[LU-12400] Support for linux kernel version 5.2

• Type: Improvement
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.14.0
• Labels: LTS12
• Assignee: Shaun Tancheff
• Reporter: Shaun Tancheff

Description

Support for building lustre / ldiskfs with current upstream kernels

Added iov_iter_type needed to iterate over iovec
vm_fault_t used for (some) vm_operations_struct handlers
SunRPC cache hash lock is now a spinlock_t, readers are now all RCU

ldiskfs:
__ext4_find_entry became a helper function for ext4_find_entry
[breaking a few ldiskfs patches]

Multi-page bvec has landed, use bvec_iter_all

extfs_dirhash now requires a directory (for case-insensitive directories).

ib_sg_dma_address() and ib_sg_dma_len() are removed

With CONFIG_ARCH_STACKWALK stack_trace_save_tsk() is not exported.

y2038: SO_SNDTIMEO, SO_RCVTIMEO removed

legacy 'get_ds()' function is removed

Use the new vm_fault_t type (optional)

 

Issue Links

• is related to: LU-14463 stack traces not being printed to console on RHEL8