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| author | Vincent Hanquez <vincent.hanquez@cl.cam.ac.uk> | 2005-06-23 09:08:46 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-06-23 18:45:14 +0200 |
| commit | 76381fee7e8feb4c22be636aa5d4765dbe4fbf9e (patch) | |
| tree | e12d15d64acb25dc35b4ab9d022314243181bc10 /arch/x86_64/mm | |
| parent | [PATCH] xen: x86_64: Add macro for debugreg (diff) | |
| download | linux-76381fee7e8feb4c22be636aa5d4765dbe4fbf9e.tar.xz linux-76381fee7e8feb4c22be636aa5d4765dbe4fbf9e.zip | |
[PATCH] xen: x86_64: use more usermode macro
Make use of the user_mode macro where it's possible. This is useful for Xen
because it will need only to redefine only the macro to a hypervisor call.
Signed-off-by: Vincent Hanquez <vincent.hanquez@cl.cam.ac.uk>
Cc: Ian Pratt <m+Ian.Pratt@cl.cam.ac.uk>
Cc: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/x86_64/mm')
| -rw-r--r-- | arch/x86_64/mm/fault.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86_64/mm/fault.c b/arch/x86_64/mm/fault.c index 57d3ab15a5c7..2f187986f940 100644 --- a/arch/x86_64/mm/fault.c +++ b/arch/x86_64/mm/fault.c @@ -74,7 +74,7 @@ static noinline int is_prefetch(struct pt_regs *regs, unsigned long addr, instr = (unsigned char *)convert_rip_to_linear(current, regs); max_instr = instr + 15; - if ((regs->cs & 3) != 0 && instr >= (unsigned char *)TASK_SIZE) + if (user_mode(regs) && instr >= (unsigned char *)TASK_SIZE) return 0; while (scan_more && instr < max_instr) { @@ -106,7 +106,7 @@ static noinline int is_prefetch(struct pt_regs *regs, unsigned long addr, /* Could check the LDT for lm, but for now it's good enough to assume that long mode only uses well known segments or kernel. */ - scan_more = ((regs->cs & 3) == 0) || (regs->cs == __USER_CS); + scan_more = (!user_mode(regs)) || (regs->cs == __USER_CS); break; case 0x60: |