Re: [01/18] x86/asm/64: Remove the restore_c_regs_and_iret label

2017-11-09 Thread kemi
Some performance regression/improvement is reported by LKP-tools for this patch series tested with Intel Atom processor. So, post the data here for your reference. Branch:x86/entry_consolidation Commit id: base:50da9d439392fdd91601d36e7f05728265bff262 head:69af865668fdb86a95e4e948b1f48b

Re: [PATCH 01/18] x86/asm/64: Remove the restore_c_regs_and_iret label

2017-10-26 Thread Borislav Petkov
On Thu, Oct 26, 2017 at 01:26:33AM -0700, Andy Lutomirski wrote: > The only user was the 64-bit opportunistic SYSRET failure path, and > that path didn't really need it. This change makes the > opportunistic SYSRET code a bit more straightforward and gets rid of > the label. > > Signed-off-by: An

[PATCH 01/18] x86/asm/64: Remove the restore_c_regs_and_iret label

2017-10-26 Thread Andy Lutomirski
The only user was the 64-bit opportunistic SYSRET failure path, and that path didn't really need it. This change makes the opportunistic SYSRET code a bit more straightforward and gets rid of the label. Signed-off-by: Andy Lutomirski --- arch/x86/entry/entry_64.S | 5 ++--- 1 file changed, 2 in