linux/arch
Linus Torvalds ac6c9e2bed Merge branch 'safe-dirty-tlb-flush'
This merges the patch to fix possible loss of dirty bit on munmap() or
madvice(DONTNEED).  If there are concurrent writers on other CPU's that
have the unmapped/unneeded page in their TLBs, their writes to the page
could possibly get lost if a third CPU raced with the TLB flush and did
a page_mkclean() before the page was fully written.

Admittedly, if you unmap() or madvice(DONTNEED) an area _while_ another
thread is still busy writing to it, you deserve all the lost writes you
could get.  But we kernel people hold ourselves to higher quality
standards than "crazy people deserve to lose", because, well, we've seen
people do all kinds of crazy things.

So let's get it right, just because we can, and we don't have to worry
about it.

* safe-dirty-tlb-flush:
  mm: split 'tlb_flush_mmu()' into tlb flushing and memory freeing parts
2014-04-27 15:08:12 -07:00
..
alpha
arc ARC: Delete stale barrier.h 2014-04-18 13:49:15 -07:00
arm Merge branch 'safe-dirty-tlb-flush' 2014-04-27 15:08:12 -07:00
arm64 arm64: init: Move of_clk_init to time_init 2014-04-25 18:15:56 +01:00
avr32
blackfin
c6x
cris
frv
hexagon
ia64 mm: split 'tlb_flush_mmu()' into tlb flushing and memory freeing parts 2014-04-25 16:05:40 -07:00
m32r
m68k
metag
microblaze
mips Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-04-27 11:21:03 -07:00
mn10300
openrisc
parisc Merge branch 'parisc-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux 2014-04-17 13:21:35 -07:00
powerpc powerpc/mm: fix ".__node_distance" undefined 2014-04-18 16:40:08 -07:00
s390 Merge branch 'safe-dirty-tlb-flush' 2014-04-27 15:08:12 -07:00
score
sh mm: split 'tlb_flush_mmu()' into tlb flushing and memory freeing parts 2014-04-25 16:05:40 -07:00
sparc
tile
um mm: split 'tlb_flush_mmu()' into tlb flushing and memory freeing parts 2014-04-25 16:05:40 -07:00
unicore32
x86 Merge branch 'x86-vdso-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-04-22 09:09:06 -07:00
xtensa
.gitignore
Kconfig