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| author | Rusty Russell <rusty@rustcorp.com.au> | 2007-05-02 19:27:09 +0200 |
|---|---|---|
| committer | Andi Kleen <andi@basil.nowhere.org> | 2007-05-02 19:27:09 +0200 |
| commit | eab0c72aecd7982b2c848f7d493ba379efcef15e (patch) | |
| tree | 760b05a1f4446a8a1d316d7534b94b18b8bb1b69 | |
| parent | 692174b97d5b871f4b0f648b1fb17aa37b955876 (diff) | |
| download | talos-obmc-linux-eab0c72aecd7982b2c848f7d493ba379efcef15e.tar.gz talos-obmc-linux-eab0c72aecd7982b2c848f7d493ba379efcef15e.zip | |
[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>
| -rw-r--r-- | include/asm-x86_64/desc.h | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/include/asm-x86_64/desc.h b/include/asm-x86_64/desc.h index 7726e74db536..ac991b5ca0fd 100644 --- a/include/asm-x86_64/desc.h +++ b/include/asm-x86_64/desc.h @@ -135,16 +135,13 @@ static inline void set_ldt_desc(unsigned cpu, void *addr, int size) (info)->useable == 0 && \ (info)->lm == 0) -#if TLS_SIZE != 24 -# error update this code. -#endif - static inline void load_TLS(struct thread_struct *t, unsigned int cpu) { + unsigned int i; u64 *gdt = (u64 *)(cpu_gdt(cpu) + GDT_ENTRY_TLS_MIN); - gdt[0] = t->tls_array[0]; - gdt[1] = t->tls_array[1]; - gdt[2] = t->tls_array[2]; + + for (i = 0; i < GDT_ENTRY_TLS_ENTRIES; i++) + gdt[i] = t->tls_array[i]; } /* |
