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SubjectRe: [PATCH] removes filp_count_lock and changes nr_files type to atomic_t
Christoph Hellwig a écrit :
> On Thu, Aug 25, 2005 at 10:45:12AM +0200, Eric Dumazet wrote:
>>This patch assumes that atomic_read() is a plain {return v->counter;} on
>>all architectures. (keywords : sysctl, /proc/sys/fs/file-nr, proc_dointvec)
> But that's not true. You need to write you own sysctl handler for it,
> probably worth adding a generic atomic_t sysctl handler while you're
> at it.

I checked linux-2.6.13-rc7 tree, and atomic_read() is just a wrapper to read

In the ancient times, yes, atomic_read() was different on some archs, but not


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