[
    {
        "EventCode": "0x8",
        "Counter": "0,1,2,3",
        "UMask": "0x1",
        "EventName": "DTLB_LOAD_MISSES.ANY",
        "SampleAfterValue": "200000",
        "BriefDescription": "DTLB load misses"
    },
    {
        "EventCode": "0x8",
        "Counter": "0,1,2,3",
        "UMask": "0x80",
        "EventName": "DTLB_LOAD_MISSES.LARGE_WALK_COMPLETED",
        "SampleAfterValue": "200000",
        "BriefDescription": "DTLB load miss large page walks"
    },
    {
        "EventCode": "0x8",
        "Counter": "0,1,2,3",
        "UMask": "0x20",
        "EventName": "DTLB_LOAD_MISSES.PDE_MISS",
        "SampleAfterValue": "200000",
        "BriefDescription": "DTLB load miss caused by low part of address"
    },
    {
        "EventCode": "0x8",
        "Counter": "0,1,2,3",
        "UMask": "0x10",
        "EventName": "DTLB_LOAD_MISSES.STLB_HIT",
        "SampleAfterValue": "2000000",
        "BriefDescription": "DTLB second level hit"
    },
    {
        "EventCode": "0x8",
        "Counter": "0,1,2,3",
        "UMask": "0x2",
        "EventName": "DTLB_LOAD_MISSES.WALK_COMPLETED",
        "SampleAfterValue": "200000",
        "BriefDescription": "DTLB load miss page walks complete"
    },
    {
        "EventCode": "0x8",
        "Counter": "0,1,2,3",
        "UMask": "0x4",
        "EventName": "DTLB_LOAD_MISSES.WALK_CYCLES",
        "SampleAfterValue": "200000",
        "BriefDescription": "DTLB load miss page walk cycles"
    },
    {
        "EventCode": "0x49",
        "Counter": "0,1,2,3",
        "UMask": "0x1",
        "EventName": "DTLB_MISSES.ANY",
        "SampleAfterValue": "200000",
        "BriefDescription": "DTLB misses"
    },
    {
        "EventCode": "0x49",
        "Counter": "0,1,2,3",
        "UMask": "0x80",
        "EventName": "DTLB_MISSES.LARGE_WALK_COMPLETED",
        "SampleAfterValue": "200000",
        "BriefDescription": "DTLB miss large page walks"
    },
    {
        "EventCode": "0x49",
        "Counter": "0,1,2,3",
        "UMask": "0x20",
        "EventName": "DTLB_MISSES.PDE_MISS",
        "SampleAfterValue": "200000",
        "BriefDescription": "DTLB misses caused by low part of address. Count also includes 2M page references because 2M pages do not use the PDE."
    },
    {
        "EventCode": "0x49",
        "Counter": "0,1,2,3",
        "UMask": "0x10",
        "EventName": "DTLB_MISSES.STLB_HIT",
        "SampleAfterValue": "200000",
        "BriefDescription": "DTLB first level misses but second level hit"
    },
    {
        "EventCode": "0x49",
        "Counter": "0,1,2,3",
        "UMask": "0x2",
        "EventName": "DTLB_MISSES.WALK_COMPLETED",
        "SampleAfterValue": "200000",
        "BriefDescription": "DTLB miss page walks"
    },
    {
        "EventCode": "0x49",
        "Counter": "0,1,2,3",
        "UMask": "0x4",
        "EventName": "DTLB_MISSES.WALK_CYCLES",
        "SampleAfterValue": "2000000",
        "BriefDescription": "DTLB miss page walk cycles"
    },
    {
        "EventCode": "0x4F",
        "Counter": "0,1,2,3",
        "UMask": "0x10",
        "EventName": "EPT.WALK_CYCLES",
        "SampleAfterValue": "2000000",
        "BriefDescription": "Extended Page Table walk cycles"
    },
    {
        "EventCode": "0xAE",
        "Counter": "0,1,2,3",
        "UMask": "0x1",
        "EventName": "ITLB_FLUSH",
        "SampleAfterValue": "2000000",
        "BriefDescription": "ITLB flushes"
    },
    {
        "PEBS": "1",
        "EventCode": "0xC8",
        "Counter": "0,1,2,3",
        "UMask": "0x20",
        "EventName": "ITLB_MISS_RETIRED",
        "SampleAfterValue": "200000",
