Messages in this thread | | | Date | Thu, 23 Mar 2023 12:23:33 +0000 | From | Matthew Wilcox <> | Subject | Re: [PATCH] fs/buffer: adjust the order of might_sleep() in __getblk_gfp() |
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On Thu, Mar 23, 2023 at 05:37:52PM +0800, gouhao@uniontech.com wrote: > From: Gou Hao <gouhao@uniontech.com> > > If 'bh' is found in cache, just return directly. > might_sleep() is only required on slow paths.
You're missing the point. The caller can't know whether the slow or fast path will be taken. So it must _never_ call this function if it cannot sleep.
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