Messages in this thread | | | Date | Wed, 22 Jul 2020 08:10:44 +0200 | From | Christoph Hellwig <> | Subject | Re: [PATCH] kernel: add a kernel_wait helper |
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On Tue, Jul 21, 2020 at 02:18:38PM -0700, Andrew Morton wrote: > On Tue, 21 Jul 2020 15:04:49 +0200 Christoph Hellwig <hch@lst.de> wrote: > > > Add a helper that waits for a pid and stores the status in the passed > > in kernel pointer. Use it to fix the usage of kernel_wait4 in > > call_usermodehelper_exec_sync that only happens to work due to the > > implicit set_fs(KERNEL_DS) for kernel threads. > > I guess it's cleaner, although it's a bit sad to be adding code to > address a non-problem. > > Did you consider a simpler kernel_wait() which just wraps a > set_fs(KERNEL_DS) around a call to kernel_wait4()?
I'm about to kill set_fs and this one of the last users in linux-next..
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