Messages in this thread |  | | Date | Tue, 25 Sep 2001 20:55:12 +0200 | From | Andrea Arcangeli <> | Subject | Re: O_DIRECT as a mount option? |
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On Tue, Sep 25, 2001 at 12:51:44PM -0500, Bob McElrath wrote: > With O_DIRECT (buffer cache bypass open() flag) now in the mainstream > kernel, I wonder if people would be opposed to making a "direct" mount > option, which would open all files on the filesystem with the O_DIRECT > flag, just as there exists a "sync" mount option to perform filesystem > transactions synchronously. > > This would allow you to > mount -o direct,sync /dev/hdb1 /mnt/video > And would be useful for things like streaming video applications, > allowing the advantages of O_DIRECT without rewriting every application > you want to use.
you've to audit the app anyways since O_DIRECT enforces alignments on buffer alignment and file offset.
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