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authorEugene Surovegin <ebs@ebshome.net>2006-03-28 20:13:12 +0200
committerPaul Mackerras <paulus@samba.org>2006-03-29 04:44:15 +0200
commitbab70a4af737f623de5b034976a311055308ab86 (patch)
treef8c0e9463de01323db2cb1a62f4eb83adb5ce7ca /arch/m32r
parentMerge ../linux-2.6 (diff)
downloadlinux-bab70a4af737f623de5b034976a311055308ab86.tar.xz
linux-bab70a4af737f623de5b034976a311055308ab86.zip
[PATCH] lock PTE before updating it in 440/BookE page fault handler
Fix 44x and BookE page fault handler to correctly lock PTE before trying to pte_update() it, otherwise this PTE might be swapped out after pte_present() check but before pte_uptdate() call, resulting in corrupted PTE. This can happen with enabled preemption and low memory condition. Signed-off-by: Eugene Surovegin <ebs@ebshome.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/m32r')
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