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From: Maor Gottlieb <maorg@nvidia.com>
To: Jason Gunthorpe <jgg@nvidia.com>, Leon Romanovsky <leon@kernel.org>
Cc: Doug Ledford <dledford@redhat.com>,
	Christoph Hellwig <hch@infradead.org>,
	 Ariel Elior <aelior@marvell.com>,
	Daniel Vetter <daniel@ffwll.ch>,
	"David Airlie" <airlied@linux.ie>,
	Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>,
	<dri-devel@lists.freedesktop.org>,
	 <intel-gfx@lists.freedesktop.org>,
	Jani Nikula <jani.nikula@linux.intel.com>,
	 Joonas Lahtinen <joonas.lahtinen@linux.intel.com>,
	<linux-kernel@vger.kernel.org>, <linux-rdma@vger.kernel.org>,
	"Maarten Lankhorst" <maarten.lankhorst@linux.intel.com>,
	Maxime Ripard <mripard@kernel.org>,
	Michal Kalderon <mkalderon@marvell.com>,
	"Mike Marciniszyn" <mike.marciniszyn@cornelisnetworks.com>,
	Mustafa Ismail <mustafa.ismail@intel.com>,
	Rodrigo Vivi <rodrigo.vivi@intel.com>,
	"Roland Scheidegger" <sroland@vmware.com>,
	Shiraz Saleem <shiraz.saleem@intel.com>,
	Thomas Zimmermann <tzimmermann@suse.de>,
	VMware Graphics <linux-graphics-maintainer@vmware.com>,
	Weihang Li <liweihang@huawei.com>,
	Wenpeng Liang <liangwenpeng@huawei.com>,
	Yishai Hadas <yishaih@nvidia.com>, Zack Rusin <zackr@vmware.com>,
	Zhu Yanjun <zyjzyj2000@gmail.com>
Subject: Re: [Intel-gfx] [PATCH rdma-next v3 2/3] lib/scatterlist: Fix wrong update of orig_nents
Date: Mon, 23 Aug 2021 14:09:37 +0300	[thread overview]
Message-ID: <85542c97-c7e0-3db3-baa8-2413c00f75a4@nvidia.com> (raw)
In-Reply-To: <20210820155425.GA530861@nvidia.com>


On 8/20/2021 6:54 PM, Jason Gunthorpe wrote:
> On Thu, Jul 29, 2021 at 12:39:12PM +0300, Leon Romanovsky wrote:
>
>> +/**
>> + * __sg_free_table - Free a previously mapped sg table
>> + * @table:	The sg table header to use
>> + * @max_ents:	The maximum number of entries per single scatterlist
>> + * @total_ents:	The total number of entries in the table
>> + * @nents_first_chunk: Number of entries int the (preallocated) first
>> + *                     scatterlist chunk, 0 means no such preallocated
>> + *                     first chunk
>> + * @free_fn:	Free function
>> + *
>> + *  Description:
>> + *    Free an sg table previously allocated and setup with
>> + *    __sg_alloc_table().  The @max_ents value must be identical to
>> + *    that previously used with __sg_alloc_table().
>> + *
>> + **/
>> +void __sg_free_table(struct sg_table *table, unsigned int max_ents,
>> +		     unsigned int nents_first_chunk, sg_free_fn *free_fn)
>> +{
>> +	sg_free_table_entries(table, max_ents, nents_first_chunk, free_fn,
>> +			      table->orig_nents);
>> +}
>>   EXPORT_SYMBOL(__sg_free_table);
> This is getting a bit indirect, there is only one caller of
> __sg_free_table() in sg_pool.c, so may as well just export
> sg_free_table_entries have have it use that directly.
>
> Jason

So I can just extend __sg_free_table to get number of entries. What do 
you think?

  parent reply	other threads:[~2021-08-23 11:53 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-29  9:39 [Intel-gfx] [PATCH rdma-next v3 0/3] SG fix together with update to RDMA umem Leon Romanovsky
2021-07-29  9:39 ` [Intel-gfx] [PATCH rdma-next v3 1/3] lib/scatterlist: Provide a dedicated function to support table append Leon Romanovsky
2021-07-29  9:39 ` [Intel-gfx] [PATCH rdma-next v3 2/3] lib/scatterlist: Fix wrong update of orig_nents Leon Romanovsky
2021-08-20 15:54   ` Jason Gunthorpe
2021-08-20 15:57     ` Jason Gunthorpe
2021-08-23 11:09     ` Maor Gottlieb [this message]
2021-08-23 12:45       ` Jason Gunthorpe
     [not found]         ` <2aab4d71-c6d3-d24c-ed81-7ded355a1592@nvidia.com>
2021-08-23 13:54           ` Jason Gunthorpe
2021-07-29  9:39 ` [Intel-gfx] [PATCH rdma-next v3 3/3] RDMA: Use the sg_table directly and remove the opencoded version from umem Leon Romanovsky
2021-07-29  9:42 ` [Intel-gfx] ✗ Fi.CI.BUILD: failure for SG fix together with update to RDMA umem (rev3) Patchwork
2021-08-20 16:18 ` [Intel-gfx] [PATCH rdma-next v3 0/3] SG fix together with update to RDMA umem Jason Gunthorpe

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