BTRFS ACLs enabled by default?

For Developers
1

Are btrfs acls enabled by default like in ext4, etc in 24.10?

2

menuconfig says, "Yes."

  | Symbol: KERNEL_BTRFS_FS_POSIX_ACL [=y]                                                                                                                                                          │
  │ Type  : bool                                                                                                                                                                                    │
  │ Defined at config/Config-kernel.in:1326                                                                                                                                                         │
  │   Prompt: Enable POSIX ACL for BtrFS Filesystems                                                                                                                                                │
  │   Location:                                                                                                                                                                                     │
  │     -> Global build settings                                                                                                                                                                    │
  │       -> Kernel build options                                                                                                                                                                   │
  │         -> Filesystem ACL and attr support options                                                                                                                                              │
  │ (5)       -> Enable POSIX ACL for BtrFS Filesystems (KERNEL_BTRFS_FS_POSIX_ACL [=y])                                                                                                            │
  │ Selects: KERNEL_FS_POSIX_ACL [=y]                                                                                                                                                               │
  │ Selected by [n]:                                                                                                                                                                                │
  │   - TARGET_layerscape_armv8_64b [=n] && <choice> && TARGET_layerscape [=n]                                                                                                                      │
  │   - DOCKER_STO_BTRFS [=n] && PACKAGE_dockerd [=n]                                 ```
3

bear in mind btrfs is only really useable on 64 bit cpu systems

You can load it on 32 bit systems but you will run into problems, for instance if the file size gets too big.

4

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