Hi
This got missed during the previous update for not doing shortcut
since it introduces race in IPI, when using flat mode.
The earlier patches addressed send_IPI_allbutself, this one
take care of the sendall() case as well.
Andrew: Please consider for -mm
--
Cheers,
Ashok Raj
- Open Source Technology Center
Signed-off-by: Ashok Raj <[email protected]>
--------------------------------------------------------
arch/x86_64/kernel/genapic_flat.c | 4 ++++
1 files changed, 4 insertions(+)
Index: linux-2.6.14-rc1-mm1/arch/x86_64/kernel/genapic_flat.c
===================================================================
--- linux-2.6.14-rc1-mm1.orig/arch/x86_64/kernel/genapic_flat.c
+++ linux-2.6.14-rc1-mm1/arch/x86_64/kernel/genapic_flat.c
@@ -94,7 +94,11 @@ static void flat_send_IPI_allbutself(int
static void flat_send_IPI_all(int vector)
{
+#ifndef CONFIG_HOTPLUG_CPU
__send_IPI_shortcut(APIC_DEST_ALLINC, vector, APIC_DEST_LOGICAL);
+#else
+ flat_send_IPI_mask(cpu_online_map, vector);
+#endif
}
static int flat_apic_id_registered(void)
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
| |
 |