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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-07 08:44:24 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-07 08:44:24 -0700
commite3ebadd95cb621e2c7436f3d3646447ac9d5c16d (patch)
tree510b41550cc3751cfb565e3e2ba195a68b784a03 /arch/i386/kernel
parent15700770ef7c5d12e2f1659d2ddbeb3f658d9f37 (diff)
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Revert "[PATCH] x86: __pa and __pa_symbol address space separation"
This was broken. It adds complexity, for no good reason. Rather than separate __pa() and __pa_symbol(), we should deprecate __pa_symbol(), and preferably __pa() too - and just use "virt_to_phys()" instead, which is more readable and has nicer semantics. However, right now, just undo the separation, and make __pa_symbol() be the exact same as __pa(). That fixes the bugs this patch introduced, and we can do the fairly obvious cleanups later. Do the new __phys_addr() function (which is now the actual workhorse for the unified __pa()/__pa_symbol()) as a real external function, that way all the potential issues with compile/link-time optimizations of constant symbol addresses go away, and we can also, if we choose to, add more sanity-checking of the argument. Cc: Eric W. Biederman <ebiederm@xmission.com> Cc: Vivek Goyal <vgoyal@in.ibm.com> Cc: Andi Kleen <ak@suse.de> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/i386/kernel')
-rw-r--r--arch/i386/kernel/alternative.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/i386/kernel/alternative.c b/arch/i386/kernel/alternative.c
index e5cec66..d8cda14 100644
--- a/arch/i386/kernel/alternative.c
+++ b/arch/i386/kernel/alternative.c
@@ -390,8 +390,8 @@ void __init alternative_instructions(void)
_text, _etext);
}
free_init_pages("SMP alternatives",
- __pa_symbol(&__smp_locks),
- __pa_symbol(&__smp_locks_end));
+ (unsigned long)__smp_locks,
+ (unsigned long)__smp_locks_end);
} else {
alternatives_smp_module_add(NULL, "core kernel",
__smp_locks, __smp_locks_end,