Displaying 8 results from an estimated 8 matches for "config_syscall_".
2014 Oct 29
2
[PATCH v3 3/3] x86: Support compiling out userspace I/O (iopl and ioperm)
...ut that tends to
produce a net increase in lines of code, as well as duplicating all the
function prototypes, which to me seems more error-prone. If the
stub versions contained any code, rather than just becoming no-ops, I'd
definitely do that.
> Another nit may be that we should call this CONFIG_SYSCALL_IOPL or
> CONFIG_SYSCALL_IOPERM in keeping with the other CONFIG_SYSCALL_*
> naming thread? Again, I don't really care strongly beyond really
> wanting to use this new feature! :)
I don't feel strongly about the naming. Ingo?
> Thanks for working on this!
No problem. I look...
2014 Oct 29
2
[PATCH v3 3/3] x86: Support compiling out userspace I/O (iopl and ioperm)
...ut that tends to
produce a net increase in lines of code, as well as duplicating all the
function prototypes, which to me seems more error-prone. If the
stub versions contained any code, rather than just becoming no-ops, I'd
definitely do that.
> Another nit may be that we should call this CONFIG_SYSCALL_IOPL or
> CONFIG_SYSCALL_IOPERM in keeping with the other CONFIG_SYSCALL_*
> naming thread? Again, I don't really care strongly beyond really
> wanting to use this new feature! :)
I don't feel strongly about the naming. Ingo?
> Thanks for working on this!
No problem. I look...
2014 Oct 29
0
[PATCH v3 3/3] x86: Support compiling out userspace I/O (iopl and ioperm)
...s well as duplicating all the
> function prototypes, which to me seems more error-prone. If the
> stub versions contained any code, rather than just becoming no-ops, I'd
> definitely do that.
>
I concur with this style choice.
>> Another nit may be that we should call this CONFIG_SYSCALL_IOPL or
>> CONFIG_SYSCALL_IOPERM in keeping with the other CONFIG_SYSCALL_*
>> naming thread? Again, I don't really care strongly beyond really
>> wanting to use this new feature! :)
>
> I don't feel strongly about the naming. Ingo?
It is sort of a special case her...
2014 Oct 29
0
[PATCH v3 3/3] x86: Support compiling out userspace I/O (iopl and ioperm)
...copy_io_bitmap(struct task_struct *me,
struct task_struct *p)
{
return 0;
}
...remaining functions...
#endif /* CONFIG_X86_IOPORT */
But this is entirely a style decision, so I leave it up to the x86
maintainers ...
Another nit may be that we should call this CONFIG_SYSCALL_IOPL or
CONFIG_SYSCALL_IOPERM in keeping with the other CONFIG_SYSCALL_*
naming thread? Again, I don't really care strongly beyond really
wanting to use this new feature! :)
Thanks for working on this!
-Kees
> +
> static inline int copy_io_bitmap(struct task_struct *me,
>...
2014 Oct 29
2
[PATCH v3 3/3] x86: Support compiling out userspace I/O (iopl and ioperm)
On the vast majority of modern systems, no processes will use the
userspsace I/O syscalls, iopl and ioperm. Add a new config option,
CONFIG_X86_IOPORT, to support configuring them out of the kernel
entirely. Most current systems do not run programs using these
syscalls, so X86_IOPORT does not depend on EXPERT, though it does still
default to y.
In addition to saving a significant amount of
2014 Oct 29
2
[PATCH v3 3/3] x86: Support compiling out userspace I/O (iopl and ioperm)
On the vast majority of modern systems, no processes will use the
userspsace I/O syscalls, iopl and ioperm. Add a new config option,
CONFIG_X86_IOPORT, to support configuring them out of the kernel
entirely. Most current systems do not run programs using these
syscalls, so X86_IOPORT does not depend on EXPERT, though it does still
default to y.
In addition to saving a significant amount of
2014 Oct 29
4
[PATCH v3 1/3] x86: process: Unify 32-bit and 64-bit copy_thread I/O bitmap handling
The 32-bit and 64-bit versions of copy_thread have functionally
identical handling for copying the I/O bitmap, modulo differences in
error handling. Clean up the error paths in both by moving the copy of
the I/O bitmap to the end, to eliminate the need to free it if
subsequent copy steps fail; move the resulting identical code to a
static inline in a common header.
Signed-off-by: Josh Triplett
2014 Oct 29
4
[PATCH v3 1/3] x86: process: Unify 32-bit and 64-bit copy_thread I/O bitmap handling
The 32-bit and 64-bit versions of copy_thread have functionally
identical handling for copying the I/O bitmap, modulo differences in
error handling. Clean up the error paths in both by moving the copy of
the I/O bitmap to the end, to eliminate the need to free it if
subsequent copy steps fail; move the resulting identical code to a
static inline in a common header.
Signed-off-by: Josh Triplett