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Commit cf39cc3b authored Apr 15, 2008 by Kyle McMartin Committed by Linus Torvalds Apr 15, 2008

[PARISC] fix signal trampoline cache flushing



The signal trampolines were accidently flushing the kernel I$ instead of
the users.  Fix that up, and also add a missing user D$ flush while
we're at it.

Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent 093a07e2

arch/parisc/kernel/signal.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -534,7 +534,8 @@ insert_restart_trampoline(struct pt_regs *regs)
		* Flushing one cacheline is cheap.
		* "sync" on bigger (> 4 way) boxes is not.
		*/
		flush_icache_range(regs->gr[30], regs->gr[30] + 4);
		flush_user_dcache_range(regs->gr[30], regs->gr[30] + 4);
		flush_user_icache_range(regs->gr[30], regs->gr[30] + 4);

		regs->gr[31] = regs->gr[30] + 8;
		/* Preserve original r28. */