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181bde801a
linux_dsm_epyc7002/arch/um/include
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Jeff Dike 181bde801a uml: fix timer switching 
Fix up the switching between virtual and real timers.  The idle loop sleeps,
so the timer at that point must be real time.  At all other times, the timer
must be virtual.  Even when userspace is running, and the kernel is asleep,
the virtual timer is correct because the process timer will be running and the
process timer will be firing.

The timer switch used to be in the context switch and timer handler code.
This is moved to the idle loop and the signal handler, making it much more
clear why it is happening.

switch_timers now returns the old timer type so that it may be restored.  The
signal handler uses this in order to restore the previous timer type when it
returns.

Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16 09:43:08 -07:00
..
skas uml: fold mmu_context_skas into mm_context 2007-10-16 09:43:06 -07:00
sysdep-i386 uml: eliminate floating point state from register file 2007-10-16 09:43:07 -07:00
sysdep-ia64 [PATCH] uml: S390 preparation, abstract host page fault data 2005-05-05 16:36:36 -07:00
sysdep-ppc Remove all inclusions of <linux/config.h> 2006-10-04 03:38:54 -04:00
sysdep-x86_64 uml: eliminate floating point state from register file 2007-10-16 09:43:07 -07:00
aio.h [PATCH] uml: revert block driver use of host AIO 2005-10-12 08:22:26 -07:00
arch.h uml: remove code made redundant by CHOOSE_MODE removal 2007-10-16 09:43:05 -07:00
as-layout.h uml: remove code made redundant by CHOOSE_MODE removal 2007-10-16 09:43:05 -07:00
chan_kern.h uml: handle errors on opening host side of consoles 2007-07-16 09:05:38 -07:00
chan_user.h uml: SIGIO support cleanup 2007-07-16 09:05:38 -07:00
common-offsets.h uml: eliminate hz() 2007-10-16 09:43:08 -07:00
elf_user.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
frame_kern.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
init.h [PATCH] uml: fix ((unused)) attribute 2006-02-24 14:31:37 -08:00
initrd.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
irq_kern.h IRQ: Use the new typedef for interrupt handler function pointers 2006-10-09 12:19:47 +01:00
irq_user.h uml: style fixes pass 3 2007-10-16 09:43:05 -07:00
kern_util.h uml: eliminate hz() 2007-10-16 09:43:08 -07:00
kern.h [PATCH] uml: fix declaration of exit() 2006-03-27 08:44:37 -08:00
line.h [PATCH] uml: fix previous console locking 2007-02-11 10:51:22 -08:00
longjmp.h [PATCH] uml: make UML_SETJMP always safe 2006-10-11 11:14:20 -07:00
mconsole_kern.h [PATCH] uml: console whitespace and comment tidying 2007-02-11 10:51:21 -08:00
mconsole.h uml: remove os_* usage from userspace files 2007-10-16 09:43:06 -07:00
mem_kern.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mem_user.h [PATCH] UML: Hotplug memory, take 2 2006-03-31 12:18:50 -08:00
mem.h uml: remove __u64 usage from physical memory subsystem 2007-10-16 09:43:05 -07:00
misc_constants.h [PATCH] uml: move libc-dependent irq code to os-Linux 2006-03-27 08:44:37 -08:00
net_kern.h uml: Replace one-element array with zero-element array 2007-05-07 12:13:02 -07:00
net_user.h uml: network interface hotplug error handling 2007-05-07 12:13:00 -07:00
os.h uml: fix timer switching 2007-10-16 09:43:08 -07:00
process.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ptrace_user.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
registers.h uml: floating point signal delivery fixes 2007-10-16 09:43:07 -07:00
sigcontext.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sigio.h [PATCH] uml: SIGIO formatting fixes 2007-02-11 10:51:23 -08:00
signal_kern.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
skas_ptrace.h [PATCH] uml: header and code cleanup 2005-05-05 16:36:39 -07:00
skas_ptregs.h [PATCH] uml makefiles sanitized 2005-09-29 08:46:26 -07:00
syscall.h [PATCH] uml: system call path cleanup 2005-09-05 00:06:23 -07:00
sysrq.h [PATCH] uml: stack dump fix 2005-05-28 16:46:13 -07:00
task.h uml: remove code made redundant by CHOOSE_MODE removal 2007-10-16 09:43:05 -07:00
tempfile.h [PATCH] uml: locking comments in memory and tempfile code 2007-02-11 10:51:23 -08:00
tlb.h uml: clean up tlb flush path 2007-10-16 09:43:06 -07:00
ubd_user.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
um_malloc.h uml: Eliminate kernel allocator wrappers 2007-07-16 09:05:38 -07:00
um_mmu.h uml: fold mmu_context_skas into mm_context 2007-10-16 09:43:06 -07:00
um_uaccess.h uml: get rid of do_longjmp 2007-10-16 09:43:05 -07:00
user.h uml: stop saving process FP state 2007-10-16 09:43:05 -07:00