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
..
boot_ioremap.c
discontig.c	[PATCH] i386: Remove extern declaration from mm/discontig.c, put in header.	2007-02-13 13:26:26 +01:00
extable.c
fault.c	[PATCH] x86: simplify notify_page_fault()	2007-02-13 13:26:23 +01:00
highmem.c	[PATCH] Proper fix for highmem kmap_atomic functions for VMI for 2.6.21	2007-04-08 19:47:55 -07:00
hugetlbpage.c
init.c	[PATCH] MM: page allocation hooks for VMI backend	2007-02-13 13:26:21 +01:00
ioremap.c
Makefile
mmap.c
pageattr.c	[PATCH] MM: page allocation hooks for VMI backend	2007-02-13 13:26:21 +01:00
pgtable.c	[PATCH] i386: vMI backend for paravirt-ops	2007-02-13 13:26:21 +01:00