From: Jacob Pan <jacob.jun.pan@linux.intel.com>
To: LKML <linux-kernel@vger.kernel.org>,
iommu@lists.linux.dev, Jason Gunthorpe <jgg@nvidia.com>,
"Lu Baolu" <baolu.lu@linux.intel.com>,
Joerg Roedel <joro@8bytes.org>,
Jean-Philippe Brucker <jean-philippe@linaro.com>,
"Robin Murphy" <robin.murphy@arm.com>,
Dave Hansen <dave.hansen@intel.com>,
Thomas Gleixner <tglx@linutronix.de>, X86 Kernel <x86@kernel.org>,
bp@alien8.de, "H. Peter Anvin" <hpa@zytor.com>,
Peter Zijlstra <peterz@infradead.org>,
corbet@lwn.net, vkoul@kernel.org, dmaengine@vger.kernel.org,
linux-doc@vger.kernel.org
Cc: "Will Deacon" <will@kernel.org>,
David Woodhouse <dwmw2@infradead.org>,
Raj Ashok <ashok.raj@intel.com>,
"Tian, Kevin" <kevin.tian@intel.com>, Yi Liu <yi.l.liu@intel.com>,
"Yu, Fenghua" <fenghua.yu@intel.com>,
Dave Jiang <dave.jiang@intel.com>,
Kirill Shutemov <kirill.shutemov@linux.intel.com>,
Tony Luck <tony.luck@intel.com>,
Jacob Pan <jacob.jun.pan@linux.intel.com>
Subject: [PATCH v6 5/7] iommu/sva: Use GFP_KERNEL for pasid allocation
Date: Mon, 13 Mar 2023 13:41:56 -0700 [thread overview]
Message-ID: <20230313204158.1495067-6-jacob.jun.pan@linux.intel.com> (raw)
In-Reply-To: <20230313204158.1495067-1-jacob.jun.pan@linux.intel.com>
We’re not using spinlock-protected IOASID allocation anymore, there’s
no need for GFP_ATOMIC.
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
---
drivers/iommu/iommu-sva.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/iommu/iommu-sva.c b/drivers/iommu/iommu-sva.c
index d4640731727a..d1cb72f76ceb 100644
--- a/drivers/iommu/iommu-sva.c
+++ b/drivers/iommu/iommu-sva.c
@@ -28,8 +28,8 @@ static int iommu_sva_alloc_pasid(struct mm_struct *mm, ioasid_t min, ioasid_t ma
goto out;
}
- ret = ida_alloc_range(&iommu_global_pasid_ida, min, max, GFP_ATOMIC);
- if (ret < 0)
+ ret = ida_alloc_range(&iommu_global_pasid_ida, min, max, GFP_KERNEL);
+ if (ret < min)
goto out;
mm->pasid = ret;
ret = 0;
--
2.25.1
next prev parent reply other threads:[~2023-03-13 20:38 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-13 20:41 Jacob Pan
2023-03-13 20:41 ` [PATCH v6 1/7] iommu/vt-d: Remove virtual command interface Jacob Pan
2023-03-13 20:41 ` [PATCH v6 2/7] iommu/sva: Move PASID helpers to sva code Jacob Pan
2023-03-14 2:07 ` Baolu Lu
2023-03-20 15:05 ` Jason Gunthorpe
2023-03-13 20:41 ` [PATCH v6 3/7] iommu/sva: Remove PASID to mm lookup function Jacob Pan
2023-03-14 2:08 ` Baolu Lu
2023-03-13 20:41 ` [PATCH v6 4/7] iommu/sva: Stop using ioasid_set for SVA Jacob Pan
2023-03-14 2:16 ` Baolu Lu
2023-03-14 15:15 ` Jacob Pan
2023-03-13 20:41 ` Jacob Pan [this message]
2023-03-20 15:04 ` [PATCH v6 5/7] iommu/sva: Use GFP_KERNEL for pasid allocation Jason Gunthorpe
2023-03-13 20:41 ` [PATCH v6 6/7] iommu/ioasid: Rename INVALID_IOASID Jacob Pan
2023-03-13 20:41 ` [PATCH v6 7/7] iommu: Remove ioasid infrastructure Jacob Pan
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20230313204158.1495067-6-jacob.jun.pan@linux.intel.com \
--to=jacob.jun.pan@linux.intel.com \
--cc=ashok.raj@intel.com \
--cc=baolu.lu@linux.intel.com \
--cc=bp@alien8.de \
--cc=corbet@lwn.net \
--cc=dave.hansen@intel.com \
--cc=dave.jiang@intel.com \
--cc=dmaengine@vger.kernel.org \
--cc=dwmw2@infradead.org \
--cc=fenghua.yu@intel.com \
--cc=hpa@zytor.com \
--cc=iommu@lists.linux.dev \
--cc=jean-philippe@linaro.com \
--cc=jgg@nvidia.com \
--cc=joro@8bytes.org \
--cc=kevin.tian@intel.com \
--cc=kirill.shutemov@linux.intel.com \
--cc=linux-doc@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=peterz@infradead.org \
--cc=robin.murphy@arm.com \
--cc=tglx@linutronix.de \
--cc=tony.luck@intel.com \
--cc=vkoul@kernel.org \
--cc=will@kernel.org \
--cc=x86@kernel.org \
--cc=yi.l.liu@intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.