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* fix(mount): preserve acknowledged chunks during attribute updates * mount: keep the WFS field block aligned Adding the publication-lock fields inside the aligned block made gofmt re-indent 25 unrelated lines. Put them in their own group after dirIdleEvict, matching the enterprise layout, so syncs do not conflict there. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> * mount: finish attribute saves through a FUSE interrupt saveEntryAttributes derived its RPC context from the syscall's cancel channel, so an interrupt while the conditional UpdateEntry was at the owner returned EIO for an update the owner then applied, and skipped the local install and retention. Keep the metadata deadline but drop the cancellation, like the other metadata mutations. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> * mount: map attribute CAS ids in place instead of cloning the entry saveEntryAttributes cloned the whole entry three times per attempt only to rewrite uid/gid for the filer, and each clone is as large as the chunk list. Switch the ids in place and restore the exact local values after the call, keeping one clone. The test now checks the reply carries the local uid. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> * mount: compare attribute updates against the filer's own uid/gid With -map.uid/-map.gid, a filer id that is also a mapped local id reads back unchanged and maps forward to another filer id. The IF_ENTRY_EQUAL expected entry then never matched, so chmod, utimes and xattr changes on such files failed with EAGAIN after three attempts, and an update would have rewritten the owner. Keep the filer ids read with the entry for the ids the syscall leaves alone. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> * fix(mount): align attribute retention with read lock order * mount: take the handle lock before entryLock in the attribute snapshot attributeEntrySnapshot held entryLock while it queued for the shared handle lock. A Read holding that lock waits on entryLock, the snapshot waits behind a queued exclusive (an invalidation or a Write), and the exclusive waits on the Read. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> * fix(mount): complete handle lock order and preserve explicit ID intent * mount: re-read a refused attribute update from the file's owner filer The filer checks the IF_ENTRY_EQUAL condition on the owner of the path's write route key. The retry read any filer, so behind one that had not applied the owner's latest update, every attempt sent the same stale base and the syscall failed with EAGAIN. Read from the owner once the lock ring is known, like lookupFilerEntry, but keep the filer's raw ids. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> --------- Co-authored-by: Chris Lu <chrislusf@users.noreply.github.com> Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>