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os: os.Root: use O_NOFOLLOW_ANY on macOS #73079

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neild opened this issue Mar 27, 2025 · 0 comments
Open

os: os.Root: use O_NOFOLLOW_ANY on macOS #73079

neild opened this issue Mar 27, 2025 · 0 comments
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LibraryProposal Issues describing a requested change to the Go standard library or x/ libraries, but not to a tool NeedsFix The path to resolution is known, but the work has not been done. OS-Darwin Performance

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neild commented Mar 27, 2025

macOS 11 and later's openat supports an O_NOFOLLOW_ANY flag which causes resolution to fail if any path component contains a symlink. We can use this to implement a fast-path for os.Root operations in the common case when the path does not contain a symlink.
@gabyhelp gabyhelp added the LibraryProposal Issues describing a requested change to the Go standard library or x/ libraries, but not to a tool label Mar 27, 2025
@dmitshur dmitshur added Performance OS-Darwin NeedsFix The path to resolution is known, but the work has not been done. labels Mar 28, 2025
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LibraryProposal Issues describing a requested change to the Go standard library or x/ libraries, but not to a tool NeedsFix The path to resolution is known, but the work has not been done. OS-Darwin Performance
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