| commit | def3c5d0a34e4b09b3cea4435c17209ad347104d | |
| author | H. Peter Anvin <hpa@zytor.com> | |
| Mon, 12 Oct 2009 21:09:07 +0000 (12 14:09 -0700) | ||
| committer | H. Peter Anvin <hpa@zytor.com> | |
| Mon, 12 Oct 2009 21:19:34 +0000 (12 14:19 -0700) | ||
| tree | f9a38b4908dc05a1a5c33a351cd821c0c49adad3 | treesnapshot (tar.gz zip) |
| parent | d93a8f829fe1d2f3002f2c6ddb553d12db420412 | commitdiff |
x86: use kernel_stack_pointer() in process_32.c
The way to obtain a kernel-mode stack pointer from a struct pt_regs in
32-bit mode is "subtle": the stack doesn't actually contain the stack
pointer, but rather the location where it would have been marks the
actual previous stack frame. For clarity, use kernel_stack_pointer()
instead of coding this weirdness explicitly.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
The way to obtain a kernel-mode stack pointer from a struct pt_regs in
32-bit mode is "subtle": the stack doesn't actually contain the stack
pointer, but rather the location where it would have been marks the
actual previous stack frame. For clarity, use kernel_stack_pointer()
instead of coding this weirdness explicitly.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
| arch/x86/kernel/process_32.c | diffblobblamehistory |