Hi Ingo and Thomas, Please consider pulling for x86/asm. The sysret stuff hasn't been in -next, but it's been floating around for a while, and got a reasonably favorable reception.
If you think it's too late for the sysret stuff for 3.20, then please pull just "x86, traps: Fix ist_enter from userspace" instead. It fixes a regression. Thanks, Andy The following changes since commit 772a9aca12567badb5b9caf2af249a5991f47ea8: Merge tag 'pr-20150114-x86-entry' of git://git.kernel.org/pub/scm/linux/kernel/git/luto/linux into x86/asm (2015-01-28 15:33:26 +0100) are available in the git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/luto/linux.git tags/pr-20150201-x86-entry for you to fetch changes up to 96b6352c12711d5c0bb7157f49c92580248e8146: x86_64, entry: Remove the syscall exit audit and schedule optimizations (2015-02-01 04:03:02 -0800) ---------------------------------------------------------------- x86: Entry cleanups and a bugfix for 3.20 This fixes a bug in the RCU code I added in ist_enter. It also includes the sysret stuff discussed here: http://lkml.kernel.org/g/cover.1421453410.git.luto%40amacapital.net ---------------------------------------------------------------- Andy Lutomirski (3): x86, traps: Fix ist_enter from userspace x86_64, entry: Use sysret to return to userspace when possible x86_64, entry: Remove the syscall exit audit and schedule optimizations arch/x86/kernel/entry_64.S | 106 +++++++++++++++++++++++++-------------------- arch/x86/kernel/traps.c | 25 ++++++++--- 2 files changed, 77 insertions(+), 54 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
