From: Brian King <brking@linux.vnet.ibm.com>
To: Sage Weil <sage@newdream.net>
Cc: linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org,
James Bottomley <James.Bottomley@HansenPartnership.com>
Subject: Re: [PATCH] ibmvscsi: avoid unnecessary use of kzalloc_pool
Date: Mon, 03 Aug 2009 16:19:48 -0500 [thread overview]
Message-ID: <4A775474.8000705@linux.vnet.ibm.com> (raw)
In-Reply-To: <1249332888-13440-2-git-send-email-sage@newdream.net>
Acked-by: Brian King <brking@linux.vnet.ibm.com>
Sage Weil wrote:
> The allocated struct is manually zeroed after allocation, so avoid using
> the (broken) kzalloc mempool (which does not re-zero previously used items
> when they are returned to the pool).
>
> CC: linux-scsi@vger.kernel.org
> CC: James Bottomley <James.Bottomley@HansenPartnership.com>
> Signed-off-by: Sage Weil <sage@newdream.net>
> ---
> drivers/scsi/ibmvscsi/ibmvfc.c | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c
> index 166d964..bb2c696 100644
> --- a/drivers/scsi/ibmvscsi/ibmvfc.c
> +++ b/drivers/scsi/ibmvscsi/ibmvfc.c
> @@ -4217,7 +4217,7 @@ static int ibmvfc_alloc_mem(struct ibmvfc_host *vhost)
> if (!vhost->trace)
> goto free_disc_buffer;
>
> - vhost->tgt_pool = mempool_create_kzalloc_pool(IBMVFC_TGT_MEMPOOL_SZ,
> + vhost->tgt_pool = mempool_create_kmalloc_pool(IBMVFC_TGT_MEMPOOL_SZ,
> sizeof(struct ibmvfc_target));
>
> if (!vhost->tgt_pool) {
--
Brian King
Linux on Power Virtualization
IBM Linux Technology Center
next prev parent reply other threads:[~2009-08-03 21:19 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-08-03 20:54 [PATCH] md: avoid use of broken kzalloc mempool Sage Weil
2009-08-03 20:54 ` Sage Weil
2009-08-03 20:54 ` [PATCH] ibmvscsi: avoid unnecessary use of kzalloc_pool Sage Weil
2009-08-03 20:54 ` [PATCH] mm: remove broken 'kzalloc' mempool Sage Weil
2009-08-03 20:54 ` Sage Weil
2009-08-03 20:57 ` Sage Weil
2009-08-03 20:57 ` Sage Weil
2009-08-03 21:19 ` Brian King [this message]
2009-08-03 21:13 ` [PATCH] md: avoid use of broken kzalloc mempool Andi Kleen
2009-08-03 21:13 ` Andi Kleen
2009-08-03 21:29 ` Sage Weil
2009-08-03 22:03 ` NeilBrown
2009-08-03 22:03 ` NeilBrown
2009-08-11 21:52 ` Andrew Morton
2009-08-11 22:03 ` Sage Weil
2009-08-12 23:17 ` Neil Brown
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