kernel/linux.git/arch/um/include/shared/os.h, branch linux-5.3.y

um: Pass nsecs to os timer functions

2019-07-02T21:27:29+00:00

This makes the code clearer and lets the time travel patch have the actual time used for these functions in just one place. Signed-off-by: Johannes Berg Signed-off-by: Richard Weinberger

um: Timer code cleanup

2019-07-02T21:27:00+00:00

There are some unused functions, and some others that have unused arguments; clean up the timer code a bit. Signed-off-by: Johannes Berg Signed-off-by: Richard Weinberger

um: fix os_timer_one_shot()

2019-07-02T21:26:57+00:00

os_timer_one_shot() gets passed a value "unsigned long delta", so must not have an "int ticks" as that actually ends up being -1, and thus triggering a timer over and over again. Signed-off-by: Johannes Berg Signed-off-by: Richard Weinberger

um: Add support for DISCARD in the UBD Driver

2018-12-27T21:48:20+00:00

Support for DISCARD and WRITE_ZEROES in the ubd driver using fallocate. DISCARD is enabled by default and can be disabled using a new UBD command line flag. If the underlying fs on which the UBD image is stored does not support DISCARD the support for both DISCARD and WRITE_ZEROES is turned off. Signed-off-by: Anton Ivanov Signed-off-by: Richard Weinberger

Epoll based IRQ controller

2018-02-19T18:38:51+00:00

1. Removes the need to walk the IRQ/Device list to determine who triggered the IRQ. 2. Improves scalability (up to several times performance improvement for cases with 10s of devices). 3. Improves UML baseline IO performance for one disk + one NIC use case by up to 10%. 4. Introduces write poll triggered IRQs. 5. Prerequisite for introducing high performance mmesg family of functions in network IO. 6. Fixes RNG shutdown which was leaking a file descriptor Signed-off-by: Anton Ivanov Signed-off-by: Richard Weinberger

um: Fix FP register size for XSTATE/XSAVE

2017-09-13T20:24:38+00:00

Hard code max size. Taken from https://sourceware.org/git/?p=binutils-gdb.git;a=blob;f=gdb/common/x86-xstate.h Signed-off-by: Thomas Meyer Signed-off-by: Richard Weinberger

um: Add os_warn() for pre-boot warning/error messages

2017-07-05T21:18:02+00:00

Add os_warn() for printing out pre-boot warning/error messages in stderr. The messages via os_warn() are not suppressed by quiet option. Signed-off-by: Masami Hiramatsu Signed-off-by: Richard Weinberger

um: Add os_info() for pre-boot information messages

2017-07-05T21:17:16+00:00

Add os_info() for printing out pre-boot information level messages in stderr. The messages via os_info() are suppressed by "quiet" kernel command line. Signed-off-by: Masami Hiramatsu Signed-off-by: Richard Weinberger

x86/arch_prctl/64: Rename do_arch_prctl() to do_arch_prctl_64()

2017-03-20T15:10:32+00:00

In order to introduce new arch_prctls that are not 64 bit only, rename the existing 64 bit implementation to do_arch_prctl_64(). Also rename the second argument of that function from 'addr' to 'arg2', because it will no longer always be an address. Signed-off-by: Kyle Huey Reviewed-by: Andy Lutomirski Cc: Grzegorz Andrejczuk Cc: kvm@vger.kernel.org Cc: Radim Krčmář Cc: Peter Zijlstra Cc: Dave Hansen Cc: Andi Kleen Cc: linux-kselftest@vger.kernel.org Cc: Nadav Amit Cc: Robert O'Callahan Cc: Richard Weinberger Cc: "Rafael J. Wysocki" Cc: Borislav Petkov Cc: Len Brown Cc: Shuah Khan Cc: user-mode-linux-devel@lists.sourceforge.net Cc: Jeff Dike Cc: Alexander Viro Cc: user-mode-linux-user@lists.sourceforge.net Cc: David Matlack Cc: Boris Ostrovsky Cc: Dmitry Safonov Cc: linux-fsdevel@vger.kernel.org Cc: Paolo Bonzini Link: http://lkml.kernel.org/r/20170320081628.18952-5-khuey@kylehuey.com Signed-off-by: Thomas Gleixner

x86/arch_prctl: Rename 'code' argument to 'option'

2017-03-20T15:10:32+00:00

The x86 specific arch_prctl() arbitrarily changed prctl's 'option' to 'code'. Before adding new options, rename it. Signed-off-by: Kyle Huey Cc: Grzegorz Andrejczuk Cc: kvm@vger.kernel.org Cc: Radim Krčmář Cc: Peter Zijlstra Cc: Dave Hansen Cc: Andi Kleen Cc: linux-kselftest@vger.kernel.org Cc: Nadav Amit Cc: Robert O'Callahan Cc: Richard Weinberger Cc: "Rafael J. Wysocki" Cc: Borislav Petkov Cc: Andy Lutomirski Cc: Len Brown Cc: Shuah Khan Cc: user-mode-linux-devel@lists.sourceforge.net Cc: Jeff Dike Cc: Alexander Viro Cc: user-mode-linux-user@lists.sourceforge.net Cc: David Matlack Cc: Boris Ostrovsky Cc: Dmitry Safonov Cc: linux-fsdevel@vger.kernel.org Cc: Paolo Bonzini Link: http://lkml.kernel.org/r/20170320081628.18952-3-khuey@kylehuey.com Signed-off-by: Thomas Gleixner