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by adrianratnapala
3595 days ago
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If you crash at (3) you can -- at least in principle -- have "link" pointing to garbage (most likely an empty file). That is, the dirent points to the new inode, but the actual link-text got lost with the crash. Now on modern filesystems, a non-huge symlink will be stored in the inode itself and presumably enjoys some sort of atomicity. But there is nothing in the standard about that. |
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No, I don't think you can, bugs notwithstanding. A "link" (§3.130) is what POSIX calls a directory entry.
> But there is nothing in the standard about that.
The "standard" (POSIX) doesn't talk much about crashing, however if mkdir("a") could destroy "b" – even during a system crash (§3.387), then users would complain.