Messages in this thread |  | | From | "Peter T. Breuer" <> | Subject | using a device in O_DIRECT mode through a FS | Date | Sat, 31 Aug 2002 19:51:30 +0200 (MET DST) |
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I've managed to mount a block device in "direct" mode in 2.5.31, by modifying the block driver to set the O_DIRECT flag on opens, but this doesn't affect subsequent accesses to files on the mounted filesystem. They're cached in VMS as usual, instead of going straight to the metal and back.
Can anyone indicate to me what I have to do in order to make all accesses to structures on the mounted FS avoid VMS also? Is it a FS thing? If so, what do I have to alter where in the FS driver? (Yes, I imagine it's whatever the open call translates to ..).
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