[3.13.y-ckt stable] Patch "axonram: Fix bug in direct_access" has been added to staging queue
Kamal Mostafa
kamal at canonical.com
Tue Mar 31 18:45:23 UTC 2015
This is a note to let you know that I have just added a patch titled
axonram: Fix bug in direct_access
to the linux-3.13.y-queue branch of the 3.13.y-ckt extended stable tree
which can be found at:
http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.13.y-queue
This patch is scheduled to be released in version 3.13.11-ckt18.
If you, or anyone else, feels it should not be added to this tree, please
reply to this email.
For more information about the 3.13.y-ckt tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable
Thanks.
-Kamal
------
>From 9f3b2d00d05f503dced18913b9a11f81c0fdb967 Mon Sep 17 00:00:00 2001
From: Matthew Wilcox <matthew.r.wilcox at intel.com>
Date: Wed, 7 Jan 2015 18:04:18 +0200
Subject: axonram: Fix bug in direct_access
commit 91117a20245b59f70b563523edbf998a62fc6383 upstream.
The 'pfn' returned by axonram was completely bogus, and has been since
2008.
Signed-off-by: Matthew Wilcox <matthew.r.wilcox at intel.com>
Reviewed-by: Jan Kara <jack at suse.cz>
Reviewed-by: Mathieu Desnoyers <mathieu.desnoyers at efficios.com>
Signed-off-by: Jens Axboe <axboe at fb.com>
Signed-off-by: Kamal Mostafa <kamal at canonical.com>
---
arch/powerpc/sysdev/axonram.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/sysdev/axonram.c b/arch/powerpc/sysdev/axonram.c
index 1c16141..1fea249 100644
--- a/arch/powerpc/sysdev/axonram.c
+++ b/arch/powerpc/sysdev/axonram.c
@@ -155,7 +155,7 @@ axon_ram_direct_access(struct block_device *device, sector_t sector,
}
*kaddr = (void *)(bank->ph_addr + offset);
- *pfn = virt_to_phys(kaddr) >> PAGE_SHIFT;
+ *pfn = virt_to_phys(*kaddr) >> PAGE_SHIFT;
return 0;
}
--
1.9.1
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