lock_kernel(), mutex and VFS

[Diego Woitasen <diego@xxxxxxxxxxxxxxx>]

Hi,
	Reading arch/x86/kernel/cpuid.c I saw that lock_kernel() is used
	to protect offset variable. I think is better to use a lock in
	struct file to do that and all operations that touch some
	"struct file" take a local lock. 

	I think that the use of BLK could be reduced using a lock in
	struct file.
	
	My question is, Is that posiblle or I'm missing something?


	regards,
		diegows

-- 

--------------
Diego Woitasen

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