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0944fe3f4a
linux/arch
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Martin Schwidefsky 0944fe3f4a s390/mm: implement software referenced bits 
The last remaining use for the storage key of the s390 architecture
is reference counting. The alternative is to make page table entries
invalid while they are old. On access the fault handler marks the
pte/pmd as young which makes the pte/pmd valid if the access rights
allow read access. The pte/pmd invalidations required for software
managed reference bits cost a bit of performance, on the other hand
the RRBE/RRBM instructions to read and reset the referenced bits are
quite expensive as well.

Reviewed-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-08-29 13:20:11 +02:00
..
alpha alpha: Use handle_percpu_irq for the timer interrupt 2013-07-19 13:54:26 -07:00
arc ARC: SMP build breakage 2013-07-26 15:34:22 -07:00
arm Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm 2013-08-16 16:52:29 -07:00
arm64 Fix TLB gather virtual address range invalidation corner cases 2013-08-16 08:52:46 -07:00
avr32 avr32: boards/atngw100/mrmt.c: fix building error 2013-08-08 14:16:22 +02:00
blackfin Merge branch 'cpuinit_phase2' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux 2013-07-18 10:50:26 -07:00
c6x
cris cris: delete __cpuinit usage from all cris files 2013-07-14 19:36:54 -04:00
frv frv: delete __cpuinit usage from all frv files 2013-07-14 19:36:55 -04:00
h8300 net: rename busy poll socket op and globals 2013-07-10 17:08:27 -07:00
hexagon arch: *: Kconfig: add "kernel/Kconfig.freezer" to "arch/*/Kconfig" 2013-08-13 17:57:49 -07:00
ia64 Fix TLB gather virtual address range invalidation corner cases 2013-08-16 08:52:46 -07:00
m32r m32r: delete __cpuinit usage from all m32r files 2013-07-14 19:36:55 -04:00
m68k m68k: Truncate base in do_div() 2013-08-14 11:46:30 +02:00
metag metag: delete __cpuinit usage from all metag files 2013-07-14 19:36:54 -04:00
microblaze microblaze: fix clone syscall 2013-08-13 17:57:48 -07:00
mips MIPS: BMIPS: fix hardware interrupt routing for boot CPU != 0 2013-08-05 13:35:18 +02:00
mn10300 net: rename busy poll socket op and globals 2013-07-10 17:08:27 -07:00
openrisc arch: *: Kconfig: add "kernel/Kconfig.freezer" to "arch/*/Kconfig" 2013-08-13 17:57:49 -07:00
parisc parisc: Fix interrupt routing for C8000 serial ports 2013-07-31 23:42:32 +02:00
powerpc powerpc/tm: Fix context switching TAR, PPR and DSCR SPRs 2013-08-09 18:07:12 +10:00
s390 s390/mm: implement software referenced bits 2013-08-29 13:20:11 +02:00
score arch: *: Kconfig: add "kernel/Kconfig.freezer" to "arch/*/Kconfig" 2013-08-13 17:57:49 -07:00
sh Fix TLB gather virtual address range invalidation corner cases 2013-08-16 08:52:46 -07:00
sparc sparc: delete __cpuinit/__CPUINIT usage from all users 2013-07-14 19:36:52 -04:00
tile tile: delete __cpuinit usage from all tile files 2013-07-14 19:36:54 -04:00
um Fix TLB gather virtual address range invalidation corner cases 2013-08-16 08:52:46 -07:00
unicore32 reboot: move arch/x86 reboot= handling to generic kernel 2013-07-09 10:33:29 -07:00
x86 Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-08-19 09:18:29 -07:00
xtensa xtensa: delete __cpuinit usage from all xtensa files 2013-07-14 19:36:56 -04:00
.gitignore
Kconfig microblaze: fix clone syscall 2013-08-13 17:57:48 -07:00