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Date: Fri, 17 Jul 2020 08:02:36 +0200 From: Sedat Dilek <sedat.dilek@...il.com> To: Eric Biggers <ebiggers@...nel.org> Cc: linux-fsdevel@...r.kernel.org, linux-xfs@...r.kernel.org, linux-ext4@...r.kernel.org Subject: Re: [PATCH v2] fs/direct-io: fix one-time init of ->s_dio_done_wq On Fri, Jul 17, 2020 at 7:08 AM Eric Biggers <ebiggers@...nel.org> wrote: > - The preliminary checks for sb->s_dio_done_wq are a data race, since > they do a plain load of a concurrently modified variable. According > to the C standard, this undefined behavior. In practice, the kernel > does sometimes makes assumptions about data races might be okay in Some small typos: ...this *is* undefined behavior... ...does sometimes make* assumptions about... - Sedat -
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