On 30.04.2019 12:08, Cyrill Gorcunov wrote: > On Tue, Apr 30, 2019 at 11:55:45AM +0300, Kirill Tkhai wrote: >>> - up_write(&mm->mmap_sem); >>> + spin_unlock(&mm->arg_lock); >>> + up_read(&mm->mmap_sem); >>> return error; >> >> Hm, shouldn't spin_lock()/spin_unlock() pair go as a fixup to existing code >> in a separate patch? >> >> Without them, the existing code has a problem at least in get_mm_cmdline(). > > Seems reasonable to merge it into patch 1. Sounds sensibly.
