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linux/arch/i386/mm
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Andrew Morton 4150d3f549 revert "highmem: catch illegal nesting" 
Revert

	commit 656dad312f
	Author: Ingo Molnar <mingo@elte.hu>
	Date:   Sat Feb 10 01:46:36 2007 -0800

	[PATCH] highmem: catch illegal nesting

	Catch illegally nested kmap_atomic()s even if the page that is mapped by
	the 'inner' instance is from lowmem.

	This avoids spuriously zapped kmap-atomic ptes and turns hard to find
	crashes into clear asserts at the bug site.

Problem is, a get_zeroed_page(GFP_KERNEL) from interrupt context will trigger
this check if non-irq code on this CPU holds a KM_USER0 mapping.  But that
get_zeroed_page() will never be altering the kmap slot anyway due to the
GFP_KERNEL.

Cc: Christoph Lameter <clameter@sgi.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-09-11 17:21:27 -07:00
..
boot_ioremap.c [PATCH] paravirt: Add MMU virtualization to paravirt_ops 2006-12-07 02:14:08 +01:00
discontig.c x86: Fix discontigmem + non-HIGHMEM compile 2007-05-15 18:45:49 -07:00
extable.c
fault.c Fix lazy mode vmalloc synchronization for paravirt 2007-08-22 11:10:47 -07:00
highmem.c revert "highmem: catch illegal nesting" 2007-09-11 17:21:27 -07:00
hugetlbpage.c hugepage: fix broken check for offset alignment in hugepage mappings 2007-08-31 01:42:23 -07:00
init.c Replace CONFIG_SOFTWARE_SUSPEND with CONFIG_HIBERNATION 2007-07-29 16:45:38 -07:00
ioremap.c i386: fix iounmap's use of vm_struct's size field 2007-07-21 18:37:14 -07:00
Makefile
mmap.c Detach sched.h from mm.h 2007-05-21 09:18:19 -07:00
pageattr.c x86: Disable CLFLUSH support again 2007-08-11 15:58:13 -07:00
pgtable.c i386: pgd_{c,d}tor() static 2007-07-21 18:37:12 -07:00