Messages in this thread Patch in this message | | | Date | Thu, 24 Apr 2008 11:03:40 -0400 | From | Mathieu Desnoyers <> | Subject | [patch 16/37] Add text_poke and sync_core to powerpc |
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- Needed on architectures where we must surround live instruction modification with "WP flag disable". - Turns into a memcpy on powerpc since there is no WP flag activated for instruction pages (yet..). - Add empty sync_core to powerpc so it can be used in architecture independent code.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> CC: Rusty Russell <rusty@rustcorp.com.au> CC: Christoph Hellwig <hch@infradead.org> CC: Paul Mackerras <paulus@samba.org> CC: Adrian Bunk <bunk@stusta.de> CC: Andi Kleen <andi@firstfloor.org> CC: mingo@elte.hu CC: akpm@osdl.org --- include/asm-powerpc/cacheflush.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
Index: linux-2.6-lttng/include/asm-powerpc/cacheflush.h =================================================================== --- linux-2.6-lttng.orig/include/asm-powerpc/cacheflush.h 2007-11-19 12:05:50.000000000 -0500 +++ linux-2.6-lttng/include/asm-powerpc/cacheflush.h 2007-11-19 13:27:36.000000000 -0500 @@ -63,7 +63,9 @@ extern void flush_dcache_phys_range(unsi #define copy_from_user_page(vma, page, vaddr, dst, src, len) \ memcpy(dst, src, len) - +#define text_poke memcpy +#define text_poke_early text_poke +#define sync_core() #ifdef CONFIG_DEBUG_PAGEALLOC /* internal debugging function */ -- Mathieu Desnoyers Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68
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