FDP fixes #1790
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FDP fixes #1790
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The current way of initilization limits ruhs from 0 to 127. Although fio supports a maximum of 128 ruhs, for the files supporting more the 128 placement ids user has the flexibility of specifying any 128 placement id index at a time. This commit updates the way we fetch ruhs. We now fetch the ruhs info in two steps. The first step only gets us the number of ruhs from the ioengine. This is used by fdp backend to allocate the correct buffer size for the second step, where we fetch the actual ruhs info. Signed-off-by: Ankit Kumar <ankit.kumar@samsung.com>
Use calloc instead of scalloc as ruhs buffer allocation is temporary. Remove the restriction on maximum number of ruhs, fetch and fill the ruhs buffer as requested by fdp backend. Signed-off-by: Ankit Kumar <ankit.kumar@samsung.com>
Remove the restriction on maximum number of ruhs, fetch and fill the ruhs buffer as requested by fdp backend. Signed-off-by: Ankit Kumar <ankit.kumar@samsung.com>
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I applied the patches instead of merging the PR because I slightly edited the commit message for this first patch. https://git.kernel.dk/cgit/fio/commit/?id=56d12245953b4ae147784db2e77b1609197df4a0 |
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I will take a closer look but I think this change will allow us to get rid of |
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The current way of fdp ruhs initialization limited it to a maximum of 128 ruhs descriptors. Fio allows a total of 128 placement id
indices at a time, but for devices supporting more the 128 ruhs, users should have the ability to pass any 128 placement id index / indices (0 to max number of ruhs - 1). This series fixes that.