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authorRafael J. Wysocki <rjw@sisk.pl>2007-10-18 03:04:54 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-18 14:37:20 -0700
commitefa4d2fb047b25a6be67fe92178a2a78da6b3f6a (patch)
tree82f2e7bc66d3867fcd4f66c424403d35b9d49812 /kernel/power/power.h
parentc30bb68c26ad7e9277f2d1dfed8347f329e1cf27 (diff)
Hibernation: Use temporary page tables for kernel text mapping on x86_64
Use temporary page tables for the kernel text mapping during hibernation restore on x86_64. Without the patch, the original boot kernel's page tables that represent the kernel text mapping are used while the core of the image kernel is being restored. However, in principle, if the boot kernel is not identical to the image kernel, the location of these page tables in the image kernel need not be the same, so we should create a safe copy of the kernel text mapping prior to restoring the core of the image kernel. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Pavel Machek <pavel@ucw.cz> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/power/power.h')
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