[LU-16603] OBD_BRW_COMPRESSED flag Created: 28/Feb/23 Updated: 21/Jun/23 Resolved: 22/Mar/23 |
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| Status: | Resolved |
| Project: | Lustre |
| Component/s: | None |
| Affects Version/s: | None |
| Fix Version/s: | Lustre 2.16.0 |
| Type: | Improvement | Priority: | Minor |
| Reporter: | Alex Zhuravlev | Assignee: | Alex Zhuravlev |
| Resolution: | Fixed | Votes: | 0 |
| Labels: | None | ||
| Issue Links: |
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| Rank (Obsolete): | 9223372036854775807 | ||||||||
| Description |
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Add an OBD_BRW_COMPRESSED flag to OST_WRITE to hint server data is compressed. This allows the block allocator (mballoc in ldiskfs) to avoid keeping holes in the on-disk block allocation when it gets "sparse" writes from the client due to compressed niobufs being sent. |
| Comments |
| Comment by Gerrit Updater [ 28/Feb/23 ] |
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"Alex Zhuravlev <bzzz@whamcloud.com>" uploaded a new patch: https://review.whamcloud.com/c/fs/lustre-release/+/50154 |
| Comment by Gerrit Updater [ 21/Mar/23 ] |
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"Oleg Drokin <green@whamcloud.com>" merged in patch https://review.whamcloud.com/c/fs/lustre-release/+/50154/ |
| Comment by Peter Jones [ 22/Mar/23 ] |
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Landed for 2.16 |