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Commit be0a3912 authored by Chuck Ebbert's avatar Chuck Ebbert Committed by Linus Torvalds
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[PATCH] i386: more vsyscall documentation 



Document a limitation of vsyscall-sysenter, since patches to fix it have
been rejected.

Signed-off-by: default avatarChuck Ebbert <76306.1226@compuserve.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 635cf99a

arch/i386/kernel/vsyscall-sysenter.S

+3 −0
Original line number Diff line number Diff line
@@ -21,6 +21,9 @@ 
 * instruction clobbers %esp, the user's %esp won't even survive entry

 * into the kernel. We store %esp in %ebp. Code in entry.S must fetch

 * arg6 from the stack.

 *

 * You can not use this vsyscall for the clone() syscall because the

 * three dwords on the parent stack do not get copied to the child.

 */

	.text

	.globl __kernel_vsyscall