Reintroduce IO accounting on zvols #3741
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ryao
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Sep 7, 2015
openzfs/zfs@e20cd6f When I originally wrote that last year, the symbols we needed to maintain IO accounting were GPL exported, but new symbols were introduced by torvalds/linux@394ffa5 4 months later. We can call those to restore the IO accounting on Linux 3.19 and later as well as any older kernels where that patch is backported. Closes openzfs#3741 Signed-off-by: Richard Yao <ryao@gentoo.org>
ryao
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Sep 7, 2015
openzfs/zfs@e20cd6f caused us to lose IO accounting on zvols. When I originally wrote that last year, the symbols we needed to maintain IO accounting were GPL exported, but torvalds/linux@394ffa5 provided suitable symbols for restoring this functionality 4 months later. We can call them to restore the IO accounting on Linux 3.19 and later as well as any older kernels where that patch is backported. Closes openzfs#3741 Signed-off-by: Richard Yao <ryao@gentoo.org>
ryao
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Sep 7, 2015
openzfs/zfs@e20cd6f caused us to lose IO accounting on zvols. When I originally wrote that last year, the symbols we needed to maintain IO accounting were GPL exported, but torvalds/linux@394ffa5 provided suitable symbols for restoring this functionality 4 months later. We can call them to restore the IO accounting on Linux 3.19 and later as well as any older kernels where that patch is backported. Closes openzfs#3741 Signed-off-by: Richard Yao <ryao@gentoo.org>
ryao
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Sep 8, 2015
openzfs/zfs@e20cd6f caused us to lose IO accounting on zvols. When I originally wrote that last year, the symbols we needed to maintain IO accounting were GPL exported, but torvalds/linux@394ffa5 provided suitable symbols for restoring this functionality 4 months later. We can call them to restore the IO accounting on Linux 3.19 and later as well as any older kernels where that patch is backported. Closes openzfs#3741 Signed-off-by: Richard Yao <ryao@gentoo.org>
ryao
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Sep 8, 2015
openzfs/zfs@e20cd6f caused us to lose IO accounting on zvols. When I originally wrote that last year, the symbols we needed to maintain IO accounting were GPL exported, but torvalds/linux@394ffa5 provided suitable symbols for restoring this functionality 4 months later. We can call them to restore the IO accounting on Linux 3.19 and later as well as any older kernels where that patch is backported. Closes openzfs#3741 Signed-off-by: Richard Yao <ryao@gentoo.org>
ryao
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Sep 8, 2015
openzfs/zfs@e20cd6f caused us to lose IO accounting on zvols. When I originally wrote that last year, the symbols we needed to maintain IO accounting were GPL exported, but torvalds/linux@394ffa5 provided suitable symbols for restoring this functionality 4 months later. We can call them to restore the IO accounting on Linux 3.19 and later as well as any older kernels where that patch is backported. Closes openzfs#3741 Signed-off-by: Richard Yao <ryao@gentoo.org>
ryao
added a commit
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this issue
Sep 8, 2015
openzfs/zfs@e20cd6f caused us to lose IO accounting on zvols. When I originally wrote that last year, the symbols we needed to maintain IO accounting were GPL exported, but torvalds/linux@394ffa5 provided suitable symbols for restoring this functionality 4 months later. We can call them to restore the IO accounting on Linux 3.19 and later as well as any older kernels where that patch is backported. Closes openzfs#3741 Signed-off-by: Richard Yao <ryao@gentoo.org>
ryao
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Sep 8, 2015
openzfs/zfs@e20cd6f caused us to lose IO accounting on zvols. When I originally wrote that last year, the symbols we needed to maintain IO accounting were GPL exported, but torvalds/linux@394ffa5 provided suitable symbols for restoring this functionality 4 months later. We can call them to restore the IO accounting on Linux 3.19 and later as well as any older kernels where that patch is backported. Closes openzfs#3741 Signed-off-by: Richard Yao <ryao@gentoo.org>
ryao
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Sep 8, 2015
openzfs/zfs@e20cd6f caused us to lose IO accounting on zvols. When I originally wrote that last year, the symbols we needed to maintain IO accounting were GPL exported, but torvalds/linux@394ffa5 provided suitable symbols for restoring this functionality 4 months later. We can call them to restore the IO accounting on Linux 3.19 and later as well as any older kernels where that patch is backported. Closes openzfs#3741 Signed-off-by: Richard Yao <ryao@gentoo.org>
tomgarcia
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Sep 11, 2015
openzfs/zfs@e20cd6f caused us to lose IO accounting on zvols. When I originally wrote that last year, the symbols we needed to maintain IO accounting were GPL exported, but torvalds/linux@394ffa5 provided suitable symbols for restoring this functionality 4 months later. We can call them to restore the IO accounting on Linux 3.19 and later as well as any older kernels where that patch is backported. Signed-off-by: Richard Yao <ryao@gentoo.org> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes openzfs#3741
ryao
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Oct 6, 2015
openzfs/zfs@e20cd6f caused us to lose IO accounting on zvols. When I originally wrote that last year, the symbols we needed to maintain IO accounting were GPL exported, but torvalds/linux@394ffa5 provided suitable symbols for restoring this functionality 4 months later. We can call them to restore the IO accounting on Linux 3.19 and later as well as any older kernels where that patch is backported. Signed-off-by: Richard Yao <ryao@gentoo.org> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes openzfs#3741
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e20cd6f caused us to lose IO accounting on zvols. As I had written in the commit message for 37f9dac, the symbols we needed to maintain IO accounting were GPL exported when I wrote the zvol rework last year, but torvalds/linux@394ffa5 provided suitable symbols 4 months later. We can call those to restore the IO accounting on Linux 3.19+ as well as any older kernels where that patch is backported. I am making this issue to preempt any feature request issues from users now that the zvol rework has been merged and to serve as a reminder to myself.
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