From: Oleksandr Tyshchenko <olekstysh@gmail.com>
To: xen-devel@lists.xenproject.org, linux-kernel@vger.kernel.org
Cc: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com>,
Boris Ostrovsky <boris.ostrovsky@oracle.com>,
Juergen Gross <jgross@suse.com>,
Stefano Stabellini <sstabellini@kernel.org>,
Julien Grall <julien@xen.org>
Subject: [PATCH V2 1/4] xen/unpopulated-alloc: Drop check for virt_addr_valid() in fill_list()
Date: Tue, 26 Oct 2021 19:05:09 +0300 [thread overview]
Message-ID: <1635264312-3796-2-git-send-email-olekstysh@gmail.com> (raw)
In-Reply-To: <1635264312-3796-1-git-send-email-olekstysh@gmail.com>
From: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com>
If memremap_pages() succeeds the range is guaranteed to have proper page
table, there is no need for an additional virt_addr_valid() check.
Signed-off-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com>
---
Changes RFC -> V2:
- new patch, instead of
"[RFC PATCH 1/2] arm64: mm: Make virt_addr_valid to check for pfn_valid again"
---
drivers/xen/unpopulated-alloc.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/xen/unpopulated-alloc.c b/drivers/xen/unpopulated-alloc.c
index 87e6b7d..a03dc5b 100644
--- a/drivers/xen/unpopulated-alloc.c
+++ b/drivers/xen/unpopulated-alloc.c
@@ -85,7 +85,6 @@ static int fill_list(unsigned int nr_pages)
for (i = 0; i < alloc_pages; i++) {
struct page *pg = virt_to_page(vaddr + PAGE_SIZE * i);
- BUG_ON(!virt_addr_valid(vaddr + PAGE_SIZE * i));
pg->zone_device_data = page_list;
page_list = pg;
list_count++;
--
2.7.4
next prev parent reply other threads:[~2021-10-26 16:07 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-26 16:05 [PATCH V2 0/4] xen: Add support of extended regions (safe ranges) on Arm Oleksandr Tyshchenko
2021-10-26 16:05 ` Oleksandr Tyshchenko [this message]
2021-10-28 18:57 ` [PATCH V2 1/4] xen/unpopulated-alloc: Drop check for virt_addr_valid() in fill_list() Boris Ostrovsky
2021-10-26 16:05 ` [PATCH V2 2/4] arm/xen: Switch to use gnttab_setup_auto_xlat_frames() for DT Oleksandr Tyshchenko
2021-10-28 1:28 ` Stefano Stabellini
2021-11-10 22:14 ` Oleksandr
2021-11-19 0:32 ` Stefano Stabellini
2021-11-19 18:25 ` Oleksandr
2021-10-26 16:05 ` [PATCH V2 3/4] xen/unpopulated-alloc: Add mechanism to use Xen resource Oleksandr Tyshchenko
2021-10-28 16:37 ` Stefano Stabellini
2021-11-09 18:34 ` Oleksandr
2021-11-19 0:59 ` Stefano Stabellini
2021-11-19 18:18 ` Oleksandr
2021-11-20 2:19 ` Stefano Stabellini
2021-11-23 16:46 ` Oleksandr
2021-11-23 21:25 ` Stefano Stabellini
2021-11-24 9:33 ` Oleksandr
2021-11-24 5:16 ` Juergen Gross
2021-11-24 9:37 ` Oleksandr
2021-10-28 19:08 ` Boris Ostrovsky
2021-11-09 18:51 ` Oleksandr
2021-10-26 16:05 ` [PATCH V2 4/4] arm/xen: Read extended regions from DT and init " Oleksandr Tyshchenko
2021-10-28 1:40 ` Stefano Stabellini
2021-11-10 20:21 ` Oleksandr
2021-11-19 1:19 ` Stefano Stabellini
2021-11-19 20:23 ` Oleksandr
2021-11-20 2:36 ` Stefano Stabellini
2021-11-20 13:38 ` Oleksandr
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