kernel_optimize_test/arch
Jeremy Fitzhardinge 06fc732c33 xen: disable interrupts before saving in percpu
Impact: Fix race condition

xen_mc_batch has a small preempt race where it takes the address of a
percpu variable immediately before disabling interrupts, thereby
leaving a small window in which we may migrate to another cpu and save
the flags in the wrong percpu variable.  Disable interrupts before
saving the old flags in a percpu.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2009-02-03 17:22:40 -08:00
..
alpha alpha: fix the BUG() macro 2009-01-29 18:04:44 -08:00
arm mmc: Add a MX2/MX3 specific SDHC driver 2009-02-02 20:57:05 +01:00
avr32 eeprom: More consistent symbol names 2009-01-26 21:19:57 +01:00
blackfin eeprom: More consistent symbol names 2009-01-26 21:19:57 +01:00
cris Merge branch 'syscalls' of git://git390.osdl.marist.edu/pub/scm/linux-2.6 2009-01-14 19:58:40 -08:00
frv NOMMU: Make VMAs per MM as for MMU-mode linux 2009-01-08 12:04:47 +00:00
h8300 Merge branch 'syscalls' of git://git390.osdl.marist.edu/pub/scm/linux-2.6 2009-01-14 19:58:40 -08:00
ia64 Documentation: move DMA-mapping.txt to Doc/PCI/ 2009-01-29 18:19:29 -08:00
m32r eeprom: More consistent symbol names 2009-01-26 21:19:57 +01:00
m68k m68knommu: remove the no longer used PCI support option 2009-01-27 16:42:02 +10:00
m68knommu m68knommu: fix 5329 ColdFire periphal addressing 2009-01-27 16:42:03 +10:00
mips MIPS: Alchemy: time.c build fix 2009-01-30 21:33:01 +00:00
mn10300 [CVE-2009-0029] Rename old_readdir to sys_old_readdir 2009-01-14 14:15:15 +01:00
parisc Documentation: move DMA-mapping.txt to Doc/PCI/ 2009-01-29 18:19:29 -08:00
powerpc powerpc: Fix oops on some machines due to incorrect pr_debug() 2009-02-02 17:08:25 +11:00
s390 [S390] Add missing compat system call wrappers. 2009-01-23 16:40:29 +01:00
sh Merge branch 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6 2009-01-26 15:11:41 -08:00
sparc Merge branch 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6 2009-01-26 15:11:41 -08:00
um mm: invoke oom-killer from page fault 2009-01-06 15:58:58 -08:00
x86 xen: disable interrupts before saving in percpu 2009-02-03 17:22:40 -08:00
xtensa byteorder: make swab.h include asm/swab.h like a regular header 2009-01-14 19:56:50 -08:00
.gitignore
Kconfig [CVE-2009-0029] System call wrapper infrastructure 2009-01-14 14:15:16 +01:00