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arm64: select HAVE_ARCH_VMAP_STACK by default [2/3]
authortao zeng <tao.zeng@amlogic.com>
Thu, 16 Aug 2018 06:42:12 +0000 (02:42 -0400)
committerJianxin Pan <jianxin.pan@amlogic.com>
Tue, 21 Aug 2018 11:15:47 +0000 (04:15 -0700)
commitd560a7683c108df8d1b420f9c02a60e3d7e63c9d
tree57cec576f330f6110566326e0455749f50d60987tree | snapshot
parent752b2765ca955a9bb7d2da30b4ea7c8ecfd8da44commit | diff
arm64: select HAVE_ARCH_VMAP_STACK by default [2/3]

PD#171358

On arm64, task stack is 16KB and need order 2 when create a task.
It's easy get a failed allocation result if memory is fragmentation
after long time of using. Using vmap to allocate task stack can help
to avoid this problem.

Change-Id: I3a8a3fbf626eb30e0e547ed0605be02bb3391e5a
Signed-off-by: tao zeng <tao.zeng@amlogic.com>
arch/arm64/Kconfig diff | blob | history
Domain: System / Kernel;