On 6/15/16, 03:16, "Christoph Hellwig" <hch@xxxxxxxxxxxxx> wrote:
>Explanation of why reads are more special than writes here or in
>general why they are safe?
>
With the new locking, we already have exclusion between buffered I/O and direct I/O, and so the only remaining use case for inode_dio_wait() is to wait for writes to complete in operations like fsync().
Cheers
Trond
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