[LU-19172] Limit radix nodes to GENRADIX_NODE_SIZE (512 bytes)

• Type: Bug
• Resolution: Fixed
• Priority: Medium
• Fix Version/s: Lustre 2.17.0
• Severity: 3
• Assignee: Shaun Tancheff
• Reporter: Shaun Tancheff

Description

Linux commit v6.8-rc6-113-g3a319a2476d2
lib/generic-radix-tree.c: Make nodes more reasonably sized

Sets the maximum size of GENRADIX_NODE_SIZE to 512 bytes

Shrink users to avoid BUILD_BUG_ON():
In function ‘__idx_to_offset’,
inlined from ‘lustre_targets_dump’ at .../kernelcomm.c:525:9:
././include/linux/compiler_types.h:536:45: error: call to
'__compiletime_assert_323' declared with attribute error:
BUILD_BUG_ON failed: obj_size > GENRADIX_NODE_SIZE