[Xen-changelog] [xen-3.1-testing] ia64, linux: Import linux git changeset 5ee7737379b1d7f0c977c0f1661fbaf01a8d4721

["Xen patchbot-3.1-testing" <patchbot-3.1-testing@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User Keir Fraser <keir@xxxxxxxxxxxxx>
# Date 1178542722 -3600
# Node ID 9d0dbe9c4d6bd217d4f23310d7ae87ca853f880d
# Parent  33fbff91ebe4fb6aed80446d8602602869b0dfc4
ia64, linux: Import linux git changeset 5ee7737379b1d7f0c977c0f1661fbaf01a8d4721

Without this, IA64 vcpu hot plug/remove or domain save/restore cause
kernel panic.

Signed-off-by: Isaku Yamahata <yamahata@xxxxxxxxxxxxx>
---
 patches/linux-2.6.18/git-5ee7737379b1d7f0c977c0f1661fbaf01a8d4721.patch |   21 
++++++++++
 patches/linux-2.6.18/series                                             |    1 
 2 files changed, 22 insertions(+)

diff -r 33fbff91ebe4 -r 9d0dbe9c4d6b 
patches/linux-2.6.18/git-5ee7737379b1d7f0c977c0f1661fbaf01a8d4721.patch
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/patches/linux-2.6.18/git-5ee7737379b1d7f0c977c0f1661fbaf01a8d4721.patch   
Mon May 07 13:58:42 2007 +0100
@@ -0,0 +1,28 @@
+--- ./arch/ia64/kernel/smp.c.orig      2007-05-02 19:00:01.000000000 +0900
++++ ./arch/ia64/kernel/smp.c   2007-05-02 19:04:32.000000000 +0900
+@@ -328,10 +328,14 @@ int
+ smp_call_function (void (*func) (void *info), void *info, int nonatomic, int 
wait)
+ {
+       struct call_data_struct data;
+-      int cpus = num_online_cpus()-1;
++      int cpus;
+ 
+-      if (!cpus)
++      spin_lock(&call_lock);
++      cpus = num_online_cpus()-1;
++      if (!cpus) {
++              spin_unlock(&call_lock);
+               return 0;
++      }
+ 
+       /* Can deadlock when called with interrupts disabled */
+       WARN_ON(irqs_disabled());
+@@ -343,8 +347,6 @@ smp_call_function (void (*func) (void *i
+       if (wait)
+               atomic_set(&data.finished, 0);
+ 
+-      spin_lock(&call_lock);
+-
+       call_data = &data;
+       mb();   /* ensure store to call_data precedes setting of IPI_CALL_FUNC 
*/
+       send_IPI_allbutself(IPI_CALL_FUNC);
diff -r 33fbff91ebe4 -r 9d0dbe9c4d6b patches/linux-2.6.18/series
--- a/patches/linux-2.6.18/series       Mon May 07 13:57:18 2007 +0100
+++ b/patches/linux-2.6.18/series       Mon May 07 13:58:42 2007 +0100
@@ -21,3 +21,4 @@ softlockup-no-idle-hz.patch
 softlockup-no-idle-hz.patch
 allow-i386-crash-kernels-to-handle-x86_64-dumps.patch
 allow-i386-crash-kernels-to-handle-x86_64-dumps-fix.patch
+git-5ee7737379b1d7f0c977c0f1661fbaf01a8d4721.patch

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