| commit | 0065a9a6850289d6f5c3cf66589d2eb20b11b4f2 | [log] [tgz] |
|---|---|---|
| author | Adam Barth <abarth@fuchsia.infra.roller.google.com> | Wed Feb 07 19:43:22 2024 +0000 |
| committer | Copybara-Service <copybara-worker@google.com> | Wed Feb 07 11:45:10 2024 -0800 |
| tree | 1ab05d8c0cfc80f475e423798cdb12bde4f42ab5 | |
| parent | 27a61c907c0d6affec77de1ebdc4672086ae7c59 [diff] |
[roll] Roll fuchsia [starnix][splice] Do not eagerly lock file offsets Our implementation of `splice` was eagerly locking the offsets for its operands. This locking is usually not necessary. For example, one of the operands is always a pipe, which does not need to lock its file offset. Similarly, if when the operand is a fuse device, the lock isn't needed because those devices do not use offsets. This CL resolves a deadlock which can occur when multiple threads are reading and writing a fuse device using splice. Now, we take the offset locks using the normal offset locking machinery, which is aware of when various operations block. Additionally, this CL removes the `read_raw` and `write_raw` operations on files because these operations no longer have any clients. Original-Bug: b/323001474 Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/986421 Original-Revision: 72ce1306030c62011b116688fde1c033324ce42b GitOrigin-RevId: 6f2587a9ee801fb827eb6a80f7861d7523e62d43 Change-Id: If912f5678c3fda79290b246d0c4d0954682bf74d
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