        "BriefDescription": "Retired instructions that missed the ITLB (Precise Event)"
    },
    {
        "EventCode": "0x85",
        "Counter": "0,1,2,3",
        "UMask": "0x1",
        "EventName": "ITLB_MISSES.ANY",
        "SampleAfterValue": "200000",
        "BriefDescription": "ITLB miss"
    },
    {
        "EventCode": "0x85",
        "Counter": "0,1,2,3",
        "UMask": "0x80",
        "EventName": "ITLB_MISSES.LARGE_WALK_COMPLETED",
        "SampleAfterValue": "200000",
        "BriefDescription": "ITLB miss large page walks"
    },
    {
        "EventCode": "0x85",
        "Counter": "0,1,2,3",
        "UMask": "0x2",
        "EventName": "ITLB_MISSES.WALK_COMPLETED",
        "SampleAfterValue": "200000",
        "BriefDescription": "ITLB miss page walks"
    },
    {
        "EventCode": "0x85",
        "Counter": "0,1,2,3",
        "UMask": "0x4",
        "EventName": "ITLB_MISSES.WALK_CYCLES",
        "SampleAfterValue": "2000000",
        "BriefDescription": "ITLB miss page walk cycles"
    },
    {
        "PEBS": "1",
        "EventCode": "0xCB",
        "Counter": "0,1,2,3",
        "UMask": "0x80",
        "EventName": "MEM_LOAD_RETIRED.DTLB_MISS",
        "SampleAfterValue": "200000",
        "BriefDescription": "Retired loads that miss the DTLB (Precise Event)"
    },
    {
        "PEBS": "1",
        "EventCode": "0xC",
        "Counter": "0,1,2,3",
        "UMask": "0x1",
        "EventName": "MEM_STORE_RETIRED.DTLB_MISS",
        "SampleAfterValue": "200000",
        "BriefDescription": "Retired stores that miss the DTLB (Precise Event)"
    }
]t;axboe@fb.com&gt;</td><td class='right'>2017-02-06 09:34:46 -0700</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/tools/virtio/ringtest/README?h=nds-private-remove&amp;id=eeeefd41843218c55a8782a6920f044d9bf6207a'>eeeefd41843218c55a8782a6920f044d9bf6207a</a> (<a href='/cgit.cgi/linux/net-next.git/patch/tools/virtio/ringtest/README?id=eeeefd41843218c55a8782a6920f044d9bf6207a'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?h=nds-private-remove&amp;id=eeeefd41843218c55a8782a6920f044d9bf6207a'>c342eac46626e62745aa8e1a982626efca8b121d</a> /<a href='/cgit.cgi/linux/net-next.git/tree/tools/virtio/ringtest/README?h=nds-private-remove&amp;id=eeeefd41843218c55a8782a6920f044d9bf6207a'>tools/virtio/ringtest/README</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/tools/virtio/ringtest/README?h=nds-private-remove&amp;id=c14024dbb156c8392908aaa822097d27c6af8ec8'>c14024dbb156c8392908aaa822097d27c6af8ec8</a> (<a href='/cgit.cgi/linux/net-next.git/diff/tools/virtio/ringtest/README?h=nds-private-remove&amp;id=eeeefd41843218c55a8782a6920f044d9bf6207a&amp;id2=c14024dbb156c8392908aaa822097d27c6af8ec8'>diff</a>)</td></tr></table>
<div class='commit-subject'>block: don't try Write Same from __blkdev_issue_zeroout</div><div class='commit-msg'>Write Same can return an error asynchronously if it turns out the
underlying SCSI device does not support Write Same, which makes a
proper fallback to other methods in __blkdev_issue_zeroout impossible.
Thus only issue a Write Same from blkdev_issue_zeroout an don't try it
at all from __blkdev_issue_zeroout as a non-invasive workaround.

Signed-off-by: Christoph Hellwig &lt;hch@lst.de&gt;
Reported-by: Junichi Nomura &lt;j-nomura@ce.jp.nec.com&gt;
Fixes: e73c23ff ("block: add async variant of blkdev_issue_zeroout")
Tested-by: Junichi Nomura &lt;j-nomura@ce.jp.nec.com&gt;
Signed-off-by: Jens Axboe &lt;axboe@fb.com&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&amp;id=eeeefd41843218c55a8782a6920f044d9bf6207a'>Diffstat</a> (limited to 'tools/virtio/ringtest/README')</div><table summary='diffstat' class='diffstat'>