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hammer: osd: smaller object_info_t xattrs #6544

Merged
merged 4 commits into from Dec 17, 2015
Merged

hammer: osd: smaller object_info_t xattrs #6544

merged 4 commits into from Dec 17, 2015

Commits on Dec 15, 2015

  1. osd/ReplicatedPG: do not set omap digest if there is no omap 

    We want to avoid encoding it if we can.  And if the FLAG_OMAP is not set
we don't need to *also* store an empty crc.

Signed-off-by: Sage Weil <sage@redhat.com>
    @liewegas
    liewegas committed Dec 15, 2015
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  2. osd/PGBackend: use mtime for digest decision if local_mtime is empty 

    If we don't have a local_mtime value, use mtime instead, for the purposes
of deciding if we should record a digest after scrub.

Signed-off-by: Sage Weil <sage@redhat.com>
    @liewegas
    liewegas committed Dec 15, 2015
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  3. osd/ReplicatedPG: do not set local_mtime on non-tiered pool 

    If a pool isn't tiered, don't bother with setting local_mtime.  The only
users are the tiering agent (which isn't needed if there is not tiering)
and scrub for deciding if an object should get its digest recorded (we can
use mtime instead).

Signed-off-by: Sage Weil <sage@redhat.com>
    @liewegas
    liewegas committed Dec 15, 2015
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  4. osd/osd_types: skip encoding newer object_info_t fields if they are u… 

    …nused

This reduces the size of the encoded object_info_t in most cases,
enough to get us under the 255 byte limit for a single inline
xattr in XFS.

Signed-off-by: Sage Weil <sage@redhat.com>
    @liewegas
    liewegas committed Dec 15, 2015
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