Andi Kleen wrote:
On Wednesday 30 August 2006 20:59, H. Peter Anvin wrote:
Alon Bar-Lev wrote:
This is not entirely true...
All architectures sets saved_command_line variable...
So I can add __init to the saved_command_line and
copy its contents into kmalloced persistence_command_line at
main.c.
My opinion is that you should change saved_command_line (which already
implies a copy) to be the kmalloc'd version and call the fixed-sized
buffer something else.
It might be safer to rename everything. Then all users could be caught
and audited. This would ensure saved_command_line is not accessed
before the kmalloc'ed copy exists.
Disadvantage: more architectures to change.
That would definitely be the safest option, and probably is the way to go.
-hpa
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