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UML - fix epoll

PATCH In review Jeff Dike 2 participants 2 messages Mar 23, 2007 – Mar 30, 2007 User-mode Linux (UML)

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Jeff Dike

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PATCH 1/1 UML - fix epoll

[ This is both 2.6.21 and -stable material ]

UML/x86_64 needs the same packing of struct epoll_event as x86_64.

--

 include/linux/eventpoll.h |    7 +++++++
 1 file changed, 7 insertions(+)
include/linux/eventpoll.h +7 -0
Index: linux-2.6.21-mm/include/linux/eventpoll.h
===================================================================
@@ -31,12 +31,19 @@
 /* 
  * On x86-64 make the 64bit structure have the same alignment as the
  * 32bit structure. This makes 32bit emulation easier.
+ *
+ * UML/x86_64 needs the same packing as x86_64 - UML + UML_X86 +
+ * 64_BIT adds up to UML/x86_64.
  */
 #ifdef __x86_64__
 #define EPOLL_PACKED __attribute__((packed))
 #else
+#if defined(CONFIG_UML) && defined(CONFIG_UML_X86) && defined(CONFIG_64BIT)
+#define EPOLL_PACKED __attribute__((packed))
+#else
 #define EPOLL_PACKED
 #endif
+#endif
 
 struct epoll_event {
 	__u32 events;

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#1 lore raw

[uml-devel] patch uml-fix-epoll.patch queued to -stable tree

This is a note to let you know that we have just queued up the patch titled

Subject: UML - fix epoll

to the 2.6.20-stable tree. Its filename is

uml-fix-epoll.patch

A git repo of this tree can be found at
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

From [email protected] Fri Mar 23 11:22:17 2007
From: Jeff Dike <[email protected]>
Date: Fri, 23 Mar 2007 14:18:17 -0400
Subject: UML - fix epoll
To: Andrew Morton <[email protected]>, [email protected]
Cc: uml-devel <[email protected]>
Message-ID: <[email protected]>
Content-Disposition: inline

From: Jeff Dike <[email protected]>

UML/x86_64 needs the same packing of struct epoll_event as x86_64.

include/linux/eventpoll.h +7 -0
@@ -31,12 +31,19 @@
 /* 
  * On x86-64 make the 64bit structure have the same alignment as the
  * 32bit structure. This makes 32bit emulation easier.
+ *
+ * UML/x86_64 needs the same packing as x86_64 - UML + UML_X86 +
+ * 64_BIT adds up to UML/x86_64.
  */
 #ifdef __x86_64__
 #define EPOLL_PACKED __attribute__((packed))
 #else
+#if defined(CONFIG_UML) && defined(CONFIG_UML_X86) && defined(CONFIG_64BIT)
+#define EPOLL_PACKED __attribute__((packed))
+#else
 #define EPOLL_PACKED
 #endif
+#endif
 
 struct epoll_event {
 	__u32 events;

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Patches currently in stable-queue which might be from [email protected] are

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