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[PATCH] x86-64: Introduce load_TLS to the "for" loop.
GCC (4.1 at least) unrolls it anyway, but I can't believe this code was ever justifiable. (I've also submitted a patch which cleans up i386, which is even uglier). Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Andi Kleen <ak@suse.de> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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1 changed files with 4 additions and 7 deletions
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@ -135,16 +135,13 @@ static inline void set_ldt_desc(unsigned cpu, void *addr, int size)
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(info)->useable == 0 && \
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(info)->lm == 0)
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#if TLS_SIZE != 24
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# error update this code.
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#endif
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static inline void load_TLS(struct thread_struct *t, unsigned int cpu)
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{
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unsigned int i;
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u64 *gdt = (u64 *)(cpu_gdt(cpu) + GDT_ENTRY_TLS_MIN);
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gdt[0] = t->tls_array[0];
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gdt[1] = t->tls_array[1];
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gdt[2] = t->tls_array[2];
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for (i = 0; i < GDT_ENTRY_TLS_ENTRIES; i++)
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gdt[i] = t->tls_array[i];
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}
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/*
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