:26 +02:00
hd-geometry.c hw: move target-independent files to subdirectories 2013-04-08 18:13:12 +02:00
m25p80.c block: m25p80: Support read only bdrvs. 2014-06-21 16:40:14 +08:00
Makefile.objs pc_sysfw: do not make it a device anymore 2013-08-12 09:31:14 -05:00
nand.c savevm: Remove all the unneeded version_minimum_id_old (arm) 2014-05-13 16:09:35 +01:00
nvme.c nvme: Permit zero-length block devices 2014-03-31 22:35:03 +02:00
nvme.h NVMe: Initial commit for new storage interface 2013-06-17 17:47:59 +02:00
onenand.c block: Drop superfluous conditionals around g_free() 2014-06-16 17:23:19 +08:00
pflash_cfi01.c hw/block/pflash_cfi01: Report correct size info for parallel configs 2014-06-19 18:06:25 +01:00
pflash_cfi02.c pflash_cfi02.c: fix debug macro 2013-09-01 19:32:42 +04:00
tc58128.c shix: Don't require firmware presence for qtest 2013-11-05 17:47:29 +01:00
virtio-blk.c virtio-blk: avoid g_slice_new0() for VirtIOBlockReq and VirtQueueElement 2014-07-14 12:03:20 +02:00
xen_blkif.h xen_disk: add discard support 2014-05-07 16:18:04 +00:00
xen_disk.c xen_disk: add discard support 2014-05-07 16:18:04 +00:00