Messages in this thread | | | From | Andy Lutomirski <> | Date | Sun, 1 Feb 2015 04:11:50 -0800 | Subject | [GIT PULL] x86/asm changes for 3.20 |
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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(-)
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