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authorJan Beulich <jbeulich@novell.com>2005-09-12 18:49:25 +0200
committerLinus Torvalds <torvalds@g5.osdl.org>2005-09-12 10:50:58 -0700
commit049cdefe19f95b67b06b70915cd8e4ae7173337a (patch)
tree42a0846ec18e3c4f705f8f167890675c5978a814 /arch/x86_64/kernel/traps.c
parentc47a3167d0454c0af5fb0a0322b01a0e3487798e (diff)
downloadop-kernel-dev-049cdefe19f95b67b06b70915cd8e4ae7173337a.zip
op-kernel-dev-049cdefe19f95b67b06b70915cd8e4ae7173337a.tar.gz
[PATCH] x86-64: reduce x86-64 bug frame by 4 bytes
As mentioned before, the size of the bug frame can be further reduced while continuing to use instructions to encode the information. Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/x86_64/kernel/traps.c')
-rw-r--r--arch/x86_64/kernel/traps.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/x86_64/kernel/traps.c b/arch/x86_64/kernel/traps.c
index 1dfeb07..b5e09e6 100644
--- a/arch/x86_64/kernel/traps.c
+++ b/arch/x86_64/kernel/traps.c
@@ -321,13 +321,13 @@ void handle_BUG(struct pt_regs *regs)
if (__copy_from_user(&f, (struct bug_frame *) regs->rip,
sizeof(struct bug_frame)))
return;
- if ((unsigned long)f.filename < __PAGE_OFFSET ||
+ if (f.filename >= 0 ||
f.ud2[0] != 0x0f || f.ud2[1] != 0x0b)
return;
- if (__get_user(tmp, f.filename))
- f.filename = "unmapped filename";
+ if (__get_user(tmp, (char *)(long)f.filename))
+ f.filename = (int)(long)"unmapped filename";
printk("----------- [cut here ] --------- [please bite here ] ---------\n");
- printk(KERN_ALERT "Kernel BUG at %.50s:%d\n", f.filename, f.line);
+ printk(KERN_ALERT "Kernel BUG at %.50s:%d\n", (char *)(long)f.filename, f.line);
}
#ifdef CONFIG_BUG
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