chore(deps): update mergerfs to v2.42.0

[uniget-bot]

This PR contains the following updates:

Package	Update	Change
mergerfs	minor	2.41.1 → 2.42.0

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Release Notes

trapexit/mergerfs (mergerfs)

v2.42.0: mergerfs v2.42.0

Compare Source

mergerfs v2.42.0

Donations / Sponsorship

If you find mergerfs useful please consider supporting its ongoing development.

https://github.com/trapexit/support

New features

• lup (least used percentage) policy: selects the branch with the lowest used space percentage.
• mount.mergerfs now includes the -n flag to support mounting without updating /etc/mtab.

Improvements

• Better lock management and behavior with open files. Reduction of contention.
• Custom filename dedup strategy improving directory reading performance
• Pre-calculate part of the file inode within readdir significantly reducing cost of overall calculation.
• Replace sched_yield with nanosleep for improved scheduling of contention situations.
• improved stat auto cache fingerprinting to reduce stale reads.

Behavior changes

• credential handling reworked to be compatible with chroot and idmap. removed ability to disable default_permissions option as a result as mergerfs now requires the kernel to manage entitlements.
• broken mounts with ENOTCONN (common due to crashed FUSE instances) are automatically unmounted if possible on start instead of hard erroring. (mostly useful while developing).
• fusermount3 will be used if available and other options missing.
• remember-nodes option is deprecated and the feature removed. There is now only never-forget-nodes behavior. Any non-zero value in remember-nodes will enable never-forget-nodes. It was removed because time based really didn't save much memory and complicated the code. Doing this also reduced the size of each node helping offset increased node count.

Bug fixes

• fix race condition between runtime changing of branches and certain requests.
• rmdir no longer returns success if any rmdir call returns ENOTEMPTY.
• Invalid policy names are properly rejected.
• statfs calculation could theoretically have overflowed with impossibly large branch values.
• Fixed readlink buffer size management. The size does not include a nul terminating value.
• Minor calculation bugs in copy_file_range and futimens.
• moveonenospc no longer crashes when all destination branches are rejected. Returns ENOSPC.
• Better / more proper error calculations in a number of functions.
• rare ioctl call crash fixed

Hardening

• many "the kernel should never do this bug just in case" enhancements

Full Changelog

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This PR has been generated by Mend Renovate.

[nicholasdille-bot]

Auto-approved because label type/renovate is present.

[github-actions]

🔍 Vulnerabilities of ghcr.io/uniget-org/tools/mergerfs:2.42.0

📦 Image Reference ghcr.io/uniget-org/tools/mergerfs:2.42.0

digest	sha256:2eeb71743644c12a3f753a249cb3e391a711eaed3f4459f3d0b597f733fe6997
vulnerabilities
platform	linux/amd64
size	1.8 MB
packages	0