Zachary Amsden 49f1971051 [PATCH] Proper fix for highmem kmap_atomic functions for VMI for 2.6.21 ...

Since lazy MMU batching mode still allows interrupts to enter, it is
possible for interrupt handlers to try to use kmap_atomic, which fails when
lazy mode is active, since the PTE update to highmem will be delayed.  The
best workaround is to issue an explicit flush in kmap_atomic_functions
case; this is the only way nested PTE updates can happen in the interrupt
handler.

Thanks to Jeremy Fitzhardinge for noting the bug and suggestions on a fix.

This patch gets reverted again when we start 2.6.22 and the bug gets fixed
differently.

Signed-off-by: Zachary Amsden <zach@vmware.com>
Cc: Andi Kleen <ak@muc.de>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2007-04-08 19:47:55 -07:00

..

alpha

[PATCH] Dynamic kernel command-line: alpha

2007-02-12 09:48:37 -08:00

arm

[ARM] Export dma_channel_active()

2007-03-31 21:36:53 +01:00

arm26

[PATCH] arch/arm26/kernel/entry.S: remove dead code

2007-03-01 14:53:35 -08:00

avr32

[PATCH] gpio_direction_output() needs an initial value

2007-03-16 19:25:04 -07:00

cris

[PATCH] MSI-X: fix resume crash

2007-03-28 13:59:37 -07:00

frv

[PATCH] MSI-X: fix resume crash

2007-03-28 13:59:37 -07:00

h8300

[PATCH] Declare init_irq_proc before we use it.

2007-02-19 14:21:50 -08:00

i386

[PATCH] Proper fix for highmem kmap_atomic functions for VMI for 2.6.21

2007-04-08 19:47:55 -07:00

ia64

[IA64] Fix arch/ia64/pci/pci.c:571: warning: `return' with a value

2007-03-29 15:41:37 -07:00

m32r

Various typo fixes.

2007-02-17 19:07:33 +01:00

m68k

[PATCH] Declare init_irq_proc before we use it.

2007-02-19 14:21:50 -08:00

m68knommu

[PATCH] m68knommu: remove local_bh_count

2007-03-06 18:08:38 -08:00

mips

[MIPS] SMTC: Fix recursion in instant IPI replay code.

2007-03-29 23:46:36 +01:00

parisc

[PARISC] clocksource: Move update_cr16_clocksource later in boot

2007-02-26 22:21:22 -05:00

powerpc

[POWERPC] qe: Fix QUICC Engine SDMA setup errors

2007-03-29 14:33:42 -05:00

ppc

mv643xx_eth: Place explicit port number in mv643xx_eth_platform_data

2007-03-06 06:14:54 -05:00

s390

[S390] kprobes: Align probe address.

2007-03-26 20:43:46 +02:00

sh

sh: Kill bogus GCC4 symbol exports.

2007-03-28 17:24:47 +09:00

sh64

[PATCH] sysctl: remove insert_at_head from register_sysctl

2007-02-14 08:09:59 -08:00

sparc

[SPARC32]: Fix SMP build regression

2007-03-26 21:49:13 -07:00

sparc64

[SPARC64]: store-init needs trailing membar.

2007-03-19 13:27:33 -07:00

um

[PATCH] uml: fix unreasonably long udelay

2007-04-02 10:06:08 -07:00

v850

kbuild: Replace remaining "depends" with "depends on"

2007-02-17 19:05:24 +01:00

x86_64

[PATCH] x86: Don't probe for DDC on VBE1.2

2007-04-02 12:14:12 +02:00

xtensa

[PATCH] Dynamic kernel command-line: xtensa

2007-02-12 09:48:39 -08:00