Fix key performance issues in 6.17 with byte range locks - #202

Merged

hbirth merged 23 commits into

DDNStorage:redfs-ubuntu-hwe-6.17.0-16.16-24.04.1from

hbirth:redfs-ubuntu-hwe-6.17.0-16.16-24.04.1

Sep 3, 2026

Commits on Aug 26, 2026

fuse: refuse a writeback connection whose block is not a page
hbirth
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7499e44
fuse: take a DLM read lock for the readahead window
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8c2ff0e

Commits on Sep 2, 2026

fuse: hold DLM grants as a bitmap and drive every path from it
hbirth
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df8dba4
fuse: carry the write retry flag in iomap's private pointer
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8dbaa7d
fuse: retry a DLM grant the server refuses as contended
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8b6c052
fuse: keep a folio writeback could not send
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36f2271
fuse: keep the local size against an attribute reply already on the wire
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0ea5d2b
fuse: do not ask for a grant from inside the revoke handler
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d54291c
fuse: take the writeback grant with no folio held
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e3b4dcc
fuse: do not record a grant past what a revoke could mark
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aa780aa
fuse: say that the readahead grant is taken under the folio locks
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b7803bb
fuse: bound the range a writeback pass defers
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0afd37f
fuse: put a skipped folio back on the dirty list after iomap lets go
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9026def
fuse: fix the two writethrough paths a large folio breaks
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3db23d8
fuse: do not lose a folio writeback declined to send
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aa211e9
fuse: pin a dlm grant from confirmation to dirty
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83aa237
fuse: default large folios off
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ef6753f
fuse: write back before a laundering drop
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8934c17
fuse: flush before the open time drop
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21fb990
fuse: start the fsync writeback before the lock
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2272b0c
fuse: drop the writeback folio token
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2871de3

Commits on Sep 3, 2026

fuse: kick writeback on a streamed file
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bb81356
fuse: send a streamed write from write(2)
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71f6c4d