From: Eric Blake <eblake@redhat.com>
To: Peter Lieven <pl@kamp.de>
Cc: kwolf@redhat.com, ronniesahlberg@gmail.com, stefanha@redhat.com,
qemu-devel@nongnu.org, anthony@codemonkey.ws,
pbonzini@redhat.com
Subject: Re: [Qemu-devel] [PATCH 04/12] iscsi: add .bdrv_co_write_zeroes
Date: Fri, 13 Sep 2013 12:10:52 -0600 [thread overview]
Message-ID: <5233552C.90904@redhat.com> (raw)
In-Reply-To: <1379067909-22984-5-git-send-email-pl@kamp.de>
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On 09/13/2013 04:25 AM, Peter Lieven wrote:
> Signed-off-by: Peter Lieven <pl@kamp.de>
> ---
> block/iscsi.c | 78 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> 1 file changed, 78 insertions(+)
>
> + if (iscsilun->zeroblock == NULL) {
> + iscsilun->zeroblock = g_malloc(iscsilun->block_size);
> + if (iscsilun->zeroblock == NULL) {
> + return -ENOMEM;
g_malloc cannot return NULL (it aborts the program on OOM instead), so
this is dead code.
> + }
> + memset(iscsilun->zeroblock, 0x00, iscsilun->block_size);
Furthermore, if you had used g_malloc0(), you wouldn't need this memset.
--
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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next prev parent reply other threads:[~2013-09-13 18:11 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-13 10:24 [Qemu-devel] [PATCH 00/12] block: logical block provisioning enhancements Peter Lieven
2013-09-13 10:24 ` [Qemu-devel] [PATCH 01/12] block: make BdrvRequestFlags public Peter Lieven
2013-09-13 16:29 ` Eric Blake
2013-09-13 10:24 ` [Qemu-devel] [PATCH 02/12] block: add flags to bdrv_*_write_zeroes Peter Lieven
2013-09-13 16:58 ` Eric Blake
2013-09-13 10:25 ` [Qemu-devel] [PATCH 03/12] block: introduce BDRV_REQ_MAY_UNMAP in bdrv_co_write_zeroes Peter Lieven
2013-09-13 18:07 ` Eric Blake
2013-09-13 10:25 ` [Qemu-devel] [PATCH 04/12] iscsi: add .bdrv_co_write_zeroes Peter Lieven
2013-09-13 18:10 ` Eric Blake [this message]
2013-09-13 10:25 ` [Qemu-devel] [PATCH 05/12] block: add logical block provisioning information to BlockDriverInfo Peter Lieven
2013-09-13 10:34 ` Paolo Bonzini
2013-09-13 10:44 ` Peter Lieven
2013-09-13 11:45 ` Paolo Bonzini
2013-09-13 12:22 ` Peter Lieven
2013-09-13 12:58 ` Paolo Bonzini
2013-09-16 11:30 ` Peter Lieven
2013-09-16 11:37 ` Paolo Bonzini
2013-09-13 10:25 ` [Qemu-devel] [PATCH 06/12] iscsi: add .bdrv_get_info Peter Lieven
2013-09-13 18:19 ` Eric Blake
2013-09-13 10:25 ` [Qemu-devel] [PATCH 07/12] block: introduce bdrv_zeroize Peter Lieven
2013-09-13 10:47 ` Peter Lieven
2013-09-13 18:23 ` Eric Blake
2013-09-13 10:25 ` [Qemu-devel] [PATCH 08/12] qemu-img: conditionally zero out target on convert Peter Lieven
2013-09-13 10:36 ` Paolo Bonzini
2013-09-13 10:46 ` Peter Lieven
2013-09-13 11:35 ` Paolo Bonzini
2013-09-13 18:25 ` Eric Blake
2013-09-13 19:48 ` Peter Lieven
2013-09-13 19:52 ` Eric Blake
2013-09-16 11:01 ` Paolo Bonzini
2013-09-13 10:25 ` [Qemu-devel] [PATCH 09/12] block/get_block_status: set *pnum = 0 on error Peter Lieven
2013-09-13 18:26 ` Eric Blake
2013-09-13 10:25 ` [Qemu-devel] [PATCH 10/12] block/get_block_status: avoid segfault if there is no backing_hd Peter Lieven
2013-09-13 18:26 ` Eric Blake
2013-09-13 10:25 ` [Qemu-devel] [PATCH 11/12] block/get_block_status: avoid redundant callouts on raw devices Peter Lieven
2013-09-13 18:28 ` Eric Blake
2013-09-13 10:25 ` [Qemu-devel] [PATCH 12/12] block/get_block_status: fix BDRV_BLOCK_ZERO for unallocated blocks Peter Lieven
2013-09-13 13:53 ` Eric Blake
2013-09-16 5:47 ` Peter Lieven
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