linux.git/arch/arm64/include/asm/vmap_stack.h, branch v5.1 Linux kernel source tree arm64: Add vmap_stack header file 2018-01-13T10:45:03+00:00 James Morse james.morse@arm.com 2018-01-08T15:38:10+00:00 ed8b20d457d72e9e2a30533b436fdb4ea1c70b38 Today the arm64 arch code allocates an extra IRQ stack per-cpu. If we also have SDEI and VMAP stacks we need two extra per-cpu VMAP stacks. Move the VMAP stack allocation out to a helper in a new header file. This avoids missing THREADINFO_GFP, or getting the all-important alignment wrong. Signed-off-by: James Morse <james.morse@arm.com> Reviewed-by: Catalin Marinas <catalin.marinas@arm.com> Reviewed-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> 
Today the arm64 arch code allocates an extra IRQ stack per-cpu. If we
also have SDEI and VMAP stacks we need two extra per-cpu VMAP stacks.

Move the VMAP stack allocation out to a helper in a new header file.
This avoids missing THREADINFO_GFP, or getting the all-important alignment
wrong.

Signed-off-by: James Morse <james.morse@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>