From 5a6a4d4320aed1918bf79dfb6bd841317f33b8e9 Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Sat, 3 Sep 2005 15:55:43 -0700 Subject: [PATCH] ppc32: Don't sleep in flush_dcache_icache_page() flush_dcache_icache_page() will be called on an instruction page fault. We can't sleep in the fault handler, so use kmap_atomic() instead of just kmap() for the Book-E case. Signed-off-by: Roland Dreier Acked-by: Matt Porter Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ppc/mm/init.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'arch/ppc/mm/init.c') diff --git a/arch/ppc/mm/init.c b/arch/ppc/mm/init.c index 33ada72c733..32ee4971026 100644 --- a/arch/ppc/mm/init.c +++ b/arch/ppc/mm/init.c @@ -560,8 +560,9 @@ void flush_dcache_page(struct page *page) void flush_dcache_icache_page(struct page *page) { #ifdef CONFIG_BOOKE - __flush_dcache_icache(kmap(page)); - kunmap(page); + void *start = kmap_atomic(page, KM_PPC_SYNC_ICACHE); + __flush_dcache_icache(start); + kunmap_atomic(start, KM_PPC_SYNC_ICACHE); #elif CONFIG_8xx /* On 8xx there is no need to kmap since highmem is not supported */ __flush_dcache_icache(page_address(page)); -- cgit v1.2.3