Linux 7.2-rc7 Restoring Btrfs Fixup Worker Infrastructure To Address Silent Data Loss
Linux 7.2-rc7 Restoring Btrfs Fixup Worker Infrastructure To Address Silent Data Loss Written by Michael Larabel in Linux Storage on 6 August 2026 at 05:09 PM EDT. Add A Comment Back during the Linux 7.2 merge window the Btrfs file-system dropped its COW fixup mechanism, which was used to detect dirty pages without an ordered extent. This code was removed as it was believed the kernel's memory management layer had solved the underlying conditions but in reality it ended up leading to silent data loss.
- ▪Linux 7.2-rc7 Restoring Btrfs Fixup Worker Infrastructure To Address Silent Data Loss Written by Michael Larabel in Linux Storage on 6 August 2026 at 05:09 PM EDT.
- ▪Add A Comment Back during the Linux 7.2 merge window the Btrfs file-system dropped its COW fixup mechanism, which was used to detect dirty pages without an ordered extent.
- ▪This code was removed as it was believed the kernel's memory management layer had solved the underlying conditions but in reality it ended up leading to silent data loss.
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Record
| Original publisher | Phoronix |
| Canonical URL | https://www.phoronix.com/news/Btrfs-Restores-Fixup-Worker |
| Publication time | Thu, 06 Aug 2026 17:09:10 -0400 |
| Retrieval time | 2026-08-06T21:15:47.872Z |
| Last seen | 2026-08-06T21:15:47.872Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | cupYk3OL8VGv · 1 stories |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
Rights status (four layers)
WeSearch handling by dimension
| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
Linux 7.2-rc7 Restoring Btrfs Fixup Worker Infrastructure To Address Silent Data Loss Written by Michael Larabel in Linux Storage on 6 August 2026 at 05:09 PM EDT. Add A Comment Back during the Linux 7.2 merge window the Btrfs file-system dropped its COW fixup mechanism, which was used to detect dirty pages without an ordered extent. This code was removed as it was believed the kernel's memory management layer had solved the underlying conditions but in reality it ended up leading to silent data loss. That Btrfs fixup worker infrastructure is now restored in time for Linux 7.2-rc7 this weekend and the stable v7.2 kernel later this month. SUSE's David Sterba sent in a pull request today dedicated to bringing back the fixup worker infrastructure.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at Phoronix.