android_kernel_xiaomi_sm8350/arch/sparc64/mm
David S. Miller a9546f59e9 [PATCH] sparc64: Do not flush dcache for ZERO_PAGE.
This case actually can get exercised a lot during an ELF
coredump of a process which contains a lot of non-COW'd
anonymous pages.  GDB has this test case which in partiaular
creates near terabyte process full of ZERO_PAGEes.  It takes
forever to just walk through the page tables because of
all of these spurious cache flushes on sparc64.

With this change it takes only a second or so.

Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-17 18:03:09 -07:00
..
extable.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
fault.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
generic.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
hugetlbpage.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
init.c [PATCH] sparc64: Do not flush dcache for ZERO_PAGE. 2005-04-17 18:03:09 -07:00
Makefile Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
tlb.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ultra.S Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00