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d090319312
So the sanitize_i387_state() function has the following purpose: on CPUs that support optimized xstate saving instructions, an FPU fpstate might end up having partially uninitialized data. This function initializes that data. Note that the function name is a misnomer and confusing on two levels, not only is it not i387 specific at all, but it is the exact opposite: it only matters on xstate CPUs. So rename sanitize_i387_state() and __sanitize_i387_state() to fpstate_sanitize_xstate() and __fpstate_sanitize_xstate(), to clearly express the purpose and usage of the function. We'll further clean up this function in the next patch. Cc: Andy Lutomirski <luto@amacapital.net> Cc: Borislav Petkov <bp@alien8.de> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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