Messages in this thread | | | Subject | O_DIRECT read and holes in 2.5.26 | From | Stephen Lord <> | Date | 18 Jul 2002 03:43:08 -0500 |
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Andrew,
Did you realize that the new O_DIRECT code in 2.5 cannot read over holes in a file. The old code filled the user buffer with zeros, the new code returned EINVAL if the getblock function returns an unmapped buffer. With this exception, XFS does work with the new code - with more cpu overhead than before due to the once per page getblock calls.
Steve
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