This is not a small function, and it's used in several places, one of them a popular module (KVM).
Move the function out of line. This saves a bit of text, even with the symbol export overhead: text data bss dec hex filename 12566052 1619504 1089536 15275092 e91454 vmlinux.before 12566046 1619504 1089536 15275086 e9144e vmlinux.after Reviewed-by: Borislav Petkov <[email protected]> Cc: Andy Lutomirski <[email protected]> Cc: Dave Hansen <[email protected]> Cc: Fenghua Yu <[email protected]> Cc: H. Peter Anvin <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Oleg Nesterov <[email protected]> Cc: Thomas Gleixner <[email protected]> Signed-off-by: Ingo Molnar <[email protected]> --- arch/x86/include/asm/fpu-internal.h | 11 +---------- arch/x86/kernel/i387.c | 12 ++++++++++++ 2 files changed, 13 insertions(+), 10 deletions(-) diff --git a/arch/x86/include/asm/fpu-internal.h b/arch/x86/include/asm/fpu-internal.h index 21000f0f0ae1..bdbba1a4de69 100644 --- a/arch/x86/include/asm/fpu-internal.h +++ b/arch/x86/include/asm/fpu-internal.h @@ -569,16 +569,7 @@ static inline unsigned short get_fpu_mxcsr(struct task_struct *tsk) } } -static inline int fpu_alloc(struct fpu *fpu) -{ - if (fpu->state) - return 0; - fpu->state = kmem_cache_alloc(task_xstate_cachep, GFP_KERNEL); - if (!fpu->state) - return -ENOMEM; - WARN_ON((unsigned long)fpu->state & 15); - return 0; -} +extern int fpu_alloc(struct fpu *fpu); static inline void fpu_free(struct fpu *fpu) { diff --git a/arch/x86/kernel/i387.c b/arch/x86/kernel/i387.c index 5e4dae70ffa5..05fcc90087b0 100644 --- a/arch/x86/kernel/i387.c +++ b/arch/x86/kernel/i387.c @@ -246,6 +246,18 @@ void fpu_finit(struct fpu *fpu) } EXPORT_SYMBOL_GPL(fpu_finit); +int fpu_alloc(struct fpu *fpu) +{ + if (fpu->state) + return 0; + fpu->state = kmem_cache_alloc(task_xstate_cachep, GFP_KERNEL); + if (!fpu->state) + return -ENOMEM; + WARN_ON((unsigned long)fpu->state & 15); + return 0; +} +EXPORT_SYMBOL_GPL(fpu_alloc); + /* * Allocate the backing store for the current task's FPU registers * and initialize the registers themselves as well. -- 2.1.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
